子牙河—海河流域浅层地下水矿化度分布及成因

对天津地区子牙河—海河干流流域浅层地下水矿化度及水化学类型分布进行了调查,发现地下水矿化度由低到高、从微咸水到咸水再到盐卤水渐变特征明显,对其形成原因进行了分析,认为地下水补给不足以及深层地下水开采形成降落漏斗和渤海湾风暴潮等引起的海水入侵是导致该分布特征的主要原因。

The distribution and its formation causes of the mineralization degree of the shallow groundwater in Ziya River Basin and Haihe River Basin

Through the investigation of the mineralization degree of the shallow groundwater and water chemistry type distribution in Tianjin Ziya River Basin and Haihe River Basin, found the obvious gradual change that the mineralization degree of shallow groundwater is from low to high, from brackish to salt and then to brine. Through the analysis, we give the conclusion：insufficient of groundwater recharge, the drawdown funnel caused by exploitation of deep groundwater, and the seawater intrusion caused by storm surge in Bohai Bay are the main reasons that cause the distribution characteristic.