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1991年淮河水系汛期来得早,降雨历时长,强度大,造成一次以涝灾为主的罕见的洪涝灾害。1991年大水所带来的主要启示是: 一、黄河夺淮的恶果尚未根除 1991年淮河洪水不算很大,不少行洪、蓄洪区都已行洪、蓄洪,为什么洪水久泄不尽,中游水位居高不下,迫使两岸众多湖洼持续闭闸,滴水未排。水位过高,四处漫溢,酿成大面积的早秋作物绝产,继而又影响了各湖洼的自排能力,延误了大面积的晚秋补种,影响部
In 1991, the flood season of the Huaihe River came earlier and the rainfall took longer and stronger, resulting in a rare flood disaster mainly caused by floods. The major revelations brought about by the flood in 1991 are: First, the evil has never been eradicated in the Huaihe River in 1991 The flood in the Huaihe River was not large in 1991. Many flood and flood storage areas have been flooding and flood storage, The high water level in the middle reaches forced the closure of many lakes and lakes on both sides of the Strait with no drip. Water level is too high, overflowing everywhere, resulting in large areas of early autumn crop failure, which in turn affected the self-draining capacity of the lake depression, delayed a large area of late autumn replanting, Affect Department