为研究天然条件下白洋淀地区淀水与周边浅层地下水的补排关系及水循环规律，分析白洋淀1917-1970年水位监测数据、白洋淀周边浅层地下水历史流场数据。结果表明，天然条件下白洋淀周边浅层地下水对白洋淀补给甚微，地表水与地下水的双向转化关系不明显。白洋淀地表水主要以侧向渗流的方式补给周边浅层地下水。通过对白洋淀周边浅层地下水水化学数据进行分析，发现白洋淀周边浅层高TDS地下水水化学成分受溶滤作用控制，反映出白洋淀周边地层含盐量高的特征，进一步表明天然条件下白洋淀周边浅层地下水浅埋区是地下水蒸发排泄地带。白洋淀主要接受地表水补给，排泄方式为蒸发、蒸腾、侧向渗流。白洋淀周边浅层地下水既接受区域地下水径流补给又接受淀水侧向渗流补给，主要以蒸发、蒸腾方式排泄。

In order to study the relationship between surface water and shallow groundwater in Baiyangdian area under the natural environment and the natural evolution procedures of hydrological cycle, the data of water-level monitoring of Baiyangdian Lake from 1917 to 1970 and shallow groundwater historical flow field around Baiyangdian Lake were analyzed. The results show that the shallow groundwater around Baiyangdian Lake has little recharge to Baiyangdian Lake under natural conditions, and the two-way transformation between surface water and? groundwater is not obvious. Baiyangdian Lake water recharge shallow groundwater around the lake mainly in the form of lateral leakage. Major ions in shallow groundwater were measured. It has been discovered that chemical composition of shallow groundwater around Baiyangdian distribution which has high total dissolved solids content is controlled by the leached role, that reflects that formation has high salt contents. Results show that shallow groundwater with shallow-depth around Baiyangdian Lake is greatly disturbed by evaporation. Baiyangdian Lake is mainly recharged by surface water, the ways of discharge are evapotranspiration and the lateral seepage. Shallow groundwater around Baiyangdian Lake is mainly recharged by lateral flow and lateral seepage from lake, the way of discharge is evapotranspiration.

中国地质调查局地质调查项目(DD20190300)资助。Funds:基金英文翻译(DD20190300)