Vulnerability assessment of urban landscape systems under risk of sea level rise superimposed with storm surge: a case study of Guangzhou
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College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China

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TU984

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    Abstract:

    In the context of global climate change and sea level rise, coastal disasters will have a significant impact on the landscape and socio-economic development of coastal cities. Guangzhou, a coastal city in the Pearl River Delta, was used to construct a “sensitivity adaptabilit” vulnerability assessment framework based on the land use and socio-economic data in the area. The vulnerability characteristics of urban landscape system in Guangzhou under three different scenarios of sea level rise superimposed with storm surge risk in the short-term (2030), the medium-term (2050) and the long-term (2100) were assessed. The results showed that the agricultural landscape, park green space, and wetland landscape had the largest inundation area under different risk scenarios in the future, while the industrial landscape and commercial and public service landscape had the most severe economic losses from the perspective of inundation scope and economic losses. The areas with high landscape vulnerability in the short-term were mainly concentrated in Liwan District, Baiyun District and Huangpu District in the central part of Guangzhou from the perspective of the overall spatial distribution of vulnerability. In the medium and long term, the risk of landscape vulnerability in Haizhu District in the central part of Guangzhou gradually increased. From the perspective of spatial distribution of various landscape vulnerability, the most vulnerable areas of agricultural landscape in the short-term are Panyu District and Nansha District in southern Guangzhou compared with other landscapes including the transportation landscape and residential landscape. In the mid-term and long-term stages, the vulnerability risks of various landscapes have increased to varying degrees, with significant changes in the vulnerability levels of park green spaces and wetland landscapes. This article systematically assessed the impact of sea level rise combined with storm surge on different types of urban landscapes in Guangzhou. It will provide decision-making reference for the risk management and prevention of coastal disasters in the future, and the construction of urban resilience in Guangzhou.

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陈崇贤,方言,刘京一. Vulnerability assessment of urban landscape systems under risk of sea level rise superimposed with storm surge: a case study of Guangzhou[J]. Jorunal of Huazhong Agricultural University,2023,42(4):53-63.

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History
  • Received:September 30,2022
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  • Online: August 30,2023
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