According to the chemical analyses data of the groundwater samples from 129 hydrogeologic drill-holes,and the groundwater mineralization degree data of 1200 wells tested in the field,the hydrochemical environments of the groundwater in the south coast plain of Laizhou Bay,especially the hydrochemical environments of the shallow groundwater in the salt water intrusion area,have been studied.

By field investigation and water chemical monitoring, the groundwater environment of the shallow buried paleochannel zones and alluvial diluvial fans on the south coast plain of Laizhou Bay can be divided into 3 area: the salt groundwater district in the north, the transition district in the middle and the fresh groundwater district in the south.

Restoration of degraded coastal wetlands in the Southern Laizhou Bay;