明清时期潇河河道迁徙原因分析

潇河是汾河的第二大支流,其流域是晋中重要的经济区域,明清时期流域水患灾害渐重,其中下游河道频繁迁徙是新出现的灾害。由于流域较小,正史记载不详,本文以地方志为主要材料探究了河道迁徙的主要原因。鉴于历史时期该流域植被一直较少,明清上游白马河一带又未出现较大规模的山地坡垦,故河道迁徙之根源应在下游。本文认为其主要原因有二:首先,流域洪涝暴雨是河道迁徙的直接诱因;其次,下游湖泊消失、渠道密集等生态环境之变化则是根本原因。

Analysing the Causes of the Move of Xiaohe River Course

Xiaohe is a second tributary of Fenhe, and its valley is one of the most important economic areas in the middle of Shanxi province. In Ming-Qing dynasty,the new feature of its calamity is the river course had moved frequently . This paper brings up three opinions: the first is the river silt come from the upper reaches, but in this period there had not cultivated more fields on its hills; the second is that the lower reaches had built too many irrigation ditches; the third is that the real causes of the move of Xiaohe river course is the irritation use of the water.