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1 荥阳市水资源现状荥阳市位于河南省中部,地跨黄淮两大流域,全市多年平均降水量为608.2mm,据调查计算,水资源可利用总量为1.57亿m~3,平均3495m~3/hm~2,人均239m~3,是一个水资源严重匮乏的地区。据20年的统计资料:浅层水水位年均下降0.54～2.01m,中深层水水位年均下降1.24～2.32m,平均每年下降0.67m,但近年地下水位下降有明显加快之趋势,1997年全市平均下降1.34m,为多年均值的2倍,
1 Leiyang City, the current status of water resources Leiyang City, located in central Henan Province, across the Huanghuai two basins, the city’s annual average rainfall of 608.2mm, according to the survey and calculation, the total available water resources 157 million m 3, with an average of 3495m ~ 3 / hm ~ 2, per capita 239m ~ 3, is a serious lack of water resources in the region. According to the statistics of 20 years, the annual average water depth of shallow water has dropped by 0.54-2.01m, the average water depth of middle and deep waters has decreased by 1.24-2.32m, averaging 0.67m per year, but the decline of groundwater level has obviously accelerated in 1997. The city’s average decline of 1.34m, 2 times the average for many years,