GROSS PRIMARY PRODUCTIVITY ESTIMATION OF DECIDUOUS BROADLEAF FOREST BY 3-PG MODEL COMPARING WITH MODIS IMAGE

摘要

In this paper, the parameter of 3-PG model is adjusted for Deciduous Broadleaf Forest to estimate Gross Primary Productivity (GPP). The key parameter used to adjust is the meteorological data as minimum, maximum and optimum temperature. The Flux Tower data from Hitsujigaoka, Hokkaido since 2001-2003 is collected for analyzing in this study. Then, GPP is calculated and validated with the observed GPP from Flux Tower data. Finally, the time series of obtained GPP result from 3-PG model is compared with MODIS GPP to find the relationship accordingly.