摘要
通过对明代(1368年-1644年)277年河南地区干旱灾害史料的整理、分类与统计分析,从频次和强度两个方面探究河南地区干旱灾害的时空分布特征。结果表明:河南地区在明代共发生干旱灾害88次,其中1级旱灾35次,2级大旱灾48次,3级特大旱灾5次。在时间分布上,明代河南地区干旱灾害发生频次尽管有阶段性起伏,但总体来看,呈现出前期少,中后期多的特点,其中后期尤为突出;在发生季节上,干旱灾害多集中于春、夏季,秋季次之,冬季最少。在空间分布上,明代河南地区干旱灾害频次的区域分布与干旱灾害强度的区域分布也存在着一定程度的一致性,豫北地区既是干旱灾害易发区,也是干旱灾害最严重的地区;豫西地区干旱灾害发生频次偏低,但干旱灾害强度偏大;地处西南的南阳府(范围大体同于现在的唐白丹区)干旱灾害发生最少且强度最低。
By arrangement,classification and statistical analysis of historical data and literature on drought disasters during the Ming Dynasty in Henan Province,we explored the spatial- temporal distribution characteristics of drought events from both the frequency and intensity. The statistics analysis showed that drought disasters occurred 88 times in the Ming Dynasty,numbers of the slight,moderate and serious drought disasters were 35,48,and 5 respectively. On the temporal distribution,frequency of drought disasters in Henan Province during the Ming Dynasty showed a general upward trend,less in the early stage,more in the middle and later,especially severe in the later stage,although there were periodic ups and downs. On the seasonal distribution,drought disasters were more concentrated in spring and summer,less in autumn,and the least in winter. On the spatial distribution,there were a certain degree of consistency of the frequency distribution and intensity distribution of drought disasters,Yubei was highly prone to drought and were the worst drought area; the drought frequency in Yuxi was low but the intensity of drought disasters was high; Nanyang Fu（ roughly the area of current Tang Baidan Region） which located in the southwest was the least in both frequency and intensity of drought disasters.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2015年第5期174-179,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金面上项目(41271410)资助
关键词
明代
干旱灾害
时间特征
空间特征
Ming Dynasty drought disasters temporal characteristics spatial characteristics
