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    Risk Assessment and Mitigation Strategies for Rainstorm-Induced Disaster Chains in Northwest China

    Source: Natural Hazards Review:;2025:;Volume ( 026 ):;issue: 001::page 04024050-1
    Author:
    Xiaoxue Zhao
    ,
    Zongxi Qu
    ,
    Junjie Zhang
    ,
    Yongzhong Sha
    DOI: 10.1061/NHREFO.NHENG-2163
    Publisher: American Society of Civil Engineers
    Abstract: The northwest region of China is susceptible to natural disasters that often form disaster chains with multiple intertwined hazards, posing serious threats to the local society. Therefore, it is crucial to analyze the characteristics of local disaster chains, assess their risks, and formulate targeted countermeasures. In this study, we extracted 85 typical disaster events from the disaster news in the northwest region from 2016 to 2023; we found that disaster chains triggered by heavy rain had the highest frequency in terms of word frequency and spatial distribution analysis. A disaster chain network topology diagram was constructed for heavy rain disaster chains in the northwest region considering three aspects: disaster-causing factors, disaster-prone environments, and disaster-bearing entities. Based on complex network theory, a risk assessment model was constructed using three aspects: risk probability, node risk loss, and edge vulnerability. Last, a practical risk assessment for heavy rain disaster chains in the northwest region was conducted. The results indicated that heavy rainfall is linked to high risks of flooding, mudslides, and collapse. In addition, 25 key chains with high-risk values were identified. Based on the risk assessment, engineering and nonengineering measures are proposed for key links and key chains in order to improve the region’s capacity for natural disaster prevention and disposal.
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      Risk Assessment and Mitigation Strategies for Rainstorm-Induced Disaster Chains in Northwest China

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4303847
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    contributor authorXiaoxue Zhao
    contributor authorZongxi Qu
    contributor authorJunjie Zhang
    contributor authorYongzhong Sha
    date accessioned2025-04-20T10:01:13Z
    date available2025-04-20T10:01:13Z
    date copyright10/28/2024 12:00:00 AM
    date issued2025
    identifier otherNHREFO.NHENG-2163.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4303847
    description abstractThe northwest region of China is susceptible to natural disasters that often form disaster chains with multiple intertwined hazards, posing serious threats to the local society. Therefore, it is crucial to analyze the characteristics of local disaster chains, assess their risks, and formulate targeted countermeasures. In this study, we extracted 85 typical disaster events from the disaster news in the northwest region from 2016 to 2023; we found that disaster chains triggered by heavy rain had the highest frequency in terms of word frequency and spatial distribution analysis. A disaster chain network topology diagram was constructed for heavy rain disaster chains in the northwest region considering three aspects: disaster-causing factors, disaster-prone environments, and disaster-bearing entities. Based on complex network theory, a risk assessment model was constructed using three aspects: risk probability, node risk loss, and edge vulnerability. Last, a practical risk assessment for heavy rain disaster chains in the northwest region was conducted. The results indicated that heavy rainfall is linked to high risks of flooding, mudslides, and collapse. In addition, 25 key chains with high-risk values were identified. Based on the risk assessment, engineering and nonengineering measures are proposed for key links and key chains in order to improve the region’s capacity for natural disaster prevention and disposal.
    publisherAmerican Society of Civil Engineers
    titleRisk Assessment and Mitigation Strategies for Rainstorm-Induced Disaster Chains in Northwest China
    typeJournal Article
    journal volume26
    journal issue1
    journal titleNatural Hazards Review
    identifier doi10.1061/NHREFO.NHENG-2163
    journal fristpage04024050-1
    journal lastpage04024050-15
    page15
    treeNatural Hazards Review:;2025:;Volume ( 026 ):;issue: 001
    contenttypeFulltext
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