Evaluation of Water Environmental Quality in Feng Zi Jian Mining Area Based on Analytic Hierarchy Process

摘要

Owing to a large number of coal mining in Feng Zi Jian mining Area in Da Tong, it leads to many water environmental quality problems. According to the principle of AHP,it establishes hierarchical models, creates judgment matrix, counts its weight and maximum eigenvalue from the local to the whole, tests its consistent, analyzes the factors quantitatively which impact Feng Zi Jian mining Area water environmental quality, and makes status evaluation for the quality of water environment of the mine finally. The results show that, AHP is intuitive, effective and has an objective reality during the process of calculating the weights of each factor. It achieves the results of the evaluation with satisfactory.