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| 2 | ! MODULE : stomate_soilcarbon |
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| 3 | ! |
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| 4 | ! CONTACT : orchidee-help _at_ ipsl.jussieu.fr |
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| 5 | ! |
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| 6 | ! LICENCE : IPSL (2006) |
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| 7 | ! This software is governed by the CeCILL licence see ORCHIDEE/ORCHIDEE_CeCILL.LIC |
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| 8 | ! |
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| 9 | !>\BRIEF Calculate soil dynamics largely following the Century model |
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| 10 | ! |
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| 11 | !! |
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| 12 | !!\n DESCRIPTION: 11 layers discretization: Layers 1-11 are soil layers |
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| 13 | !! |
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| 14 | !! RECENT CHANGE(S): None |
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| 15 | !! |
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| 16 | !! SVN : |
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| 17 | !! $HeadURL$ |
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| 18 | !! $Date$ |
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| 19 | !! $Revision$ |
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| 20 | !! \n |
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| 21 | !_ ================================================================================================================================ |
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| 22 | |
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| 23 | MODULE stomate_soilcarbon |
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| 24 | |
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| 25 | ! modules used: |
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| 26 | USE xios_orchidee |
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| 27 | USE ioipsl_para |
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| 28 | USE stomate_data |
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| 29 | USE constantes |
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| 30 | USE constantes_soil |
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| 31 | USE pft_parameters |
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| 32 | USE pft_parameters_var |
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| 33 | USE vertical_soil |
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| 34 | IMPLICIT NONE |
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| 35 | |
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| 36 | ! private & public routines |
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| 37 | |
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| 38 | PRIVATE |
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| 39 | PUBLIC soilcarbon,soilcarbon_clear |
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| 40 | |
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| 41 | ! Variables shared by all subroutines in this module |
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| 42 | |
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| 43 | LOGICAL, SAVE :: firstcall = .TRUE. !! Is this the first call? (true/false) |
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| 44 | !$OMP THREADPRIVATE(firstcall) |
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| 45 | |
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| 46 | CONTAINS |
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| 47 | |
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| 48 | |
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| 49 | !! ================================================================================================================================ |
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| 50 | !! SUBROUTINE : soilcarbon_clear |
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| 51 | !! |
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| 52 | !>\BRIEF Set the flag ::firstcall to .TRUE. and as such activate sections 1.1.2 and 1.2 of the subroutine soilcarbon |
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| 53 | !! (see below). |
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| 54 | !! |
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| 55 | !_ ================================================================================================================================ |
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| 56 | |
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| 57 | SUBROUTINE soilcarbon_clear |
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| 58 | firstcall=.TRUE. |
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| 59 | ENDSUBROUTINE soilcarbon_clear |
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| 60 | |
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| 61 | |
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| 62 | !! ================================================================================================================================ |
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| 63 | !! SUBROUTINE : soilcarbon |
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| 64 | !! |
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| 65 | !>\BRIEF Computes the soil respiration and carbon stocks, essentially |
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| 66 | !! following Parton et al. (1987). |
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| 67 | !! |
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| 68 | !! DESCRIPTION : The soil is divided into 3 carbon pools, with different |
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| 69 | !! characteristic turnover times : active (1-5 years), slow (20-40 years) |
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| 70 | !! and passive (200-1500 years).\n |
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| 71 | !! There are three types of carbon transferred in the soil:\n |
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| 72 | !! - carbon input in active and slow pools from litter decomposition,\n |
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| 73 | !! - carbon fluxes between the three pools,\n |
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| 74 | !! - carbon losses from the pools to the atmosphere, i.e., soil respiration.\n |
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| 75 | !! |
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| 76 | !! The subroutine performs the following tasks:\n |
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| 77 | !! |
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| 78 | !! Section 1.\n |
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| 79 | !! The flux fractions (f) between carbon pools are defined based on Parton et |
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| 80 | !! al. (1987). The fractions are constants, except for the flux fraction from |
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| 81 | !! the active pool to the slow pool, which depends on the clay content,\n |
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| 82 | !! \latexonly |
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| 83 | !! \input{soilcarbon_eq1.tex} |
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| 84 | !! \endlatexonly\n |
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| 85 | !! In addition, to each pool is assigned a constant turnover time.\n |
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| 86 | !! |
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| 87 | !! Section 2.\n |
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| 88 | !! The carbon input, calculated in the stomate_litter module, is added to the |
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| 89 | !! carbon stock of the different pools.\n |
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| 90 | !! |
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| 91 | !! Section 3.\n |
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| 92 | !! First, the outgoing carbon flux of each pool is calculated. It is |
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| 93 | !! proportional to the product of the carbon stock and the ratio between the |
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| 94 | !! iteration time step and the residence time:\n |
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| 95 | !! \latexonly |
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| 96 | !! \input{soilcarbon_eq2.tex} |
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| 97 | !! \endlatexonly |
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| 98 | !! ,\n |
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| 99 | !! Note that in the case of crops, the additional multiplicative factor |
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| 100 | !! integrates the faster decomposition due to tillage (following Gervois et |
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| 101 | !! al. (2008)). |
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| 102 | !! In addition, the flux from the active pool depends on the clay content:\n |
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| 103 | !! \latexonly |
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| 104 | !! \input{soilcarbon_eq3.tex} |
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| 105 | !! \endlatexonly |
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| 106 | !! ,\n |
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| 107 | !! Each pool is then cut from the carbon amount corresponding to each outgoing |
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| 108 | !! flux:\n |
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| 109 | !! \latexonly |
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| 110 | !! \input{soilcarbon_eq4.tex} |
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| 111 | !! \endlatexonly\n |
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| 112 | !! Second, the flux fractions lost to the atmosphere is calculated in each pool |
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| 113 | !! by subtracting from 1 the pool-to-pool flux fractions. The soil respiration |
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| 114 | !! is then the summed contribution of all the pools,\n |
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| 115 | !! \latexonly |
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| 116 | !! \input{soilcarbon_eq5.tex} |
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| 117 | !! \endlatexonly\n |
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| 118 | !! Finally, each carbon pool accumulates the contribution of the other pools: |
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| 119 | !! \latexonly |
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| 120 | !! \input{soilcarbon_eq6.tex} |
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| 121 | !! \endlatexonly |
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| 122 | !! |
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| 123 | !! RECENT CHANGE(S): None |
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| 124 | !! |
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| 125 | !! MAIN OUTPUTS VARIABLE(S): carbon, resp_hetero_soil |
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| 126 | !! |
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| 127 | !! REFERENCE(S) : |
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| 128 | !! - Parton, W.J., D.S. Schimel, C.V. Cole, and D.S. Ojima. 1987. Analysis of |
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| 129 | !! factors controlling soil organic matter levels in Great Plains grasslands. |
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| 130 | !! Soil Sci. Soc. Am. J., 51, 1173-1179. |
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| 131 | !! - Gervois, S., P. Ciais, N. de Noblet-Ducoudre, N. Brisson, N. Vuichard, |
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| 132 | !! and N. Viovy (2008), Carbon and water balance of European croplands |
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| 133 | !! throughout the 20th century, Global Biogeochem. Cycles, 22, GB2022, |
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| 134 | !! doi:10.1029/2007GB003018. |
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| 135 | !! - Lardy, R, et al., A new method to determine soil organic carbon equilibrium, |
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| 136 | !! Environmental Modelling & Software (2011), doi:10.1016|j.envsoft.2011.05.016 |
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| 137 | !! |
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| 138 | !! FLOWCHART : |
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| 139 | !! \latexonly |
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| 140 | !! \includegraphics[scale=0.5]{soilcarbon_flowchart.jpg} |
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| 141 | !! \endlatexonly |
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| 142 | !! \n |
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| 143 | !_ ================================================================================================================================ |
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| 144 | |
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| 145 | SUBROUTINE soilcarbon (npts, dt, clay, & |
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| 146 | soilcarbon_input, floodcarbon_input, control_temp_soil, control_moist_soil, & |
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| 147 | carbon, & |
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| 148 | resp_hetero_soil, resp_flood_soil, & |
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| 149 | litter_above,litter_below,& |
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| 150 | soilhum, DOC, moist_soil, DOC_EXP, & |
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| 151 | lignin_struc_above, lignin_struc_below, & |
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| 152 | floodout, runoff_per_soil, drainage_per_soil, wat_flux0, wat_flux,& |
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| 153 | bulk_dens, soil_ph, poor_soils, veget_max, soil_mc, soiltile, & |
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| 154 | DOC_to_topsoil, DOC_to_subsoil, flood_frac, & |
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| 155 | precip2ground, precip2canopy, canopy2ground, & |
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| 156 | dry_dep_canopy, DOC_precip2ground, DOC_precip2canopy, DOC_canopy2ground, & |
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| 157 | DOC_infil, DOC_noinfil, interception_storage, biomass, fastr) |
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| 158 | |
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| 159 | !! 0. Variable and parameter declaration |
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| 160 | |
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| 161 | !! 0.1 Input variables |
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| 162 | |
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| 163 | INTEGER(i_std), INTENT(in) :: npts !! Domain size (unitless) |
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| 164 | REAL(r_std), INTENT(in) :: dt !! Time step \f$(dtradia one_day^{-1})$\f |
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| 165 | REAL(r_std), DIMENSION(npts), INTENT(inout) :: clay !! Clay fraction (unitless, 0-1) |
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| 166 | REAL(r_std), DIMENSION(npts), INTENT(inout) :: bulk_dens !! Variable local of bulk density for the moment must change in the futur (kg m-3) |
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| 167 | |
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| 168 | REAL(r_std), DIMENSION(npts), INTENT(in) :: soil_ph !! soil pH (pH unit, 0-14) |
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| 169 | REAL(r_std), DIMENSION(npts), INTENT(in) :: poor_soils !! Fraction of poor soils (0-1) |
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| 170 | REAL(r_std), DIMENSION(npts,nbdl,npool*2), INTENT(in) :: control_temp_soil !! Temperature control of heterotrophic respiration (unitless: 0->1) |
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| 171 | REAL(r_std), DIMENSION(npts,nbdl,nvm), INTENT(in) :: control_moist_soil !! Moisture control of heterotrophic respiration (unitless: 0.25->1) |
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| 172 | |
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| 173 | REAL(r_std), DIMENSION(npts,nlitt,nvm,nelements), INTENT(in) :: litter_above !! Metabolic and structural litter,above ground |
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| 174 | !! The unit is given by m^2 of ground |
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| 175 | !! @tex $(gC m^{-2})$ @endtex |
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| 176 | REAL(r_std), DIMENSION(npts,nlitt,nvm,nbdl,nelements), INTENT(in) ::litter_below !! Metabolic and structural litter, below ground |
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| 177 | !! The unit is given by m^2 of |
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| 178 | !! ground @tex $(gC m^{-2}) $ @endtex |
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| 179 | REAL(r_std), DIMENSION(npts,nbdl), INTENT(in) :: soilhum !! Daily soil humidity of each soil layer |
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| 180 | !! (unitless) |
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| 181 | REAL(r_std), DIMENSION(npts,nvm), INTENT(in) :: lignin_struc_above !! Ratio Lignin content in structural litter, |
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| 182 | !! above ground, (0-1, unitless) |
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| 183 | REAL(r_std), DIMENSION(npts,nvm,nbdl), INTENT(in) :: lignin_struc_below !! Ratio Lignin content in structural litter, |
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| 184 | !! below ground, (0-1, unitless) |
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| 185 | REAL(r_std),DIMENSION (npts), INTENT (in) :: floodout !! flux out of floodplains |
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| 186 | REAL(r_std),DIMENSION (npts,nstm), INTENT (in) :: runoff_per_soil !! Runoff per soil type [mm] |
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| 187 | REAL(r_std),DIMENSION (npts,nstm), INTENT (in) :: drainage_per_soil !! Drainage per soil type [mm] |
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| 188 | REAL(r_std),DIMENSION (npts,nstm), INTENT(in) :: wat_flux0 !! Water flux in the first soil layers exported for soil C calculations(mm) |
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| 189 | REAL(r_std),DIMENSION (npts,nslm,nstm), INTENT(in) :: wat_flux !! Water flux in the soil layers exported for soil C calculations(mm) |
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| 190 | REAL(r_std),DIMENSION(npts,nvm),INTENT(in) :: veget_max !! PFT "Maximal" coverage fraction of a PFT |
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| 191 | !! defined in the input vegetation map |
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| 192 | !! @tex $(m^2 m^{-2})$ @endtex |
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| 193 | !! The unit is given by m^2 of |
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| 194 | !! water @tex $(gC m{-2} of water)$ @endtex |
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| 195 | REAL(r_std),DIMENSION (npts,nbdl,nstm), INTENT(in) :: soil_mc !! soil moisture content \f($m^3 \times m^3$)\f |
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| 196 | REAL(r_std),DIMENSION (npts,nstm), INTENT (in) :: soiltile !! Fraction of each soil tile (0-1, unitless) |
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| 197 | |
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| 198 | REAL(r_std),DIMENSION (npts,nflow), INTENT(in) :: DOC_to_topsoil !! DOC inputs to top of the soil column, from reinfiltration on |
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| 199 | !! floodplains and from irrigation |
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| 200 | !! @tex $(gC m^{-2} day{-1})$ @endtex |
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| 201 | REAL(r_std), DIMENSION(npts,nvm), INTENT(in) :: precip2ground !! Precipitation not intercepted by vegetation |
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| 202 | !! @tex $(mm.dt^{-1})$ @endtex |
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| 203 | REAL(r_std), DIMENSION(npts,nvm), INTENT(in) :: precip2canopy !! Precipitation intercepted by vegetation |
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| 204 | !! @tex $(mm.dt^{-1})$ @endtex |
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| 205 | REAL(r_std), DIMENSION(npts,nvm), INTENT(in) :: canopy2ground !! Water flux from canopy to ground |
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| 206 | !! @tex $(mm.dt^{-1})$ @endtex |
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| 207 | REAL(r_std),DIMENSION (npts,nflow), INTENT(in) :: DOC_to_subsoil !! DOC inputs to bottom of the soil column, from returnflow |
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| 208 | !! in swamps and lakes |
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| 209 | !! @tex $(gC m^{-2} day{-1})$ @endtex |
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| 210 | REAL(r_std), DIMENSION(npts), INTENT(in) :: flood_frac !! Flooded fraction of grid box |
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| 211 | !! @tex $(-)$ @endtex |
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| 212 | REAL(r_std), DIMENSION(npts), INTENT(in) :: fastr !! Fast reservoir (mm) |
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| 213 | |
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| 214 | !! 0.2 Output variables |
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| 215 | |
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| 216 | REAL(r_std), DIMENSION(npts,nvm), INTENT(out) :: resp_hetero_soil !! Soil heterotrophic respiration \f$(gC m^{-2} (dtradia one_day^{-1})^{-1})$\f |
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| 217 | REAL(r_std), DIMENSION(npts,nvm), INTENT(out) :: resp_flood_soil !! Soil heterotrophic respiration when flooded |
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| 218 | !! \f$(gC m^{-2} (dtradia one_\day^{-1})^{-1})$\f |
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| 219 | REAL(r_std), DIMENSION(npts,nvm,nexp,npool,nelements), INTENT(out):: DOC_EXP !! Exported DOC through runoff, drainage, flood, |
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| 220 | !! The unit is given by m^2 of |
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| 221 | !! ground \f$(gC m^{-2} day^{-1})$\f |
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| 222 | REAL(r_std), DIMENSION(npts,nbdl), INTENT(out) :: moist_soil !! moisture in soil for one pixel (m3/m3) |
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| 223 | !! TF-DOC, maybe put all togetehr into one matrix, note that all Throughfall related fluxes are expressed relative to the total area of the pixel |
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| 224 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(out):: dry_dep_canopy !! Increase in canopy storage of soluble OC & DOC |
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| 225 | !! @tex $(gC.m^{-2})$ @endtex |
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| 226 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(out):: DOC_precip2canopy !! Wet deposition of DOC onto canopy |
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| 227 | !! @tex $(gC.m^{-2})$ @endtex |
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| 228 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(out):: DOC_precip2ground !! Wet deposition of DOC not intecepted by canopy |
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| 229 | !! @tex $(gC.m^{-2})$ @endtex |
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| 230 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(out):: DOC_canopy2ground !! Wet deposition of DOC not intecepted by canopy |
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| 231 | !! @tex $(gC.m^{-2})$ @endtex |
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| 232 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(out):: DOC_infil !! Wet deposition of DOC infiltrating into the ground |
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| 233 | !! @tex $(gC.m^{-2})$ @endtex |
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| 234 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(out):: DOC_noinfil !! Wet deposition of DOC going into surface runoff |
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| 235 | !! @tex $(gC.m^{-2})$ @endtex |
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| 236 | !! 0.3 Modified variables |
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| 237 | |
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| 238 | REAL(r_std), DIMENSION(npts,nvm,nbdl,npool,nelements), INTENT(inout) :: soilcarbon_input !! Amount of carbon going into the carbon pools |
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| 239 | !! from litter decomposition \f$(gC m^{-2} day^{-1})$\f |
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| 240 | REAL(r_std), DIMENSION(npts,nvm,npool,nelements), INTENT(inout) :: floodcarbon_input !! Amount of carbon going directly into the water column |
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| 241 | !! from litter decomposition \f$(gC m^{-2} day^{-1})$\f |
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| 242 | REAL(r_std), DIMENSION(npts,ncarb,nvm,nbdl), INTENT(inout) :: carbon !! Soil carbon pools: active, slow, or passive, \f$(gC m^{2})$\f |
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| 243 | REAL(r_std), DIMENSION(npts,nvm,nbdl,ndoc,npool,nelements), INTENT(inout) :: DOC !! Dissolved Organic Carbon in soil |
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| 244 | !! The unit is given by m^2 of |
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| 245 | !! ground @tex $(gC m{-2} of ground)$ @endtex |
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| 246 | REAL(r_std), DIMENSION(npts,nvm,nparts,nelements), INTENT(inout) :: biomass !! Biomass @tex $(gC m^{-2})$ @endtex |
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| 247 | REAL(r_std), DIMENSION(npts,nvm,nelements), INTENT(inout):: interception_storage !! Storage of DOC and solube OC in canopy |
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| 248 | !! @tex $(gC.m^{-2})$ @endtex |
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| 249 | !! 0.4 Local variables |
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| 250 | REAL(r_std), SAVE, DIMENSION(ncarb) :: carbon_tau !! Residence time in carbon pools (years) |
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| 251 | !$OMP THREADPRIVATE(carbon_tau) |
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| 252 | REAL(r_std), DIMENSION(npts,ncarb,ncarb) :: frac_carb !! Flux fractions between carbon pools |
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| 253 | !! (second index=origin, third index=destination) |
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| 254 | !! (unitless, 0-1) |
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| 255 | REAL(r_std), DIMENSION(npts,ncarb,nelements,nbdl) :: fluxtot !! Total flux out of carbon pools \f$(gC m^{2})$\f |
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| 256 | REAL(r_std), DIMENSION(npts,nvm,nbdl,npool) :: fluxtot_DOC !! Total flux out of dissolved organic carbon pools \f$(gC m^{2}ground)$\f |
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| 257 | REAL(r_std), DIMENSION(npts,ncarb,nelements,nbdl) :: fluxtot_flood !! Total flux out of carbon pools \f$(gC m^{2})$\f |
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| 258 | REAL(r_std), DIMENSION(npts,nvm,nbdl,npool) :: fluxtot_DOC_flood!! Total flux out of dissolved organic carbon pools \f$(gC m^{2}ground\)$\f |
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| 259 | |
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| 260 | !! Add things for extrapolating passive SOC |
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| 261 | CHARACTER(LEN=30) :: var_name !! To store variables with xios |
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| 262 | CHARACTER(LEN=2) :: part_str !! To store variables with xios |
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| 263 | !!!! |
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| 264 | REAL(r_std), DIMENSION(npts,npool,ncarb,nelements,nbdl) :: flux !! Fluxes between carbon pools \f$(gC m^{2})$\f |
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| 265 | CHARACTER(LEN=7), DIMENSION(ncarb) :: carbon_str !! Name of the carbon pools for informative outputs (unitless) |
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| 266 | REAL(r_std), SAVE, DIMENSION(ncarb) :: priming_param !! parmater controlling the sensitvity of priming effect on each pools to the amount of LOM |
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| 267 | !$OMP THREADPRIVATE(priming_param) |
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| 268 | REAL(r_std), SAVE, DIMENSION(npool) :: DOC_tau !! Residence time of DOC (days) |
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| 269 | !$OMP THREADPRIVATE(DOC_tau) |
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| 270 | REAL(r_std), DIMENSION(npts,nvm,nbdl) :: litter_tot !! total litter (gC/m**2 of ground) |
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| 271 | REAL(r_std), DIMENSION(npts,nvm,nbdl) :: LOM !! total labile organic matter that could induce the decompostion rate |
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| 272 | !! (gC/m**2 of ground) |
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| 273 | INTEGER(i_std) :: k,kk,m,j,l,i,kkk !! Indices (unitless) |
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| 274 | REAL(r_std),DIMENSION(0:nbdl) :: z_soil !! Soil levels (m) |
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| 275 | REAL(r_std), DIMENSION(npts,nvm, nbdl,npool,nelements) :: DOC_RE !! Adsoprtion Desorption flux of DOC (mmol C/kg) |
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| 276 | REAL(r_std), DIMENSION(npts,nvm, nbdl,npool,nelements) :: DOC_FLUX !! DOC flux between layers in f$(gC m^{-2} day^{-1})$\f |
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| 277 | REAL(r_std), DIMENSION(npts,nvm, nbdl,npool,nelements) :: DOC_FLUX_DIFF !! DOC flux by diffusion between layers in f$(gC m^{-2} day^{-1})$\f |
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| 278 | REAL(r_std), DIMENSION(npts,nvm, nbdl,npool,nelements) :: DOC_FLUX_DIFF_old !! DOC flux by diffusion between layers in f$(gC m^{-2} day^{-1})$\f for storage |
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| 279 | REAL(r_std), DIMENSION(npts,nvm,npool,nelements) :: DOC_RUN !! DOC lost with runoff in f$(gC m^{-2} day^{-1})$\f |
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| 280 | REAL(r_std), DIMENSION(npts,nvm,npool,nelements) :: DOC_FLOOD !! DOC lost with flooding in f$(gC m^{-2} day^{-1})$\f |
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| 281 | REAL(r_std), DIMENSION(npts,nvm,npool,nelements) :: DOC_DRAIN !! DOC lost with drainage in f$(gC m^{-2} day^{-1})$\f |
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| 282 | REAL(r_std), DIMENSION(npts,nvm,nbdl,ndoc,npool,nelements) :: DOC_old !! Dissolved Organic Carbon in soil |
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| 283 | !! The unit is given by m^2 of |
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| 284 | !! ground @tex $(gC m{-2} of ground)$ @endtex variable used for storage |
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| 285 | REAL(r_std), DIMENSION(npts,nvm,nbdl,ndoc,npool,nelements) :: DOC_old2 !! Dissolved Organic Carbon in soil |
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| 286 | !! The unit is given by m^2 of |
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| 287 | !! ground @tex $(gC m{-2} of ground)$ @endtex variable used for storage |
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| 288 | REAL(r_std), DIMENSION(npts,nvm,nbdl,ndoc,npool,nelements) :: DOC_old_buffer !! Dissolved Organic Carbon in soil |
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| 289 | !! The unit is given by m^2 of |
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| 290 | !! ground @tex $(gC m{-2} of ground)$ @endtex variable used for storage |
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| 291 | |
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| 292 | REAL(r_std), DIMENSION(npts,ncarb,nvm,nbdl) :: carbon_old !! Soil carbon pools: active, slow, or passive, \f$(gC m^{2})$\f used for storage |
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| 293 | REAL(r_std), DIMENSION(npts,ncarb,nvm,nbdl) :: carbon_old_buffer!! Soil carbon pools: active, slow, or passive, \f$(gC m^{2})$\f used for storage |
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| 294 | REAL(r_std), DIMENSION(npts) :: Qmax !! Maximum adsorption capacity for DOC in the Langmuir equation (mg kg¿1) |
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| 295 | REAL(r_std), DIMENSION(npts,nbdl) :: Kd !! distribution coefficient between DOC adsorbed and DOC free (unitless [0-1]) |
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| 296 | REAL(r_std), DIMENSION(npts,nbdl) :: b !! desorption term of the Initial Mass (IM) isotherm (mmol C/kg) |
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| 297 | REAL(r_std), DIMENSION(npts,nbdl) :: IM !! sorption affinity of the Initial Mass (IM) isotherm (unitless) |
|---|
| 298 | |
|---|
| 299 | REAL(r_std), DIMENSION(npts) :: Dif_coef !! Diffusion coeficient used for bioturbation (m2 dt-1) |
|---|
| 300 | |
|---|
| 301 | REAL(r_std), DIMENSION(npts) :: Dif_DOC !! Diffusion coeficient used for DOC diffusion (m2 dt-1) |
|---|
| 302 | |
|---|
| 303 | REAL(r_std), DIMENSION(npts) :: CUE_coef !! Partition coefficient for DOC decomposed between CO2 and POC (unitless, 0-1) |
|---|
| 304 | |
|---|
| 305 | REAL(r_std), DIMENSION(npts,ncarb,nvm,nbdl) :: carbon_flux !! Soil carbon flux within pools towards the soil column\f$(gC m^{2} dt^{-1})$\f |
|---|
| 306 | REAL(r_std), DIMENSION(npts,ncarb,nvm,nbdl) :: carbon_flux_old !! Soil carbon flux within pools towards the soil column\f$(gC m^{2} dt^{-1})$\f |
|---|
| 307 | !! used for storage |
|---|
| 308 | REAL(r_std), DIMENSION(npts,nstm) :: soilwater_31mm !! Soil water content of the first x layers (m) |
|---|
| 309 | REAL(r_std), DIMENSION(npts) :: soilDOC_31mm !! Soil DOC content of the first x layers (m) |
|---|
| 310 | REAL(r_std), DIMENSION(npts) :: soilDOC_corr !! Soil DOC content of the first x layers (m) |
|---|
| 311 | REAL(r_std), DIMENSION(npts) :: flux_red !! Flux reduction in upper meter of the soil |
|---|
| 312 | REAL(r_std), DIMENSION(npts,nvm,nmbcomp,nelements) :: check_intern !! Contains the components of the internal |
|---|
| 313 | !! mass balance chech for this routine |
|---|
| 314 | !! @tex $(gC pixel^{-1} dt^{-1})$ @endtex |
|---|
| 315 | REAL(r_std), DIMENSION(npts,nvm,nelements) :: closure_intern !! Check closure of internal mass balance |
|---|
| 316 | |
|---|
| 317 | REAL(r_std), DIMENSION(npts,nvm,nelements) :: pool_start !! Start and end pool of this routine |
|---|
| 318 | !! @tex $(gC pixel^{-1} dt^{-1})$ @endtex |
|---|
| 319 | REAL(r_std), DIMENSION(npts,nvm,nelements) :: pool_end !! Start and end pool of this routine |
|---|
| 320 | !! @tex $(gC pixel^{-1} dt^{-1})$ @endtex |
|---|
| 321 | REAL(r_std), DIMENSION(npts,nvm,nelements) :: pool_end_after !! Start and end pool of this routine after mass balance correction |
|---|
| 322 | !! @tex $(gC pixel^{-1} dt^{-1})$ @endtex |
|---|
| 323 | REAL(r_std), DIMENSION(npts,nvm,nelements) :: wet_dep_ground !! total wet deposition of DOC onto the ground |
|---|
| 324 | REAL(r_std), DIMENSION(npts,nvm,nelements) :: wet_dep_flood !! total wet deposition of DOC onto the flooded |
|---|
| 325 | REAL(r_std), DIMENSION(npts) :: bio_frac !! total wet deposition of DOC onto the flooded |
|---|
| 326 | REAL(r_std), DIMENSION(npts) :: fastr_corr !! correction factor based on fast reservoir |
|---|
| 327 | REAL(r_std) :: lat_exp !! factor used to disable soil-water export of DOC |
|---|
| 328 | !_ ================================================================================================================================ |
|---|
| 329 | |
|---|
| 330 | !! bavard is the level of diagnostic information, 0 (none) to 4 (full) |
|---|
| 331 | IF (printlev>=3) WRITE(numout,*) 'Entering soilcarbon' |
|---|
| 332 | |
|---|
| 333 | !! 1. Initializations |
|---|
| 334 | ! clay(:) = 1.E-06 |
|---|
| 335 | !! 1.0 Calculation of soil moisture |
|---|
| 336 | IF (lat_exp_doc) THEN |
|---|
| 337 | lat_exp = un |
|---|
| 338 | ELSE |
|---|
| 339 | lat_exp = zero |
|---|
| 340 | ENDIF |
|---|
| 341 | |
|---|
| 342 | moist_soil(:,:) = zero |
|---|
| 343 | DO l = 1,nbdl |
|---|
| 344 | DO i = 1, nstm |
|---|
| 345 | moist_soil(:,l)= moist_soil(:,l) + soil_mc(:,l,i)*soiltile(:,i) |
|---|
| 346 | ENDDO |
|---|
| 347 | ENDDO |
|---|
| 348 | !! 1.1 soil levels |
|---|
| 349 | z_soil(0) = zero |
|---|
| 350 | z_soil(1:nbdl) = diaglev(1:nbdl) |
|---|
| 351 | |
|---|
| 352 | !! DOC flux reduction factor, effects of poor soils |
|---|
| 353 | flux_red(:) = flux_red_sro * (un - poor_soils(:)) + poor_soils(:) |
|---|
| 354 | |
|---|
| 355 | !! 1.2 TF-DOC: Initialize wet and dry deposition of DOC |
|---|
| 356 | DOC_precip2canopy(:,:,icarbon) = zero |
|---|
| 357 | DOC_precip2ground(:,:,icarbon) = zero |
|---|
| 358 | dry_dep_canopy(:,:,icarbon) = zero |
|---|
| 359 | bio_frac(:)=SUM(veget_max(:,2:13),DIM=2) |
|---|
| 360 | |
|---|
| 361 | IF (ok_TF_DOC) THEN |
|---|
| 362 | !! Calculate the DOC depoited onto the ground |
|---|
| 363 | !! TF Calculate thoughfall DOC |
|---|
| 364 | |
|---|
| 365 | !! TF.1 Flux of DOC with precipitation onto the ground and onto the canopy (interception storage) |
|---|
| 366 | DOC_precip2canopy(:,2:13,icarbon) = precip2canopy(:,2:13) * conc_DOC_rain * 1e-3 |
|---|
| 367 | DOC_precip2ground(:,2:13,icarbon) = precip2ground(:,2:13) * conc_DOC_rain * 1e-3 |
|---|
| 368 | !! TF.2 Daily contirubitoon of dry deposition and exsuadtes and feces |
|---|
| 369 | |
|---|
| 370 | DO j = 2,9! Loop over PFTs composed of trees |
|---|
| 371 | DO i = 1, npts! Loop over # of pixels |
|---|
| 372 | IF (veget_max(i,j) .GT. 0) THEN |
|---|
| 373 | dry_dep_canopy(i,j,icarbon) = DOC_incr_per_LEAF_M2 * dt * biomass(i,j,ileaf,icarbon) * veget_max(i,j) |
|---|
| 374 | !! So far, this is only the parametrisation for PFT=2 |
|---|
| 375 | !! sa the rate is per day, we have to multiply by dt |
|---|
| 376 | ELSE |
|---|
| 377 | dry_dep_canopy(i,j,icarbon) = zero |
|---|
| 378 | ENDIF |
|---|
| 379 | ENDDO ! Loop over # of pixels |
|---|
| 380 | ENDDO ! # End Loop over # of PFTs |
|---|
| 381 | ENDIF !(ok_TF_DOC) |
|---|
| 382 | |
|---|
| 383 | !! 1.4 Initialize check for mass balance closure |
|---|
| 384 | ! The mass balance is calculated at the end of this routine |
|---|
| 385 | ! in section 14. Initial biomass and harvest pool and all other |
|---|
| 386 | ! relevant pools were set to zero before calling this routine. |
|---|
| 387 | pool_start(:,:,:) = zero |
|---|
| 388 | IF (ld_doc) THEN |
|---|
| 389 | !Starting carbon pool |
|---|
| 390 | DO m = 1, nvm |
|---|
| 391 | DO i = 1,ncarb |
|---|
| 392 | DO l = 1, nbdl |
|---|
| 393 | pool_start(:,m,icarbon) = pool_start(:,m,icarbon) + & |
|---|
| 394 | ( carbon(:,i,m,l) ) * veget_max(:,m) |
|---|
| 395 | ENDDO |
|---|
| 396 | ENDDO |
|---|
| 397 | pool_start(:,m,icarbon) = pool_start(:,m,icarbon) + interception_storage(:,m,icarbon) |
|---|
| 398 | ENDDO |
|---|
| 399 | |
|---|
| 400 | !Starting DOC pool |
|---|
| 401 | DO m = 1, nvm |
|---|
| 402 | DO i = 1,npool |
|---|
| 403 | DO l = 1, nbdl |
|---|
| 404 | DO j = 1, ndoc |
|---|
| 405 | pool_start(:,m,icarbon) = pool_start(:,m,icarbon) + & |
|---|
| 406 | ( DOC(:,m,l,j,i,icarbon)) * veget_max(:,m) |
|---|
| 407 | ENDDO |
|---|
| 408 | ENDDO |
|---|
| 409 | ENDDO |
|---|
| 410 | ENDDO |
|---|
| 411 | |
|---|
| 412 | |
|---|
| 413 | !Starting litter below pool |
|---|
| 414 | DO m = 1,nvm |
|---|
| 415 | DO l = 1, nbdl |
|---|
| 416 | pool_start(:,m,icarbon) = pool_start(:,m,icarbon) + & |
|---|
| 417 | (soilcarbon_input(:,m,l,imetbel,icarbon)+soilcarbon_input(:,m,l,istrbel,icarbon)+ & |
|---|
| 418 | soilcarbon_input(:,m,l,imetabo,icarbon)+soilcarbon_input(:,m,l,istrabo,icarbon)) * & |
|---|
| 419 | veget_max(:,m) * dt |
|---|
| 420 | ENDDO |
|---|
| 421 | ENDDO |
|---|
| 422 | |
|---|
| 423 | !Starting litter above pool |
|---|
| 424 | DO m = 1,nvm |
|---|
| 425 | WHERE (veget_max(:,m) .GT. zero) |
|---|
| 426 | pool_start(:,m,icarbon) = pool_start(:,m,icarbon) + & |
|---|
| 427 | (DOC_to_topsoil(:,idocl) + DOC_to_subsoil(:,idocl) + DOC_to_topsoil(:,idocr) + DOC_to_subsoil(:,idocr) + & |
|---|
| 428 | floodcarbon_input(:,m,iact,icarbon) + floodcarbon_input(:,m,islo,icarbon))*dt*veget_max(:,m) + & |
|---|
| 429 | DOC_precip2canopy(:,m,icarbon) + DOC_precip2ground(:,m,icarbon) + dry_dep_canopy(:,m,icarbon) |
|---|
| 430 | ELSEWHERE |
|---|
| 431 | pool_start(:,m,icarbon) = pool_start(:,m,icarbon) |
|---|
| 432 | ENDWHERE |
|---|
| 433 | ENDDO |
|---|
| 434 | ENDIF |
|---|
| 435 | |
|---|
| 436 | !! 1.2 Get soil "constants" |
|---|
| 437 | !! 1.2.1 Flux fractions between carbon pools: depend on clay content, recalculated each time |
|---|
| 438 | ! From active pool: depends on clay content |
|---|
| 439 | frac_carb(:,iactive,iactive) = zero |
|---|
| 440 | frac_carb(:,iactive,ipassive) = frac_carb_ap /(un - metabolic_ref_frac + active_to_pass_clay_frac*clay(:)) |
|---|
| 441 | frac_carb(:,iactive,islow) = un - frac_carb(:,iactive,ipassive) |
|---|
| 442 | ! 1.2.1.2 from slow pool |
|---|
| 443 | frac_carb(:,islow,islow) = zero |
|---|
| 444 | frac_carb(:,islow,iactive) = frac_carb_sa |
|---|
| 445 | frac_carb(:,islow,ipassive) = un - frac_carb(:,islow,iactive) |
|---|
| 446 | ! From passive pool |
|---|
| 447 | frac_carb(:,ipassive,ipassive) = zero |
|---|
| 448 | frac_carb(:,ipassive,iactive) = frac_carb_pa |
|---|
| 449 | frac_carb(:,ipassive,islow) = un - frac_carb(:,ipassive,iactive) |
|---|
| 450 | |
|---|
| 451 | ! 1.2.1.3 Initialization |
|---|
| 452 | carbon_flux(:,:,:,:) = zero |
|---|
| 453 | carbon_flux_old(:,:,:,:) = zero |
|---|
| 454 | IF ( firstcall ) THEN |
|---|
| 455 | |
|---|
| 456 | !! 1.2.2 Residence times in carbon pools (in year converted in days) |
|---|
| 457 | carbon_tau(iactive) = carbon_tau_iactive * one_year !residence times when SOM decomposition is function of litter coming from from optimization with the theoretical model SOM-FOM-DEP |
|---|
| 458 | carbon_tau(islow) = carbon_tau_islow * one_year ! See Guenet et al., (In prep) |
|---|
| 459 | carbon_tau(ipassive) = carbon_tau_ipassive * one_year |
|---|
| 460 | |
|---|
| 461 | priming_param(iactive)=priming_param_iactive !Priming parameter for mineralization obtained from optimization of SOM-FOM-DEP see Guenet et al., (In prep) |
|---|
| 462 | priming_param(islow)=priming_param_islow |
|---|
| 463 | priming_param(ipassive)=priming_param_ipassive |
|---|
| 464 | |
|---|
| 465 | ! The values of DOC_tau are coming from Kalbitz et al 2003 Geoderma |
|---|
| 466 | ! (already in days) |
|---|
| 467 | DOC_tau(imetabo) = DOC_tau_labile |
|---|
| 468 | DOC_tau(istrabo) = DOC_tau_labile |
|---|
| 469 | DOC_tau(imetbel) = DOC_tau_labile |
|---|
| 470 | DOC_tau(istrbel) = DOC_tau_labile |
|---|
| 471 | DOC_tau(iact) = DOC_tau_labile |
|---|
| 472 | DOC_tau(islo) = DOC_tau_stable |
|---|
| 473 | DOC_tau(ipas) = DOC_tau_stable |
|---|
| 474 | |
|---|
| 475 | !! 1.3 soil levels |
|---|
| 476 | !! 1.4 Messages : display the residence times |
|---|
| 477 | carbon_str(iactive) = 'active' |
|---|
| 478 | carbon_str(islow) = 'slow' |
|---|
| 479 | carbon_str(ipassive) = 'passive' |
|---|
| 480 | |
|---|
| 481 | WRITE(numout,*) 'soilcarbon:' |
|---|
| 482 | |
|---|
| 483 | WRITE(numout,*) ' > minimal carbon residence time in carbon pools (d):' |
|---|
| 484 | DO k = 1, ncarb ! Loop over carbon pools |
|---|
| 485 | WRITE(numout,*) '(1, ::carbon_str(k)):',carbon_str(k),' : (1, ::carbon_tau(k)):',carbon_tau(k) |
|---|
| 486 | ENDDO |
|---|
| 487 | |
|---|
| 488 | WRITE(numout,*) ' > flux fractions between carbon pools: depend on clay content' |
|---|
| 489 | firstcall = .FALSE. |
|---|
| 490 | |
|---|
| 491 | ENDIF |
|---|
| 492 | |
|---|
| 493 | !! 1.5 Initialization |
|---|
| 494 | !! 1.5.1 Initialization of parameters |
|---|
| 495 | Dif_coef(:) = (Dif/one_year)*dt |
|---|
| 496 | Dif_DOC(:)=D_DOC*dt !We divided by one_year |
|---|
| 497 | !because the unit of the Dif |
|---|
| 498 | !parameter is m2 yr-1 and the time stept of the model |
|---|
| 499 | !is dt (1/48, by default, i.e. the fraction |
|---|
| 500 | !of 30 min expressed in days) |
|---|
| 501 | CUE_coef(:)=CUE |
|---|
| 502 | |
|---|
| 503 | !! 1.5.2 Set soil respiration and DOC fluxes to zero |
|---|
| 504 | resp_hetero_soil(:,:) = zero |
|---|
| 505 | resp_flood_soil(:,:) = zero |
|---|
| 506 | DOC_EXP(:,:,:,:,:) = zero |
|---|
| 507 | DOC_RE(:,:,:,:,:) = zero |
|---|
| 508 | DOC_FLUX(:,:,:,:,:) = zero |
|---|
| 509 | DOC_FLUX_DIFF(:,:,:,:,:) = zero |
|---|
| 510 | DOC_FLUX_DIFF_old(:,:,:,:,:) = zero |
|---|
| 511 | DOC_RUN(:,:,:,:)= zero |
|---|
| 512 | DOC_FLOOD(:,:,:,:)= zero |
|---|
| 513 | DOC_DRAIN(:,:,:,:)= zero |
|---|
| 514 | fluxtot(:,:,:,:)= zero |
|---|
| 515 | fluxtot_DOC(:,:,:,:) = zero |
|---|
| 516 | fluxtot_flood(:,:,:,:) = zero |
|---|
| 517 | fluxtot_DOC_flood(:,:,:,:) = zero |
|---|
| 518 | litter_tot(:,:,:) = zero |
|---|
| 519 | DOC_canopy2ground(:,:,:) = zero |
|---|
| 520 | wet_dep_flood(:,:,:) = zero |
|---|
| 521 | wet_dep_ground(:,:,:) = zero |
|---|
| 522 | LOM(:,:,:)= zero |
|---|
| 523 | |
|---|
| 524 | ! bulk_density must be in kg m-3 and is generally given in g cm-3 |
|---|
| 525 | WHERE (bulk_dens(:) .LT. 500) |
|---|
| 526 | bulk_dens(:) = bulk_dens(:)*1e3 |
|---|
| 527 | ENDWHERE |
|---|
| 528 | |
|---|
| 529 | !!1.6 Calculating water content of the first 5 layers |
|---|
| 530 | soilwater_31mm(:,:)= zero |
|---|
| 531 | soilwater_31mm(:,:)= soilwater_31mm(:,:) + (z_soil(1) * soil_mc(:,1,:)) |
|---|
| 532 | IF (sro_bottom .GT. 1) THEN |
|---|
| 533 | DO l=2, sro_bottom |
|---|
| 534 | soilwater_31mm(:,:)= soilwater_31mm(:,:) + ((z_soil(l)-z_soil(l-1)) * soil_mc(:,l,:)) |
|---|
| 535 | ENDDO |
|---|
| 536 | ENDIF |
|---|
| 537 | |
|---|
| 538 | !! 2. Fluxes between carbon reservoirs, and to the atmosphere (respiration) \n |
|---|
| 539 | !! 2.1 calculation of TF fluxes |
|---|
| 540 | !! Calculation of TF-Fluxes |
|---|
| 541 | |
|---|
| 542 | !! TF.3 Calculate the flow to the ground |
|---|
| 543 | |
|---|
| 544 | !! Calculate max possible DOC flux, assuming a maximum concentration |
|---|
| 545 | DO j = 2,nvm! Loop over # of PFTs |
|---|
| 546 | DO i = 1, npts! Loop over # of pixels |
|---|
| 547 | IF (veget_max(i,j) > zero) THEN |
|---|
| 548 | DOC_canopy2ground(i,j,icarbon) = min(canopy2ground(i,j)*conc_DOC_max * 1e-3, & |
|---|
| 549 | & interception_storage(i,j,icarbon)) |
|---|
| 550 | ELSE |
|---|
| 551 | DOC_canopy2ground(i,j,icarbon) = zero |
|---|
| 552 | ENDIF |
|---|
| 553 | ENDDO ! Loop over # of pixels |
|---|
| 554 | ENDDO ! # End Loop over # of PFTs |
|---|
| 555 | |
|---|
| 556 | DO j = 1,nvm! Loop over # of PFTs |
|---|
| 557 | wet_dep_flood(:,j,icarbon) = (DOC_precip2ground(:,j,icarbon) + DOC_canopy2ground(:,j,icarbon)) * flood_frac(:) |
|---|
| 558 | wet_dep_ground(:,j,icarbon) = (DOC_precip2ground(:,j,icarbon) + DOC_canopy2ground(:,j,icarbon)) * (un-flood_frac(:)) |
|---|
| 559 | ENDDO |
|---|
| 560 | |
|---|
| 561 | IF (.NOT. lat_exp_doc) THEN |
|---|
| 562 | wet_dep_ground = wet_dep_ground + wet_dep_flood |
|---|
| 563 | wet_dep_flood = zero |
|---|
| 564 | ELSE |
|---|
| 565 | !Do nothing |
|---|
| 566 | ENDIF |
|---|
| 567 | |
|---|
| 568 | !! TF.4 Update the canopy storage of soluble OC and DOC |
|---|
| 569 | |
|---|
| 570 | DO j = 2,nvm! Loop over # of PFTs |
|---|
| 571 | DO i = 1, npts! Loop over # of pixels |
|---|
| 572 | IF (veget_max(i,j) > zero) THEN |
|---|
| 573 | interception_storage(i,j,icarbon) = interception_storage(i,j,icarbon) + dry_dep_canopy(i,j,icarbon) + & |
|---|
| 574 | & DOC_precip2canopy(i,j,icarbon) - DOC_canopy2ground(i,j,icarbon) |
|---|
| 575 | ELSE |
|---|
| 576 | interception_storage(i,j,icarbon) = zero |
|---|
| 577 | ENDIF |
|---|
| 578 | ENDDO ! Loop over # of pixels |
|---|
| 579 | ENDDO ! # End Loop over # of PFTs |
|---|
| 580 | |
|---|
| 581 | !! TF.5 Calculate the fraction that is infiltrating into the soil |
|---|
| 582 | DOC_infil = zero |
|---|
| 583 | DOC_noinfil = zero |
|---|
| 584 | |
|---|
| 585 | !! 2.2 Input from litter to DOC and from reinflitration in floodplains |
|---|
| 586 | !! For the variables DOC_to_topsoil and DOC_to_subsoil we multiplied by |
|---|
| 587 | !veget_max because it is not defined per PFT and therefore we redistribute |
|---|
| 588 | !it following veget_max. Moreover we assume the all the DOC coming from |
|---|
| 589 | !floodplains reinfiltration is going to DOC coming from the active pool. |
|---|
| 590 | DO m = 2, nvm |
|---|
| 591 | DO l = 1,nbdl |
|---|
| 592 | |
|---|
| 593 | DOC(:,m,l,ifree,imetabo,icarbon) = DOC(:,m,l,ifree,imetabo,icarbon) + soilcarbon_input(:,m,l,imetabo,icarbon)*dt |
|---|
| 594 | DOC(:,m,l,ifree,istrabo,icarbon) = DOC(:,m,l,ifree,istrabo,icarbon) + soilcarbon_input(:,m,l,istrabo,icarbon)*dt |
|---|
| 595 | DOC(:,m,l,ifree,imetbel,icarbon) = DOC(:,m,l,ifree,imetbel,icarbon) + soilcarbon_input(:,m,l,imetbel,icarbon)*dt |
|---|
| 596 | DOC(:,m,l,ifree,istrbel,icarbon) = DOC(:,m,l,ifree,istrbel,icarbon) + soilcarbon_input(:,m,l,istrbel,icarbon)*dt |
|---|
| 597 | |
|---|
| 598 | ENDDO |
|---|
| 599 | WHERE (veget_max(:,m) .GT. zero) |
|---|
| 600 | DOC(:,m,1,ifree,iact,icarbon) = DOC(:,m,1,ifree,iact,icarbon) + DOC_to_topsoil(:,idocl)*dt/bio_frac(:) & |
|---|
| 601 | + wet_dep_ground(:,m,icarbon) * undemi/veget_max(:,m) |
|---|
| 602 | DOC(:,m,nbdl,ifree,iact,icarbon) = DOC(:,m,nbdl,ifree,iact,icarbon) + DOC_to_subsoil(:,idocl)*dt/bio_frac(:) |
|---|
| 603 | DOC(:,m,1,ifree,islo,icarbon) = DOC(:,m,1,ifree,islo,icarbon) + DOC_to_topsoil(:,idocr)*dt/bio_frac(:) & |
|---|
| 604 | + wet_dep_ground(:,m,icarbon) * undemi/veget_max(:,m) |
|---|
| 605 | DOC(:,m,nbdl,ifree,islo,icarbon) = DOC(:,m,nbdl,ifree,islo,icarbon) + DOC_to_subsoil(:,idocr)*dt/bio_frac(:) |
|---|
| 606 | ELSEWHERE |
|---|
| 607 | DOC(:,m,1,ifree,iact,icarbon) = DOC(:,m,1,ifree,iact,icarbon) |
|---|
| 608 | DOC(:,m,nbdl,ifree,iact,icarbon) = DOC(:,m,nbdl,ifree,iact,icarbon) |
|---|
| 609 | ENDWHERE |
|---|
| 610 | ENDDO |
|---|
| 611 | |
|---|
| 612 | !! 2.3. Calculate fluxes |
|---|
| 613 | DO m = 2,nvm |
|---|
| 614 | !calculate total litter available |
|---|
| 615 | litter_tot(:,m,1)=litter_above(:,imetabolic,m,icarbon)+litter_above(:,istructural,m,icarbon) |
|---|
| 616 | |
|---|
| 617 | DO l = 1, nbdl |
|---|
| 618 | litter_tot(:,m,l)=litter_tot(:,m,l) + litter_below(:,imetabolic,m,l,icarbon)+litter_below(:,istructural,m,l,icarbon) |
|---|
| 619 | ENDDO |
|---|
| 620 | ENDDO |
|---|
| 621 | |
|---|
| 622 | DO m = 1,nvm ! Loop over #Â PFTs |
|---|
| 623 | |
|---|
| 624 | |
|---|
| 625 | !! 2.3.1. Flux out of pools |
|---|
| 626 | |
|---|
| 627 | DO k = 1, ncarb ! Loop over carbon pools from which the flux comes |
|---|
| 628 | |
|---|
| 629 | DO l = 1, nbdl !Loop over soil layers |
|---|
| 630 | |
|---|
| 631 | ! Determine total flux out of pool |
|---|
| 632 | ! S.L. Piao 2006/05/05 - for crop multiply tillage factor of decomposition |
|---|
| 633 | ! Not crop |
|---|
| 634 | |
|---|
| 635 | |
|---|
| 636 | IF (k == iactive) THEN |
|---|
| 637 | LOM(:,m,l) = litter_tot(:,m,l) + DOC(:,m,l,ifree,imetabo,icarbon) + DOC(:,m,l,ifree,istrabo,icarbon) + DOC(:,m,l,ifree,imetbel,icarbon) + DOC(:,m,l,ifree,istrbel,icarbon) |
|---|
| 638 | ELSEIF (k == islow) THEN |
|---|
| 639 | LOM(:,m,l) = litter_tot(:,m,l) + carbon(:,iactive,m,l) + DOC(:,m,l,ifree,iact,icarbon) + & |
|---|
| 640 | DOC(:,m,l,ifree,imetabo,icarbon) + DOC(:,m,l,ifree,istrabo,icarbon) + DOC(:,m,l,ifree,imetbel,icarbon) + DOC(:,m,l,ifree,istrbel,icarbon) |
|---|
| 641 | ELSEIF (k == ipassive) THEN |
|---|
| 642 | LOM(:,m,l) = litter_tot(:,m,l) + carbon(:,iactive,m,l) + carbon(:,islow,m,l) + DOC(:,m,l,ifree,iact,icarbon) + DOC(:,m,l,ifree,islo,icarbon) + & |
|---|
| 643 | DOC(:,m,l,ifree,imetabo,icarbon) + DOC(:,m,l,ifree,istrabo,icarbon) + DOC(:,m,l,ifree,imetbel,icarbon) + DOC(:,m,l,ifree,istrbel,icarbon) |
|---|
| 644 | ELSE |
|---|
| 645 | WRITE(numout,*) "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" |
|---|
| 646 | WRITE(numout,*) "BE CAREFUL SOMETHING STRANGE HAPPENS" |
|---|
| 647 | WRITE(numout,*) "IN STOMATE_SOILCARBON FOR LOM CALCULATION" |
|---|
| 648 | WRITE(numout,*) "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" |
|---|
| 649 | |
|---|
| 650 | ENDIF |
|---|
| 651 | |
|---|
| 652 | WHERE ((soil_mc(:,l,pref_soil_veg(m)) .GT. zero) .AND. (natural(m))) |
|---|
| 653 | fluxtot(:,k,icarbon,l) =(dt/(carbon_tau(k)*(un+poor_soils(:))))*(un-exp(-priming_param(k)*LOM(:,m,l))) * carbon(:,k,m,l) * & |
|---|
| 654 | control_moist_soil(:,l,m) * control_temp_soil(:,l,k+4) * (un-flood_frac(:)) |
|---|
| 655 | fluxtot_flood(:,k,icarbon,l) =(dt/(carbon_tau(k)*(un+poor_soils(:))))*(un-exp(-priming_param(k)*LOM(:,m,l))) * carbon(:,k,m,l) * & |
|---|
| 656 | control_moist_soil(:,l,m) * control_temp_soil(:,l,k+4) * flood_frac(:) * un/trois |
|---|
| 657 | ! C3 crop |
|---|
| 658 | ELSEWHERE ((soil_mc(:,l,pref_soil_veg(m)) .GT. zero) .AND.( (.NOT. natural(m)) .AND. (.NOT. is_c4(m)) )) |
|---|
| 659 | fluxtot(:,k,icarbon,l) =(dt/(carbon_tau(k)*(un+poor_soils(:))))*(un-exp(-priming_param(k)*LOM(:,m,l))) * carbon(:,k,m,l) * & |
|---|
| 660 | control_moist_soil(:,l,m) * control_temp_soil(:,l,k+4) * flux_tot_coeff(1) * (un-flood_frac(:)) |
|---|
| 661 | fluxtot_flood(:,k,icarbon,l) =(dt/(carbon_tau(k)*(un+poor_soils(:))))*(un-exp(-priming_param(k)*LOM(:,m,l))) * carbon(:,k,m,l) * & |
|---|
| 662 | control_moist_soil(:,l,m) * control_temp_soil(:,l,k+4) * flux_tot_coeff(1) * flood_frac(:) * un/trois |
|---|
| 663 | ! C4 crop |
|---|
| 664 | ELSEWHERE ((soil_mc(:,l,pref_soil_veg(m)) .GT. zero) .AND.( (.NOT. natural(m)) .AND. (is_c4(m)) )) |
|---|
| 665 | fluxtot(:,k,icarbon,l) =(dt/(carbon_tau(k)*(un+poor_soils(:))))*(un-exp(-priming_param(k)*LOM(:,m,l))) * carbon(:,k,m,l) * & |
|---|
| 666 | control_moist_soil(:,l,m) * control_temp_soil(:,l,k+4) * flux_tot_coeff(2) * (un-flood_frac(:)) |
|---|
| 667 | fluxtot_flood(:,k,icarbon,l) =(dt/(carbon_tau(k)*(un+poor_soils(:))))*(un-exp(-priming_param(k)*LOM(:,m,l))) * carbon(:,k,m,l) * & |
|---|
| 668 | control_moist_soil(:,l,m) * control_temp_soil(:,l,k+4) * flux_tot_coeff(2) * flood_frac(:) * un/trois |
|---|
| 669 | ELSEWHERE |
|---|
| 670 | fluxtot(:,k,icarbon,l) = zero |
|---|
| 671 | fluxtot_flood(:,k,icarbon,l) = zero |
|---|
| 672 | ENDWHERE |
|---|
| 673 | |
|---|
| 674 | ! END - S.L. Piao 2006/05/05 - for crop multiply tillage factor of decomposition |
|---|
| 675 | |
|---|
| 676 | ! Carbon flux from active pools depends on clay content |
|---|
| 677 | IF ( k .EQ. iactive ) THEN |
|---|
| 678 | fluxtot(:,k,icarbon,l) = fluxtot(:,k,icarbon,l) * ( un - flux_tot_coeff(3) * clay(:) ) |
|---|
| 679 | fluxtot_flood(:,k,icarbon,l) = fluxtot_flood(:,k,icarbon,l) * ( un - flux_tot_coeff(3) * clay(:) ) |
|---|
| 680 | ENDIF |
|---|
| 681 | ENDDO ! End of loop over soil layers |
|---|
| 682 | |
|---|
| 683 | ENDDO ! End of loop over carbon pools |
|---|
| 684 | |
|---|
| 685 | IF (.NOT. lat_exp_doc) THEN |
|---|
| 686 | fluxtot = fluxtot + fluxtot_flood |
|---|
| 687 | fluxtot_flood = zero |
|---|
| 688 | ELSE |
|---|
| 689 | !do nothing |
|---|
| 690 | ENDIF |
|---|
| 691 | |
|---|
| 692 | !! 2.3.2 respiration |
|---|
| 693 | !BE CAREFUL: Here resp_hetero_soil is divided by dt to have a value which corresponds to |
|---|
| 694 | ! the sechiba time step but then in stomate.f90 resp_hetero_soil is multiplied by dt. |
|---|
| 695 | ! Perhaps it could be simplified. Moreover, we must totally adapt the routines to the dtradia/one_day |
|---|
| 696 | ! time step and avoid some constructions that could create bug during future developments. |
|---|
| 697 | ! |
|---|
| 698 | DO l = 1,nbdl !Loop over soil layers |
|---|
| 699 | resp_hetero_soil(:,m) = resp_hetero_soil(:,m)+& |
|---|
| 700 | ( (un-CUE_coef(:)) * fluxtot(:,iactive,icarbon,l) + & |
|---|
| 701 | (un-CUE_coef(:)) * fluxtot(:,islow,icarbon,l) + & |
|---|
| 702 | (un-CUE_coef(:))* fluxtot(:,ipassive,icarbon,l) ) / dt |
|---|
| 703 | resp_flood_soil(:,m) = resp_flood_soil(:,m)+& |
|---|
| 704 | ( (un-CUE_coef(:)) * fluxtot_flood(:,iactive,icarbon,l) + & |
|---|
| 705 | (un-CUE_coef(:)) * fluxtot_flood(:,islow,icarbon,l) + & |
|---|
| 706 | (un-CUE_coef(:))* fluxtot_flood(:,ipassive,icarbon,l) ) / dt |
|---|
| 707 | ENDDO !End loop over soil layers |
|---|
| 708 | |
|---|
| 709 | !! 2.3.3 DOC calculation |
|---|
| 710 | !! 2.3.3.1 DOC decomposition |
|---|
| 711 | ! In the Kalbitz et al., 2003 Geoderma as well |
|---|
| 712 | ! as in Qualls and Haines 1992 SSAJ |
|---|
| 713 | ! the equation are defined with exponential but for the time |
|---|
| 714 | ! step we used we can approximate the values with 1st order kinetics. |
|---|
| 715 | |
|---|
| 716 | DO j = 1,npool !Loop over pools |
|---|
| 717 | DO l = 1,nbdl !Loop over soil layers |
|---|
| 718 | WHERE (soil_mc(:,l,pref_soil_veg(m)) .GT. zero) |
|---|
| 719 | fluxtot_DOC(:,m,l,j) = (dt/(DOC_tau(j)*(un+poor_soils(:))))* (un - flood_frac(:)) * & |
|---|
| 720 | DOC(:,m,l,ifree,j,icarbon)*control_temp_soil(:,l,npool+j) |
|---|
| 721 | fluxtot_DOC_flood(:,m,l,j) = (dt/(DOC_tau(j)*(un+poor_soils(:))))* flood_frac(:) * un/trois * & |
|---|
| 722 | DOC(:,m,l,ifree,j,icarbon)*control_temp_soil(:,l,npool+j) |
|---|
| 723 | ELSEWHERE |
|---|
| 724 | fluxtot_DOC(:,m,l,j) = zero |
|---|
| 725 | fluxtot_DOC_flood(:,m,l,j) = zero |
|---|
| 726 | ENDWHERE |
|---|
| 727 | |
|---|
| 728 | resp_hetero_soil(:,m) = resp_hetero_soil(:,m)+& |
|---|
| 729 | (un-CUE_coef(:))*fluxtot_DOC(:,m,l,j)/dt |
|---|
| 730 | |
|---|
| 731 | resp_flood_soil(:,m) = resp_flood_soil(:,m)+& |
|---|
| 732 | (un-CUE_coef(:))*fluxtot_DOC_flood(:,m,l,j)/dt |
|---|
| 733 | |
|---|
| 734 | ENDDO !End loop over soil layers! |
|---|
| 735 | ENDDO !End loop over soil pool! |
|---|
| 736 | |
|---|
| 737 | !! 2.3.4 Pools update |
|---|
| 738 | !! 2.3.4.1 For POC |
|---|
| 739 | DO l= 1, nbdl ! Loop over soil layers |
|---|
| 740 | |
|---|
| 741 | carbon(:,iactive,m,l) = carbon(:,iactive,m,l)+ & |
|---|
| 742 | frac_carb(:,ipassive,iactive)*(CUE_coef(:))*fluxtot_DOC(:,m,l,ipas) + & |
|---|
| 743 | frac_carb(:,islow,iactive)*(CUE_coef(:))*fluxtot_DOC(:,m,l,islo) + & |
|---|
| 744 | (CUE_coef(:))*fluxtot_DOC(:,m,l,imetbel) + & |
|---|
| 745 | (CUE_coef(:))*fluxtot_DOC(:,m,l,istrbel) * (un - lignin_struc_below(:,m,l)) + & |
|---|
| 746 | (CUE_coef(:))*fluxtot_DOC(:,m,l,imetabo) + & |
|---|
| 747 | (CUE_coef(:))*fluxtot_DOC(:,m,l,istrabo) * (un - lignin_struc_above(:,m)) + & |
|---|
| 748 | frac_carb(:,ipassive,iactive)*(CUE_coef(:))*fluxtot_DOC_flood(:,m,l,ipas) + & |
|---|
| 749 | frac_carb(:,islow,iactive)*(CUE_coef(:))*fluxtot_DOC_flood(:,m,l,islo) + & |
|---|
| 750 | (CUE_coef(:))*fluxtot_DOC_flood(:,m,l,imetbel) + & |
|---|
| 751 | (CUE_coef(:))*fluxtot_DOC_flood(:,m,l,istrbel) * (un - lignin_struc_below(:,m,l)) + & |
|---|
| 752 | (CUE_coef(:))*fluxtot_DOC_flood(:,m,l,imetabo) + & |
|---|
| 753 | (CUE_coef(:))*fluxtot_DOC_flood(:,m,l,istrabo) * (un - lignin_struc_above(:,m)) |
|---|
| 754 | |
|---|
| 755 | carbon(:,islow,m,l) = carbon(:,islow,m,l)+ & |
|---|
| 756 | frac_carb(:,ipassive,islow)*(CUE_coef(:))*fluxtot_DOC(:,m,l,ipas) + & |
|---|
| 757 | frac_carb(:,iactive,islow)*(CUE_coef(:))*fluxtot_DOC(:,m,l,iact) + & |
|---|
| 758 | (CUE_coef(:))*fluxtot_DOC(:,m,l,istrbel) *lignin_struc_below(:,m,l) + & |
|---|
| 759 | (CUE_coef(:))*fluxtot_DOC(:,m,l,istrabo) *lignin_struc_above(:,m) + & |
|---|
| 760 | frac_carb(:,ipassive,islow)*(CUE_coef(:))*fluxtot_DOC_flood(:,m,l,ipas) + & |
|---|
| 761 | frac_carb(:,iactive,islow)*(CUE_coef(:))*fluxtot_DOC_flood(:,m,l,iact) + & |
|---|
| 762 | (CUE_coef(:))*fluxtot_DOC_flood(:,m,l,istrbel) *lignin_struc_below(:,m,l) + & |
|---|
| 763 | (CUE_coef(:))*fluxtot_DOC_flood(:,m,l,istrabo) *lignin_struc_above(:,m) |
|---|
| 764 | |
|---|
| 765 | carbon(:,ipassive,m,l) = carbon(:,ipassive,m,l)+ & |
|---|
| 766 | frac_carb(:,iactive,ipassive)*(CUE_coef(:))*fluxtot_DOC(:,m,l,iact) + & |
|---|
| 767 | frac_carb(:,islow,ipassive)*(CUE_coef(:))*fluxtot_DOC(:,m,l,islo) + & |
|---|
| 768 | frac_carb(:,iactive,ipassive)*(CUE_coef(:))*fluxtot_DOC_flood(:,m,l,iact) + & |
|---|
| 769 | frac_carb(:,islow,ipassive)*(CUE_coef(:))*fluxtot_DOC_flood(:,m,l,islo) |
|---|
| 770 | |
|---|
| 771 | ENDDO ! End loop over soil layers |
|---|
| 772 | |
|---|
| 773 | DO k = 1, ncarb ! Loop over carbon pools from which the flux comes |
|---|
| 774 | DO l = 1, nbdl !Loop over soil layers |
|---|
| 775 | |
|---|
| 776 | carbon(:,k,m,l) = carbon(:,k,m,l) - fluxtot(:,k,icarbon,l) - fluxtot_flood(:,k,icarbon,l) |
|---|
| 777 | |
|---|
| 778 | ENDDO ! End of loop over soil layers |
|---|
| 779 | ENDDO ! End of loop over carbon pools |
|---|
| 780 | |
|---|
| 781 | !! 2.3.4.2 For DOC |
|---|
| 782 | DO l = 1,nbdl !Loop over soil layers |
|---|
| 783 | DO kk = 1,nelements !Loop over elements |
|---|
| 784 | IF (l .GT. sro_bottom) THEN |
|---|
| 785 | !For Active pool |
|---|
| 786 | DOC(:,m,l,ifree,iact,kk) = DOC(:,m,l,ifree,iact,kk) + (CUE_coef(:)) * fluxtot(:,iactive,kk,l) + & |
|---|
| 787 | (CUE_coef(:)) * fluxtot_flood(:,iactive,kk,l) |
|---|
| 788 | |
|---|
| 789 | !For Slow pool |
|---|
| 790 | DOC(:,m,l,ifree,islo,kk) = DOC(:,m,l,ifree,islo,kk) + (CUE_coef(:)) * fluxtot(:,islow,kk,l) + & |
|---|
| 791 | (CUE_coef(:)) * fluxtot_flood(:,islow,kk,l) |
|---|
| 792 | |
|---|
| 793 | !For Passive pool |
|---|
| 794 | DOC(:,m,l,ifree,ipas,kk) = DOC(:,m,l,ifree,ipas,kk) + (CUE_coef(:)) * fluxtot(:,ipassive,kk,l) + & |
|---|
| 795 | (CUE_coef(:)) * fluxtot_flood(:,ipassive,kk,l) |
|---|
| 796 | ELSE |
|---|
| 797 | !For Active pool |
|---|
| 798 | DOC(:,m,l,ifree,iact,kk) = DOC(:,m,l,ifree,iact,kk) + (CUE_coef(:)) * fluxtot(:,iactive,kk,l) |
|---|
| 799 | !For Slow pool |
|---|
| 800 | DOC(:,m,l,ifree,islo,kk) = DOC(:,m,l,ifree,islo,kk) + (CUE_coef(:)) * fluxtot(:,islow,kk,l) |
|---|
| 801 | !For Passive pool |
|---|
| 802 | DOC(:,m,l,ifree,ipas,kk) = DOC(:,m,l,ifree,ipas,kk) + (CUE_coef(:)) * fluxtot(:,ipassive,kk,l) |
|---|
| 803 | ENDIF |
|---|
| 804 | ENDDO !End loop over elements |
|---|
| 805 | ENDDO !End loop over soil layers |
|---|
| 806 | |
|---|
| 807 | DO j = 1,npool !Loop over pools |
|---|
| 808 | DO l = 1,nbdl !Loop over soil layers |
|---|
| 809 | |
|---|
| 810 | DOC(:,m,l,ifree,j,icarbon) = DOC(:,m,l,ifree,j,icarbon) - fluxtot_DOC(:,m,l,j) - fluxtot_DOC_flood(:,m,l,j) |
|---|
| 811 | |
|---|
| 812 | ENDDO !End loop over soil layers! |
|---|
| 813 | ENDDO !End loop over soil pool! |
|---|
| 814 | |
|---|
| 815 | !! 2.3.5 Adsorption/resorption of DOC using linear Mass isotherm assuming |
|---|
| 816 | !that DOC from native soil is zero (b parameters in Nodvin et al., 1986, |
|---|
| 817 | !Soil Science) |
|---|
| 818 | !For the moment, fixed parameters taken from Kaiser and others,1996, b in mg/g soil |
|---|
| 819 | Kd(:,:)=kd_ads |
|---|
| 820 | Kd(:,1) = dix**(-3.1+0.2*log10(clay(:)*cent)+log10(z_soil(1)*cent/deux)) |
|---|
| 821 | DO l = 2,nbdl |
|---|
| 822 | ! IM, b or Kd calculating following the statistical model obtained in |
|---|
| 823 | ! Camino Serrano et al. in prep |
|---|
| 824 | Kd(:,l) = dix**(-3.1+0.2*log10(clay(:)*cent)+log10((z_soil(l)+z_soil(l-1))/deux)) |
|---|
| 825 | ! Kd(:,l) = 0.001225841-0.000212346*soil_ph(:)+0.003739918*clay(:) |
|---|
| 826 | ENDDO |
|---|
| 827 | Kd(:,:)=MAX(Kd(:,:),dix**(-3.2)) |
|---|
| 828 | Kd(:,:)=MIN(Kd(:,:),dix**(-1.5)) |
|---|
| 829 | |
|---|
| 830 | ! Calculation of amount adsorbed/desorbed based on |
|---|
| 831 | ! Ota et al., 2013 JGR |
|---|
| 832 | DO l = 1,nbdl !Loop over soil layers |
|---|
| 833 | DO kk = 1,nelements !Loop over elements |
|---|
| 834 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 835 | DOC_RE(:,m,l,kkk,kk) = (Kd(:,l)*bulk_dens(:))/(Kd(:,l)*bulk_dens(:)+un)* & |
|---|
| 836 | (DOC(:,m,l,ifree,kkk,kk)+DOC(:,m,l,iadsorbed,kkk,kk)) |
|---|
| 837 | ENDDO !End loop over soil and litter pool |
|---|
| 838 | ENDDO !End loop over elements |
|---|
| 839 | ENDDO !End loop over soil layers |
|---|
| 840 | |
|---|
| 841 | DOC_old(:,m,:,:,:,:)= zero |
|---|
| 842 | DOC_old(:,m,:,:,:,:)=DOC(:,m,:,:,:,:) |
|---|
| 843 | DO l = 1,nbdl !Loop over soil layers |
|---|
| 844 | DO kk = 1,nelements !Loop over elements |
|---|
| 845 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 846 | WHERE (((DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) .GT. zero) .AND. (abs(DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) .GT. DOC_old(:,m,l,ifree,kkk,kk))) |
|---|
| 847 | !To avoid adsorbing more DOC than existing (when there is not enough free carbon) |
|---|
| 848 | DOC(:,m,l,iadsorbed,kkk,kk)= DOC_old(:,m,l,iadsorbed,kkk,kk)+ DOC_old(:,m,l,ifree,kkk,kk) |
|---|
| 849 | DOC(:,m,l,ifree,kkk,kk)= zero |
|---|
| 850 | ELSEWHERE (((DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) .LT. zero) .AND. (abs(DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) .GT. DOC_old(:,m,l,iadsorbed,kkk,kk))) |
|---|
| 851 | !To avoid desorbing more DOC than existing (when there is not enough adsorbed carbon) |
|---|
| 852 | DOC(:,m,l,iadsorbed,kkk,kk)= zero |
|---|
| 853 | DOC(:,m,l,ifree,kkk,kk)= DOC_old(:,m,l,iadsorbed,kkk,kk)+ DOC_old(:,m,l,ifree,kkk,kk) |
|---|
| 854 | ELSEWHERE ((DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) .NE. zero) |
|---|
| 855 | !The normal functioning of the distribution coefficient to reach equilibrium between DOC adsorbed and DOC free |
|---|
| 856 | DOC(:,m,l,ifree,kkk,kk)=DOC_old(:,m,l,ifree,kkk,kk)-(DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) |
|---|
| 857 | DOC(:,m,l,iadsorbed,kkk,kk)= DOC_old(:,m,l,iadsorbed,kkk,kk)+(DOC_RE(:,m,l,kkk,kk)-DOC_old(:,m,l,iadsorbed,kkk,kk)) |
|---|
| 858 | ELSEWHERE |
|---|
| 859 | DOC(:,m,l,ifree,kkk,kk)=DOC_old(:,m,l,ifree,kkk,kk) |
|---|
| 860 | DOC(:,m,l,iadsorbed,kkk,kk)= DOC_old(:,m,l,iadsorbed,kkk,kk) |
|---|
| 861 | ENDWHERE |
|---|
| 862 | ENDDO !End loop over soil and litter pool |
|---|
| 863 | ENDDO !End loop over elements |
|---|
| 864 | ENDDO !End loop over soil layers |
|---|
| 865 | |
|---|
| 866 | |
|---|
| 867 | |
|---|
| 868 | !! 2.3.6 Transport of DOC with the water fluxes following Futter et al., |
|---|
| 869 | ! (2007) Water ressources research. |
|---|
| 870 | |
|---|
| 871 | !! 2.3.6.1 Change DOC free from gC m-2 of soil to g C m^-3 of water |
|---|
| 872 | DO kk = 1, nelements !Loop over elements |
|---|
| 873 | |
|---|
| 874 | DO k = 1, npool ! Loop over soil and litter pools |
|---|
| 875 | |
|---|
| 876 | WHERE( soil_mc(:,1,pref_soil_veg(m)) .GT. zero) |
|---|
| 877 | |
|---|
| 878 | DOC(:,m,1,ifree,k,kk) = DOC(:,m,1,ifree,k,kk) / (z_soil(1)*soil_mc(:,1,pref_soil_veg(m))) |
|---|
| 879 | |
|---|
| 880 | ELSEWHERE |
|---|
| 881 | DOC(:,m,1,ifree,k,kk) = DOC(:,m,1,ifree,k,kk) |
|---|
| 882 | ENDWHERE |
|---|
| 883 | |
|---|
| 884 | ENDDO ! End loop over soil and litter pools |
|---|
| 885 | |
|---|
| 886 | ENDDO !End loop over elements |
|---|
| 887 | |
|---|
| 888 | DO l = 2,nbdl !Loop over soil layers |
|---|
| 889 | |
|---|
| 890 | DO kk = 1, nelements !Loop over elements |
|---|
| 891 | |
|---|
| 892 | DO k = 1, npool ! Loop over soil and litter pools |
|---|
| 893 | |
|---|
| 894 | WHERE( soil_mc(:,l,pref_soil_veg(m)) .GT. zero) |
|---|
| 895 | |
|---|
| 896 | DOC(:,m,l,ifree,k,kk) = DOC(:,m,l,ifree,k,kk) / ((z_soil(l)-z_soil(l-1))*soil_mc(:,l,pref_soil_veg(m))) |
|---|
| 897 | |
|---|
| 898 | ELSEWHERE |
|---|
| 899 | DOC(:,m,l,ifree,k,kk) = DOC(:,m,l,ifree,k,kk) |
|---|
| 900 | ENDWHERE |
|---|
| 901 | |
|---|
| 902 | ENDDO ! End loop over soil and litter pools |
|---|
| 903 | |
|---|
| 904 | ENDDO !End loop over elements |
|---|
| 905 | |
|---|
| 906 | ENDDO !End loop over soil layers |
|---|
| 907 | ! DOC fluxes between layers calculated (we multiplied by |
|---|
| 908 | ! 1E-3 to convert from kg/m2 to m3/m2) |
|---|
| 909 | DO l = 1,nbdl-1 !Loop over soil layers |
|---|
| 910 | DO kk = 1,nelements !Loop over elements |
|---|
| 911 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 912 | WHERE ((wat_flux(:,l,pref_soil_veg(m)) .GT. 0.) .AND. (soil_mc(:,l,pref_soil_veg(m)) .GT. zero)) |
|---|
| 913 | DOC_FLUX(:,m,l,kkk,kk) = DOC(:,m,l,ifree,kkk,kk)*wat_flux(:,l,pref_soil_veg(m))*1E-3*flux_red(:) |
|---|
| 914 | ELSEWHERE ((wat_flux(:,l,pref_soil_veg(m)) .LT. 0.) .AND. (soil_mc(:,l,pref_soil_veg(m)) .GT. zero)) |
|---|
| 915 | DOC_FLUX(:,m,l,kkk,kk) = DOC(:,m,l+1,ifree,kkk,kk)*abs(wat_flux(:,l,pref_soil_veg(m)))*1E-3*flux_red(:) |
|---|
| 916 | ELSEWHERE |
|---|
| 917 | DOC_FLUX(:,m,l,kkk,kk) = zero |
|---|
| 918 | ENDWHERE |
|---|
| 919 | ENDDO !End loop over soil and litter pool |
|---|
| 920 | ENDDO !End loop over elements |
|---|
| 921 | ENDDO !End loop over soil layers |
|---|
| 922 | |
|---|
| 923 | !For the last layer |
|---|
| 924 | DO kk = 1,nelements !Loop over elements |
|---|
| 925 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 926 | WHERE ((wat_flux(:,nbdl,pref_soil_veg(m)) .GT. 0.) .AND. (soil_mc(:,nbdl,pref_soil_veg(m)) .GT. zero)) |
|---|
| 927 | DOC_FLUX(:,m,nbdl,kkk,kk) = DOC(:,m,nbdl,ifree,kkk,kk)*wat_flux(:,nbdl,pref_soil_veg(m))*1E-3*flux_red(:) |
|---|
| 928 | ELSEWHERE |
|---|
| 929 | DOC_FLUX(:,m,nbdl,kkk,kk) = zero |
|---|
| 930 | ENDWHERE |
|---|
| 931 | ENDDO !End loop over soil and litter pool |
|---|
| 932 | ENDDO !End loop over elements |
|---|
| 933 | |
|---|
| 934 | !! 2.3.7 DOC is reconverted from gC m^â»3 of water in gC m^-2 of ground to exchange it with the other carbon pools |
|---|
| 935 | !For the first layer |
|---|
| 936 | |
|---|
| 937 | DO k = 1, npool ! Loop over soil and litter pools |
|---|
| 938 | DO kk = 1,nelements !Loop over elements |
|---|
| 939 | WHERE(soil_mc(:,1,pref_soil_veg(m)) .GT. zero) |
|---|
| 940 | DOC(:,m,1,ifree,k,kk)=DOC(:,m,1,ifree,k,kk) * soil_mc(:,1,pref_soil_veg(m)) * z_soil(1) |
|---|
| 941 | ELSEWHERE |
|---|
| 942 | DOC(:,m,1,ifree,k,kk)=DOC(:,m,1,ifree,k,kk) |
|---|
| 943 | ENDWHERE |
|---|
| 944 | ENDDO !End loop over elements |
|---|
| 945 | ENDDO ! End loop over soil and litter pools |
|---|
| 946 | |
|---|
| 947 | |
|---|
| 948 | !For the other layers |
|---|
| 949 | |
|---|
| 950 | DO l= 2, nbdl ! Loop over soil layers |
|---|
| 951 | DO k = 1, npool ! Loop over soil and litter pools |
|---|
| 952 | DO kk = 1,nelements !Loop over elements |
|---|
| 953 | WHERE(soil_mc(:,l,pref_soil_veg(m)) .GT. zero) |
|---|
| 954 | DOC(:,m,l,ifree,k,kk)=DOC(:,m,l,ifree,k,kk) * soil_mc(:,l,pref_soil_veg(m)) * (z_soil(l)-z_soil(l-1)) |
|---|
| 955 | ELSEWHERE |
|---|
| 956 | DOC(:,m,l,ifree,k,kk)=DOC(:,m,l,ifree,k,kk) |
|---|
| 957 | ENDWHERE |
|---|
| 958 | ENDDO !End loop over elements |
|---|
| 959 | ENDDO ! End loop over soil and litter pools |
|---|
| 960 | ENDDO ! End loop over soil layers |
|---|
| 961 | |
|---|
| 962 | ! DOC update |
|---|
| 963 | !For the first layer |
|---|
| 964 | DOC_old(:,m,:,:,:,:)= zero |
|---|
| 965 | DOC_old(:,m,:,:,:,:)=DOC(:,m,:,:,:,:) |
|---|
| 966 | |
|---|
| 967 | |
|---|
| 968 | DO kk = 1,nelements !Loop over elements |
|---|
| 969 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 970 | |
|---|
| 971 | WHERE (wat_flux(:,1,pref_soil_veg(m)) .GT. 0.) |
|---|
| 972 | DOC(:,m,1,ifree,kkk,kk) = DOC_old(:,m,1,ifree,kkk,kk) - MIN(DOC_old(:,m,1,ifree,kkk,kk),DOC_FLUX(:,m,1,kkk,kk)) |
|---|
| 973 | ELSEWHERE (wat_flux(:,1,pref_soil_veg(m)) .LT. 0.) |
|---|
| 974 | DOC(:,m,1,ifree,kkk,kk) = DOC_old(:,m,1,ifree,kkk,kk) + MIN(DOC_old(:,m,2,ifree,kkk,kk),DOC_FLUX(:,m,1,kkk,kk)) |
|---|
| 975 | ELSEWHERE |
|---|
| 976 | DOC(:,m,1,ifree,kkk,kk) = DOC_old(:,m,1,ifree,kkk,kk) |
|---|
| 977 | ENDWHERE |
|---|
| 978 | ENDDO !End loop over soil and litter pool |
|---|
| 979 | ENDDO !End loop over elements |
|---|
| 980 | |
|---|
| 981 | ! For the other layers |
|---|
| 982 | DO l = 2,nbdl-1 !Loop over soil layers |
|---|
| 983 | DO kk = 1,nelements !Loop over elements |
|---|
| 984 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 985 | WHERE ((wat_flux(:,l,pref_soil_veg(m)) .GT. 0.) .AND. (wat_flux(:,l-1,pref_soil_veg(m)) .GT. 0.)) |
|---|
| 986 | DOC(:,m,l,ifree,kkk,kk) = DOC_old(:,m,l,ifree,kkk,kk) - MIN(DOC_FLUX(:,m,l,kkk,kk),DOC_old(:,m,l,ifree,kkk,kk)) + MIN(DOC_FLUX(:,m,l-1,kkk,kk),DOC_old(:,m,l-1,ifree,kkk,kk)) |
|---|
| 987 | ELSEWHERE ((wat_flux(:,l,pref_soil_veg(m)) .LT. 0.) .AND. (wat_flux(:,l-1,pref_soil_veg(m)) .LT. 0.)) |
|---|
| 988 | DOC(:,m,l,ifree,kkk,kk) = DOC_old(:,m,l,ifree,kkk,kk) + MIN(DOC_FLUX(:,m,l,kkk,kk),DOC_old(:,m,l+1,ifree,kkk,kk)) - MIN(DOC_FLUX(:,m,l-1,kkk,kk),DOC_old(:,m,l,ifree,kkk,kk)) |
|---|
| 989 | ELSEWHERE ((wat_flux(:,l,pref_soil_veg(m)) .GT. 0.) .AND. (wat_flux(:,l-1,pref_soil_veg(m)) .LT. 0.)) |
|---|
| 990 | DOC(:,m,l,ifree,kkk,kk) = DOC_old(:,m,l,ifree,kkk,kk) - MIN(DOC_FLUX(:,m,l,kkk,kk),DOC_old(:,m,l,ifree,kkk,kk)) - MIN(DOC_FLUX(:,m,l-1,kkk,kk),DOC_old(:,m,l,ifree,kkk,kk)) |
|---|
| 991 | ELSEWHERE ((wat_flux(:,l,pref_soil_veg(m)) .LT. 0.) .AND. (wat_flux(:,l-1,pref_soil_veg(m)) .GT. 0.)) |
|---|
| 992 | DOC(:,m,l,ifree,kkk,kk) = DOC_old(:,m,l,ifree,kkk,kk) + MIN(DOC_FLUX(:,m,l,kkk,kk),DOC_old(:,m,l+1,ifree,kkk,kk)) + MIN(DOC_FLUX(:,m,l-1,kkk,kk),DOC_old(:,m,l-1,ifree,kkk,kk)) |
|---|
| 993 | ELSEWHERE |
|---|
| 994 | DOC(:,m,l,ifree,kkk,kk) = DOC_old(:,m,l,ifree,kkk,kk) |
|---|
| 995 | ENDWHERE |
|---|
| 996 | ENDDO !End loop over soil and litter pool |
|---|
| 997 | ENDDO !End loop over elements |
|---|
| 998 | ENDDO !End loop over soil layers |
|---|
| 999 | |
|---|
| 1000 | !For the last layer |
|---|
| 1001 | DO kk = 1,nelements !Loop over elements |
|---|
| 1002 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 1003 | WHERE (wat_flux(:,nbdl-1,pref_soil_veg(m)) .GT. 0.) |
|---|
| 1004 | DOC(:,m,nbdl,ifree,kkk,kk) = DOC_old(:,m,nbdl,ifree,kkk,kk) + MIN(DOC_FLUX(:,m,nbdl-1,kkk,kk),DOC_old(:,m,nbdl-1,ifree,kkk,kk)) |
|---|
| 1005 | ELSEWHERE (wat_flux(:,nbdl-1,pref_soil_veg(m)) .LT. 0.) |
|---|
| 1006 | DOC(:,m,nbdl,ifree,kkk,kk) = DOC_old(:,m,nbdl,ifree,kkk,kk) - MIN(DOC_FLUX(:,m,nbdl-1,kkk,kk),DOC_old(:,m,nbdl,ifree,kkk,kk)) |
|---|
| 1007 | ELSEWHERE |
|---|
| 1008 | DOC(:,m,nbdl,ifree,kkk,kk) = DOC_old(:,m,nbdl,ifree,kkk,kk) |
|---|
| 1009 | ENDWHERE |
|---|
| 1010 | ENDDO !End loop over soil and litter pool |
|---|
| 1011 | ENDDO !End loop over elements |
|---|
| 1012 | |
|---|
| 1013 | !! 2.3.8 DOC transport by diffusion |
|---|
| 1014 | !! 2.3.8.1 Calculation of the DOC fluxes by diffusion |
|---|
| 1015 | ! Here we use the DOC concentration in the soil and not in water to |
|---|
| 1016 | ! stabilize the calcul of |
|---|
| 1017 | ! water distribution is continuous in the soil column (no dry places) |
|---|
| 1018 | |
|---|
| 1019 | |
|---|
| 1020 | DOC_old2(:,m,:,:,:,:)=zero |
|---|
| 1021 | DOC_old_buffer(:,m,:,:,:,:)=zero |
|---|
| 1022 | DOC_old2(:,m,:,:,:,:)=DOC(:,m,:,:,:,:) |
|---|
| 1023 | |
|---|
| 1024 | DO kkk = 1, npool ! Loop over soil and litter pools |
|---|
| 1025 | DO kk = 1, nelements ! Loop over elements |
|---|
| 1026 | |
|---|
| 1027 | DOC_FLUX_DIFF(:,m,1,kkk,kk) = Dif_DOC(:)*ABS(DOC_old2(:,m,1,ifree,kkk,kk)/(z_soil(1))-DOC_old2(:,m,2,ifree,kkk,kk)/(z_soil(2)-z_soil(1)))/(z_soil(2)-z_soil(1)) |
|---|
| 1028 | |
|---|
| 1029 | DO l= 2, nbdl-1 ! Loop over soil layers |
|---|
| 1030 | DOC_FLUX_DIFF(:,m,l,kkk,kk) = Dif_DOC(:)*ABS(DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1))-DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)))/(z_soil(l+1)-z_soil(l)) |
|---|
| 1031 | ENDDO |
|---|
| 1032 | |
|---|
| 1033 | !Below we checked if in case that, in a given layer, you have diffusion |
|---|
| 1034 | !in the above and below litters, both fluxes are not higher than the |
|---|
| 1035 | !stocks of the given layer. |
|---|
| 1036 | DO l =1, nbdl-2 |
|---|
| 1037 | WHERE (DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .LT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1038 | DOC_old2(:,m,l+2,ifree,kkk,kk)/(z_soil(l+2)-z_soil(l+1)) .LT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1039 | DOC_FLUX_DIFF(:,m,l,kkk,kk) + DOC_FLUX_DIFF(:,m,l+1,kkk,kk) .GT. DOC_old2(:,m,l+1,ifree,kkk,kk)) |
|---|
| 1040 | DOC_FLUX_DIFF(:,m,l,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk)*(DOC_FLUX_DIFF(:,m,l,kkk,kk)/(DOC_FLUX_DIFF(:,m,l,kkk,kk)+DOC_FLUX_DIFF(:,m,l+1,kkk,kk))) |
|---|
| 1041 | DOC_FLUX_DIFF(:,m,l+1,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk)*(DOC_FLUX_DIFF(:,m,l+1,kkk,kk)/(DOC_FLUX_DIFF(:,m,l,kkk,kk)+DOC_FLUX_DIFF(:,m,l+1,kkk,kk))) |
|---|
| 1042 | ELSEWHERE (DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .GE. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1043 | DOC_old2(:,m,l+2,ifree,kkk,kk)/(z_soil(l+2)-z_soil(l+1)) .LT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1044 | DOC_old2(:,m,l+1,ifree,kkk,kk) + DOC_FLUX_DIFF(:,m,l,kkk,kk) - DOC_FLUX_DIFF(:,m,l+1,kkk,kk) .LE. min_stomate) |
|---|
| 1045 | DOC_FLUX_DIFF(:,m,l,kkk,kk) = DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1046 | DOC_FLUX_DIFF(:,m,l+1,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk) + DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1047 | ELSEWHERE (DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .LT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1048 | DOC_old2(:,m,l+2,ifree,kkk,kk)/(z_soil(l+2)-z_soil(l+1)) .GE. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1049 | DOC_old2(:,m,l+1,ifree,kkk,kk) - DOC_FLUX_DIFF(:,m,l,kkk,kk) + DOC_FLUX_DIFF(:,m,l+1,kkk,kk) .LE. min_stomate) |
|---|
| 1050 | DOC_FLUX_DIFF(:,m,l,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk) + DOC_FLUX_DIFF(:,m,l+1,kkk,kk) |
|---|
| 1051 | DOC_FLUX_DIFF(:,m,l+1,kkk,kk) = DOC_FLUX_DIFF(:,m,l+1,kkk,kk) |
|---|
| 1052 | ELSEWHERE |
|---|
| 1053 | DOC_FLUX_DIFF(:,m,l,kkk,kk) = DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1054 | DOC_FLUX_DIFF(:,m,l+1,kkk,kk) = DOC_FLUX_DIFF(:,m,l+1,kkk,kk) |
|---|
| 1055 | ENDWHERE |
|---|
| 1056 | ENDDO |
|---|
| 1057 | |
|---|
| 1058 | DO l= 1, nbdl-1 ! Loop over soil layers |
|---|
| 1059 | WHERE ((DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .LT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1060 | ((DOC_FLUX_DIFF(:,m,l,kkk,kk) - DOC_old2(:,m,l+1,ifree,kkk,kk)) .GE. min_stomate)) |
|---|
| 1061 | DOC(:,m,l,ifree,kkk,kk) = DOC_old2(:,m,l,ifree,kkk,kk) + DOC_old2(:,m,l+1,ifree,kkk,kk) + DOC_old_buffer(:,m,l,ifree,kkk,kk) |
|---|
| 1062 | DOC_old_buffer(:,m,l+1,ifree,kkk,kk) = - DOC_old2(:,m,l+1,ifree,kkk,kk) |
|---|
| 1063 | DOC(:,m,l+1,ifree,kkk,kk) = zero |
|---|
| 1064 | ELSEWHERE ((DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .LT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1065 | ((DOC_old2(:,m,l+1,ifree,kkk,kk) - DOC_FLUX_DIFF(:,m,l,kkk,kk)) .GT. min_stomate)) |
|---|
| 1066 | DOC(:,m,l,ifree,kkk,kk) = DOC_old2(:,m,l,ifree,kkk,kk) + DOC_FLUX_DIFF(:,m,l,kkk,kk) + DOC_old_buffer(:,m,l,ifree,kkk,kk) |
|---|
| 1067 | DOC_old_buffer(:,m,l+1,ifree,kkk,kk) = - DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1068 | DOC(:,m,l+1,ifree,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk) - DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1069 | ELSEWHERE ((DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .GT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1070 | ((DOC_FLUX_DIFF(:,m,l,kkk,kk) - DOC_old2(:,m,l,ifree,kkk,kk)) .GE. min_stomate)) |
|---|
| 1071 | DOC(:,m,l,ifree,kkk,kk) = zero + DOC_old_buffer(:,m,l,ifree,kkk,kk) |
|---|
| 1072 | DOC_old_buffer(:,m,l+1,ifree,kkk,kk) = DOC_old2(:,m,l,ifree,kkk,kk) |
|---|
| 1073 | DOC(:,m,l+1,ifree,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk) + DOC_old2(:,m,l,ifree,kkk,kk) |
|---|
| 1074 | ELSEWHERE ((DOC_old2(:,m,l,ifree,kkk,kk)/(z_soil(l)-z_soil(l-1)) .GT. DOC_old2(:,m,l+1,ifree,kkk,kk)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1075 | ((DOC_old2(:,m,l,ifree,kkk,kk) - DOC_FLUX_DIFF(:,m,l,kkk,kk)) .GT. min_stomate)) |
|---|
| 1076 | DOC(:,m,l,ifree,kkk,kk) = DOC_old2(:,m,l,ifree,kkk,kk) - DOC_FLUX_DIFF(:,m,l,kkk,kk) + DOC_old_buffer(:,m,l,ifree,kkk,kk) |
|---|
| 1077 | DOC_old_buffer(:,m,l+1,ifree,kkk,kk) = DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1078 | DOC(:,m,l+1,ifree,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk) + DOC_FLUX_DIFF(:,m,l,kkk,kk) |
|---|
| 1079 | ELSEWHERE |
|---|
| 1080 | DOC(:,m,l,ifree,kkk,kk) = DOC_old2(:,m,l,ifree,kkk,kk) |
|---|
| 1081 | DOC(:,m,l+1,ifree,kkk,kk) = DOC_old2(:,m,l+1,ifree,kkk,kk) |
|---|
| 1082 | ENDWHERE |
|---|
| 1083 | ENDDO ! End loop over soil layers |
|---|
| 1084 | ENDDO ! End loop over elements |
|---|
| 1085 | ENDDO ! End loop over DOC pools |
|---|
| 1086 | |
|---|
| 1087 | !! 2.3.9 DOC export |
|---|
| 1088 | !! Calculate total DOC going out of the system (the factor 1E-3 is |
|---|
| 1089 | !! applied to convert runoff, floodout, drainage from kg/m2 to m3/m2) |
|---|
| 1090 | !! We assume that runoff and floodout affects the first layer of soil |
|---|
| 1091 | !! and drainage only the last layer. |
|---|
| 1092 | !! Drainage and runoff are given by soil type by hydrol.f90 but not floodout (it is a weighed mean) explaining why |
|---|
| 1093 | !! the calculation is a bit different between DOC_RUN and DOC_FLOOD. Moreover, floodout is computed as evaporation-precipitation, |
|---|
| 1094 | !! so it represent an export to the rivers only if floodout is negative explaing why we have to multiply by -un. |
|---|
| 1095 | !! Be careful we do not * by dt because it is already done in hydrol.f90 |
|---|
| 1096 | |
|---|
| 1097 | !! based on fast reservoir, we calculate a reduction factor. The calculation is based on the assumption that there |
|---|
| 1098 | !! head waters that is the main source of DOC to inland waters, while areas more remote from the head waters have a neglibile |
|---|
| 1099 | !! effect on the DOC in streams. We assume that the export from soils to head waters is proportional to the |
|---|
| 1100 | !! square root of the fast reservoir storage. This is consitnet with empirical finding relating stream width to discharge. As we |
|---|
| 1101 | !! do not directly consider a stream surface area, we simply assign a reference fast reservoir for which we assume that |
|---|
| 1102 | !! all top soils export DOC into the head waters (which can include streamlets). Note that very high runoff appears where swamps |
|---|
| 1103 | !! are pesent. |
|---|
| 1104 | |
|---|
| 1105 | |
|---|
| 1106 | fastr_corr(:) = (fastr(:)**undemi)/(fastr_ref**undemi) |
|---|
| 1107 | WHERE (fastr_corr(:) .LT. zero) |
|---|
| 1108 | fastr_corr(:) = zero |
|---|
| 1109 | ELSEWHERE |
|---|
| 1110 | fastr_corr(:) = fastr_corr(:) |
|---|
| 1111 | ENDWHERE |
|---|
| 1112 | |
|---|
| 1113 | !! Based on maximum export concentration, we calculate a correction factor |
|---|
| 1114 | soilDOC_corr(:) = zero |
|---|
| 1115 | soilDOC_31mm(:) = zero |
|---|
| 1116 | DO kk = 1,nelements !Loop over elements |
|---|
| 1117 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 1118 | soilDOC_31mm(:) = soilDOC_31mm + DOC(:,m,1,ifree,kkk,kk) |
|---|
| 1119 | IF (sro_bottom .GT. 1) THEN |
|---|
| 1120 | DO l=2,sro_bottom |
|---|
| 1121 | soilDOC_31mm(:) = soilDOC_31mm(:) + DOC(:,m,l,ifree,kkk,kk) |
|---|
| 1122 | ENDDO !l=2,sro_bottom |
|---|
| 1123 | ENDIF !(sro_bottom .GT. 1) |
|---|
| 1124 | ENDDO !kkk = 1,npool |
|---|
| 1125 | ENDDO !kk = 1,nelements |
|---|
| 1126 | ! |
|---|
| 1127 | WHERE (soilDOC_31mm(:)*flux_red(:)*fastr_corr(:)/soilwater_31mm(:,pref_soil_veg(m)) .GT. DOCexp_max) |
|---|
| 1128 | soilDOC_corr(:) = DOCexp_max/(soilDOC_31mm(:)*flux_red(:)*fastr_corr(:)/soilwater_31mm(:,pref_soil_veg(m))) |
|---|
| 1129 | ELSEWHERE |
|---|
| 1130 | soilDOC_corr(:) = un |
|---|
| 1131 | ENDWHERE |
|---|
| 1132 | soilDOC_corr(:) = soilDOC_corr(:) * flux_red(:) * fastr_corr(:) |
|---|
| 1133 | ! |
|---|
| 1134 | DO kk = 1,nelements !Loop over elements |
|---|
| 1135 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 1136 | !DOC lost through runoff for the first layer |
|---|
| 1137 | WHERE (soilwater_31mm(:,pref_soil_veg(m)) .GT. zero) |
|---|
| 1138 | DOC_RUN(:,m,kkk,kk) = DOC_RUN(:,m,kkk,kk) + MIN(DOC(:,m,1,ifree,kkk,kk),lat_exp*soilDOC_corr(:) & |
|---|
| 1139 | & * (runoff_per_soil(:,pref_soil_veg(m))*1E-3/soilwater_31mm(:,pref_soil_veg(m))) & |
|---|
| 1140 | & * DOC(:,m,1,ifree,kkk,kk)) |
|---|
| 1141 | ELSEWHERE |
|---|
| 1142 | DOC_RUN(:,m,kkk,kk) = DOC_RUN(:,m,kkk,kk) |
|---|
| 1143 | ENDWHERE |
|---|
| 1144 | ! |
|---|
| 1145 | IF (kkk .EQ. imetabo) THEN |
|---|
| 1146 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,imetabo,kk) |
|---|
| 1147 | DOC_RUN(:,m,imetabo,kk) = zero |
|---|
| 1148 | ELSEIF (kkk .EQ. istrabo) THEN |
|---|
| 1149 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,istrabo,kk) * (un - lignin_struc_above(:,m)) |
|---|
| 1150 | DOC_RUN(:,m,islo,kk) = DOC_RUN(:,m,islo,kk) + DOC_RUN(:,m,istrabo,kk) * lignin_struc_above(:,m) |
|---|
| 1151 | DOC_RUN(:,m,istrabo,kk) = zero |
|---|
| 1152 | ELSEIF (kkk .EQ. istrbel) THEN |
|---|
| 1153 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,istrbel,kk) * (un - lignin_struc_below(:,m,1)) |
|---|
| 1154 | DOC_RUN(:,m,islo,kk) = DOC_RUN(:,m,islo,kk) + DOC_RUN(:,m,istrbel,kk) * lignin_struc_below(:,m,1) |
|---|
| 1155 | DOC_RUN(:,m,istrbel,kk) = zero |
|---|
| 1156 | ELSEIF (kkk .EQ. imetbel) THEN |
|---|
| 1157 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,imetbel,kk) |
|---|
| 1158 | DOC_RUN(:,m,imetbel,kk) = zero |
|---|
| 1159 | ELSE |
|---|
| 1160 | DOC_RUN(:,m,kkk,kk) = DOC_RUN(:,m,kkk,kk) |
|---|
| 1161 | ENDIF |
|---|
| 1162 | ! |
|---|
| 1163 | !And for the layers 2-? layers |
|---|
| 1164 | IF (sro_bottom .GT. 1) THEN |
|---|
| 1165 | DO l=2,sro_bottom |
|---|
| 1166 | WHERE (soilwater_31mm(:,pref_soil_veg(m)) .GT. zero) |
|---|
| 1167 | DOC_RUN(:,m,kkk,kk) = DOC_RUN(:,m,kkk,kk) + MIN(DOC(:,m,l,ifree,kkk,kk), & |
|---|
| 1168 | & lat_exp * soilDOC_corr(:) * (runoff_per_soil(:,pref_soil_veg(m))*1E-3/soilwater_31mm(:,pref_soil_veg(m))) & |
|---|
| 1169 | & * DOC(:,m,l,ifree,kkk,kk)) |
|---|
| 1170 | ELSEWHERE |
|---|
| 1171 | DOC_RUN(:,m,kkk,kk) = DOC_RUN(:,m,kkk,kk) |
|---|
| 1172 | ENDWHERE |
|---|
| 1173 | ! |
|---|
| 1174 | IF (kkk .EQ. imetabo) THEN |
|---|
| 1175 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,imetabo,kk) |
|---|
| 1176 | DOC_RUN(:,m,imetabo,kk) = zero |
|---|
| 1177 | ELSEIF (kkk .EQ. istrabo) THEN |
|---|
| 1178 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,istrabo,kk) * (un - lignin_struc_above(:,m)) |
|---|
| 1179 | DOC_RUN(:,m,islo,kk) = DOC_RUN(:,m,islo,kk) + DOC_RUN(:,m,istrabo,kk) * lignin_struc_above(:,m) |
|---|
| 1180 | DOC_RUN(:,m,istrabo,kk) = zero |
|---|
| 1181 | ELSEIF (kkk .EQ. istrbel) THEN |
|---|
| 1182 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,istrbel,kk) * (un - lignin_struc_below(:,m,l)) |
|---|
| 1183 | DOC_RUN(:,m,islo,kk) = DOC_RUN(:,m,islo,kk) + DOC_RUN(:,m,istrbel,kk) * lignin_struc_below(:,m,l) |
|---|
| 1184 | DOC_RUN(:,m,istrbel,kk) = zero |
|---|
| 1185 | ELSEIF (kkk .EQ. imetbel) THEN |
|---|
| 1186 | DOC_RUN(:,m,iact,kk) = DOC_RUN(:,m,iact,kk) + DOC_RUN(:,m,imetbel,kk) |
|---|
| 1187 | DOC_RUN(:,m,imetbel,kk) = zero |
|---|
| 1188 | ELSE |
|---|
| 1189 | DOC_RUN(:,m,kkk,kk) = DOC_RUN(:,m,kkk,kk) |
|---|
| 1190 | ENDIF |
|---|
| 1191 | ENDDO |
|---|
| 1192 | ENDIF !sro_bottom .GT. 1 |
|---|
| 1193 | ! |
|---|
| 1194 | WHERE (soil_mc(:,nbdl,pref_soil_veg(m)) .GT. zero) |
|---|
| 1195 | DOC_DRAIN(:,m,kkk,kk) = DOC_DRAIN(:,m,kkk,kk) + MIN(DOC(:,m,nbdl,ifree,kkk,kk),& |
|---|
| 1196 | & lat_exp*DOC(:,m,nbdl,ifree,kkk,kk)*drainage_per_soil(:,pref_soil_veg(m))*1E-3 & |
|---|
| 1197 | & /((z_soil(nbdl)-z_soil(nbdl-1)) * soil_mc(:,nbdl,pref_soil_veg(m)))) |
|---|
| 1198 | ELSEWHERE |
|---|
| 1199 | DOC_DRAIN(:,m,kkk,kk) = DOC_DRAIN(:,m,kkk,kk) |
|---|
| 1200 | ENDWHERE |
|---|
| 1201 | ! |
|---|
| 1202 | IF (kkk .EQ. imetabo) THEN |
|---|
| 1203 | DOC_DRAIN(:,m,iact,kk) = DOC_DRAIN(:,m,iact,kk) + DOC_DRAIN(:,m,imetabo,kk) |
|---|
| 1204 | DOC_DRAIN(:,m,imetabo,kk) = zero |
|---|
| 1205 | ELSEIF (kkk .EQ. istrabo) THEN |
|---|
| 1206 | DOC_DRAIN(:,m,iact,kk) = DOC_DRAIN(:,m,iact,kk) + DOC_DRAIN(:,m,istrabo,kk) * (un - lignin_struc_above(:,m)) |
|---|
| 1207 | DOC_DRAIN(:,m,islo,kk) = DOC_DRAIN(:,m,islo,kk) + DOC_DRAIN(:,m,istrabo,kk) * lignin_struc_above(:,m) |
|---|
| 1208 | DOC_DRAIN(:,m,istrabo,kk) = zero |
|---|
| 1209 | ELSEIF (kkk .EQ. istrbel) THEN |
|---|
| 1210 | DOC_DRAIN(:,m,iact,kk) = DOC_DRAIN(:,m,iact,kk) + DOC_DRAIN(:,m,istrbel,kk) * (un - lignin_struc_below(:,m,nbdl)) |
|---|
| 1211 | DOC_DRAIN(:,m,islo,kk) = DOC_DRAIN(:,m,islo,kk) + DOC_DRAIN(:,m,istrbel,kk) * lignin_struc_below(:,m,nbdl) |
|---|
| 1212 | DOC_DRAIN(:,m,istrbel,kk) = zero |
|---|
| 1213 | ELSEIF (kkk .EQ. imetbel) THEN |
|---|
| 1214 | DOC_DRAIN(:,m,iact,kk) = DOC_DRAIN(:,m,iact,kk) + DOC_DRAIN(:,m,imetbel,kk) |
|---|
| 1215 | DOC_DRAIN(:,m,imetbel,kk) = zero |
|---|
| 1216 | ELSE |
|---|
| 1217 | DOC_DRAIN(:,m,kkk,kk) = DOC_DRAIN(:,m,kkk,kk) |
|---|
| 1218 | ENDIF |
|---|
| 1219 | ! |
|---|
| 1220 | ENDDO !End loop over soil and litter pool |
|---|
| 1221 | !! TF-DOC |
|---|
| 1222 | WHERE (veget_max(:,m) .GT. zero) |
|---|
| 1223 | DOC_FLOOD(:,m,iact,kk) = DOC_FLOOD(:,m,iact,kk) + wet_dep_flood(:,m,kk)*undemi/veget_max(:,m) |
|---|
| 1224 | DOC_FLOOD(:,m,islo,kk) = DOC_FLOOD(:,m,islo,kk) + wet_dep_flood(:,m,kk)*undemi/veget_max(:,m) |
|---|
| 1225 | DOC_FLOOD(:,m,iact,kk) = DOC_FLOOD(:,m,iact,kk) + floodcarbon_input(:,m,iact,kk)*dt |
|---|
| 1226 | DOC_FLOOD(:,m,islo,kk) = DOC_FLOOD(:,m,islo,kk) + floodcarbon_input(:,m,islo,kk)*dt |
|---|
| 1227 | ELSEWHERE |
|---|
| 1228 | DOC_FLOOD(:,m,iact,kk) = DOC_FLOOD(:,m,iact,kk) |
|---|
| 1229 | ENDWHERE |
|---|
| 1230 | ! |
|---|
| 1231 | DO l=1,sro_bottom |
|---|
| 1232 | WHERE (veget_max(:,m) .GT. zero) |
|---|
| 1233 | DOC_FLOOD(:,m,islo,kk) = DOC_FLOOD(:,m,islo,kk) + CUE_coef(:) * fluxtot_flood(:,islow,kk,l) |
|---|
| 1234 | DOC_FLOOD(:,m,ipas,kk) = DOC_FLOOD(:,m,ipas,kk) + CUE_coef(:) * fluxtot_flood(:,ipassive,kk,l) |
|---|
| 1235 | DOC_FLOOD(:,m,iact,kk) = DOC_FLOOD(:,m,iact,kk) + CUE_coef(:) * fluxtot_flood(:,iactive,kk,l) |
|---|
| 1236 | ELSEWHERE |
|---|
| 1237 | DOC_FLOOD(:,m,iact,kk) = DOC_FLOOD(:,m,iact,kk) |
|---|
| 1238 | ENDWHERE |
|---|
| 1239 | ENDDO !l=1,sro_bottom |
|---|
| 1240 | ! |
|---|
| 1241 | ENDDO !End loop over elements |
|---|
| 1242 | |
|---|
| 1243 | |
|---|
| 1244 | DO kk = 1,nelements !Loop over elements |
|---|
| 1245 | DOC_EXP(:,m,irunoff,:,kk) = DOC_RUN(:,m,:,kk)/dt |
|---|
| 1246 | DOC_EXP(:,m,iflooded,:,kk) = DOC_FLOOD(:,m,:,kk)/dt |
|---|
| 1247 | DOC_EXP(:,m,idrainage,:,kk) = DOC_DRAIN(:,m,:,kk)/dt |
|---|
| 1248 | ENDDO !End loop over elements |
|---|
| 1249 | ! We substract runoff, floodout and drainage from DOC pools |
|---|
| 1250 | DO kkk = 1,npool !Loop over soil and litter pool |
|---|
| 1251 | DO kk = 1, nelements |
|---|
| 1252 | |
|---|
| 1253 | !For the first layer |
|---|
| 1254 | WHERE (soilwater_31mm(:,pref_soil_veg(m)) .GT. zero) |
|---|
| 1255 | DOC(:,m,1,ifree,kkk,kk) = DOC(:,m,1,ifree,kkk,kk) - MIN(DOC(:,m,1,ifree,kkk,kk), & |
|---|
| 1256 | & lat_exp * soilDOC_corr(:) * (runoff_per_soil(:,pref_soil_veg(m))*1E-3/soilwater_31mm(:,pref_soil_veg(m))) & |
|---|
| 1257 | & * DOC(:,m,1,ifree,kkk,kk)) |
|---|
| 1258 | ELSEWHERE |
|---|
| 1259 | DOC(:,m,1,ifree,kkk,kk) = DOC(:,m,1,ifree,kkk,kk) |
|---|
| 1260 | ENDWHERE |
|---|
| 1261 | !And for the layers 2-5 |
|---|
| 1262 | IF (sro_bottom .GT. 1) THEN |
|---|
| 1263 | DO l=2,sro_bottom |
|---|
| 1264 | WHERE (soilwater_31mm(:,pref_soil_veg(m)) .GT. zero) |
|---|
| 1265 | DOC(:,m,l,ifree,kkk,kk) = DOC(:,m,l,ifree,kkk,kk) - MIN(DOC(:,m,l,ifree,kkk,kk), & |
|---|
| 1266 | & lat_exp * soilDOC_corr(:) * (runoff_per_soil(:,pref_soil_veg(m))*1E-3/soilwater_31mm(:,pref_soil_veg(m))) & |
|---|
| 1267 | & * DOC(:,m,l,ifree,kkk,kk)) |
|---|
| 1268 | ELSEWHERE |
|---|
| 1269 | DOC(:,m,l,ifree,kkk,kk) = DOC(:,m,l,ifree,kkk,kk) |
|---|
| 1270 | ENDWHERE |
|---|
| 1271 | ENDDO |
|---|
| 1272 | ENDIF !sro_bottom .GT. 1 |
|---|
| 1273 | !For the last layer |
|---|
| 1274 | WHERE (soil_mc(:,nbdl,pref_soil_veg(m)) .GT. zero) |
|---|
| 1275 | DOC(:,m,nbdl,ifree,kkk,kk) = DOC(:,m,nbdl,ifree,kkk,kk) - & |
|---|
| 1276 | & MIN(DOC(:,m,nbdl,ifree,kkk,kk),& |
|---|
| 1277 | & lat_exp * DOC(:,m,nbdl,ifree,kkk,kk)*drainage_per_soil(:,pref_soil_veg(m))*1E-3 & |
|---|
| 1278 | & /((z_soil(nbdl)-z_soil(nbdl-1)) * soil_mc(:,nbdl,pref_soil_veg(m)))) |
|---|
| 1279 | ELSEWHERE |
|---|
| 1280 | DOC(:,m,nbdl,ifree,kkk,kk) = DOC(:,m,nbdl,ifree,kkk,kk) |
|---|
| 1281 | ENDWHERE |
|---|
| 1282 | ENDDO ! End loop over elements |
|---|
| 1283 | ENDDO !End loop over soil and litter pool |
|---|
| 1284 | |
|---|
| 1285 | !! 2.3.10 Transport of particulate organic C (i.e. active, slow and passive |
|---|
| 1286 | !! pools) following the second Fick's Law (O¿Brien and Stout, 1978; Wynn |
|---|
| 1287 | !! et al., 2005). Represent the bioturbation and is generally associated |
|---|
| 1288 | !! with transport plant debris (Elzein and Balesdent, 1995; Bruun et al., |
|---|
| 1289 | !! 2007; Braakhekke et al., 2011, Guenet et al., 2013) |
|---|
| 1290 | |
|---|
| 1291 | ! Definition of the diffusion rate from Guenet et al., (2013) BG for the |
|---|
| 1292 | ! moment but must depends on clay, ph organic C, or whatever... |
|---|
| 1293 | |
|---|
| 1294 | |
|---|
| 1295 | carbon_old(:,:,m,:)=zero |
|---|
| 1296 | carbon_old_buffer(:,:,m,:)=zero |
|---|
| 1297 | carbon_old(:,:,m,:)=carbon(:,:,m,:) |
|---|
| 1298 | |
|---|
| 1299 | DO kk = 1, ncarb ! Loop over soil and litter pools |
|---|
| 1300 | |
|---|
| 1301 | carbon_flux(:,kk,m,1) = Dif_coef(:)*ABS(carbon_old(:,kk,m,1)/(z_soil(1))-carbon_old(:,kk,m,2)/(z_soil(2)-z_soil(1)))/(z_soil(2)-z_soil(1)) |
|---|
| 1302 | |
|---|
| 1303 | DO l= 2, nbdl-1 ! Loop over soil layers |
|---|
| 1304 | carbon_flux(:,kk,m,l) = Dif_coef(:)*ABS(carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1))-carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)))/(z_soil(l+1)-z_soil(l)) |
|---|
| 1305 | ENDDO |
|---|
| 1306 | carbon_flux_old(:,kk,m,:) = carbon_flux(:,kk,m,:) |
|---|
| 1307 | |
|---|
| 1308 | !Below we checked if in case that, in a given layer, you have diffusion |
|---|
| 1309 | !in the above and below litters, both fluxes are not higher than the |
|---|
| 1310 | !stocks of the given layer. |
|---|
| 1311 | |
|---|
| 1312 | DO l =1, nbdl-2 |
|---|
| 1313 | WHERE (carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .LT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1314 | carbon_old(:,kk,m,l+2)/(z_soil(l+2)-z_soil(l+1)) .LT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1315 | carbon_flux(:,kk,m,l)+carbon_flux(:,kk,m,l+1) .GT. carbon_old(:,kk,m,l+1)) |
|---|
| 1316 | carbon_flux(:,kk,m,l) = carbon_old(:,kk,m,l+1)*(carbon_flux(:,kk,m,l)/(carbon_flux(:,kk,m,l)+carbon_flux(:,kk,m,l+1))) |
|---|
| 1317 | carbon_flux(:,kk,m,l+1) = carbon_old(:,kk,m,l+1)*(carbon_flux(:,kk,m,l+1)/(carbon_flux(:,kk,m,l)+carbon_flux(:,kk,m,l+1))) |
|---|
| 1318 | ELSEWHERE (carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .GE. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1319 | carbon_old(:,kk,m,l+2)/(z_soil(l+2)-z_soil(l+1)) .LT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1320 | carbon_old(:,kk,m,l+1) + carbon_flux(:,kk,m,l) - carbon_flux(:,kk,m,l+1) .LE. min_stomate) |
|---|
| 1321 | carbon_flux(:,kk,m,l) = carbon_flux(:,kk,m,l) |
|---|
| 1322 | carbon_flux(:,kk,m,l+1) = carbon_old(:,kk,m,l+1) + carbon_flux(:,kk,m,l) |
|---|
| 1323 | ELSEWHERE (carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .LT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1324 | carbon_old(:,kk,m,l+2)/(z_soil(l+2)-z_soil(l+1)) .GE. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l)) .AND. & |
|---|
| 1325 | carbon_old(:,kk,m,l+1) - carbon_flux(:,kk,m,l) + carbon_flux(:,kk,m,l+1) .LE. min_stomate) |
|---|
| 1326 | carbon_flux(:,kk,m,l) = carbon_old(:,kk,m,l+1) + carbon_flux(:,kk,m,l+1) |
|---|
| 1327 | carbon_flux(:,kk,m,l+1) = carbon_flux(:,kk,m,l+1) |
|---|
| 1328 | ELSEWHERE |
|---|
| 1329 | carbon_flux(:,kk,m,l) = carbon_flux(:,kk,m,l) |
|---|
| 1330 | carbon_flux(:,kk,m,l+1) = carbon_flux(:,kk,m,l+1) |
|---|
| 1331 | ENDWHERE |
|---|
| 1332 | ENDDO |
|---|
| 1333 | |
|---|
| 1334 | DO l= 1, nbdl-1 ! Loop over soil layers |
|---|
| 1335 | WHERE ((carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .LT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1336 | ((carbon_flux(:,kk,m,l) - carbon_old(:,kk,m,l+1)) .GE. min_stomate)) |
|---|
| 1337 | carbon(:,kk,m,l) = carbon_old(:,kk,m,l) + carbon_old(:,kk,m,l+1) + carbon_old_buffer(:,kk,m,l) |
|---|
| 1338 | carbon_old_buffer(:,kk,m,l+1) = -carbon_old(:,kk,m,l+1) |
|---|
| 1339 | carbon(:,kk,m,l+1) = zero |
|---|
| 1340 | ELSEWHERE ((carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .LT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1341 | ((carbon_old(:,kk,m,l+1) - carbon_flux(:,kk,m,l)) .GT. min_stomate)) |
|---|
| 1342 | carbon(:,kk,m,l) = carbon_old(:,kk,m,l) + carbon_flux(:,kk,m,l) + carbon_old_buffer(:,kk,m,l) |
|---|
| 1343 | carbon_old_buffer(:,kk,m,l+1) = - carbon_flux(:,kk,m,l) |
|---|
| 1344 | carbon(:,kk,m,l+1) = carbon_old(:,kk,m,l+1) - carbon_flux(:,kk,m,l) |
|---|
| 1345 | ELSEWHERE ((carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .GT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1346 | ((carbon_flux(:,kk,m,l) - carbon_old(:,kk,m,l)) .GE. min_stomate)) |
|---|
| 1347 | carbon(:,kk,m,l) =zero + carbon_old_buffer(:,kk,m,l) |
|---|
| 1348 | carbon_old_buffer(:,kk,m,l+1) = carbon_old(:,kk,m,l) |
|---|
| 1349 | carbon(:,kk,m,l+1) = carbon_old(:,kk,m,l+1) + carbon_old(:,kk,m,l) |
|---|
| 1350 | ELSEWHERE ((carbon_old(:,kk,m,l)/(z_soil(l)-z_soil(l-1)) .GT. carbon_old(:,kk,m,l+1)/(z_soil(l+1)-z_soil(l))) .AND. & |
|---|
| 1351 | ((carbon_old(:,kk,m,l) - carbon_flux(:,kk,m,l)) .GT. min_stomate)) |
|---|
| 1352 | carbon(:,kk,m,l) = carbon_old(:,kk,m,l) - carbon_flux(:,kk,m,l) + carbon_old_buffer(:,kk,m,l) |
|---|
| 1353 | carbon_old_buffer(:,kk,m,l+1) = carbon_flux(:,kk,m,l) |
|---|
| 1354 | carbon(:,kk,m,l+1) = carbon_old(:,kk,m,l+1) + carbon_flux(:,kk,m,l) |
|---|
| 1355 | ELSEWHERE |
|---|
| 1356 | carbon(:,kk,m,l) = carbon_old(:,kk,m,l) |
|---|
| 1357 | carbon(:,kk,m,l+1) = carbon_old(:,kk,m,l+1) |
|---|
| 1358 | ENDWHERE |
|---|
| 1359 | ENDDO ! End loop over soil layers |
|---|
| 1360 | |
|---|
| 1361 | |
|---|
| 1362 | |
|---|
| 1363 | ENDDO ! End loop over carbon pools |
|---|
| 1364 | ENDDO ! End loop over PFTs |
|---|
| 1365 | |
|---|
| 1366 | !! 3. Check mass balance closure |
|---|
| 1367 | IF (ld_doc) THEN |
|---|
| 1368 | !! 3.1 Calculate components of the mass balance |
|---|
| 1369 | pool_end(:,:,:) = zero |
|---|
| 1370 | |
|---|
| 1371 | !Ending carbon pool |
|---|
| 1372 | DO m = 1, nvm |
|---|
| 1373 | DO i = 1,ncarb |
|---|
| 1374 | DO l = 1, nbdl |
|---|
| 1375 | pool_end(:,m,icarbon) = pool_end(:,m,icarbon) + & |
|---|
| 1376 | ( carbon(:,i,m,l)* veget_max(:,m) ) |
|---|
| 1377 | ENDDO |
|---|
| 1378 | ENDDO |
|---|
| 1379 | ENDDO |
|---|
| 1380 | |
|---|
| 1381 | !Ending DOC pool |
|---|
| 1382 | DO m = 1, nvm |
|---|
| 1383 | DO i = 1,npool |
|---|
| 1384 | DO l = 1, nbdl |
|---|
| 1385 | DO j = 1, ndoc |
|---|
| 1386 | pool_end(:,m,icarbon) = pool_end(:,m,icarbon) + & |
|---|
| 1387 | ( DOC(:,m,l,j,i,icarbon) * veget_max(:,m)) |
|---|
| 1388 | ENDDO |
|---|
| 1389 | ENDDO |
|---|
| 1390 | ENDDO |
|---|
| 1391 | pool_end(:,m,icarbon) = pool_end(:,m,icarbon) + interception_storage(:,m,icarbon) |
|---|
| 1392 | ENDDO |
|---|
| 1393 | |
|---|
| 1394 | !WRITE(numout,*) " pool_start(:,m,icarbon) soil=", pool_start(:,4,icarbon) |
|---|
| 1395 | !WRITE(numout,*) " pool_end(:,m,icarbon) soil=", pool_end(:,4,icarbon) |
|---|
| 1396 | |
|---|
| 1397 | !! 3.2 Calculate mass balance |
|---|
| 1398 | ! Note that soilcarbon is transfered to other pools but that the pool |
|---|
| 1399 | ! was not updated. We should not account for it in ::pool_end |
|---|
| 1400 | check_intern(:,:,:,:) = zero |
|---|
| 1401 | check_intern(:,:,iatm2land,icarbon) = zero |
|---|
| 1402 | |
|---|
| 1403 | |
|---|
| 1404 | check_intern(:,:,iland2atm,icarbon) = -un * (resp_hetero_soil(:,:)+resp_flood_soil(:,:)) * & |
|---|
| 1405 | veget_max(:,:) * dt |
|---|
| 1406 | DO i=1,npool |
|---|
| 1407 | check_intern(:,:,ilat2out,icarbon) = check_intern(:,:,ilat2out,icarbon) - un * (DOC_EXP(:,:,irunoff,i,icarbon)+ & |
|---|
| 1408 | & DOC_EXP(:,:,iflooded,i,icarbon)+ DOC_EXP(:,:,idrainage,i,icarbon)) * veget_max(:,:) * dt |
|---|
| 1409 | ENDDO !i=1,npool |
|---|
| 1410 | check_intern(:,:,ilat2in,icarbon) = un * zero |
|---|
| 1411 | check_intern(:,:,ipoolchange,icarbon) = -un * (pool_end(:,:,icarbon) - & |
|---|
| 1412 | pool_start(:,:,icarbon)) |
|---|
| 1413 | |
|---|
| 1414 | |
|---|
| 1415 | closure_intern = zero |
|---|
| 1416 | |
|---|
| 1417 | DO i = 1,nmbcomp |
|---|
| 1418 | closure_intern(:,:,icarbon) = closure_intern(:,:,icarbon) + & |
|---|
| 1419 | check_intern(:,:,i,icarbon) |
|---|
| 1420 | ENDDO |
|---|
| 1421 | |
|---|
| 1422 | !! 3.3 Write verdict |
|---|
| 1423 | DO i = 1,npts |
|---|
| 1424 | IF (SUM(closure_intern(i,:,icarbon)) .GT. min_stomate .OR. & |
|---|
| 1425 | SUM(closure_intern(i,:,icarbon)) .LT. -min_stomate) THEN |
|---|
| 1426 | WRITE(numout,*) 'Error: mass balance is not closed in stomate_soilcarbon.f90 at pixel ', i |
|---|
| 1427 | WRITE(numout,*) ' Difference is, ', SUM(closure_intern(i,:,icarbon)) |
|---|
| 1428 | WRITE(numout,*) ' Vegetation is, ', veget_max(i,:) |
|---|
| 1429 | |
|---|
| 1430 | WRITE(numout,*) ' deposition, ', SUM(wet_dep_ground(i,:,icarbon)) |
|---|
| 1431 | WRITE(numout,*) ' deposition flood, ', SUM(wet_dep_flood(i,:,icarbon)) |
|---|
| 1432 | |
|---|
| 1433 | WRITE(numout,*) ' soilcarbon_input, ', SUM(SUM(soilcarbon_input(i,:,:,:,icarbon),DIM=2),DIM=2) |
|---|
| 1434 | |
|---|
| 1435 | WRITE(numout,*) ' DOC_EXP, ', SUM(SUM(DOC_EXP(i,:,:,:,icarbon),DIM=2),DIM=2) |
|---|
| 1436 | WRITE(numout,*) ' FLOOD_carbon_input, ', SUM(floodcarbon_input(i,:,:,icarbon),DIM=2) |
|---|
| 1437 | |
|---|
| 1438 | WRITE(numout,*) ' resp_hetero_soil(:,:), ', SUM(resp_hetero_soil(i,:)) |
|---|
| 1439 | WRITE(numout,*) ' resp_flood_soil(:,:), ', SUM(resp_flood_soil(i,:)) |
|---|
| 1440 | ENDIF |
|---|
| 1441 | ENDDO !i = 1,npts |
|---|
| 1442 | ENDIF |
|---|
| 1443 | |
|---|
| 1444 | !! 4 Writing history files |
|---|
| 1445 | |
|---|
| 1446 | CALL xios_orchidee_send_field("dry_dep_canopy",dry_dep_canopy(:,:,icarbon)/dt) |
|---|
| 1447 | CALL xios_orchidee_send_field("DOC_precip2canopy",DOC_precip2canopy(:,:,icarbon)/dt) |
|---|
| 1448 | CALL xios_orchidee_send_field("DOC_precip2ground",DOC_precip2ground(:,:,icarbon)/dt) |
|---|
| 1449 | CALL xios_orchidee_send_field("DOC_canopy2ground",DOC_canopy2ground(:,:,icarbon)/dt) |
|---|
| 1450 | ! CALL xios_orchidee_send_field("EXP_DOC_RUNOFF_ref",DOC_EXP(:,:,irunoff,islo,kk)+DOC_EXP(:,:,irunoff,ipas,kk)) |
|---|
| 1451 | ! CALL xios_orchidee_send_field("EXP_DOC_RUNOFF_lab",DOC_EXP(:,:,irunoff,iact,kk)) |
|---|
| 1452 | ! CALL xios_orchidee_send_field("EXP_DOC_DRAIN_ref",DOC_EXP(:,:,idrainage,islo,kk)+DOC_EXP(:,:,idrainage,ipas,kk)) |
|---|
| 1453 | ! CALL xios_orchidee_send_field("EXP_DOC_DRAIN_lab",DOC_EXP(:,:,idrainage,iact,kk)) |
|---|
| 1454 | ! CALL xios_orchidee_send_field("EXP_DOC_FLOOD_ref",DOC_EXP(:,:,iflooded,islo,kk)+DOC_EXP(:,:,iflooded,ipas,kk)) |
|---|
| 1455 | ! CALL xios_orchidee_send_field("EXP_DOC_FLOOD_lab",DOC_EXP(:,:,iflooded,iact,kk)) |
|---|
| 1456 | CALL xios_orchidee_send_field("interception_storage",interception_storage(:,:,icarbon)) |
|---|
| 1457 | CALL xios_orchidee_send_field("precip2canopy",precip2canopy(:,:)/dt) |
|---|
| 1458 | CALL xios_orchidee_send_field("precip2ground",precip2ground(:,:)/dt) |
|---|
| 1459 | CALL xios_orchidee_send_field("canopy2ground",canopy2ground(:,:)/dt) |
|---|
| 1460 | CALL xios_orchidee_send_field("runoff_forest",runoff_per_soil(:,2)/dt) |
|---|
| 1461 | CALL xios_orchidee_send_field("CLAY",clay(:)) |
|---|
| 1462 | CALL xios_orchidee_send_field("SOIL_pH",soil_pH(:)) |
|---|
| 1463 | CALL xios_orchidee_send_field("KD",Kd(:,:)) |
|---|
| 1464 | CALL xios_orchidee_send_field("POOR_SOILS",poor_soils(:)) |
|---|
| 1465 | IF (printlev>=4) WRITE(numout,*) 'Leaving soilcarbon' |
|---|
| 1466 | |
|---|
| 1467 | END SUBROUTINE soilcarbon |
|---|
| 1468 | |
|---|
| 1469 | END MODULE stomate_soilcarbon |
|---|
