Ecosystem service value assessment for constructed wetlands: A case study in Hangzhou, China

被引:113
作者
Yang, Wu [1 ]
Chang, Jie [1 ]
Xu, Bin [2 ]
Peng, Changhui [1 ,3 ]
Ge, Ying [1 ]
机构
[1] Zhejiang Univ, Coll Life Sci, Hangzhou 310058, Zhejiang, Peoples R China
[2] Zhejiang Gongshang Univ, Dept Publ Adm, Hangzhou 310018, Zhejiang, Peoples R China
[3] Univ Quebec, Dept Sci Biol, Inst Environm Sci, Montreal, PQ H3C 3P8, Canada
基金
中国国家自然科学基金;
关键词
Contingent valuation method; Cost-benefit analysis; Economic valuation; Shadow price; Shadow project approach; Willingness to pay;
D O I
10.1016/j.ecolecon.2008.02.008
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Based on a comprehensive analysis of various classifications of natural resource values, we summarized an ecological economic value system of constructed wetland (CW) ecosystems for treating eutrophic water. Using the CW located at the Hangzhou Botanical Garden as an example, the contingent valuation method (CVM) and shadow project approach (SPA) were applied to estimate the economic values of CW system ecosystem services. The CVM estimated a value of 800,000 yuan (yuan: Chinese Currency, 7.6 yuan=1 USD as of August, 2007) as the total economic value of the CW in a twenty year period. Meanwhile, the SPA calculated a value of 23.04 million yuan as the total economic value of the CW in a twenty year period. It is determined that compared to the CVM, the SPA provides a more approximate value of the true monetary value of the Hangzhou Botanical Garden CW. This study could fill the gap of knowledge and provide a benchmark when evaluating constructed ecosystem services and help policy makers to promote the development of constructed wetlands in China. (C) 2008 Published by Elsevier B.V.
引用
收藏
页码:116 / 125
页数:10
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