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[1]ZHOU Xiao-wei,WANG Li-ping,LI An-qiang,et al.Model of the Water-eroded Desertification Quality Fuzzy Assessment Based on Maximum Entropy[J].Research of Soil and Water Conservation,2008,15(01):145-147.

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Model of the Water-eroded Desertification Quality Fuzzy Assessment Based on Maximum Entropy

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 15 Number of periods: 2008 01 Page number: 145-147 Column: Public date: 2008-02-20

Title:: Model of the Water-eroded Desertification Quality Fuzzy Assessment Based on Maximum Entropy

Author(s):: ZHOU Xiao-wei¹, WANG Li-ping¹, LI An-qiang², ZHANG Yan-ke¹; 1. Research Institute of Water Resources and Hydro-Electric Engineering, University of Energy and Power Engineering, North China Power University, Beijing 102206, China;
2. The State’s Key Laboratory of Water Resource and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China

Keywords:: water-eroded desertification; uncertainty; fuzziness; shannon entropy; maximum entropy principle; evaluation method

CLC:: S157.1

DOI:: -

Abstract:: Based on the Principle of Maximum Entropy and the concept of relative membership degree in the theory of fuzzy set, through considering the complexity and uncertainty of land ecology system, as well as defining the difference attributed by generalized weighted distances between soil samples and standard samples, a Fuzzy Assessment model based on Maximum Entropy is promoted.A concrete example, which studies on the five indices, including cutting density, slope, soil thickness, soil organic matter content, and vegetation to show the optimum degree of water-eroded desertification was given in detail.Through comparison with the results of the model only considering fuzziness, the results derived from the present models has smaller Shannon entropy, namely the cascade decision making has less uncertainty.

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