Changes between Version 78 and Version 79 of Documentation/TrunkFunctionality4

Timestamp:

2021-02-11T12:01:28+01:00 (3 years ago)

Author:

luyssaert

Comment:

--

Documentation/TrunkFunctionality4

@@ -102 +102 @@
 Previously there was a functional link between C and N-allocation and the hydraulic architecture of a plant because both approaches used the same parameter k_root. In ORCHIDEE-CAN k_root described the conductivity of the fine roots and the soil. In ORCHIDEE trunk this joined conductivity has been split in a fine root conductivity and a soil to root conductivity. Allocation should make use of both conductivities but soil to root conductivity cannot be easily calculated when needed in the allocation. This is subject to future developments. Accounting for the soil to root conductivity in the allocation would imply an adaptation of plant growth to its environment.
 
-Crown area is calculated from tree diameter by making use of '''pipe_tune1''' and '''pipe_tune_exp_coeff'''. Since r6933, '''pipe_tune1''' and '''pipe_tune_exp_coeff''' can be calculated as a function of respectively '''pipe_tune2''' and '''pipe_tune3'''. This has became the default setting. For that reason '''pipe_tune1''' and '''pipe_tune_exp_coeff''' are undefined but the parameters '''crown_to_height''' and '''crown_to_height_exp''' need to be set. If one wants the crown diameter to be 66% of the tree height, '''crown_to_height''' needs to be set to 0.66 and '''crown_to_height_exp''' to 2. As long as '''crown_to_height_exp''' equals to 2, '''crown_to_height''' should range between 0 and 0.99. If a different values for '''crown_to_height_exp''' it should be checked that the crown diameter never exceeds the tree height as this will make the model crash with a clear error message.   
+Crown area is calculated from tree diameter by making use of '''pipe_tune1''' and '''pipe_tune_exp_coeff'''. Since r6933, '''pipe_tune1''' and '''pipe_tune_exp_coeff''' can be calculated as a function of respectively '''pipe_tune2''' and '''pipe_tune3'''. This has became the default setting. For that reason '''pipe_tune1''' and '''pipe_tune_exp_coeff''' are undefined but the parameters '''crown_to_height''' and '''crown_to_height_exp''' need to be set. If one wants the crown diameter to be 66% of the tree height, '''crown_to_height''' needs to be set to 0.66 and '''crown_to_height_exp''' to 2. As long as '''crown_to_height_exp''' equals to 2, '''crown_to_height''' should range between 0 and 0.99. If a different values for '''crown_to_height_exp''' it should be checked that the crown diameter never exceeds the tree height as this will make the model crash with a clear error message.
+
+Allocation is a function of the plant status (see table).
+|| Process || Plant_status || Code || comments ||   
+|| Fresh GPP destination || ibudbreak & icanopy ||  ||  ||
+||  || ipresenescence || || ||
+||  || isenescent || || ||
+||  || idormant || || ||
+|| Calculating bm_alloc_tot || ibudbreak & icanopy ||  ||  ||
+||  || ipresenescence || || ||
+||  || isenescent || || ||
+||  || idormant || || ||
+|| Maintenance Respiration (Rm) || ibudbreak & icanopy ||  ||  ||
+||  || ipresenescence || || ||
+||  || isenescent || || ||
+||  || idormant || || ||
+|| Rebalance between reserve and labile pool || || || ||
+||  || || || ||
+||  || || || ||
+||  || || || ||
+||  || || || ||
+