河南省新乡市卫河流域洪水变化规律研究

Research on Flood Change Law of Weihe River Basin of Xinxiang City of Henan Province

新乡市卫河流域属于海河流域上游,近年来水旱灾害频发,洪水变化规律较为复杂。收集该区域内卫河及共产主义渠干流7个水文站点1963~2016年共计54年的逐日流量数据,分别计算逐年最大1日、3日、7日、15日、30日洪水数据,采用滑动平均法以及Mann-Kendall趋势检验法等统计学方法对其进行分析,得出该区域洪水总体变化规律以及发生突变的时间。

Weihe river basin of Xinxiang city belongs to the upper reaches of Haihe River basin.In recent years,floods and droughts occur frequently.The total daily data of internal Weihe and seven hydrological sites from 1963 to 2016 was collected and researched.The biggest flood data of one day,three days,seven days,fifteen days,thirty days of each year were calculated.The moving average method and the Mann-Kendall trend test method and other statistical methods were adopted to analyze the data and get the conclusion of the regional flood overall variation law and mutation time.