喀斯特地区易旱原因分析及旱灾防治策略研究--以贵州威宁县为例  

Analysis of causes of drought vulnerability and drought prevention strategy in karst area-A case study of Weining County,Guizhou Province

作　　者：史利利 张保国 商崇菊[2] 雷宏军[1] 潘红卫[1] 孙伟 SHI Lili;ZHANG Baoguo;SHANG Chongju;LEI Hongjun;PAN Hongwei;SUN Wei(North China University of Water Resources and Electric Power,Zhengzhou 450046;Guizhou Water Canservancy Scieace Research Institute,Guiyang 550002)

机构地区：[1]华北水利水电大学,郑州450046 [2]贵州省水利科学研究院,贵阳550002

出　　处：《中国防汛抗旱》2023年第5期52-56,共5页China Flood & Drought Management

基　　金：贵州干旱致灾调查、评估与区划项目(2022013);有机肥综合利用的农田环境效应评价研究(YK-2021-35)。

摘　　要：贵州威宁县是典型的喀斯特山区,具有独特的地理位置、气候特征、水文结构及下垫面性质,加之水资源开发利用率低,干旱灾害频发,是贵州省典型易旱地区之一。从自然地理、气候条件、水资源状况和水利工程现状等方面进行易旱原因分析,指出降雨少蒸发大、水资源分布不均、水源性缺水和工程性缺水等因素是威宁县干旱灾害易发频发的主要原因。经调研,提出干旱期应急对策,总结旱灾防治措施,以期为类似喀斯特地区抗旱减灾工作提供借鉴与参考。Weining County of Guizhou Province is a typical karst mountain area,with unique geographical location,climatic characteristics,hydrological structure and underlying surface properties,coupled with low water resources utilization and frequent drought disasters,and is one of the typical drought-prone areas in Guizhou Province.From the aspects of physical geography topography,climate condition,water resources endowment and status of water projects,causes of drought susceptibility are analyzed.It is pointed out that factors such as low rainfall,large evaporation,uneven distribution of water resources,prominent water shortage and engineering water shortage are the main reasons for the frequent occurrence of drought disasters in Weining County.After field research,emergency countermeasures in drought periods are proposed,and measures of drought prevention and control are summarized,so as to provide reference for drought mitigation in drought-prone areas of Karst.

关 键 词：喀斯特山区 易旱原因分析 旱灾防治 威宁县 

分 类 号：S423[农业科学—植物保护]