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Huaihe River is China's seventh largest river, which rises Henan tongbai mountain, flows through Henan, Anhui, Jiangsu, and finally into the sea. Ming and Qing Dynasties, the Huaihe River flood-prone, huge losses to people's lives and property, seriously affected the socio-economic development of the Huaihe River Basin, but also seriously damaged the ecological balance. In this paper, the relationship between the angle of the Huaihe River flood and ecological environment to study the impact of the floods on the ecological environment of the Huaihe River Basin, which reveals the Ming and Qing Dynasties Huaihe River floods and ecological long-term continuation of the continued deterioration of the truth, but also for today Huaihe River flood management, providing comprehensive and objective history reference. The article first discusses the natural situation of the Huaihe River and the Yellow River Huai away the Huaihe River Basin profile, and then analyzes the Ming and Qing Dynasties Huai away of the Yellow River and the Yellow River Huai away after the change of the Huaihe River Basin. Secondly, the paper in time series discusses the status of the Ming and Qing Huai River flood. In the early Ming Dynasty, the Yellow River Huai away so that the water of the Yellow River flooding everywhere in the Huaihe River Basin, the Yellow River silted River and its many tributaries of the Huaihe River, the Huaihe River water system has been disrupted, the higher the silt of the river bed of the lower reaches of the Huaihe River, forming a \ground river \And described the type of flood waterlogging type-flood and dam breaching water described in the context of the Huaihe River flood situation. And discusses the main features of the Ming and Qing Dynasties flood performance: the time of the disaster, disaster, concurrent multi-hazard. The fourth chapter focuses on the changes in the ecological environment of the Huaihe River Basin, analysis of the impact of the floods on the river basin soil, vegetation. Huaihe River Basin original fertile land, the Yellow River flood caused serious desertification and salinization of the basin. Where desertification is mainly distributed in the the Kaifeng, Lankao Zhongmu area, and salinization are concentrated in the northern Jiangsu area. At the same time due to flood caused by a large number of victims, in order to survive continue to deforestation, the Huaihe River Basin vegetation severely damaged, reducing the vegetation area in a short period of two hundred years have more than doubled, so that the floods are more likely to. Chapter Sheyang Lake Hongze and Luoma evolution analysis, analysis of the impact of the floods on the territory of the lake. Sheyang Lake received a lot of sediment, resulting in constant increase in the lake basin, the lake is shrinking, and finally become small lakes of several connected to each other, and now Sheyang Lake has evolved into a swampy plain. The late Ming Dynasty, with the Huaihe River riverbed silt, Huai River into the sea more difficult, the lake water storage capacity continues to increase, while the Huang-Huai four executions overflow Pan quarter tame for storing clear brush yellow \Huai, resulting in full elevation of the water level of Hongze Lake, culminating in the Hongze Lake. Luoma into the lake in the Ming Dynasty, the latter due to the flood of the Yellow River flood in savings, resulting in the lake continues to expand, and ultimately the formation of the Great Lakes. The sixth chapter analyzes the impact of the Huaihe River floods in northern Jiangsu coastal beach. Subei the coastline in the Yellow River Huai away before 3000 years has been relatively stable, however, from the history of the Yellow River diversion in 1128, Yellow Ruhuai make new Yellow River mouth constantly extending outward. Discharges and Suspended Sediment caused by the dramatic changes of the coast of northern Jiangsu Huaihe relying on a massive amount of mud, the shoreline rapidly over the sea. The estuary extends disguised form of an elongated the Huaihe river downstream, resulting in slow flood season discharged, exacerbated by the floods of River region also caused a lot of land. Finally, the study suggests that the Ming and Qing dynasties Huaihe River Basin ecological environment has been a great misfortune, this change is accompanied by the Yellow River Huai away natural factors, in the case of excessive population pressure caused by wanton dry lake Tian, mountains reclamation, as well as a variety of political and economic factors to pay the combined result of mutual organizations. The environmental changes during the consequences are serious, it not only leads to the lake or the blockage or expanded, river diversions frequent the surface runoff disorder unbearable, forest damage, destruction of vegetation, soil erosion, and to bring the people on both sides of the Huaihe River deadliest natural disasters . Affect social stability. And to some extent, the impact of floods in the Huaihe River basin society is more serious than the impact on the environment. Therefore, today's development and the development of the Huaihe River Basin, when taking history as a mirror and pay close attention to ecological problems, establish the scientific concept of development, and take the road of sustainable development.
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