基于遥感的北京地区景观格局演变研究

利用ERDAS遥感解译软件对北京地区1984年、1997年Landsat TM数据以及2002年ETM数据进行解译处理,分析并利用FRAGSTATS软件计算景观类型、景观二个等级水平的指数,对北京市景观格局变化进行分析。结果表明:1997年至2002年城镇建设用地面积增加了近一倍,由于城市化造成农田损失速度加快;研究区内景观类型斑块面积差异较大,1984年到2002年的景观变化并没有造成景观类型等级构成的明显变化;平原区景观类型破碎化速度加快,需要加强土地利用规划和管理。

Landscape Pattern Dynamics Study Based on Remote Sensing Data in Region of Beijing

Three phases of the Thematic Mapper imageries in 1984-10,1997-05 and 2002-05 were interpreted through ERDAS.And the landscape indices on class,landscape levels were calculated using FRAGSTATS software.The analysis on the changes of Beijing landscape pattern indicates that the urban area increased about two times,especially during 1997~2002,and farmland decreased much more as a result of urbanization during 1997-2002.There were much difference in patch area of landscape types in Beijing,but it didn't cause obvious change in rank of landscape types in 1984 to 2002.Fragmentation of the landscape types in plain picked up,and it need strengthen layout and management of land use.