干旱区研究2011，Vol.28Issue(2)：288-293,6.
河西走廊明清时期旱灾与干旱气候事件初步研究
Preliminary Study on Drought Disasters and Drought Events in the Hexi Corridor in the Ming and Qing Dynasties
摘要
Abstract
In this paper, the grade, temporal and spatial distribution and causes of drought disasters in the Hexi Corridor of Gansu Province in the Ming and Qing dynasties were studied based on collecting, sorting out and analyzing the historical data. The results show that 83 times of drought disasters occurred in the Hexi Corridor during the 542 years from the Ming Dynasty to the Qing Dynasty, and drought disaster occurred once every 6. 5 years in average. The drought disasters in this area could be divided into 4 grades, I. E. The slight drought disasters ( 13 times) , moderate drought disasters (44 times) , serious drought disasters (19 times) and extremely serious drought disasters (7 times) , and their proportions were 16% , 53% , 23% and 8% of the total respectively. Temporally, the drought disasters in the Hexi Corridor during Ming and Qing dynasties could be divided into early, middle and late stages, the occurring frequency of drought disasters was high at the late stage but low at the early and middle stages, and it was in an increase trend. Spatially, the drought disasters decreased significantly from the east to the west due to the excessive and irrational exploitation of water resources. However, the drought disasters in the Hexi Corridor were mainly caused by climate change. It is considered that the high occurring frequency of drought disasters during the period of 1763 -1771 was an arid climatic event.关键词
明清时期/干旱灾害/时空分布/发生原因/干旱等级/河西走廊Key words
Ming and Qing dynasties/ drought disaster/ temporal and spatial distribution/ reasons/ drought grade/ the Hexi Corridor分类
天文与地球科学引用本文复制引用
郁科科,赵景波,罗大成..河西走廊明清时期旱灾与干旱气候事件初步研究[J].干旱区研究,2011,28(2):288-293,6.基金项目
教育部人文社科研究基地重大招标项目(05jjd770014) （05jjd770014）
