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黄河潼关高程抬高,是三门峡水库蓄水后带来的严重问题;随着黄河和渭河水量减少,加重了渭河下游的泥沙灾害。三门峡水库的敞泄运行,可使潼关高程大幅度降低;但是,希望大量增加水量来降低潼关高程是不现实的。只有坚持低水位运行,长年敞泄冲刷水库,才是降低潼关高程现实可行的做法。
Elevated elevation of the Tongguan River in the Yellow River is a serious problem brought by the Sanmenxia Reservoir. With the decrease of the Yellow River and the Weihe River, sediment disasters in the lower reaches of the Weihe River have been aggravated. The opening and venting operation of Sanmenxia Reservoir can greatly reduce the elevation of Tongguan. However, it is unrealistic to expect a large amount of water to reduce the elevation of Tongguan. Only by sticking to the operation of low water level and reserving flood and discharging reservoirs for many years is a realistic and feasible way to reduce the elevation of Tongguan.