基于Meta分析的中国湖沼湿地生态系统服务价值转移研究  

An empirical study of meta-analytical value transfer of lake and marsh ecosystem services in China

作　　者：张玲[1,2] 李小娟[1,2] 周德民[1,2] 张翼然[1,2] 

机构地区：[1]首都师范大学城市环境过程与数字模拟国家重点实验室培育基地,北京100048 [2]资源环境与地理信息系统北京市重点实验室,北京100048

出　　处：《生态学报》2015年第16期5507-5517,共11页Acta Ecologica Sinica

基　　金：林业公益性行业科研专项资助项目(201204201);北京市教委科研基地建设类项目资助

摘　　要：Meta分析价值转移方法作为资源价值评估的一种有效方法,在国外已经有大量的实证研究出现,但是在国内相应的实证研究非常稀少,有关该方法在湖沼湿地生态系统服务价值评估的应用研究还尚未见报道。通过收集有关中国湖沼湿地生态系统服务价值评估的实证研究文献的价值评估结果,建立价值转移数据库,应用Meta分析和多元回归分析方法构建中国湖沼湿地生态系统服务的Meta分析价值转移模型,并对该模型用于样本外价值转移的有效性做出评估,探讨Meta分析价值转移方法在中国湖沼湿地生态系统服务价值评估领域的可应用性及发展前景。研究结果表明:(1)在样本文献中,通常洪水调蓄和水源涵养服务是湖沼湿地提供的经济价值最高的生态系统服务,而水质净化服务的经济价值最低;(2)湖沼湿地面积、生态系统服务受益人口数量、不同生态系统服务之间的价值差异以及不同价值评估方法的使用会影响湖沼湿地生态系统服务价值的变化;(3)Meta分析价值转移模型用于样本外价值转移的有效性检验结果显示,样本外价值转移的转移误差范围在0.09%—234.61%之间,平均转移误差为19.99%,在自然资源价值转移的可接受误差范围内,因此Meta分析价值转移方法是评估湿地生态系统服务价值的一种可行且快速的方法。Wetlands are highly productive ecosystems and provide people with both direct and indirect benefits, which are called ecosystem services.Despite of the high value of the ecosystem services that wetlands provide to us, these continue to be degraded or lost due to the effects of intensive agrieuhural practices, irrigations, water extraction for domestic and industrial uses, urbanization, infrastructure and industrial development and pollution. Wetland ecosystem services have not been fully recognized or adequately quantified during the past economic and social development. Hence, accurate understanding and reasonably valuating ecosystem services can provide a scientific basis for the rational development of wetland resources. A series of valuation techniques, such as replacement cost method, contingent valuation method, and travel cost method and so on, have been used extensively to evaluate the value of wetland ecosystem services. Although the number of applications for such techniques to wetland ecosystem services is rapidly growing, site specific estimates are oftenunavailable. Reasons include time and budget constraints as well as technical challenges of conducting research in areas where wetlands are located. Value transfer techniques are an attractive option for policy-maker facing time and budget constraints when reliable primary valuations are absent. Value transfer makes use of results from previous empirical valuation studies （often termed study sites） and applies their value estimations to the policy site in question. In order to reduce the error inherent in value transfer, meta-analysis is commonly used to provide a more thorough and statistically valid value estimation to use in value transfer. There appear a few published studies on value transfer of ecosystem services in China. This paper presents an empirical study of the meta-analytical value transfer performed to evaluate economic values of China＇s lakes and marshes ecosystem services. The meta-analysis relied on a database consisting of 281

关 键 词：中国 湖沼湿地 生态系统服务 价值转移 META分析 

分 类 号：X171[环境科学与工程—环境科学]