Fuzzy Comprehensive Evaluation of Ecological Risk Based on Cloud Model: Taking Chengchao Iron Mine as Example

2017 International Conference on Advanced Environmental Engineering

生态环境科学

Ruan, Jinghua^1 ; Chen, Yong^1,2 ; Xiao, Xiao^1 ; Yong, Gan^1 ; Huang, Ranran^1 ; Miao, Zuohua^1,2

School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan

430081, China^1

Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan

430081, China^2

关键词: Cloud modeling;    Ecological problem;    Ecological risks;    Evaluation index system;    Fuzzy comprehensive evaluation;    Fuzzy comprehensive evaluation method;    Fuzzy entropy;    Inherent risk;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/111/1/012005/pdf
DOI  :  10.1088/1755-1315/111/1/012005

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Aimed at the fuzziness and randomness during the evaluation process, this paper constructed a fuzzy comprehensive evaluation method based on cloud model. The evaluation index system was established based on the inherent risk, present level and control situation, which had been proved to be able to convey the main contradictions of ecological risk in mine on the macro level, and be advantageous for comparison among mines. The comment sets and membership functions improved by cloud model could reflect the uniformity of ambiguity and randomness effectively. In addition, the concept of fuzzy entropy was introduced to further characterize the fuzziness of assessments results and the complexities of ecological problems in target mine. A practical example in Chengchao Iron Mine evidenced that, the assessments results can reflect actual situations appropriately and provide a new theoretic guidance for comprehensive ecological risk evaluation of underground iron mine.