Green space is a sort of land use types with certain ecological service functions.Taking TM/ETM+ images and MODIS-NDVI images in 1992,1999 and 2005 as the basic data,the quantitative changes and quality changes of green space in Beijing in recent years were studied by interpretation and classification.The relationship between green space and urban construction was studied.Through the field investigation and data analysis,the driving forces of green space changes were studied and corresponding suggestions were put forward.
