为分析西辽河流域湿地变化状况，查明区内湿地演变规律及其变化的影响因素，以 2000 年的 ETM 数据和 2010 年的 CBERS 数据为数据源，在 RS 和 GIS 软件平台支持下，利用人机交互解译方法提取了西辽河流域 10 年内两期湿地信息，对湿地的时间与空间格局变化进行分析，并从地形、气象和人类活动等方面，对区内的影响湿地动态变化的因素进行了分析研究。结果表明: 10 年来西辽河流域天然湿地大量减少，人工湿地呈现增加趋势，湿地和非湿地类型间转化明显，水田转化率最高; 在研究区内，温度、降水和人口密度是影响湿地变化主要因素。

In order to analyze the changeble status of the wetland in western Liaohe River basin and find out the evolution rule and influenced factors of the wetland，the authors extract two phases wetland information of west- ern Liaohe River basin in man- machine interactive interpretation method in recent 10 years based on ETM data in 2000 and CBERS data in 2010，supported by the RS and GIS platforms． Then，the authors analyze the wetland pattern changes in time and spatial pattern，and study the influence factors of wetland dynamic change in this area from the aspects of terrain，climate and human activities． The result indicates that，in the ten years，while the nat- ural wetland of western Liaohe River basin reduced sharply，the constructed wetland tended to increase，and the conversion between wetland and non- wetland was clear，in which the conversion rate of paddy field was higher than others． Temperature，rainfall and population density are the main influencing factors on the wetland changes in the studied area．