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1 周口市农村供水水源与水质现状周口市总面积11959km2,多年平均降水量763.4mm,因地理位置等原因,降水自东南至西北变化在650～900mm之间,多年平均径流深509.3mm。全市水资源总量20.914亿m3,其中地表水资源量9.367亿m3,地下水总量13.353亿m3,地下水多年埋深>3.48m。就全市而言,水资源时空分布不均。农村饮水由于地表水污染严重全部采用地下水。
1 Zhoukou City, the rural water supply and water quality Zhoukou City, a total area of 11959km2, the average annual rainfall of 763.4mm, due to geographical location and other reasons, precipitation from southeast to northwest changes in the 650 ~ 900mm, the average annual runoff depth 509.3mm. The total amount of water resources in the city is 2,091,400,000 m3, of which the surface water resources amount to 937,700,000 m3, the total groundwater volume 1,335,500,000 m3 and the groundwater depth for many years is> 3.48m. As far as the city is concerned, water resources are unevenly distributed in time and space. Drinking water in rural areas uses groundwater because of serious surface water pollution.