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作 者:张梦园 解建仓[1,2] 杨雪[1,2] ZHANG Mengyuan;XIE Jiancang;YANG Xue(Faculty of Water Resources and Hydroelectric Engineering,Xi’an University of Technology,Xi’an 710048,China;State Key Laboratory of Eco-Hydraulics in Northwest Arid Region,Xi’an University of Technology,Xi’an 710048,China)
机构地区:[1]西安理工大学西北旱区生态水利国家重点实验室,陕西西安710048 [2]西安理工大学水利水电学院,陕西西安710048
出 处:《人民黄河》2025年第2期67-73,共7页Yellow River
基 金:国家自然科学基金资助项目(52209035);陕西省教育厅重点科学研究计划项目(21JT032);西安理工大学博士科研启动项目(256082016)。
摘 要:山洪灾害时空异质特征研究是制定山洪灾害防治政策和措施的重要依据。为加强陕西省区域山洪灾害防治的针对性,采用标准差椭圆、重力模型等方法对山洪灾害时空分布特征进行分析,利用地理探测器定量评价陕北、关中、陕南3个区域山洪灾害驱动因子及其相互作用。结果表明:陕北山洪灾害高发期由8月提前至7月;山洪灾害高发区逐渐向陕南东南部转移;陕北、关中、陕南地区最强驱动降雨分别为暴雨、大雨、中雨,决策者应考虑不同区域间山洪灾害驱动力的差异,因地制宜制定防洪措施。The study of the spatial-temporal heterogeneity characteristics of flash flood disasters is an important basis for formulating policies and measures for flash flood disaster prevention and control.In order to strengthen the pertinence of flash flood prevention and control in Shaanxi Province,this paper used standard deviation ellipse and gravity model to analyze the spatial and temporal distribution characteristics of flash flood disasters,and used geographic detectors to quantitatively evaluate the driving factors and interactions of flash flood disasters in northern Shaanxi,Guanzhong and southern Shaanxi.The results show that the high incidence period of flash floods in northern Shaanxi has been advanced from August to July.The center of gravity of flash flood disaster is gradually moved from Guanzhong to southeastern Shaanxi.The driving factors of the strongest rainfall in northern Shaanxi,Guanzhong and southern Shaanxi are rainstorm,heavy rain and moderate rain,respectively,and decision-makers should consider the differences in the driving forces of flash flood disasters among different regions and formulate flood control measures according to local conditions.
关 键 词:山洪灾害 时空分布 标准差椭圆 地理探测器 陕西省
分 类 号:TV122[水利工程—水文学及水资源]
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