西北内陆典型流域水环境风险源识别研究

着重研究了风险源评价体系中行业类别、距离流域最短距离、距敏感目标流程等企业特性指标,构建了风险源识别体系。在各指标权重赋权方法方面,采用AHP法和熵权法组合赋权的新方法,建立了风险源指标的权重评价方法。应用模糊综合评价方法对西北内陆典型流域风险源进行了综合分析评价。初步建立起适合该流域水环境风险识别技术,为该流域的水环境保护提供有力的技术支撑。

Research of risk source recognition of water environment in typical river basin of northwest inland

The risk source identification focuses on the enterprise index such as industry category, the shortest distance from valley, away from the sensitive target process, and then constructs the risk source identification system. In the respect of weighting methods of index weight, the paper used new method witch is a combination improved analytic hierarchy process(AHP) and entropy value method to define the weight of each index and to build up weight evaluation method for risk source indicator. Using the fuzzy-based assessment method, the paper carried out comprehensive analysis and evaluation to typical watershed in northwest inland area and established the method of risk discern of water environment witch is fitted to the river basin. The method can provide strong technical support for water environment protection of the watershed.