Dynamic vegetation: Big leaf model to simulate photosynthesis rate, respiration, growth, litter fall, and mortality. Light, water, and nutrient limitations are considered.
Nitrogen limitation: Nitrogen (NH4 and NO3) competitions occur among roots, microbial immobilizers, nitrifier, denitrifier, and mineral surfacees. Nutrient limitation on vegetation activity depends on the consequence of such multi-consumer-multi-substrate competition network.
Co2 effects: Direct CO2 fertilization effect on photosynthesis as well as regulation effect on stomatal openness.
Light interception: One single canopy layer, consider sunlit and shaded leaves.
Phenology: Use evergreen, stress deciduous, temperature deciduous phenology depending on which plant functional type
Water stress: Water stress is approximated with BTRAN factor, which is an integrated factor of soil water deficit across all soil layers.
Heat stress: Heat inhibition function is used in photosynthesis calculation.
Evapo-transpiration approach: Ball-Berry conductance model
Root distribution over depth: vertical root distribution follows exponential decline function
Closed energy balance: closed
Coupling/feedback between soil moisture and surface temperature: coupled
Latent heat: Latent heat from evaporation and vegetation transpiration.
Sensible heat: Consider bare ground, snow, and vegetated surface sensible heats
How do you compute soil organic carbon during land use (do you mix the previous pft soc into agricultural soc)?: 17 PFTs shared one soil column.
Do you separate soil organic carbon in pasture from natural grass?: N/A
Do you harvest npp of crops? do you including grazing? how does harvested npp decay?: N/A
How do you to treat biofuel npp and biofuel harvest?: N/A
Does non-harvested crop npp go to litter in your output?: N/A