Evaluation of Net primary productivity of terrestrial ecosystems in East China

Gross primary productivity (GPP) and Net primary productivity (NPP) are key components of the terrestrial carbon cycle. In this paper, an improved light utilization efficiency model was used to estimate GPP and NPP in East China from 2001 to 2008. This model included two sub models: GPP model and respiration model. The data input into the model including remote sensing data: MODIS production such as MOD09A1 (reflectance), MOD15A2 (FPAR) and MOD12Q1 (land cover); Meteorologic data; DEM and Soil texture Map. In aid of IDL, we achieve quick and efficient evaluation of different spatial and temporal scale. The mean of NPP from 2001 to 2008 is 443.90 gc·m-2·a-1 and standard deviation is 16.51.