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金明昌五年(1194年),黄河大决阳武,南派由泗水故道入淮。金政权不但不加堵塞,反而乘势推波助澜,以宋为壑。从此黄河夺淮,黄淮合流,历时661年。黄河是世界上含沙量最大的河流,黄河南泛,对淮河流域的水利影响很大,使淮河干支流河床逐渐淤高,下游的入海出路被淤塞,将黄、淮交汇处的许多小湖连成了洪泽湖。明代中叶以前,黄河泥沙仍多沿泛区停滞沉淀,浊流入淮已成清流,对淮河下游危害程度远比中游地区为轻。据武同举《淮系年表》云,至明正统二年(1437
Jin Mingchang five years (1194), the Yellow River decided Yangwu, South sent from Surabaya into Huai. The regime not only did not plug the gold, but the momentum to fuel flames, with the will of the Song. Since then the Yellow River Huai, Huanghuai confluence, which lasted 661 years. The Yellow River is the largest river in the world with the largest amount of sediment in the Yellow River. The South Yellow River has a great influence on the water resources of the Huaihe River basin, causing the riverbed of the Huaihe River to gradually silt up and the downstream sea exit blocked. Hongze Lake even into a. Before the middle of the Ming Dynasty, the Yellow River sediment still stagnated and precipitated along the Pan-Pan River. Turbid flow into Huai has become a clear stream, and its harm to the lower reaches of the Huai River is much lighter than that in the middle reaches. According to Wudu cited “Huai system chronology” cloud, to the Ming orthodox two years (1437