ESTIMATION OF NET PRIMARY PRODUCTION OF KANSAI AREA IN JAPAN USING LANDSAT/ETM+ DATA

摘要

An new algorithm was developed for the estimation of net primary production. The algorithm needs a vegetation index VIPD obtained from multi-spectral reflectance data and some climate data. The validation of this algorithm should be carried out for vegetation of various types and climate area. In previous study, it is concluded that NPP estimated from Landsat/TM or ETM+ data agrees with the ground truth data for grass fields in Mongolia and cedar forest in Japan. This study concentrates paddy fields of Kansai Area in Japan and compared the estimated NPP with the ground truth data. As a result, it was clear that the estimated value is about a half of ground truth data.