关键词: 生态敏感性评价, 城市开发边界, MCE-CA模型, 义乌市

Abstract: To investigate the ecosystem service values of various wetland types in Qingdao, this paper used metaanalysis to estimate the ecosystem service value levels of various wetland types on the basis of wetland ecosystem service value transfer model, and explored the influence factors and effectiveness of the model. The results showed that the regression coefficients of independent variables such as pollution prevention method, cost control method, ecological value method, water conservation, and erosion control were positive, which had positive effects on wetland value in Qingdao. However, the regression coefficients of independent variables such as shadow price method, carbon tax method, travel cost method, marshes, and wetlands area were negative, which had negative effects on wetland value. The values of various wetland types were in order of onshore and offshore wetland (3.29×10⁴ yuan·hm^-2) > river wetland (2.38×10⁴ yuan·hm^-2) > constructed wetland (2.27×10⁴ yuan·hm^-2) > swamp wetland (1.77×10⁴ yuan·hm^-2). Compared with 1997, the value of wetland ecosystem services decreased by 0.801 billion yuan in Qingdao in 2012. The results indicated that the evaluation methods of the ecosystem service value, different ecosystem services, and the wetland area were the important aspects affecting the wetland ecosystem service value. Ecosystem service values of different types of wetland were different in Qingdao. People’s attention and protection effort, local consumption level and government investment were the main reason affecting wetland ecosystem service value per area unit. Compared with 1997, the reduction of offshore and coastal wetland ecosystem service value was the main reason for the decreased wetland ecosystem service value in Qingdao in 2012. Our results indicated that metaanalysis was a feasible method to evaluate wetland ecosystem service value when human and financial resources were restricted or valuation data was lacking.

Key words: Yiwu City, boundary spaces of urban development, eco-sensitivity assessing, MCE-CA model