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一、地下水资源存在的主要问题 l、水资源量匮乏 郾城县地处河南中部,气候属亚热带向暖温带过渡地带,地下水主要来源于大气降水入渗和河道、坑塘渗漏补给,多年平均降雨量为810毫米,最大年降雨量1455.6毫米,最小年降雨量291毫米,由于年降雨量分配不均,6～8月份降雨量占年降雨量的80％左右,其它季节仅占15％左右,使降水更多地渗入补给地下水造成困难,非汛期雨量缺乏,补给甚微。全县多年平均水资源总量为2.569亿立方米,人均占有量329.5立方米,亩均占有量248.9立方
First, the main problems of groundwater resources l, the lack of water resources Tancheng County is located in central Henan, climate is subtropical to warm temperate transition zone, groundwater mainly from atmospheric infiltration and river infiltration, pit leakage recharge, multi-year average Rainfall of 810 mm, the maximum annual rainfall of 1455.6 mm, the minimum annual rainfall of 291 mm, due to uneven distribution of annual rainfall, June to August rainfall accounted for about 80% of annual rainfall, the other seasons accounted for only about 15% , Making precipitation more difficult to infiltrate the groundwater supply, lack of rainfall in non-flood season, the supply is minimal. The county’s average water resources for many years totaled 256.9 billion cubic meters, the per capita share of 329.5 cubic meters, the average share of 248.9 cubic meters