Risk Assessment of Rainstorm Flood Disaster in Main Flood Season in Sichuan-Yunnan Region

DU Huaming; DONG Tingxu

doi:10.13961/j.cnki.stbctb.2016.04.005

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Risk Assessment of Rainstorm Flood Disaster in Main Flood Season in Sichuan-Yunnan Region

- Risk Assessment of Rainstorm Flood Disaster in Main Flood Season in Sichuan-Yunnan Region
- Bulletin of Soiland Water Conservation Vol. 36, Issue 4, Pages: 27-31(2016)
- 作者机构：
  
  绵阳师范学院资源环境工程学院,四川,绵阳,621000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.04.005
  CLC：
- Published：2016
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DU Huaming, DONG Tingxu. Risk Assessment of Rainstorm Flood Disaster in Main Flood Season in Sichuan-Yunnan Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 27-31.
DOI：

DU Huaming, DONG Tingxu. Risk Assessment of Rainstorm Flood Disaster in Main Flood Season in Sichuan-Yunnan Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 27-31. DOI： 10.13961/j.cnki.stbctb.2016.04.005.

摘要

[目的] 对川滇地区主汛期暴雨洪水灾害风险等级分布及特征进行研究，以期为区域暴雨洪水灾害的防御提供理论参考。[方法] 采用反距离加权空间插值（IDW），自然灾害风险指数等方法。[结果] 暴雨洪水灾害的高、较高风险区主要集中在川东盆地和云南省南部边缘地区；中度风险区主要分布在川西南山地和云南省的大部分地区；较低灾害风险区零星分布在滇东高原、滇西北地区和川西高原东北部等地；低风险区主要位于川西高原地区。[结论] 大气环流、降水量、地形地貌、河网水系是影响川滇地区主汛期暴雨洪水灾害的主要因素，人类活动对区域下垫面性质的改变，是加剧暴雨洪水灾害的触动因素。

Abstract

[Objective] The characteristics of rainstorm flood disaster risk in main flood season were studied in Sichuan-Yunnan region to provide theoretical reference for defense of regional rainstorm and flood disasters. [Methods] Methods of inverse distance weighted interpolation(IDW) and natural disaster risk index were used. [Results] The highest risk area of rainstorm flood disasters was mainly concentrated in the eastern Sichuan Basin and the followed area was the southern part of Yunnan Province. Moderate-risk areas were mainly distributed in the southwest mountainous region of Sichuan Province and the most areas of Yunnan Province. Lower-risk area were sporadically distributed in East Yunnan Plateau

Northwest Yunnan Province and the northeastern part of Western Sichuan Plateau. The lowest-risk area was mainly located in Western Sichuan Plateau. [Conclusion] The main influence factors of rainstorm flood disasters were atmospheric circulation

precipitation

topography and river network; the change of land use due to human activities was the trigger of rainstorm flood disasters.

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