RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2007, Vol. 16 >> Issue (2): 256-256.

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APPLICATION OF GIS AND FUZZY SIMILARITY NEARNESS DEGREE IN  EVALUATION OF FLOOD CONTROL RESETTLEMENT AREAS 

LI Fawen1|FENG Ping1|ZHANG Xingnan2   

  • Received:2005-12-07 Revised:2006-03-14 Online:2007-03-20

Abstract:

In combination with the concept of similarity nearness degree, fuzzy similarity nearness degree matterelement model was applied to evaluate the flood control evacuation resettlement area projects based on the fuzzy matterelement analysis. According to GIS in flood disaster evacuation system, the projects that satisfy some limited conditions were selected through the overlay algorithm of hierarchical maps in GIS, with the evaluation efficiency improved. AHP and entropy method were combined together as synthetical evaluation index, which overcame the problem of dependability produced by single method in practice. The model was applied to evaluate the flood disaster evacuation resettlement area in Changxingdao Island of Shanghai, and a good effect was observed. The evaluation model will then serve as a scientific base for decision making in flood control evacuation.

Key words: matter element model, similarity nearness degree, weight

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