中国水利水电科学研究院学报（中英文）2026，Vol.24Issue(5)：648-658,11.DOI:10.3724/j.jiwhr.20250073
基于多指标评价的南流江流域气象-水文干旱传播特征研究
Propagation characteristics of meteorological-hydrological drought in Nanliu River based on multi-indicators
摘要
Abstract
Investigating drought propagation characteristics has become a major focus in drought research.Clarifying the propagation time and critical conditions of different types of drought is of great significance for drought-resistant regulation and emergency management within the basins.Based on precipitation data and the daily average flow of major hydrological stations in the Nanliu River from 1961 to 2022,the Standardized Precipitation Index(SPI)and the Standardized Runoff Index(SRI)are used to represent meteorological and hydrological droughts,respectively.Through parameters like drought lag time,response time,and propagation thresholds,this study quantifies the dura-tion and severity of meteorological-hydrological drought propagation within the basin.The results show that:The variations in SPI and SRI exhibit a high degree of consistency,with hydrological droughts occurring more frequently;however,the occurrence of extreme and severe meteorological droughts is more frequent;The propagation from meteorological to hydrological drought shows a lag effect,with average lag times of 0.3 months at Bobai station and 0.6 months at Changle station,and a response time of 2 months at both stations;The drought duration propagation thresholds for Bobai Station and Changle Station are 2.3 months and 1.8 months,respectively,while the drought severity propagation thresholds are 0.7 and 2.2,respectively.The results of this study provide a scientific basis for early drought prevention and mitigation efforts in Guangxi's coastal region.关键词
干旱频率/滞后时间/响应时间/传播阈值/南流江Key words
drought frequency/lag time/response time/propagation threshold/Nanliu River分类
天文与地球科学引用本文复制引用
朱晨雨,唐岗,陶昌弟,鲁帆,沈维鹏,易思宇..基于多指标评价的南流江流域气象-水文干旱传播特征研究[J].中国水利水电科学研究院学报（中英文）,2026,24(5):648-658,11.基金项目
环北部湾广西水资源配置工程重大科研课题 （）
广西重点研发计划项目(AB25069398) （AB25069398）
