Impacts of Land Use Change on Net Primary Productivity in Fenhe River Basin

With the enhancement of the evolution of the natural environment and of the human activities on natural ecosystems, land use and land cover change (LUCC) has become an important factor affecting the ecosystem and environment. Study on land use and land cover change (LUCC) and its impact on the ecosystem and environment has become a research focus of ecology, geography and related disciplines. Net primary productivity (NPP) is not only the main factor of the quality status of terrestrial ecosystems, but also is the main factor determining the ecosystem carbon source / sinks and regulating ecological processes, so it plays an important role in global change and carbon balance. This paper was based on the Landsat TM remote sensing images in 2000 and 2010 to obtain the land use data in order to analyze the land use and land cover change (LUCC) in Fenhe River Basin in 2000 and 2010. Meanwhile, the MOD17A3 data of vegetationnet primary productivity was obtained to analyze the impacts of the land use and land cover change (LUCC) on net primary productivity (NPP). The results reflects the improving trend of ecosystem quality of farmland, woodland, grassland and unused land in Fenhe River Basin from 2000 to 2010.