Ecological security evaluation of Chaohu Lake basin based on attribute recognition model.

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Ecological security evaluation of Chaohu Lake basin based on attribute recognition model.

WU Kai-ya¹; ZHANG Li-bing²; JIN Ju-liang²; SUN Shi-qun³

¹School of Economics, Xiamen University, Xiamen 361005, Fujian, China;²College of Civil Engineering, Hefei University of Technology, Hefei 230009, China;³College of Natural Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China

Received:2006-09-01 Revised:1900-01-01 Online:2007-05-08 Published:2007-05-08

Abstract

Abstract: 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.

Key words: Quantificational index, SOM, DOC, δ¹³C, CPMI

WU Kai-ya¹; ZHANG Li-bing²; JIN Ju-liang²; SUN Shi-qun³. Ecological security evaluation of Chaohu Lake basin based on attribute recognition model.[J]. cje.

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Ecological security evaluation of Chaohu Lake basin based on attribute recognition model.

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