基于利益相关者的LUCC生态风险研究——以延河流域为例
收稿日期: 2009-08-01
修回日期: 2010-01-01
网络出版日期: 2010-04-24
基金资助
国家科技部科技支撑项目(2006BAD20B05);中国科学院知识创新工程重要方向项目(kzcx2-yw-421).
Ecological Risk Analysis of LUCC in Relation to Stakeholders
Received date: 2009-08-01
Revised date: 2010-01-01
Online published: 2010-04-24
采用生态服务价值的大小代表生态服务功能的强弱,以生态系统服务功能理论为基础,以土地利用/覆被变化导致的生态系统服务功能下降作为LUCC生态风险,分别针对土地利用的各利益相关者——土地的所有者或经营者(个人、社区和国家),定量分析各利益相关者在土地利用/覆被变化的背景下所承受的生态风险.研究表明,由于土地利用/覆被变化的因素,延河流域2000-2006年间生态服务功能总体上升了28.91%,这主要归功于延河流域实施的退耕还林还草措施.对LUCC的不同利益相关者进行分析的结果表明,2000-2006年间,国家、社区和个人的生态服务功能均有所增强,增加值分别为34.71%、33.64%、14.57%;它们所面临的主要生态风险是,个人在本区域获取食物供应的能力下降了5.71%,国家在生物控制方面的能力下降了24.56%.
冉圣宏,谈明洪,吕昌河 . 基于利益相关者的LUCC生态风险研究——以延河流域为例[J]. 地理科学进展, 2010 , 29(4) : 439 -444 . DOI: 10.11820/dlkxjz.2010.04.008
The ecological services value is one of indexes to measure all services functions of ecosystem. In this paper, the value is employed to express the effect of the ecological services function. On the basis of the theory of ecosystem services function, the decrease of the ecosystem services function caused by land use/cover change (LUCC) is regarded as ecological risk in this paper. Then, a quantitative analysis is used to examine ecological risks that the various stakeholders may face in the context of LUCC. The stakeholders mainly refer to the land owner or the operator (individual, community and country) in this study. The research shows that, during the period of 2000-2006, the service function values had increased 28.91% in the Yan River basin, mainly due to the implementation of the policy of grain for green. The analysis designed for different stakeholders in the context of LUCC indicates that the ecological services values for the individual, community and country were increased by 34.71%, 33.64%, 14.57% between 2000 and 2006, respectively. The main ecological risks include two aspects. One is that the capacity of obtaining foods for individuals was decreased by 5.71%, and the other is that the biological control for the country dropped 24.56% during the same period.
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