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Uprooting of tree induced by typhoon: A case study of super typhoon mangkhut in university town of shenzhen

  • Junwen Huang
  • , Yan Su
  • , Guanyu Zhu
  • , Rui Chen*
  • , Xiaofeng Wu
  • *Corresponding author for this work
  • Harbin Institute of Technology Shenzhen
  • Tsinghua University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Super typhoon Mangkhut resulted a large number of fallen tree in form of uprooting in university town of Shenzhen (UTSZ), which hadn’t happened for years. This study conducted a survey about tree uprooting induced by super typhoon Mangkhut in UTSZ, aiming to reveal main reasons for tree uprooting in UTSZ. Species of fallen trees were recognized. Fallen direction and height of fallen tree were measured. Also depth and diameter of root-soil plate and dry density of soil beneath root-soil plate were measured. The results showed that many fallen trees with uprooting in UTSZ had relatively small volume of root-soil plate which was not able to offer sufficient anchorage to tree during typhoon. One of solutions to avoid this phenomenon is not to select tree species with shallow root depth. Ponding was found in many places where uprooting occurred in UTSZ. Increase of degree of saturation of soil induced by ponding can significantly decrease soil strength which is a major component of anchorage of tree. Thus we recommend to modify the poor drainage condition of soil in UTSZ. Degree of compaction of soil may not be a main factor related to tree uprooting in UTSZ.

Original languageEnglish
Title of host publication7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
EditorsErdin Ibraim, Alessandro Tarantino
PublisherEDP Sciences
ISBN (Electronic)9782759890644
DOIs
StatePublished - 25 Jun 2019
Externally publishedYes
Event7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019 - Glasgow, United Kingdom
Duration: 26 Jun 201928 Jun 2019

Publication series

NameE3S Web of Conferences
Volume92
ISSN (Print)2555-0403
ISSN (Electronic)2267-1242

Conference

Conference7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
Country/TerritoryUnited Kingdom
CityGlasgow
Period26/06/1928/06/19

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