Risk assessment of geological disasters in Nyingchi, Tibet

To reduce the adverse effects of geological disasters on Nyingchi, this article selected nine highly correlated risk assessment factors for the types of geological disasters such as landslides and debris flows and used two methods of analytic hierarchy process and fuzzy analytic hierarchy process fo...

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Autores principales:	Wu Chenshuang, Guo Yonggang, Su Libin
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	nyingchi risk assessment fuzzy analytic hierarchy process gis Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/b3567613683140fda5fa0a364518f0a7
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id	oai:doaj.org-article:b3567613683140fda5fa0a364518f0a7
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spelling	oai:doaj.org-article:b3567613683140fda5fa0a364518f0a72021-12-05T14:10:48ZRisk assessment of geological disasters in Nyingchi, Tibet2391-544710.1515/geo-2020-0208https://doaj.org/article/b3567613683140fda5fa0a364518f0a72021-02-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0208https://doaj.org/toc/2391-5447To reduce the adverse effects of geological disasters on Nyingchi, this article selected nine highly correlated risk assessment factors for the types of geological disasters such as landslides and debris flows and used two methods of analytic hierarchy process and fuzzy analytic hierarchy process for analysis and comparison. The spatial overlay analysis of each factor with weight is carried out in ArcGIS to make a classification map of geological hazards in Nyingchi. Risk assessment of geological disasters such as collapses, landslides, and mudslides indicates that the slope, distance from the faults, and relative elevation difference of topography have severe impact on natural disasters; at least more than 60% of the areas belong to medium-, high-, and extremely high-risk areas, and it is urgent to strengthen protection and governance; the evaluation results of the fuzzy analytic hierarchy process are more in line with the actual survey situation and are more suitable for Tibet. This research is able to provide a basis for ecological protection, ecological restoration, and geological disaster prevention and management in southeastern Tibet. It also has important reference value for the coordinated development of urban and the environmental projects.Wu ChenshuangGuo YonggangSu LibinDe Gruyterarticlenyingchirisk assessmentfuzzy analytic hierarchy processgisGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 219-232 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nyingchi risk assessment fuzzy analytic hierarchy process gis Geology QE1-996.5
spellingShingle	nyingchi risk assessment fuzzy analytic hierarchy process gis Geology QE1-996.5 Wu Chenshuang Guo Yonggang Su Libin Risk assessment of geological disasters in Nyingchi, Tibet
description	To reduce the adverse effects of geological disasters on Nyingchi, this article selected nine highly correlated risk assessment factors for the types of geological disasters such as landslides and debris flows and used two methods of analytic hierarchy process and fuzzy analytic hierarchy process for analysis and comparison. The spatial overlay analysis of each factor with weight is carried out in ArcGIS to make a classification map of geological hazards in Nyingchi. Risk assessment of geological disasters such as collapses, landslides, and mudslides indicates that the slope, distance from the faults, and relative elevation difference of topography have severe impact on natural disasters; at least more than 60% of the areas belong to medium-, high-, and extremely high-risk areas, and it is urgent to strengthen protection and governance; the evaluation results of the fuzzy analytic hierarchy process are more in line with the actual survey situation and are more suitable for Tibet. This research is able to provide a basis for ecological protection, ecological restoration, and geological disaster prevention and management in southeastern Tibet. It also has important reference value for the coordinated development of urban and the environmental projects.
format	article
author	Wu Chenshuang Guo Yonggang Su Libin
author_facet	Wu Chenshuang Guo Yonggang Su Libin
author_sort	Wu Chenshuang
title	Risk assessment of geological disasters in Nyingchi, Tibet
title_short	Risk assessment of geological disasters in Nyingchi, Tibet
title_full	Risk assessment of geological disasters in Nyingchi, Tibet
title_fullStr	Risk assessment of geological disasters in Nyingchi, Tibet
title_full_unstemmed	Risk assessment of geological disasters in Nyingchi, Tibet
title_sort	risk assessment of geological disasters in nyingchi, tibet
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/b3567613683140fda5fa0a364518f0a7
work_keys_str_mv	AT wuchenshuang riskassessmentofgeologicaldisastersinnyingchitibet AT guoyonggang riskassessmentofgeologicaldisastersinnyingchitibet AT sulibin riskassessmentofgeologicaldisastersinnyingchitibet
_version_	1718371741397417984

Risk assessment of geological disasters in Nyingchi, Tibet

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