北京地区不同农田类型及种植模式的生态系统服务价值评估  

Ecosystem Services Valuation of Difference Croplands and Cropping Systems in Beijing Suburb

作　　者：唐衡[1] 郑渝[2] 陈阜[1] 杨立国[2] 张海林[1] 孔箐锌[1] 

机构地区：[1]中国农业大学农学与生物技术学院,北京10094 [2]北京市农业局,北京100029

出　　处：《生态经济》2008年第7期56-59,114,共5页Ecological Economy

基　　金：国家科技支撑计划(编号:2006BAD02A15);北京都市农业学科群项目(编号:XK100190553)

摘　　要：城郊农田生态系统是城市生态环境的重要保障之一。本文在借鉴前人方法的基础上,结合田间试验与农户调查,选择北京城郊农田生态系统的产品价值、调节大气、净化空气、消纳废弃物、净化污水、土壤保育、蓄水功能、景观功能、生物多样性等价值作为指标进行测算。结果表明:2005年北京郊区农田生态系统服务总价值为1757350万元/a。影响各类型农田及种植模式的生态系统服务价值的因素主要是生物量大小、生育期长短以及覆盖度等。Agro-ecosystem in the suburb is one of the important guarantees of urban ecosystem health. Base on the methods currently, survey and field experiments, we evaluation the ecosystem service through the value of production, atmosphere regulating, air purification, dung decomposition, water purification, soil conversation, water saving, landscaping and biodiversity. The result shows that the ecosystem services value of the croplands are： Total value of the croplands ecosystem services in Beijing Suburb in 2005 is 1757350 million yuan/a. The main factors affect the ecosystem services are output, net production, growth period and land cover.

关 键 词：生态系统服务 农田类型 种植模式 

分 类 号：F062.2[经济管理—政治经济学] S181[农业科学—农业基础科学]