GEOGRAPHIC ENVIRONMENT CHANGE AND FLOOD CATASTROPHE IN HUAIHE RIVER BASIN DURING LAST 2000 YEARS
- Received Date: 1995-12-01
- Publish Date: 1996-06-20
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Key words:
- Hongze Lake /
- headward accumulation /
- middle reaches of the Huaihe River /
- flood catastrophe
Abstract: During the last 2000 years, flood and waterlogging catastrophes took place quite frequently in the Huaihe River Basin.In the authors'opinion, these natural calamities have a very close relation to the evolution of Hongze Lake.Formed initially within a man-made dyke that was built in the Han Dynasty about 2000 years ago, Hongze Lake brought out headward accumulation developing in the middle reaches of the Huaihe River, with its continuous aggravation on lake-bottom and consequent water-level rise.It was estimated that, on an average, there were 3400×104t sediment per kilometre per year deposited on the river bed from Lutaizi to Bengbu.Therefore, the rising of water-level and the drainage difficulty in the middle reaches of the Huaihe River aggravated local flood and waterlogging catastrophe here.
Citation: | Yang Dayuan, Wang Yunfei. GEOGRAPHIC ENVIRONMENT CHANGE AND FLOOD CATASTROPHE IN HUAIHE RIVER BASIN DURING LAST 2000 YEARS[J]. Chinese Geographical Science, 1996, 6(2): 112-119. |