广西公益林生态效益价值评价

为了揭示公益林的生态效益价值,促进政府和社会持续投资公益林建设,保障公益林经营事业的发展,笔者应用影子工程法、等效替代法、费用分析法、市场替代法等原理,对广西公益林的生态效益进行价值评价。结果表明:广西562.87万hm2公益林(森林和灌木)的主要生态效益价值为137.39亿元/a,其中,涵养水源效益价值69.25亿元/a,保育土壤效益价值15.72亿元/a,固碳制氧效益价值46.53亿元/a,净化环境效益价值4.81亿元/a,森林游憩价值1.08亿元/a。公益林生态效益价值是其经济价值(12.15亿元)的11.3倍,生态价值远大于经济价值。

Evaluation of Ecological Benefits of Public Welfare Forest in Guangxi

In order to explore ecological benefits of public welfare forest, promote government and society investing continually on it, and ensure development to management of public welfare forest, the anthor applies shadow engineering method, equal-effect substitute method, cost analysis method and market substitute method to evaluate the value of ecological benefits of Guangxi public welfare forest, to make value of ecological benefits of public welfare forest quantitatively. The valuation result shows that main ecological benefits value of Guangxi public welfare forest is estimated up to about 137.39 billion RMB annually, among which, (69.25) billion for value of conserving water resources, 15.72 billion for value of soil conservation and soil fertility, 46.53 billion for value of carbon sequestration and oxygen generation, 4.81 billion for value of cleaning environment, 1.08 billion for value of forest tourism. Totally, Value of ecological benefits of Guangxi public welfare forest is expected to 11.3 times as its economic value, which only 12.15 billion. That also means ecological value is far larger than economic value.