ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Geohazards and Georisks
Volume 13 - 2025 | doi: 10.3389/feart.2025.1550360
This article is part of the Research TopicHigh-Altitude and Long-Runout Landslide Dynamics: Theory, Methods, and ApplicationsView all 7 articles
Formation Mechanism and Risk Assessment of Debris Flow Geological Disasters in Lihong Road, Litong District, Wuzhong City, Ningxia
Provisionally accepted
Hui Wang1Guorui Wang1Zhiyong Hu1Xiaofeng He1Yongfeng Gong1*Gang Zhang1Zheng He1
Jinkai Yan2
Yaoyao Zhang2*- 1Ningxia Hui Autonomous Region Land and Resources Survey and Monitoring Institute, Ningxia, China
- 2Chinese Academy of Geological Sciences, Beijing, China
Select one of your emails
You have multiple emails registered with Frontiers:
Notify me on publication
Please enter your email address:
If you already have an account, please login
You don't have a Frontiers account ? You can register here
The Lihong Road area in Litong District, Wuzhong City, Ningxia, is highly prone to debris flow disasters due to its steep topography, loose surface materials, and frequent extreme rainfall. This study investigates the formation mechanisms and hazard dynamics of debris flows in this area, with particular attention to both natural factors and anthropogenic influences, such as sand mining.A key innovation of this research lies in integrating terrain modification effects into FLO-2D numerical simulations under varying rainfall scenarios. The results reveal that intense precipitation, steep slopes, and abundant loose materials primarily contribute to debris flow initiation.Simulations show that human-induced topographic changes significantly alter flow patterns and exacerbate risk. The study identifies a critical rainfall threshold of 130.86 mm and a 1-hour triggering intensity of 50.86 mm. Hazard zoning based on flow velocity, deposition depth, and inundation range highlights the region's vulnerability, especially around infrastructure and farmland. This work provides a scientific basis for early warning, engineering mitigation, and regional disaster prevention strategies.
Keywords: Debris flow, Geological disaster, formation mechanism, numerical simulation, Wuzhong City
Received: 23 Dec 2024; Accepted: 14 May 2025.
Copyright: © 2025 Wang, Wang, Hu, He, Gong, Zhang, He, Yan and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Yongfeng Gong, Ningxia Hui Autonomous Region Land and Resources Survey and Monitoring Institute, Ningxia, China
Yaoyao Zhang, Chinese Academy of Geological Sciences, Beijing, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.