土地利用生态系统分析及服务价值估算——以北京市平谷区白各庄村为例

本研究以北京市平谷区白各庄村为例,详细分析了2002年土地利用生态系统的类型和特点,并进行生态系统服务价值核算,包括物质生产、吸收CO2、释放O2、水供给、废物处理和休闲娱乐,其总价值为1706.62万元,与农村经济总收入基本相等,其中吸收CO2的服务价值最大(72.57%),其次为释放O2价值(15.30%),物质生产服务价值仅占总价值的12.77%,水供给和休闲娱乐服务价值很小,而废物处理服务价值为负值。

Ecosystem analysis and service value evaluation of land use-A case study from Baigezhuang Village in Pinggu County,Beijing City

Taking Baigezhuang Village in Pinggu County,Beijing City as an example,the types and characteristics of land use ecosystem in 2002 were analyzed and the ecosystem service values including food production,CO_2 fixation,O_2 release, water circulation,residues treatment and recreation were calculated.The results show that the total value of(ecosystem) services is 17.0662 million yuan RMB, and approximately equals the total earning of village economy.The service value of CO_2 fixation is the biggest,accounting for 72.57%,and the next is the service value of O_2 release,accoun-ting for 15.30%.The service value of food production only accounts for 12.77% of the total service value.The service values of water supply and recreation are very small,and the service value of waste treatment is negative.