NOAA/AVHRR 画像データによる内モンゴルにおける半乾燥草原一次生産量の推定

抄録

By using NOAA/AVHRR multi-temporal data, the primary production was estimated in the semi-arid grassland of Inner Mongolia, China. Regression analysis was applied between ground truth biomass and vegetation index variables derived from NDVI, PVI, MSAVI and GEMI. The results were evaluated for vegetation index variable types, function types and atmospheric effects of AVHRR data. The results showed that the primary production of the region can be effectively estimated by using the quadratic-type function of MSAVI at the peak growth season, and MSAVI showed less sensitivity to the atmospheric effect.