Changes between Version 101 and Version 102 of DevelopmentActivities/ORCHIDEE-CNP

Timestamp:

2016-04-22T13:11:50+02:00 (8 years ago)

Author:

dgoll

Comment:

--

DevelopmentActivities/ORCHIDEE-CNP

@@ -32 +32 @@
 Thus, nutrient limitation on allocation will lead to accumulation of labile carbon as long as plants can sustain some leaves.
 
-To fix this: I re-introduced the burning of excess labile carbon following Zaehle & Post (2010). It helps to avoid the accumulation of labile carbon; but more tests are needed, in particular FLUXNET site scale evalution is needed.
-SL expressed concerns regarding the introduction of hard limits. Potential other solutions to the problem of accumulating labile C:
+To fix this: I re-introduced the burning of excess labile carbon following Zaehle & Post (2010). 
+It helps to avoid the accumulation of labile carbon and hardly affects the mean annual cycle of GPP  & LAI.
+
+SL expressed concerns regarding the introduction of hard limits. However, the whole reserve & labile C approach in O-CN is totally based on hard limits.
+Keeping the hard limit on reserve but removing it for labile is not consequent. 
+Potential other solutions to the problem of accumulating labile C:
 1. scale maintenance respiration with the deviation of the actual leaf C:N ratio from the optimal/minimal.
 2. down-regulate photosynthesis with increasing labile C stock. Sugar is osmotic active and mess up cell metabolism.
+For now, I work with the original O-CN approach of a hard limit. 
 
+[[Image(GPP_Hai.png)]]
 
 [[Image(BurnLabile.png​)]]