海河流域地下水资源保护

地下水资源在海河流域至关重要的资源。海河平原的浅层和深层含水层大面积处于严重超采状态。地下水资源的的过量开采造成了严重环境问题。为了保护地下水资源，评价了可行的技术。利用洪水和废水进行人工回灌已进行了试验。在很多地区可以应用地表回灌系统，城市地区实施深层含水层的回灌。更好地策略是减少地下水的抽取量，特别是为了减缓地面沉降和海水入侵。应该联合运用减少地下水抽水量和人工回灌，以解决地下水位持续下降和含水层恢复的问题。

Groundwater resources protection in Hai River basin of China

The groundwater resources in Hai River basin of China represent a vital water resource.Both the shallow and deep aquifers are highly over exploited in a large area of Hai river basin.The heavy over exploitation of the groundwater resources in causing huge environmental damae.For protecting groundwater resource,technical feasibility was evaluated.Artificial recharge using floodwater and wastewater has been tried and performed.Surface spreading systems are applicable in many areas.Deep aquifer injection is undertaken in the urban area.A much better strategy is to reduce the extraction of groundwater,especially for stopping or slowing down land subsidence and seawater intrusion.To solve the problem of falling groundwater levels and aquifer recovery,it is necessary to incorporate both a reduction in groundwater extraction and artificial recharge.