Environmental quality comprehensive evaluation of tailing reservoir based on information entropy and fuzzy mathematics

The environment of tailing reservoir greatly affects the environment around it. In this paper, a fuzzy analytic hierarchy process model is established to evaluate the environmental quality of tailing reservoir. By using of information entropy, a new weight calculation method which can evaluate the quality of information given by evaluation specialists is given, to amend the index subjective weight given by specialists through analytic hierarchy process. The expert scoring method is used to express the environmental quality of each evaluation index, finally the environmental quality situation of tailing reservoir is gained. A case study indicates that the environmental quality comprehensive evaluation model based on information entropy and fuzzy mathematics could deal with the uncertainty in the analytic process, the evaluation results are scientific and rational, thus a new way is provided to research on the environmental quality comprehensive evaluation of tailing reservoir.