通过野外实地调查和水化学监测，将莱州湾南岸平原浅埋古河道带及冲洪积扇浅层地下水水化学环境分为３大区域，即北部的全咸水区、中部的咸淡水过渡区和南部的全淡水区．在３个系统的浅埋古河道带内的全淡水区，仍有水化学特征的南北向差异．浅层地下水水化学特征具有年内及年际变化规律．人类应合理开发利用地下水资源，防止咸水入侵和人工污染，保持良好的地下水水环境 Through the field investigation and water chemistry monitoring, the shallow ancient aqueduct in the southern bank of the Laizhou Bay plain and the alluvial-gypsum groundwater hydrocramical environment are divided into three regions, ie the whole salty water area in the north, the brackish water transitional area in the central part And the southern whole freshwater area. In the three systems of shallow buried ancient river courses in the whole freshwater area, there are still chemical and chemical characteristics of the north-south differences. The shallow groundwater hydrochemical characteristics have the law of year and interannual variation. Human beings should rationally develop and utilize groundwater resources to prevent salt water intrusion and artificial pollution and maintain a good groundwater environment