三峡库区(重庆段)森林水土保持服务功能价值研究

以三峡库区重庆段为研究对象,采用机会成本法、影子工程法、替代工程费用法等研究方法,核算了三峡库区重庆段的森林水土保持服务功能价值。森林生态系统服务功能中的水土保持服务功能研究结果表明:三峡库区重庆段森林水土保持服务功能总价值为14.802亿元/a,其中减少土地损失的价值为203万元/a、减轻泥沙淤积的价值为1196万元/a、土壤肥力保持价值为14.662亿元/a。为正确的核算三峡库区绿色GDP提供一定的借鉴意义。

A Study on the Valuation of Water and Soil Conservation Service Function of Forest Ecosystem in the Three Gorges Reservoir area of Chongqing

The forest ecosystem service function is the effectiveness and the natural ambient conditions of human survivable necessary formed and maintained during the course of the development of ecosystem.The paper takes the Three Gorges Reservoir area of Chongqing as a case,has studied in water and soil conservation service function of the forest ecosystem service function.It evaluates the valuation of water and soil conservation service function of forest ecosystem in the Three Gorges Reservoir area of Chongqing by using the method of opportunity-cost,shadow project,project Substitution and so on.The results indicate that the value amount to 1 480.41 million Yuan of which 2.25 million Yuan for land conservation,11.96 million Yuan for reducing the deposit of the mud and sand 1 466.20 million Yuan for the soil fertility.Provides the correct method to calculate Three Gorges Reservoir Region green GDP.