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探讨了三峡建坝后由于枯水季节长江流量较建坝前有所增大，是否会造成中游江汉平原四湖地区土壤沼泽化和加重农田渍害的问题．在对该区地下水（承压水及潜水）动态分析的基础上，选定了水文地质计算模型．分别用数值法、解析法及数理统计法对建坝后的地下水动态进行预测．结果表明，在城陵机以上区域，潜水位在距长江４ｋｍ范围内有一定的抬升，但变幅很小，不致加重农田渍害和造成土壤沼泽化；在城陵矶以下部分区域，潜水位的升高虽然较大（０．５ｍ左右），但由于这一带冬季地下水埋深较大（２．０ｍ以上），潜水位的短期抬升不会产生危害．
After the Three Gorges Dam was constructed, the flow of Yangtze River increased due to the increase of the flow in the Yangtze River during the dry season compared with that before the dam construction, which would cause the problem of soil swamping and aggravating of farmland waterlogging in the Four Lakes of Jianghan Plain. Based on the dynamic analysis of groundwater (confined water and submersible) in this area, the hydrogeological calculation model was selected. The dynamic of groundwater after the dam construction is predicted by numerical method, analytic method and mathematical statistics respectively. The results show that in the area above Chenglingji, the subduction level is uplifted within 4km from the Yangtze River, but the amplitude is small, so it will not aggravate the farmland waterlogging and cause soil swamping. In some areas below Chenglingji, Although the increase of groundwater level is larger (about 0.5m), the short-term elevation of phreatic level will not cause any harm because of the large groundwater depth (above 2.0m) in winter.