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北京山区小流域生态经济效益评价——以雁栖河小流域为例

肖辉杰1**,魏自刚2,王庆2,朱晓博1   

  1. 1北京林业大学水土保持学院, 北京 100083; 2北京市怀柔区水务局, 北京 101400)
  • 出版日期:2012-12-18 发布日期:2012-12-18

Evaluation on the eco-economic benefits of small watershed in Beijing mountainous area: A case of Yanqi River watershed.

XIAO Hui-jie1, WEI Zi-gang2, WANG Qing2, ZHU Xiao-bo1   

  1. (1College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China; 2Huairou Bureau of Water Affairs, Beijing 101400, China)
  • Online:2012-12-18 Published:2012-12-18

摘要: 基于生态经济协调发展理论,从北京市怀柔区雁栖河小流域的生态、经济、社会子系统中选取13个评价指标,采用梯形函数对各指标评价值进行归一化,并通过层次分析法确定各指标权重,在此基础上采用加权综合指数法对流域生态经济效益进行评价.结果表明: 2004—2011年,雁栖河小流域生态、经济、社会效益均有所提高,其中,生态效益的增幅最大,其效益评价值由2004年的0.210提高到2011年的0.255,增幅为21.5%;系统生态经济效益综合评价值由0.734提高到0.840,增幅为14.2%.目前,流域已达到高级生态系统阶段,系统处于良性循环,流域内生态、经济、社会协调发展.

关键词: 协调发展, 评价指标, 加权综合指数法, 北京市怀柔区, 高级生态系统

Abstract: Based on the theory of harmonious development of ecological economy, a total of 13 evaluation indices were selected from the ecological, economic, and social sub-systems of Yanqi River watershed in Huairou District of Beijing. The selected evaluation indices were normalized by using trapezoid functions, and the weights of the evaluation indices were determined by analytic hierarchy process. Then, the ecoeconomic benefits of the watershed were evaluated with weighted composite index method. From 2004 to 2011, the ecological, economic, and social benefits of Yanqi River watershed all had somewhat increase, among which, ecological benefit increased most, with the value changed from 0.210 in 2004 to 0.255 in 2011 and an increment of 21.5%. The eco-economic benefits of the watershed increased from 0.734 in 2004 to 0.840 in 2011, with an increment of 14.2%. At present, the watershed reached the stage of advanced ecosystem, being in beneficial circulation and harmonious development of ecology, economy, and society.

Key words: harmonious development, evaluation index, weighted composite index method, Huairou District of Beijing, advanced ecosystem.