德泽水库水质水环境现状及演变特征分析

Analysis on the Current Situation and Evolution Characteristics of Water Quality and Water Environment in Deze Reservoir

根据模糊数学原理,建立德泽水库地表水环境质量模糊综合评价模型,充分利用模型的系统性、综合性特点,利用模糊综合评价方法对水库2011~2016年水质状况进行评价,对水库近6年水质监测数据进行了分析评价,分析各评价因子对水质的综合影响,准确反映主要污染物和污染类型。分析结果表明:水库水质有2年相对较好,达到III级,有1年水质为IV级,有3年水质为V级。同时综合污染指数法分析了德泽水库年际水质演变特征。结果表明,2014年德泽水库水质达到最差,然后呈逐渐好转趋势。

According to the principle of fuzzy mathematics, the fuzzy comprehensive evaluation model of surface water environment quality of Deze Reservoir is established, which makes full use of the systematic and comprehensive characteristics of the model, evaluates the water quality of the reservoir in 2011~2016 by using the fuzzy comprehensive evaluation method, analyzes and eval-uates the water quality monitoring data of the reservoir in recent six years, analyzes the compre-hensive impact of each evaluation factor on the water quality, and accurately reflects the main factors. The results show that the water quality of the reservoir is relatively good for two years, reaching level III, level IV for one year and level V for three years. At the same time, the compre-hensive pollution index method is used to analyze the water quality evolution characteristics of Deze Reservoir. The results show that the water quality of Deze Reservoir reached the worst level in 2014, and then gradually improved.