LAND COVER DYNAMICS OF DIFFERENT TOPOGRAPHIC CONDITIONS IN BEIJING Impacts of mining on landscape pattern and primary productivity in the grassland of Inner Mongolia:a case study of Heidaigou open pit coal mining Spatiotemporal characteristics of urban land expansion in central area of Shanghai, China. Land use spatial distribution modeling based on CLUE-S model in the Huangshui River Basin Response of forest vegetation/land use change to hydrological Dynamics in Hongmenchuan Watershed of Beijing