【摘要】 松花坝水库是昆明市最大的城市用水供应水源,其水量与水质变化直接关系到昆明市的供水安全,水源保护区土地利用变化是引起松花坝水库水量与水质变化的主要原因。利用1992年的Landsat-TM和2000年的Landsat-ETM+两期遥感影像资料,对松花坝水源保护区土地利用的时空变化进行分析,发现1992~2000年草地、耕地面积明显减少,休闲园地、湿地面积明显增加,森林、建筑用地面积稍有减少,建筑用地与休闲园地集聚程度增加。最后进行了驱动力分析,提出了相应的水源地保护建议。更多还原

【Abstract】 Songhuaba reservoir is the biggest water fountain of Kunming City,the change of its water quantity and water quality will direct affect the water supple of Kunming City,Land Use Changes of the Water source Protected District is mostly reason of the change of its water quantity and water quality at Songhuaba reservoir.In the article,By Using the Landsat-TM of 1992 and Landsat-ETM+ of 2000,to analyze the Spatio-temporal Changes of land use in the Water source Protected District in Songhuaba,found at the time 1992 to 2000,the grassplot and infield have evidence reduce,relax garden and everglade have evidence increase,forest and build ground have slightly reduce,build ground and relax garden centralize degree increase.Finally,it has carried on the driving influence analysis,and provided the relevant advice for water source protect.更多还原