生态保护价值的距离衰减性——以三江平原湿地为例  

The effect of distance on the ecological conservation value: a case study of Sanjiang Plain Wetland

作　　者：敖长林[1] 陈瑾婷[1] 焦扬[1] 王静[1] 

机构地区：[1]东北农业大学管理科学与工程系,哈尔滨150030

出　　处：《生态学报》2013年第16期5109-5117,共9页Acta Ecologica Sinica

基　　金：国家自然科学基金资助项目(71171044)

摘　　要：应用二分式条件价值评估法对三江平原湿地生态保护价值进行定量评价。运用支付意愿函数模型构建双边界二分式CVM数据分析模型,应用生存分析中的参数回归模型建立支付意愿影响因素分析模型。建立具有距离变量及个人社会、经济属性变量的支付意愿函数,验证支付意愿具有"距离衰减性"。研究采用以面访调查为主、网上调查为辅的方式,进行支付意愿问卷调查,得出2010年三江平原湿地生态保护的人均支付意愿为134.582元/a,三江平原湿地的生态保护价值为33.412亿元/a。研究结论为政府相关政策的制定提供参考依据。The Contingent Valuation Method（CVM） is one of the most widely used methods to assess the values of natural resources and environmental goods.Through questionnaires,CVM induces people′s preferences and makes an expression of monetization;the induced value of Willingness to Pay（WTP） is based on a hypothetical market.The inducing technique or the questionnaire format used to derive the maximum WTP is an important subject among CVM research.A great variety of questionnaire formats have been developed and applied in practice,among which the Dichotomous Choice CVM is considered one of the most advanced methods nowadays.The open-ended double-bounded Dichotomous Choice questionnaire,which is universally applied in foreign literature,combines the advantages of Dichotomous Choice and open-ended questionnaire.It induces the respondents′ true WTP,reduces the deviation of assessment results,and thus makes the statistics results more accurate and reliable.In this study,with the open-ended double-bounded Dichotomous Choice CVM,we looked into the respondents′ WTP mainly based on the interview survey and supplemented by the online survey,aiming to evaluate the ecological conservation value of Sanjiang Plain Wetland and the respondents′ WTP to protect Sanjiang Plain Wetland ecology,and identify what factors influence their WTP. It is important to analyze what factors influence WTP in the related empirical studies.Researchers are continually attempting to expend the influential factors reflected by CVM.The spatial distance factor has now been gradually incorporated into the influential mechanism research of WTP in CVM.The respondents′ WTP and the distance between respondents and environmental resource that serves as the evaluation object has a negative relationship,that is,the WTP of the respondents is relatively lower if they are further away from the evaluation object.This phenomenon is called the ＂Distance Decay Effect＂.The distance factor is defined as the straight-line distance between the respondents an

关 键 词：条件价值评估法 双边界二分式 距离衰减性 支付意愿 

分 类 号：X171[环境科学与工程—环境科学]