[1]WEN Xiaojun,CHEN Hui,BAI Junhong.Evaluation and Analysis on Water Environmental Quality of Hengshui Lake Based on Fuzzy Comprehensive Evaluation Method[J].Research of Soil and Water Conservation,2016,23(02):292-296.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 02
Page number:
292-296
Column:
Public date:
2016-04-28
- Title:
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Evaluation and Analysis on Water Environmental Quality of Hengshui Lake Based on Fuzzy Comprehensive Evaluation Method
- Author(s):
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WEN Xiaojun1, CHEN Hui2, BAI Junhong1
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1. State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China;
2. College of Resources and Environment Sciences, Hebei Normal University, Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang 050024, China
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- Keywords:
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environmental science; Hengshui Lake; water environmental quality; fuzzy matrix; major contribution of pollutant
- CLC:
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X822;S181.3
- DOI:
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- Abstract:
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The fuzzy comprehensive evaluation method was applied to evaluate the water environmental quality of three main monitoring sites (i.e., Wanei, Xiaoku and Jixian) of Hengshui Lake during the period from 2000 to 2007. The results showed that water environment quality of Hengshui Lake had not been improved during the period from 2001 to 2005, however, water environment quality of both Wanei and Jixian monitoring sites had been improved after 2006, and basically met class Ⅲ criteria of water quality. The main contribution ratios of these pollutants at three monitoring sites also differed each other. As for Wanei site, the major pollutant in 2006 was ammonia nitrogen with a contribution rate of 0.621 and permanganate index was the major pollutant in the rest years. From 2000 to 2005, the contribution rates were 0.52, 0.48, 0.44, 0.46, 0.66, and 0.70, respectively and it was 0.45 in 2007. At Xiaoku site, the major pollutant in 2003, 2004, 2005, and 2007 was total phosphorus, the respective contribution rate was 0.56,0.46,0.38, and 0.42, respectively, however, the major pollutant was ammonia nitrogen in 2000, 2001, 2002 and 2006, the respective contribution rates were 0.58 (2000), 0.36 (2001), 0.43 (2002), and 0.838 (2006), respectively. In contrast, the major pollutant at Jixian site was ammonia nitrogen with the contribution rates of 0.60 (2000),0.38 (2001),0.39(2002), and 0.583(2006) and it was total phosphorus with contribution rate of 0.38 in 2003, whereas it was permanganate index in 2004, 2005 and 2007 with the respective contribution rate of 0.61,0.50, and 0.38, respectively. On the basis of water environmental quality analysis, the reasons for the water environment pollution of Hengshui Lake were analyzed and some suggestions for the ecological conservation and water quality management of this lake were also put forward.