西宁市城市植被生态系统服务功能价值研究  

Economic Value of Urban Vegetation Ecosystem Services:A Case Study in Xining

作　　者：苏茂新[1] 陈克龙[1] 李双成[2] 苏旭[1,3] 卢京花[4] 

机构地区：[1]青海师范大学生命与地理科学学院,青海西宁810008 [2]北京大学环境学院,北京100871 [3]中国科学院西北高原生物研究所,青海西宁810008 [4]吉林师范大学旅游与地理科学学院,吉林四平136000

出　　处：《环境科学与管理》2010年第5期138-142,共5页Environmental Science and Management

基　　金：国家科技支撑项目:生物多样性对气候变化的响应研究(2007BAC03A08-5);973项目:"青藏高原环境变化及其对全球变化的响应与适应对策"(编号:2005CB422000)

摘　　要：以西宁市为例,运用生态经济学原理和方法对城市植被生态系统服务功能进行评估,结果表明,2007年西宁市植被生态系统服务功能价值为2 306.82×106元。西宁市不同类型植被生态系统的价值排序为:森林>耕地>草地>园地,各项生态服务价值大小依次为:固碳释氧>净化环境>生物多样性保护>调节气候>涵养水源>原材料生产>保持土壤>食物生产>休闲娱乐,各植被类型生态服务价值的弹性系数都小于1,林地和园地的变化对生态服务价值变化起到放大作用。Based on research progress on economic value of ecosystem, taking Xining for instance, to analyze the urban vegetation ecosystem service. The result showed that the total value is ￥ 2 306. 82 million in 2007. The value order per ha for the ecological service and their production is forest 〉 farmland 〉 grassplot 〉 garden plot, the service of fixing carbon and releasing oxygen is the largest, followed by that of purifying environment, biological diversity, climatic regulation, water conservation, material production, food supplication, soll conservation and recreation. The calculation also indicates that the sensitivity coefficients are all inelastic. According to the calculation, the change of forest and garden plot area acreage magnifies the change of ESV.

关 键 词：生态系统服务功能 经济价值评估 城市植被 西宁市 

分 类 号：X171.1[环境科学与工程—环境科学]