摘要
在全球气候变化影响下,自然灾害的发生频次及造成损失程度显著增加,科学评估自然灾害风险是实现风险有效管理及应对、优化国土空间开发保护格局的重要依据。本文基于自然灾害评价理论及三维风险矩阵方法,构建综合自然灾害风险评估指标体系,对江西省上饶市玉山县进行县域自然灾害综合风险评估及区划,并分析总结风险具体构成,提出县域国土空间重点防控区域。结果表明:研究区整体风险程度呈良好态势,绝大部分区域为中等及以下风险,高风险区面积极少且分布零星,较高风险区整体呈现为西北—东南方向上的“S”形分布带。按风险程度由高到低排列,各等级面积占全域比重分别为0.02%、12.54%、48.69%、7.18%、31.57%。县域范围内高、较高等级风险区是风险防范控制重点区域,在自然灾害的管控和防治工作中应依据风险的具体构成及内容采用对应措施。
Under the influence of global climate change,the frequency of natural disasters and the losses caused by it have increased significantly,while the risk evaluation of disasters is an important prerequisite for effective risk management and response.Based on the theory of natural disaster assessment and the method of three-dimensional risk matrix,this paper constructs an assessment index system,and then conducts comprehensive natural disaster risk assessment and regionalization on study area at the county scale of Yushan County,Shangrao City,Jiangxi Province.The results show that the research area is at risk overall but not prominent,and most areas are at low or medium risk.The high-risk districts are not obvious and scattered,followed by the second higher-risk areas,whose appearance like the character'S'in the northwest-southeast direction.According to the risk degree,arranged from high to low,the proportion of each level of area in the whole region was respectively 0.02%and 12.54%,48.69%,7.18%,31.57%.In order to reduce the risk in the high-level risk area effectively,corresponding measures should be adopted according to the specific composition and content of the realistic disaster risk.
作者
刘美娥
唐柏梁
刘慧
LIU Mei'e;TANG Bailiang;LIU Hui
出处
《小城镇建设》
2022年第8期35-41,共7页
DEVELOPMENT OF SMALL CITIES & TOWNS
基金
江西省重点研发计划项目“基于InSAR/物联网协同的地质灾害监测与应急预警技术研究”(编号:20201BBG71001)。
关键词
国土空间
自然灾害
风险评估
风险等级区划
玉山县
land space
natural disasters
risk assessment
risk level regionalization
Yushan County
