摘要
【目的】了解卫河水系新乡段历年不同水期和不同河段的水质变化情况。【方法】采用综合污染指数法对卫河水系1963-2018年的水质指标数据进行了计算,分析河流水质的时空变化特征。【结果】卫河干流8个水质站和共产主义渠干流3个水质站不同水期的综合污染指数不同。总体上,干流1980年以前综合污染指数较低,1990-2009年综合污染指数变高,2010年后综合污染指数降低,但仍高于1980年以前。支流7个断面的综合污染指数不同,并随年代变化而变化。水系中水库的综合污染指数最低。西孟姜女河和东孟姜女河主要受点源排污影响,综合污染指数最高。【结论】干流1990-2009年污染变严重,2010年后污染减轻。干流水质污染程度受不同水期的影响。水系中,水库的水质最好,西孟姜女河和东孟姜女河水质污染最严重。
【Objective】Study water quality tendency and changes in Xinxiang section of the Wei River Basin at different periods and reaches.【Method】We calculated enormous amounts of data over the past several decades by means of comprehensive pollution index method,then identify spatio-temporal characteristics of water pollutants.【Result】Comprehensive pollution indexes of eight water quality monitoring stations at Wei River and three water quality monitoring stations at Communism canal were different at different periods.Overall,comprehensive pollution indexes in the main river were low in the before 1980s,and became higher in the 1990s and 2000s,and decreased in the after 2010s, which was still higher than that in the earlier 1980s. Comprehensive pollution indexesof seven tributaries were different, and changed with the time lapse. Comprehensive pollution indexes in reservoirswere the lowest. Comprehensive pollution indexes in West Mengjiangnu River and East Mengjiangnu Riverwere the highest, which were mainly affected by the point source pollution. 【Conclusion】The main river has beenseriously polluted in 1990—2009, and pollution reduced after the 2010s. Water pollution at different periods wasdifferent. In the water systems, water quality in reservoirs was best and that in West Mengjiangnu River and EastMengjiangnu River was the worst.
作者
冯卫
孟春芳
冯利
田珂宁
叶炳效
FENG Wei;MENG Chunfang;FENG Li;TIAN Kening;YE Bingxiao(Xinxiang Hydrology and Water Resources Survey Bureau,Xinxiang 453000,China;State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China,Xi’an University of Technology,Xi’an 710048,China;Nanwan Reservoir Authority,Xinyang 464000,China;Henan Vocational College ofWater Conservancy and Environment,Zhengzhou 450008,China)
出处
《灌溉排水学报》
CSCD
北大核心
2019年第8期121-128,共8页
Journal of Irrigation and Drainage
基金
新乡市科技攻关计划项目(CXGG17023)
关键词
不同水期
综合污染指数
新乡
水质
卫河
different periods
comprehensive pollution index
Xinxiang city
water quality
Wei River
