A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China

The identification of vulnerable people and places to flood is crucial for effective disaster risk management. Here, we combine flood hazard and social vulnerability index to capture the potential risk of flood. In this paper, Nanjing was taken as the case study to explore the spatial pattern of soc...

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Autores principales:	Yi Chen, Zhicong Ye, Hui Liu, Ruishan Chen, Zhenhuan Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	social vulnerability flood susceptibility risk zoning community Nanjing Medicine R
Acceso en línea:	https://doaj.org/article/6eb95a1f1b2249e4bade1f29488f5d41
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id	oai:doaj.org-article:6eb95a1f1b2249e4bade1f29488f5d41
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spelling	oai:doaj.org-article:6eb95a1f1b2249e4bade1f29488f5d412021-11-11T16:42:40ZA GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China10.3390/ijerph1821115971660-46011661-7827https://doaj.org/article/6eb95a1f1b2249e4bade1f29488f5d412021-11-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/21/11597https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601The identification of vulnerable people and places to flood is crucial for effective disaster risk management. Here, we combine flood hazard and social vulnerability index to capture the potential risk of flood. In this paper, Nanjing was taken as the case study to explore the spatial pattern of social vulnerability towards flood at the community scale by developing an index system. Based on the flood risk results of ArcSWAT, the risk of flood disaster in Nanjing was evaluated. The results show the following. (1) Social vulnerability exhibits a central–peripheral pattern in general, which means that the social vulnerability degree is high in the central city and decreases gradually to the suburbs. (2) The susceptibility to flood disaster has a similar circle-layer pattern that is the highest in the urban centre, lower in the exurban areas, and the lowest in the suburb areas. (3) By using the GIS-based zoning approach, communities are classified into four types by comprehensively considering their flood susceptibility and social vulnerability. The spatial pattern is explained, and policy recommendation for reducing flood risk is provided for each type of community. The research has important reference significance for identifying the spatial pattern of social vulnerability to flood and then formulating targeted adaptation countermeasures.Yi ChenZhicong YeHui LiuRuishan ChenZhenhuan LiuHui LiuMDPI AGarticlesocial vulnerabilityflood susceptibilityrisk zoningcommunityNanjingMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 11597, p 11597 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	social vulnerability flood susceptibility risk zoning community Nanjing Medicine R
spellingShingle	social vulnerability flood susceptibility risk zoning community Nanjing Medicine R Yi Chen Zhicong Ye Hui Liu Ruishan Chen Zhenhuan Liu Hui Liu A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China
description	The identification of vulnerable people and places to flood is crucial for effective disaster risk management. Here, we combine flood hazard and social vulnerability index to capture the potential risk of flood. In this paper, Nanjing was taken as the case study to explore the spatial pattern of social vulnerability towards flood at the community scale by developing an index system. Based on the flood risk results of ArcSWAT, the risk of flood disaster in Nanjing was evaluated. The results show the following. (1) Social vulnerability exhibits a central–peripheral pattern in general, which means that the social vulnerability degree is high in the central city and decreases gradually to the suburbs. (2) The susceptibility to flood disaster has a similar circle-layer pattern that is the highest in the urban centre, lower in the exurban areas, and the lowest in the suburb areas. (3) By using the GIS-based zoning approach, communities are classified into four types by comprehensively considering their flood susceptibility and social vulnerability. The spatial pattern is explained, and policy recommendation for reducing flood risk is provided for each type of community. The research has important reference significance for identifying the spatial pattern of social vulnerability to flood and then formulating targeted adaptation countermeasures.
format	article
author	Yi Chen Zhicong Ye Hui Liu Ruishan Chen Zhenhuan Liu Hui Liu
author_facet	Yi Chen Zhicong Ye Hui Liu Ruishan Chen Zhenhuan Liu Hui Liu
author_sort	Yi Chen
title	A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China
title_short	A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China
title_full	A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China
title_fullStr	A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China
title_full_unstemmed	A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China
title_sort	gis-based approach for flood risk zoning by combining social vulnerability and flood susceptibility: a case study of nanjing, china
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6eb95a1f1b2249e4bade1f29488f5d41
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A GIS-Based Approach for Flood Risk Zoning by Combining Social Vulnerability and Flood Susceptibility: A Case Study of Nanjing, China

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