Dynamic vegetation: yes, bioclimatic limits and competition for light, water and nitrogen.
Nitrogen limitation: yes
Co2 effects: yes, Farquhar/Collatz photosynthesis
Light interception: big-leaf approach
Phenology: differentiation between evergreen (constant leaf coverage over the year), raingreen (maximum leaf coverage until water stress threshold) and summergreen (budburst and senescence controlled by base temperature, leaf cover increases with accumulated heat sum) trees
Water stress: influence on photosynthesis, allocation (roots/leaf), triggers leaf abscission in raingreen trees
Heat stress: aggregated degree-day sum over PFT-specific temperature base, only on boreal trees
Evapo-transpiration approach: PET: Priestley-Taylor (modified for transpiration)
Root distribution over depth: PFT-specific following Jobbagy & Jackson 2000
Closed energy balance: yes
Coupling/feedback between soil moisture and surface temperature: yes
Latent heat: yes
Sensible heat: yes, but only for soil temperature
How do you compute soil organic carbon during land use (do you mix the previous pft soc into agricultural soc)?: Upon land use conversion, mixing of nat. veg. soc and agricultural soc. Mixing of soc of different crops between crop seasons.
Do you separate soil organic carbon in pasture from natural grass?: Yes, pastures simulated as separate stands/tiles. Natural grasses grow together with trees on one nat. veg. stand/tile with shared soc.
Do you harvest npp of crops? do you including grazing? how does harvested npp decay?: For crops: harvest of storage organs and partial harvest of crop residues. For pastures: livestock grazing with prescribed livestock density.
How do you to treat biofuel npp and biofuel harvest?: No biofuels simulated in ISIMIP3a
Does non-harvested crop npp go to litter in your output?: Non-harvested crop biomass goes to litter.