水质模糊综合评价模型的建立与应用——以鄱阳湖为例

摘要

根据模糊数学的原理,建立了地表水环境质量模糊综合评价模型,并利用该模型对鄱阳湖的水质进行了评价.结果表明,鄱阳湖59.4%的时段内水质达I级,水体未受到污染;13.5%的时段内水质为Ⅱ级,水体受到轻度污染;13.5%的时段内水质为Ⅲ级,水体受到中度污染;13.6%的时段内水体受到重度污染.%Based on rationale of fuzzy mathematics, the fuzzy comprehensive evaluation model of quality of surface water environment was estallished and the water quality of Poyang Lake was evaluated by this model. The results showed that the water quality of Poyang Lake reached Grade Ⅰin 59.4％ time sections and the water body was non-polluted; it was Grade Ⅱ in 13.5％ time sections and the water body was light polluted; it was Grade Ⅲ in 13.5％ time sections and the water body was moderate polluted; and the water body was heavy polluted in 13.6％ time sections.