北京山区沟域生态承载力评价的研究.doc

北京山区沟域生态承载力评价的研究 摘要：在北京山区沟域生态承载力内涵的基础上，从实现沟域经济社会可持续发展及经济与环境协调发展的角度，从生态弹性指数、资源环境承载指数、资源环境压力度等方面，构建了北京山区沟域生态承载力评价指标体系，并应用综合评价法构建了评价模型。2010年韭园沟域生态弹性指数得分71.2，属较稳定水平；资源与环境承载力得分为59.6，属中等水平；资源环境承压度得分72.2，处于较高压水平；生态承载力得分为67.7，属二级水平。依据评价结果，提出了推动韭园沟域可持续健康发展的对策建议。关键词：生态承载力；沟域经济；综合评价；北京中图分类号：F062.2 文献标识码：A 文章编号：0439-8114（2012）23-5332-04Evaluation of Ecological Carrying Capacity in Beijing Mountainous Valley Areas： A Case Study of Jiuyuan Valley Region in Mentougou DistrictJIANG Cui-hong1，LI Hong1，CAO Jun1，YU Zhen-feng2（1.Institute of Integrated Development of Agriculture， Beijing Academy of Agricultural and Forestry Sciences， Beijing 100097， China；2. Hekou Branch of Dongying Bureau for Land and Resources of Shandong Province， Dongying 257200， Shandong， China）Abstract： Based on the connotation of ecological carrying capacity， from the standpoint of realizing the coordinated development of economics and environment， the comprehensive evaluation index system for mountainous valley areas in Beijing was built from the aspects of ecosystem elasticity level，bearing capacity and pressure index of environment and resources. And the evaluation mode was constructed using comprehensive evaluation method. The ecosystem elasticity index of Jiuyuan valley region in 2010 was stable （71.2）. The index of carrying capacity of resource and environment reached medium level（59.6）. The index of carrying capacity pressure was at relatively high level（72.2）. The carrying capacity of the area was 67.7， belonging to the secondary level. Furthermore， corresponding advices for promoting sustainable and healthy development of Jiuyuan valley region were put forward.Key words： ecological carrying capacity； mountainous valley areas economics； comprehensive evaluation； Beijing沟域经济是北京市在农业区域经济、流域经济基础上结合北京山区农业发展基础与特点提出的崭新概念[1，2]。作为山区的重要组成部分，沟域地区是首都宜居城市建设的坚实生态屏障，是北京可持续发展的重要资源支撑，是环境友好型的特色产业[3，4]。目前，多个区县沟域经济试点已经进行了成功的探索和实践，为京郊山区的发展增添了新的亮点。如何实现沟域社会、经济、生态环境可持续协调发展，全面掌握北京山区沟域生态环境及资源现状，为建设北京山区沟域重要生态功能保护区提供科学决策依据，对北京山区沟