Risk Assessment and Mitigation Strategies for Rainstorm-Induced Disaster Chains in Northwest ChinaSource: Natural Hazards Review:;2025:;Volume ( 026 ):;issue: 001::page 04024050-1DOI: 10.1061/NHREFO.NHENG-2163Publisher: 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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contributor author | Xiaoxue Zhao | |
contributor author | Zongxi Qu | |
contributor author | Junjie Zhang | |
contributor author | Yongzhong Sha | |
date accessioned | 2025-04-20T10:01:13Z | |
date available | 2025-04-20T10:01:13Z | |
date copyright | 10/28/2024 12:00:00 AM | |
date issued | 2025 | |
identifier other | NHREFO.NHENG-2163.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4303847 | |
description 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. | |
publisher | American Society of Civil Engineers | |
title | Risk Assessment and Mitigation Strategies for Rainstorm-Induced Disaster Chains in Northwest China | |
type | Journal Article | |
journal volume | 26 | |
journal issue | 1 | |
journal title | Natural Hazards Review | |
identifier doi | 10.1061/NHREFO.NHENG-2163 | |
journal fristpage | 04024050-1 | |
journal lastpage | 04024050-15 | |
page | 15 | |
tree | Natural Hazards Review:;2025:;Volume ( 026 ):;issue: 001 | |
contenttype | Fulltext |