基于集对分析的渝东南地区农业生态系统脆弱度评价  

Assessment of Agroecosystem Frangibility Degree Based on Set Pair Analysis(SPA) in Southeast of Chongqing

作　　者：王才军[1,2] 孙德亮[1] 

机构地区：[1]重庆师范大学地理与旅游学院,重庆400047 [2]重庆高校市级地理信息系统应用研究重点实验室,重庆400047

出　　处：《贵州农业科学》2011年第7期197-200,共4页Guizhou Agricultural Sciences

基　　金：国家社科基金项目"西部少数民族地区发展模式创新研究"(10XJY044);重庆市教委项目"三峡库区消落区土地利用优化模式及生态风险预警评价"(KJ100614)

摘　　要：为丰富和完善农业生态系统评价理论体系,同时定量评价渝东南地区农业生态系统的脆弱状况,为该地区的经济发展和生态环境保护提供参考,选择构建指标体系,借助集对分析法对黔江、石柱、秀山、酉阳和彭水5个县(区)农业生态系统脆弱度进行评价。结果表明,渝东南少数民族地区黔江、石柱、秀山、酉阳和彭水5个县(区)农业生态系统分别属于轻脆弱、中等脆弱、中等脆弱、轻脆弱和轻脆弱阶段;农业生态系统结构功能分别处于强脆弱、中等脆弱、强脆弱、强脆弱和强脆弱阶段。农业生态系统的自然本底脆弱,在注意生态环境保护的前提下,开发潜力较大。Agroecosystem of frangibility degree of five counties were evaluated by set pair analysis（SPA） and by the choosing of index system to enrich and complete the theoretical system for agroecosystem evaluation,quantitatively evaluate the frangibility of the agroecosystem,and provide the references for the economic development and environmental protection in southeast of Chongqing.The results showed that the frangibility degree of agroecosystem in the minority areas of southeast of Chongqing were at stages of mild fragile,mid fragile,mid fragile,mild fragile,and mild fragile in Qijiang,Shizhu,Xiushan,Youyang,and Pengshui,respectively.The frangibility degree of agroecosystem structure and function were in stages of very fragile,mid fragile,very fragile,very fragile,and very fragile,respectively.Although the natural basis of agroecosystem in these areas was weak,there was still great potential of development with the environmental protection.

关 键 词：少数民族 县域 农业生态系统 脆弱度 渝东南 

分 类 号：S181.6[农业科学—农业基础科学]