广东省山洪时空特征与诱发因子解析  

Analysis of Spatiotemporal Characteristics and Inducing Factors of Flash Floods in Guangdong Province

作　　者：杨帆 康亚静 王乾 马美红 刘荣华[5] YANG Fan;KANG Ya-jing;WANG Qian;MA Mei-hong;LIU Rong-hua(Guangdong Flood Control Support and Rural Water Conservancy Center,Guangzhou 510635,China;China South to North Water Diversion Group Water Investment Co.,Ltd.,Beijing 100036,China;Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China;College of Geography and Environmental Sciences,Tianjin Normal University,Tianjin 300387,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)

机构地区：[1]广东省防汛保障与农村水利中心,广东广州510635 [2]中国南水北调集团水务投资有限公司,北京100036 [3]成都理工大学沉积地质研究院,四川成都610059 [4]天津师范大学地理与环境科学学院,天津300387 [5]中国水利水电科学研究院,北京100038

出　　处：《水电能源科学》2023年第9期81-84,共4页Water Resources and Power

基　　金：国家自然科学基金项目(42101086,42271095);中国水科院基本科研业务费专项(JZ110145B0012021)。

摘　　要：分析山洪灾害的时空分布特征对于山洪防治至关重要。以广东省为例,首先整理2017~2021年广东省历史山洪灾害资料,利用标准差椭圆、核密度等方法,分析其时空特征,进而探讨诱发因子的复杂交互关系。结果表明,山洪灾害共发生79起,主要集中在5~6月,时间分布不均。山洪灾害空间分布格局呈“东西分散”、“南北集聚”,其中北部的河源市、韶关市和梅州市属于山洪灾害高发区。短历时强降水是山洪灾害发生最主要的驱动因素,地形、植被覆盖及土地利用的影响也很显著。研究结果可为广东省山洪灾害防治提供参考。Analyzing the spatial and temporal distribution characteristics of flash flood disasters is crucial for flood control and prevention.Taking Guangdong Province as an example,this study first compiled historical data on flash flood disasters in Guangdong Province from 2017 to 2021.Using methods such as standard deviation ellipse and kernel density,the spatial and temporal characteristics were analyzed,and the complex interaction relationships of triggering factors were explored.The results show that there were a total of 79 flash flood disasters,mainly concentrated in May and June,with uneven temporal distribution.The spatial distribution pattern of flash flood disasters exhibited a"dispersed east and west,concentrated north and south"pattern,with the northern cities of Heyuan,Shaoguan,and Meizhou being high-risk areas for flash flood disasters.Short-duration heavy rainfall was the main driving factor for flash flood disasters,with significant influences from topography,vegetation cover,and land use.The findings of this study can provide reference for flash flood disaster prevention and control in Guangdong Province.

关 键 词：山洪灾害 时空特征 影响因素 广东省 

分 类 号：TV122[水利工程—水文学及水资源]