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作 者:雷娜[1] 张宇清[1] 吴斌[1] 李志沛[1] 冯靖宇 陈作州[1]
机构地区:[1]北京林业大学水土保持学院,北京100083 [2]湖南省水利水电勘测设计研究总院,湖南长沙410007
出 处:《水土保持通报》2012年第5期97-102,共6页Bulletin of Soil and Water Conservation
基 金:国家林业局林业公益性行业科研专项项目"典型平原区生态安全林业保障体系构建机理及功效评价研究"(200804008)
摘 要:研究农田防护林生态系统服务功能的价值对于区域经济的发展和生态环境的保护具有重要意义。运用市场价值法、机会成本法、影子价格法等,对河南省2001和2005年农田防护林生态服务功能价值进行了核算。结果表明,2001和2005年农田防护林生态服务功能的总价值分别为1.04×1010元和1.46×1010元,各项生态服务指标的价值顺序为:保育土壤>农田防护林防护>生物多样性保护>固碳释氧>净化空气;生态服务的总价值年均增加1.53×109元,其中保育土壤的价值增加最大为9.94×108元,其余依次是农田防护林防护、生物多样性保护、林产品、固碳释氧、净化空气,增加价值分别为3.01×108,1.25×108,7.00×107,3.77×107,7.79×105元。因此,农田防护林具有的生态服务功能价值是巨大的,应该尽快建立生态服务市场补偿机制和完善生态服务功能价值评估方法,促进农田防护林从生态型向生态经济型转变。Evaluation of the farmland shelterbelt ecosystem service is of vital importance due to its practical application in regional economical development and ecological environment protection. In this case, farmland service function value of He' nan Province from 2001 to 2005 was evaluated by applying methods including market price, opportunity cost, and shadow price. Results showed that the total ecological service function value of the farmland in 2001 and 2005 were 1.04 X 10^10and 1.46 X 10^10 yuan, respectively. The ecological service function index values followed such a decreasing order, soil protection)crops yield incrementbiodversity protectionCO2 fixation and O2 release〉air purification. The increment of total ecological service was 1.53X10^9 yuan each year. The service of soil conservation increment value was the largest(9.94X 10^8 yuan), followed by soil protection(3.01 X 10^8 yuan), crops yield increment(1.25 X 10^8 yuan), biodiversity protection(7.00)K 107 yuan), CO2 fixation and 02 release(3.77X 10^7 yuan), and air purification(7.79X 10^5 yuan). Due to the fact that the ecological service function value of the shelterbelt is tremendous, it is suggested that ecological service market compensation mechanisms and perfected ecological service function valuated should be established as early as possible, so as to extend the farmland from an ecological style to an ecological and economical style.
分 类 号:S727.24[农业科学—林木遗传育种]
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