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The Application of Evaluating Shanzai ReservoirrEutrophication Based on Entropy of the Multiple Goal Decision Making and Ideal Point

Wang Shanshan,Zhang Jiangshan(Institute of Environmental Science,Fujian Normal University,Fuzhou 350007,China)  
Multiple goal decision making-dealpoint is a brief valuation modle,which is used to environment science field.This paper combines the entropy weight with the specialist subjective weight to decide the synthetic weight,sufficiency considers objective factor and subjective factor,applying it to the model of multiple goal decision making and ideal point to establish shanzai reservoir eutrophication.The result indicate that 1998-2002 the eutrophication of shanzai reservoir separate is :best rich eutrophication、rich eutrophication、rich eutrophication、middle rich eutrophication、middle eutrophication.A comparision of the evaluation result by ideal point method with traditional multiple goal decision makingdealpoint,whose result is the same.it,and is the same to the fact.Simultaneity,it is more sensitive to attribute recognition theory and those of fuzzy membership function,illustrate the method is in reason and effective.
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