明清时期沱江流域旱灾时空分异特征研究  

Research on the Spatio-Temporal Variation Characteristics of Drought Disasters in the Tuojiang River Basin during the Ming and Qing Dynasties

作　　者：蔡群 邓浩俊 CAI Qun;DENG Haojun(Tourism and Historical Culture College,Zhaoqing University,Zhaoqing Guangdong 526061,China)

机构地区：[1]肇庆学院旅游与历史文化学院,广东肇庆526061

出　　处：《乐山师范学院学报》2024年第12期66-70,90,共6页Journal of Leshan Normal University

基　　金：广东省哲学社会科学规划项目“明代以降南岭走廊聚落空间格局历史演变与影响因素研究——以湘粤走廊为中心”(GD23XZL11)。

摘　　要：通过系统收集旱灾数据,构建标准化的量化指标,建立旱灾数据库,并使用数理统计和地理统计方法进行时空特征分析。研究表明,明清时期沱江流域旱灾可划分为四个阶段:1368—1426年的旱灾较少期、1427—1649年的旱灾频繁期、1650—1776年的旱灾沉寂期、1777—1904年的旱灾密集期。其中,16世纪和19世纪旱灾较为频繁,19世纪旱灾影响程度最大。旱灾相对集中于4至9月份,以春旱、夏旱为主,持续时间长。明清时期沱江流域的旱灾频度自北往南呈增强趋势,下游旱灾发生量最多,其次是中游,上游最少。受灾影响程度最大的区域是中游地区,其次是下游地区和上游地区。旱灾较多的县区依次为内江、荣昌、富顺、资阳、隆昌、仁寿、德阳、资中、金堂等地。By systematically collecting drought disaster data,constructing standardized quantitative indicators,establishing a drought disaster database,and using mathematical and geostatistical methods for spatio-temporal characteristic analysis,this study reveals that drought disasters in the Tuojiang River Basin during the Ming and Qing dynasties can be divided into four phases:a period of less frequent droughts from 1368 to 1426,a period of frequent droughts from 1427 to 1649,a drought lull period from 1650 to1776,and a period of intensive droughts from 1777 to 1904.Droughts were more frequent in the 16th and 19th centuries,with the greatest impact of droughts in the 19th century.Droughts were relatively concentrated from April to September,with spring and summer droughts lasting for a long time.The frequency of droughts in the Tuojiang River Basin during the Ming and Qing dynasties showed an increasing trend from north to south,with the lower reaches experiencing the greatest number of droughts,followed by the middle reaches and the upper reaches.The region most affected by droughts was the middle reaches,followed by the lower reaches and the upper reaches.The counties with more droughts were Neijiang,Rongchang,Fushun,Ziyang,Longchang,Renshou,Deyang,Zizhong and Jintang.

关 键 词：明清时期 沱江流域 旱灾 时空特征 

分 类 号：K928.6[历史地理—人文地理学]