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《Hebei Academic Journal》 2017-05
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The Great Changes at the Lower Reaches of the Yongding River

WANG Pei-hua;School of History,Beijing Normal University;  
From the 10 th year of Wanli period in Ming dynasty to the 22 nd year of Daoguang period in Qing dynasty( 1602-1842),the water environment of middle and lower Yongding River has experienced two huge changes,with the 10 th year of Qianlong period( 1745) as a divider. Before the year,the water was abundant,while afterwards the water was less. The dam of Yongding River was built in the 37 th year of Kangxi period( 1698),which caused the sediment deposition in the lower reaches and aggravated the environmental changes: before the construction of the dam,the murky river freely flowed towards south,and the sediment deposition increased soil fertility,which was good for autumn wheat. And it was called the land of flood and wheat. After the construction of the dam,the lakes Yongding River flowed through deposited into flat land and fertile soil. The river silt became fields,and they were distributed among the guarders along the river,or tenanted by the peasants recruited from Chous and Hsiens. The rent was used to harness the river. The fields cultivated by peasants from Chous and Hsienswas upgraded to new private land,and the Manchu people also cultivated the river silt illegally. The riversilt was the biggest feature of Yongding River's water project. The cultivation reduced the number of the lakes,and influenced the ability of lakes saving water and the flood-carrying capacity of the river.
【Fund】: 2014年度中央高校基本科研业务费专项资金资助项目《清代北方人水矛盾及其制度调节》(skzzy2014032)
【CateGory Index】: K249
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