生态系统服务价值的生态区位修正方法——以北京市为例  

The ecological location correction of ecosystem service value:a case study of Beijing City

作　　者：唐秀美[1,2] 陈百明[1] 路庆斌[3] 韩芳[1,2] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院研究生院,北京100049 [3]中国环境科学研究院,北京100012

出　　处：《生态学报》2010年第13期3526-3535,共10页Acta Ecologica Sinica

基　　金：国家科技支撑计划子课题(2008BAB38B02-3)

摘　　要：生态系统服务价值评估是当前生态经济学和环境经济学的研究热点和焦点,生态区位是影响生态系统服务价值的重要因子。以北京市为例,对北京市进行生态区位的划分,遵循资源稀缺性原理,将不同生态区位赋予不同的生态区位系数,并以北京市1980年、1995年和2000年土地利用图为例,以生态区位系数对北京市用地类型的生态服务价值进行修正,以体现不同生态区位单位面积生态系统服务价值的不同。研究得到了北京市3期土地利用单位面积生态系统服务价值分布图。分析发现:北京市的生态系统服务价值组成中,水田、有林地、灌木林和水体的生态系统服务价值占的比重较高;各生态区位生态系统服务总价值从城区到近郊平原区到近郊半山区到远郊山区依次增加;从1980年到1995年,北京市的生态系统服务价值减少了1.21×107元,而且各生态区位的生态系统服务价值也大都减少;从1995年到2000年,北京市的生态系统服务价值有所提高,但与1980年相比还是减少了3.07×106元。The evaluation of ecosystem service value is the hotspot of ecological economics and environmental economics.Ecological location is one of important factors that influence the ecosystem service value.This paper took Beijing City as an example to conduct the research of ecological location correction of ecosystem service value.According to the resource scarcity theory,this paper plotted out the ecological location and assigned each ecological location a coefficient.Based on these coefficients,this research modified ecosystem service value of main types of land cover in Beijing,obtained from land use thematic may of 1980,1995 and 2000,and gained the distribution of the value of ecosystem functions in Beijing in the three periods.The result showed that,the ecosystem service value of paddy field,forested land,shrub and water body dominate the whole ecosystem service value.The total ecosystem service value of each ecological location was increasing with the increase of the distance away from urban region.Form 1980 to 1995,there is decline in ecosystem service value of each ecological location,with a decrease of.21×107 Yuan in the whole ecosystem service value.Form 1995 to 2000,the whole ecosystem service value increased,but the value of 2000 is less than that of 1980,with a decrease of 3.07×106 Yuan.

关 键 词：生态系统服务 价值 生态区位 修正 北京市 

分 类 号：X171[环境科学与工程—环境科学]