水土保持通报2012，Vol.32Issue(6)：240-244,5.
茹河流域固原二期工程水土保持生态价值评价
Evaluating Ecosystem Services Value of Second Stage Project for Soil and Water Conservation in Guyuan Area of Ruhe Watershed
摘要
Abstract
In this study,we assessed the ecosystem service value of the second stage project of soil and water conservation deployed in Guyuan area of the Ruhe watershed according to the characteristics of ecosystems.The market value method,cost-alternative method,shadow-engineering method and opportunity-cost approach were applied to five indicators including soil conservation,water source conservation,carbon fixation and oxygen release,air cleaning and biodiversity conservation.The results showed that the ecosystem service value has increased by 852.93 million yuan since the project launched five years ago.The service of maintaining and improving soil quality contributed most to the total ecosystem value,accounting for about 48.86%.The service of water conservation contributed 30.16%,while carbon fixation and oxygen release and the other two accounted for 14.96%,3.7% and 2.31%,respectively.It is clear that the soil and water conservation measures played a significant role in environmental protection and soil erosion control in the Ruhe watershed.关键词
茹河流域/生态系统服务功能价值/效益评价Key words
Ruhe watershed/ecosystem service value/benefit evaluation分类
农业科技引用本文复制引用
王秀琴..茹河流域固原二期工程水土保持生态价值评价[J].水土保持通报,2012,32(6):240-244,5.基金项目
黄河水利委员会“黄河水土保持生态工程茹河流域治理工程”[黄治发（2006）10号,宁保发（2006）34号] （）
