河北省东部黑龙港地区淡水资源十分紧缺，但是这一地区地下富存大量的咸水和微咸水资源。试验和实践证明，除２－３ｇ／ｌ的微咸水可以利用之外，在适当的条件下，４－６ｇ／ｌ的咸水也可以利用，为解决本地水资源不足开辟了一条新路。

Fresh water resources are very deficient in the HeiLongGang region of east Hebei Province. But where there are large quantities of saline water and slightly salinized water, tests and practices show that the slightly salinized water of 2-3g/1 can be used; besides, under suitable conditions, the saline water of 4-6g/1 can be used as well. This opens a new road to solve the problems of inadequate water resources of the region.