| 太行山南麓气象灾害风险区划——以河南省卫辉市为例 |
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| 引用本文： | 田晓璐.太行山南麓气象灾害风险区划——以河南省卫辉市为例[J].农学学报,2017,7(2):42-47. |
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| 作者姓名： | 田晓璐 |
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| 作者单位： | 新乡市气象局,河南新乡,453003 |
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| 基金项目： | 新乡市科技发展计划项目“基于GIS的新乡市气象灾害风险评估和区划研究”(14SF01)。 |
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| 摘 要： | 为充分了解卫辉市气象灾害的时空分布特征,揭示太行山南麓复杂地形与气象灾害分布间的关系,选取卫辉市1961—2014年各乡镇灾情、DEM、GDP、辖区内19个自动气象站的降水及风速数据等,利用层次分析法及主成分分析法构建冰雹、大风、暴雨和综合气象灾害风险评估指标体系,并依托ArcGIS绘制分辨率为30 m×30 m的灾害风险区划图。结果表明:卫辉市冰雹灾害风险较高的地区主要分布在2条冰雹移动路径上;大风灾害风险分布较分散,除狮豹头、汲水镇、后河镇、李源屯镇之外的乡镇均偏高;暴雨灾害风险集中在卫河、共产主义渠附近;安都、顿坊店、上乐村镇、孙杏村镇的综合气象灾害风险较高。该研究可以提高当地气象服务的针对性和指导性,为制订防灾减灾措施提供科学依据。
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| 关 键 词： | 气象灾害 风险区划 层次分析法 主成分分析法 太行山南麓 |
| 收稿时间： | 2016/9/19 0:00:00 |
| 修稿时间： | 2016/12/16 0:00:00 |
Risk Zonation of Meteorological Disaster in Southern Taihang Mountains——Taking Weihui in Henan as an Example |
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| Abstract: | The paper aims to understand the temporal and spatial characteristics of meteorological disaster in Weihui, and reveal the relationship between the complex terrain of southern Taihang Mountains and meteorological disasters. The author used the data from 1961 to 2014, including disaster, DEM, GDP, daily precipitation and wind speed of 19 automatic meteorological stations, to construct the risk evaluation index system of hail, gale, rainstorm and comprehensive meteorological disaster by means of AHP and PCA; the zoning map with resolution of 30 m×30 m meters was drawn by ArcGIS. The results showed that: the high risk zones of hail disaster mainly distributed in two moving paths to the surrounding areas; the risk of gale disaster was rather dispersed and higher except that in Shibaotou, Jishui, Houhe and Liyuantun; rainstorm disaster was prone to take place around Wei River and Communist canal; overall, the risk of comprehensive meteorological disaster was higher in Andu, Dunfangdian, Shangle and Sunxing. The study can improve the pertinence and guiding of local meteorological service, and provide a basis to formulate the mitigation measures. |
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| Keywords: | Meteorological Disaster Risk Zonation AHP PCA Southern Taihang Mountains |
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