构造盆地
层次分析法
秩(图论)
分类
地理
生态学
环境科学
环境资源管理
计算机科学
地质学
工程类
数学
运筹学
生物
地貌学
数据库
组合数学
摘要
By using AHP weight method and attribute recognition model, a comprehensive ecological security evaluation of Chaohu Lake basin and its secondary appraisal units was made, aimed to build an efficient model for basin ecological security evaluation. The results indicated that the ecological security level of Chaohu Lake basin declined in the sequence of Hefei, the basin as a whole, Juchao, Wuwei, Hexian, Hanshan, Shucheng, Lujiang, Feidong, and Feixi. Among them, Hefei and Feixi were in grades Ⅳ and Ⅰ, respectively, and other districts all fell into grade Ⅱ. Because of its explicit meanings and simple computational process, this model could sort and rank the test objects according to their ecological security level, and be applied to the comprehensive evaluation of other ecological systems.
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