银川地区主要入黄排水沟水质演变趋势分析及提升对策  

Improvement Countermeasures And Variation Tendency Analysis on Quality of Water in Main Drainage Ditches Linking with Yellow River in Yinchuan Area

作　　者：赵萌 王世军 Zhao Meng;Wang Shijun

机构地区：[1]宁夏水文水资源监测预警中心,宁夏银川750001

出　　处：《吉林水利》2020年第10期27-30,共4页Jilin Water Resources

摘　　要：为进一步探索银川地区主要入黄排水沟水质年际变化规律及水质演变趋势,根据近7年水文数据资料,应用季节性Kendall检验法分别对银川地区六条主要入黄排水沟进行水质趋势分析,结果表明:2013—2015年,大河子沟、东排水沟、中干沟、第二排水沟、银新沟5条排水沟污染程度有略微上升趋势,水体污染较为严重。2017年河湖长制实施以来,排水沟水质呈稳步好转趋势,过去7年水质演变整体呈“高度显著下降”趋势。In order to explore the law about inter annual variation in water quality and water quality variation tendency,in this paper,the author,based on the recent seven year hydrological data,by means of seasonality Kendall Test Method,carried out analysis on tendency of water quality variation for six main drainage ditches linking with Yellow River in Yinchuan area respectively.The results show that from the year 2013 to 2015,the pollution degree of water in Dahezi ditch,the east ditch,the middle main ditch,the second ditch and Yinxin ditch five drainage ditches showed upward trend slightly,and the water body pollution is relatively more serious.Since the year 2017 in which the river and lake leader system has been implemented,the qualities of water in drainage ditches have showed the trend of steady improvement,and in the past seven years,the variation of water quality wholly showed high degree remarkably decreasing.

关 键 词：入黄排水沟 水质趋势分析 污染成因 对策 

分 类 号：X524[环境科学与工程—环境工程]