| 基于水质指数的宁夏沙湖综合水质状态研究 |
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| 引用本文： | 雷兴碧,冯玉雪,赵红雪,邱小琮,吴岳玲,郭琦.基于水质指数的宁夏沙湖综合水质状态研究[J].中国农村水利水电,2021(1). |
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| 作者姓名： | 雷兴碧 冯玉雪 赵红雪 邱小琮 吴岳玲 郭琦 |
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| 作者单位： | 宁夏大学土木与水利工程学院;宁夏农村能源工作站;宁夏大学生命科学学院 |
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| 基金项目： | 宁夏重点研发计划(东西部科技合作)项目(2017BY087);宁夏高等学校一流学科建设(水利工程)资助项目(NXYLXK2017A03)。 |
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| 摘 要： | 为探索不同类型的水质指数在沙湖综合水质评价中的应用及其相关关系,采用水质标识指数(WQII)、加拿大环境部长理事会水质指数(CCMEWQI)、通用水质指数(UWQI)对沙湖2010-2017年4月、7月、10月水环境进行了综合水质状态评估,并对不同水质指数进行相关分析及回归分析。结果表明:沙湖WQII变化区间为3.1~4.7,CCMEWQI变化区间为27.44~72.07,UWQI变化区间为31.53~51.74,水质状态整体处于较差等级,综合水质呈恶化趋势,水环境治理刻不容缓。不同综合水质指数结果存在差异,CCMEWQI及UWQI皆与综合水质标识指数显著相关;CCMEWQI与综合水质标识指数在复合及增长模型下拟合优度达到最优(R2=0.614),UWQI与综合水质标识指数在二次模型下拟合优度达到最优(R2=0.970)。
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| 关 键 词： | 沙湖 水质状态 水质指数 相关性 |
Assessing the Water Quality of Shahu Lake by the Water Quality Index Model |
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| LEI Xing-bi,FENG Yu-xue,ZHAO Hong-xue,QIU Xiao-cong,WU Yue-ling,GUO Qi.Assessing the Water Quality of Shahu Lake by the Water Quality Index Model[J].China Rural Water and Hydropower,2021(1). |
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| Authors: | LEI Xing-bi FENG Yu-xue ZHAO Hong-xue QIU Xiao-cong WU Yue-ling GUO Qi |
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| Institution: | (School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China;Ningxia Rural Energy Work Station, Yinchuan 750002,China;School of Life Science, Ningxia University, Yinchuan 750021,China) |
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| Abstract: | The study aims to characterize the relation of various water quality indexes and assess Shahu Lake water quality.Water Quality Identification Index(WQII),Canadian Council of Ministers of the Environment Water Quality Index(CCMEWQI),Universal Water Quality Index(UWQI)used for assessing Shahu Lake water quality status in April,July and October from 2010 to 2017 are discussed.The results show that the Water Quality Identification Index of Shahu Lake ranges from 3.1 to 4.7,CCMEWQI fluctuates from 27.44 to 72.07,and the general water quality index fluctuates from 31.53 to 51.74.Water quality state is generally in marginal or poor grade,and the comprehensive water quality is in a deteriorating trend,and it is urgent to improve water quality.CCMEWQI and UWQI are significantly correlated with the Water Quality Identification Index.The optimal model of regression analysis between CCMEWQI and WQII are obtained under the composite and growth model(R2=0.614),and the optimal model of UWQI and WQII are obtained under the quadratic model(R2=0.970). |
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| Keywords: | Shahu Lake water quality water quality index correlation analysis |
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