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《Journal of Anhui Agricultural Sciences》 2012-15
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Quality Evaluation of Lake Water and Sediment Based on Multilevel Fuzzy Theory

FENG Su-zhen et al(College of Water Conservancy and Civil Engineering,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010018)  
[Objective] The study aimed to assess the pollution of water and sediment in Wuliangsuhai Lake based on multilevel fuzzy theory.[Method] On the basis of measured and survey data,the quality of water and sediment in six representative sites of Wuliangsuhai Lake was evaluated by using multilevel fuzzy theory.[Result] Water quality of Wuliangsuhai Lake was different in space,that is,the water quality close to outfalls was poor,but the water quality became better from north to south with the direction of water flow.Sediment near the water exit was at Grade Ⅳ,while it was at GradeⅤ in other sites.From the evaluation results of water and sediment,we could see that pollution of Wuliangsuhai Lake was very serious,and eutrophication process was aggravating,so it is extremely urgent to control and restore Wuliangsuhai Lake.[Conclusion] The research could provide scientific references for controlling the pollution of Wuliangsuhai Lake.
【Fund】: 内蒙古自治区高等学校科学研究项目(NJ10061)
【CateGory Index】: S273.3
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