achgls
commented
3 years ago These high values could be linked to the fact that wheat phenological growth is halted at the beginning of the simulation and early stages where LAI does increase last way longer than they should. LAI value would go on increasing for longer than it normally would. Hence why it would reach these high values. Photoperiod function for wheat could be bugged, hence why the complete stop in phenological growth. Might need to look into it. Either the function is bugged, or the "ppsen" parameter in crops.xlsx is irrelevant.
Setting filter "photoperiod_on_BD" = FALSE (just to check...) gives more reasonable output:
LAI for rainfed wheat over the course of 10 years
Although, we do observe high fluctuations and extreme values. Changing water regime from RAINFED to AUTOMATIC or FIXED irrigation has little to NO effect on these high values:
LAI for fixed irrigated wheat over the course of 10 years
It could have been water stress that created these extreme outlier values, hence why the change of water management.
LAI at its peak for each year and simulation case, highlighted values being too high
After fixing LAI rising exponentially to 15 000 + and fixing wheat plant density back to 280 because I had too low of a LAI, I now have abnormally high LAI again for wheat, about 2 to 10 times too high, depending on simulation cases.
Corresponding PLA (total leaf area by individual plant in cm-2) and MSNN (main stem node number for one individual plant):
PLA
MSNN
Corresponding cumulated thermal units / °Cd:
NOTE
Values seem nominal for chickpea. Wheat phyllocron (leaf appeareance on mainstem / °Cd) = 118, currently (in crops.xlsx) Differents colors on plots are different locations / cases / simulations, that occur over the same timeperiod. They are: Meknes, Morocco 🟢 Turgutlu, Turkey 🔴 Sidi Kacem, Morocco 🔵 Mauguio, France 🟡 Bizerte, Tunisia 🟣 Relevant to note: overall, Turgutlu is the simulation where water is the most abundant, and thus the less effect of water-stress on the crop.