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Journal of Agriculture ›› 2017, Vol. 7 ›› Issue (2): 42-47.doi: 10.11923/j.issn.2095-4050.cjas16090009

Special Issue: 农业气象

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Risk Zonation of Meteorological Disaster in Southern Taihang Mountains——Taking Weihui in Henan Province as an Example

  

  • Received:2016-09-19 Revised:2016-12-16 Accepted:2016-12-21 Online:2017-02-23 Published:2017-02-23

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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