soilassessment (version 0.3.0)

NPPmodel: A function for calculating net primary production using air temperature and mean rainfall amount

Description

This is an empirical function for deriving net primary production using climatic variables (mean temperature and rainfall amounts)

Usage

NPPmodel(rain,temperature,model)

Value

Net primary production (NPP) of dry matter in grams per square meter per year

Arguments

rain

total annual rainfall amount in mm

temperature

average annual air temperature amount in degrees Celsius

model

model for calculating net primary production. Included models in the function are Miami, Schurr, and NCEAS

Author

Christian Thine Omuto

Details

This function is based on empirical models for calculating annual net primary production (NPP) of dry matter

References

Schuur, E. A. G. 2003. Productivity and global climate revisited: the sensitivity of tropical forest growth to precipitation. Ecology 84:1165–1170

Lieth, H. 1975. Modeling the primary productivity of the world. Pages 237–264 in H. Lieth and R. H. Whittaker, editors. Primary productivity of the biosphere. Springer-Verlag, New York, New York, USA

Del Grosso, S., Parton, W., Stohlgren, T., Zheng, D., Bachelef, D., Prince, S., Hibbard, K., Olson, R. 2008. Global potential net primary production predicted from vegetation class, precipitation, and temperature. Ecology, 89(8): 2117-2126

See Also

carbonTurnover, RotCmoistcorrection

Examples

NPPmodel(800,23,"miami")
NPPmodel(800,23,"schuur")
NPPmodel(800,23,"NCEAS")