中文摘要：

在遥感调查和实地调查的基础上，综合运用资源经济学、生态经济学方法，针对北京大都市的特点建立北京湿地分类体系、生态系统服务功能价值指标体系和评价方法，对2009年北京市湿地生态系统服务功能价值进行了评估。结果表明：2009年北京市湿地生态系统服务功能价值为2137．31亿元，其中经济功能价值为33．99亿元，占总价值的1．59％；社会功能价值为1340．94亿元，占总价值的62．74％；生态功能价值为762．38亿元，占总价值的35．67％，反映了北京湿地生态系统在经济、社会、生态三方面多功能服务于首都经济社会发展和生态城市建设中的地位和作用，可为北京市湿地生态系统保护、恢复和重建决策提供科学依据。

英文摘要：

Wetland ecosystem and resources in Beijing have huge service function, and are very important in maintaining balance of ecosystem and urban ecological security. Because of change of globle climate change and population increaseing of population, area of Beijing wetlands is decreasing sharply, and water is heavily polluted heavily. Service function of wetland ecosystem is degrading by a large margin. Based on remote sensing survey and field investigations, this study has established the classification system, the index system framework and methods of evaluating the serving functions and value of wetland ecosystem in Beijing city with an integrated use of comprehensively applying resource economics and ecological economics methods and then evaluated, tThe service value of wetland ecosystem of Beijing in 2009 was evaluated. In the evaluation, the serving functions of wetland ecosystem were divided into economic service function value, social service funcion value and the ecological service function value. The total wetland area of Beijing in 2009 was 49921.48 hm2 and its total ecosystem service value was quantitatively estimated at 213.7.31 billion Yuan （Chinese RMB）, with. The 3.399 billion RMB of economic service function value, 134.094 billion RMB of social service funcion value and 76.238 billion RMB of ecological service function value. They respectively was 33.99 billion Yuan contributed 1.59%, 62.74% and 35.67% toof the total value., among which, fishery value was 10.47 billion Yuan, water supply value was 20.20 billion Yuan and pumped storage power value was 3.32 billion Yuan. The social service funcion value was 1340.94 billion Yuan contributed 62.74% of the total value, among which, culture and travel value was 297.76 billion Yuan, landscape added value was 1042.92 billion Yuan and scientific research and education value was 0.26 billion Yuan. The ecological service function value was 762.38 billion Yuan contributed 35.67%, among which, climate regulation value was 457.73 billion Yuan, water resources