基于双边界二分式CVM的天津七里海湿地农户生态补偿意愿研究

Willingness of the Local Farmers to Accept Ecological Compensation in Qilihai Wetland

湿地生态系统损失的经济学评估及生态补偿意愿研究一直备受国内外学者的关注。运用双边界二分式条件价值评估法(contingent valuation method,CVM)引导技术,计算七里海湿地周边农户对生态补偿措施的受偿意愿,定量估算七里海湿地的生态损失,采用logistic模型识别受偿意愿的主要影响因素。结果表明:湿地周边农户的年平均受偿意愿为23 896.65元·hm^(-2),造成的年总生态损失为12 922.11万元;家庭收入、是否有非农收入或养老保险以及对湿地现状的认知水平是影响受偿意愿的主要因素,地方依恋是影响农户抗拒失地的主要原因。

The topics of economic assessment of damages to wetland ecological systems and willingness of the farmers to accept ecological compensation have long been hot spots for researchers at home and abroad. In this study the doublebounded contingent valuation method was used to evaluate willingness of the farmers to accept ecological compensation and quantitatively estimate ecological losses of the Qilihai wetlands incurred by ' reclamation of farmland,artificial division and over-exploitation',and the logistic model was to identify major factors affecting willingness of the local farmers to accept compensation. Results show that the annual mean compensation the local farmers are willing to accept is 23 896. 65 yuan·hm^(-2)·a^(-1),and the annual total ecological loss 129. 221 1 million yuan·a^(-1); Household income,non-farming income,pension and knowledge about status of the wetlands are the main factors affecting willingness of the farmers,land attachment is the major cause of the local farmers resisting loss of land.