明清时期皖江地区水旱灾害研究

Research on Floods and Droughts in Wan-Jiang Basin During Ming and Qing Dynasties

为丰富和拓展安徽乃至长江流域水旱灾害研究领域,通过对皖江地区各府县志文献资料关于水旱灾害的记载,使用数据统计、比较分析等方法,对该地区明清时期水旱灾害的发生特征、变化趋势及周期进行了分析.结果表明:一是水灾居多且呈频次不断上升的趋势;二是区域间水旱灾害存在不均衡性;三是水旱灾害发生的交替性和长时段上的相对均衡性.

In order to enrich and expand the study field of floods and draughts in Anhui and Yangtze basin, by viewing the records on documentations of floods and droughts of counties in Wan-Jiang basin and using statistics and comparative analysis, we analyzed the characteristics, variation tendency and cycle of floods and droughts of the area during Ming and Qing Dynasties. The result shows： Firstly, floods occurred mostly and presented a trend of continuous growing frequency. Secondly, unbalance of floods and draughts exists in the region. The third is the altemativity of occurrence of floods and draughts and comparative balance in long terms.