摘要
基于Landsat TM、HJ-1B多源多期卫星遥感数据,对辽河保护区1992 ～ 2009年的水域面积变化进行了动态监测,并进行了驱动力分析.结果表明：辽河保护区近20年来水域面积急剧萎缩,由于拦河建水库和泥沙淤积使水深变浅,径流量降低了51％.因此,社会因素是造成辽河保护区水域面积减少的最主要因素.
Based on the multi-sources and multi-periods remote sensing data from Landsat TM or HJ-1 B,the dynamic monitoring on the change of the water area of Liaohe River Conservation Area from 1992 to 2009 is made along with the analysis made on its driving force.The result shows that the water area of Liaohe River Conservation Area is sharply reduced in the recent 20 years; i.e.due to the constructions of the river-crossing reservoir and the sedimentation therein,the water depth becomes more and more shallow and the runoff is decreased by 51％.Therefore,the social factor is just the main factor to cause the reduction of the water area of Liaohe River Conservation Area.
出处
《水利水电技术》
CSCD
北大核心
2014年第1期47-51,共5页
Water Resources and Hydropower Engineering
基金
国家科技重大专项"辽河保护区水生态建设综合示范子课题辽河保护区河道综合修复关键技术"(2012ZX07202004-004)
关键词
水域变化
遥感监测
动态分析
辽河保护区
change of water area
remote sensing monitoring
dynamic analysis
Liaohe River Conservation Area
