明代河南地区干旱灾害的时空特征分析  

Spatial- temporal characteristics of drought disasters in Henan Province in Ming Dynasty

作　　者：李艳萍[1] 陈昌春[1] 张余庆[1] 毕硕本[1] 

机构地区：[1]南京信息工程大学遥感学院,南京210044

出　　处：《干旱区资源与环境》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

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.

关 键 词：明代 干旱灾害 时间特征 空间特征 

分 类 号：P468[天文地球—大气科学及气象学]