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Dayu flood control and formed an important traditional concept of success , by this legend , affecting thousands of years of Chinese political and social aspects . Existing legends are the Warring States due to the the Dayu age , people WORM , there are a lot of contradictions inconsistency between . And because of the worship of the ancients Yu , the legendary and exaggerated will be attached into the many myths severely doubt its authenticity in modern times since . Even for the Yu the governance volts flooding , made ??great contributions to the Chinese nation and a national hero for the fish for insects , for God , for clan totem various remarks . Analysis according to the general laws of historical geography, history and natural science , the geographical features of the area of the Yellow River Delta , ancient legends , to investigate the authenticity of of Dayu its people and then flood reason , flood control methods , water management performance , Research Dayu an effective entry point . Collation of historical data , and combined with the analysis of the background of the times , we can restore a flesh and blood Dayu , he is a true water hero of the early human society . The Dayu governance flood caused natural disasters coupled with man-made disasters . Natural disasters , that the flood of natural causes , to Jiuxing geocentric convergence . Not only flood -prone , and the temperature dropped significantly , frost damage , drought , earthquakes , hail , and other major natural catastrophe concentrated . Man-made, that the flood of social reasons , the most important is the extensive management primitive agriculture in ancient times the ecological , the destruction of forests, grasslands , resulting in lack of water storage carrier . Regulating rainwater vegetation during heavy floods , the river dried up , no rain , flood and drought disasters will often come to patronize . With monstrous flood , the flood became imperative Dayu a timely . Yu and can be divided into two aspects , one of the major rivers of governance , mainly through the silt , shunt : canal Shuji . Governance flood governance only one place is of no avail , and therefore require a comprehensive governance flood very broad range . Geographical Dayu then flood in the lower reaches of the Yellow River , the middle and lower reaches of the Yangtze River , the Huaihe River Basin these
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