Vegetation cover maps of three different years (e.g. 1989, 1997 and 2003) were derived from the Landsat TM images for the city of Shanghai.

• 通过TM影像解译，获取上海市1989、1997和2003年共3个时期的植被分布，构造植被变化轨迹，分析轨迹的空间格局；