关键词: 淮河流域, 历史水灾, 灾害地图

Abstract: Based on the historical records on floods in the Huaihe River Valley this paper examined the flood disasters during the period when the Yellow River migrated southward into the Huaihe River Valley(1994-1855).The auther illustrated the various and significant effects of both the Yellow River and the harnessing of rivers and the protecting of the Grand Canal in the Ming Dynasty and the Qing Dynasty, expressed his own ideas to the methodology of the study on the historical disasters.Furthermore,the author compiled severaI types of thematic maps of historical floods in the Huaihe River Valley.With comprehensive studies,several conclusions were achieved as follows.1.The Yellow River, with its immense floods and huge sediments into the Huaihe River Valley, was one of the main causes to the great changes in the water courses and the serious floods in the same region.2.The harnessing of water and the protecting of the Grand Canal were another chief causehaving both positive and negative consequences to the flood situation.3.Thematic map on historical disasters is useful in this research subject by giving visual illustrations.Meanwhile, wise skills should be applied in the map compilation.

Key words: Huaihe River Valley, Historical flood, Thematic map of disaster