Impacts of Typhoon “Mangosteen” No. 1822 on Rainfall Erosivity in Guangdong Province

Chen Shifa; Tian Guangzeng; Li Hangfei; Zhang Qingjun; Bai Yonghui; Wang Liyuan

doi:10.13961/j.cnki.stbctb.2019.03.038

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Impacts of Typhoon “Mangosteen” No. 1822 on Rainfall Erosivity in Guangdong Province

- Impacts of Typhoon “Mangosteen” No. 1822 on Rainfall Erosivity in Guangdong Province
- Bulletin of Soiland Water Conservation Vol. 39, Issue 3, Pages: 231-236(2019)
- 作者机构：
  
  1. 韶关学院旅游与地理学院,广东,韶关,512005
  2. 东华理工大学地球科学学院,江西,南昌,330013
  3. 河南大学环境与规划学院,河南,开封,475004
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2019.03.038
  CLC： K903;S157.1
- Published：2019
- 稿件说明：
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Chen Shifa, Tian Guangzeng, Li Hangfei, et al. Impacts of Typhoon “Mangosteen” No. 1822 on Rainfall Erosivity in Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2019, 39(3): 231-236.
DOI：

Chen Shifa, Tian Guangzeng, Li Hangfei, et al. Impacts of Typhoon “Mangosteen” No. 1822 on Rainfall Erosivity in Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2019, 39(3): 231-236. DOI： 10.13961/j.cnki.stbctb.2019.03.038.

摘要

[目的]探讨台风强降雨对降雨侵蚀力的影响，为土壤侵蚀的预测预防与治理提供一定的依据。[方法]利用2018年“山竹”台风登陆广东省带来的强降雨，以小时降雨侵蚀力模型为基础，计算“山竹”台风期间广东省降雨侵蚀力及时空分布。[结果]①广东省降雨侵蚀力与台风路径相关，在2018年9月15日粤东地区降雨侵蚀力最大，而16日与17日在粤西地区的降雨侵蚀最大；②山竹台风期间，广东省降雨侵蚀力呈现以阳春市为中心，向两侧降低，特别是在粤北和粤东地区的降雨侵蚀力最低；③降雨量大的站点，降雨侵蚀力也较大，但并不是一一对应的关系，雨强与降雨动能也是影响降雨侵蚀力的重要因素。[结论]台风带来的强降雨影响广东省15—17日降雨侵蚀力分布，台风移动路径决定降雨侵蚀力的大小。

Abstract

[Objective] The impacts of heavy rainfall caused by typhoon on rainfall erosivity were explored in order to provide a theoretical basis for the prediction

prevention and control of soil erosion.[Methods] Based on the hourly rainfall erosivity model

the temporal and spatial distribution of rainfall erosivity during typhoon Mangosteen landing in Guangdong Province in 2018 was calculated.[Results] ① The rainfall erosivity in Guangdong Province was related to the typhoon path. On the 15th

September 2018

the rainfall erosivity was the highest in the eastern part of Guangdong Province

while the largest rainfall erosivity in the west was occurred on the 16th and 17th; ② Rainfall erosivity in Guangdong Province tended to be centered arond Yangchun City and decreases to both sides during typhoon Mangosteen

especially in Northern and Eastern Guangdong Province; ③The stations with large rainfall also showed a large rainfall erosivity

but it was not a one-to-one correspondence. Rain strength and rainfall kinetic energy were also important factors affecting rainfall erosivity.[Conclusion] The heavy rainfall caused by typhoon affected the distribution of rainfall erosivity in Guangdong Province from 15th to 17th September 2018

and the path of typhoon movement determined the magnitude of rainfall erosivity.

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