Opened 18 months ago

Last modified 18 months ago

#741 new defect

Make the length of the leaffall dynamic

Reported by: luyssaert Owned by: somebody
Priority: major Milestone: Not scheduled yet
Component: Biogeochemical processes Version: trunc
Keywords: Cc:

Description (last modified by luyssaert)

Adding a ipresenescence plant_status makes essentially that the parameter of ‘leaffall’, i.e., the length of defoliation almost useless. A more ecological sensible approach to simulate the defoliation length is to compare maintenance respiration with GPP, and defoliation speed should be in proportion with the deficit (i.e., GPP - Rm, Rm = maintenance respiration).

This needs literature study and careful parameterization.
Increased growing-season productivity drives earlier autumn leaf senescence in temperate trees. They show that the autumn senescence is inversely proportional to GPP (Fig 1).

Change History (1)

comment:1 Changed 18 months ago by luyssaert

  • Description modified (diff)
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