关中周边山地森林生态环境综合价值评估

Evaluation on Forest Ecology Environment Comprehensive Value of Periphery Mountainous Land in Guanzhong Region

以关中周边山地为研究区域 ,建立了山地森林生态环境的三级评价指标体系共 12项指标 ,运用定量评价方法对森林生态环境的经济价值、社会价值和生态价值进行了综合评估。研究结果表明 ,关中周边山地森林生态环境综合价值中经济价值、生态价值、社会价值分别占到 4 83%、94 2 0 %、0 82 % ,即森林最重要的价值是生态价值 ,而不是经济价值 ,说明了关中周边山地森林生态环境在维系和促进关中平原经济。

In traditional theory, the public value of ecology and society of forest ecosystem is often neglected. In practice,the free of public value of forest leads to unwise policy of managing forestry and destroying of forest resource. It is serious that the ecology system has being lost balance. In order to show the value of economy, ecology and society of forest ecosystem in periphery mountainous land and the potential value of “public land ', it is very important in theory and practice to evaluate the comprehensive value of forest ecology environment. The value of economy, ecology and society of forest ecosystem of periphery mountainous land in Guanzhong region was evaluated based on the three grade indexes system according to twelve indexes of mountain ecosystem environment. Based on inter-external progress and need of research, the paper mainly used the approaches of market price, cost output, shadow engineering, replacement cost and direct cost to evaluate the value of mountain ecosystem environment in Guanzhong.After comprehensive evaluated, total direct economy value is 86.76 million yuan (Chinese RMB) per year, of which, about 30.33 million yuan is of timber, about 1.42 million yuan of medicine plant, about 34.51 million yuan of the output of standing trees and other forest plants product, about 20.50 million yuan of forest tourism. The ecological value of forest eco-system is 1638.76 million yuan per year, of which, about 1364.05 million yuan is of water holding, about 1.45 million yuan of soil and water conservation, about 127.75 million yuan of fixed CO_2 and released O_2, about 136.29 million yuan of purification, about 7.37 million yuan of soil formation. Finally, the total social value is 14.26 million yuan per year, of which, about 2.97 million yuan is of biology controlled, about 1.12 million yuan of employment, about 10.17 million yuan of legacy. The final results showed that ratio of economical, ecological and social benefit of periphery mountainous land of Guanzhong was 4.83%, 94.20% and 0.82%. The most important value of forest was the value of ecology instead of the value of economy. Furthermore, the research also showed that the forest ecology environment in periphery mountainous land of Guanzhong had the great function to support and promote the sustainable development of Guanzhong plain. It is important theoretical and practical guiding significance to realize sustainable development to discusses the value of forest ecosystem of Periphery Mountainous Land.