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ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Geohazards and Georisks
Volume 12 - 2024 | doi: 10.3389/feart.2024.1518377
This article is part of the Research Topic Prevention, Mitigation, and Relief of Compound and Chained Natural Hazards Volume II View all 11 articles

Inventory of landslide relics in Zhenxiong County based on human-machine interactive visual interpretation, Yunnan Province, China

Provisionally accepted
Zhiwen Xue Zhiwen Xue 1,2Chong Xu Chong Xu 2*Zhiqiang Zhang Zhiqiang Zhang 3,4Liye Feng Liye Feng 5Hao Li Hao Li 6Hourong Zhang Hourong Zhang 4Dengjie Zhu Dengjie Zhu 4Jingjing Sun Jingjing Sun 7Peng Wang Peng Wang 8Lei Li Lei Li 9Jingyu Chen Jingyu Chen 10
  • 1 University of Chinese Academy of Sciences, Beijing, Beijing, China
  • 2 National Institute of Natural Hazards, Ministry of Emergency Management (China), Beijing, China
  • 3 Electric Power Research Institute of China South Power Grid, Guangzhou, China
  • 4 Research Institute of China Southern Power Grid Co., Ltd., Guangzhou, Guangdong Province, China
  • 5 Jiangsu World Group, Danyang, Jiangsu Province, China
  • 6 Electric Power Research Institute, Yunnan Power Grid Co., Ltd, Kunming, Yunnan Province, China
  • 7 Zhejiang Metallurgical Survey and Design Co., Ltd., Hangzhou, Zhejiang Province, China
  • 8 Beijing Engineering Corporation Limited, Beijing, China
  • 9 Institute of Geology and Geophysics, Chinese Academy of Sciences (CAS), Beijing, Beijing Municipality, China
  • 10 Shougang Geological Exploration Institute, Beijing, China

The final, formatted version of the article will be published soon.

    Landslides and other geological hazards occur frequently in Zhenxiong County, posing significant threats to residents' lives and property. To comprehensively understand the developmental patterns of landslide disasters in this region, this study employed high-resolution satellite imagery from the Google Earth Pro platform, utilizing a human-machine interactive visual interpretation approach to conduct a detailed investigation of landslide occurrences. Through extensive literature review and data cleaning techniques, a comprehensive landslide inventory was established, comprising 3,979 landslide outlines. The total landslide-affected area is 319.20 km 2 , with the largest 2 landslide covering 4.55 km 2 and the smallest measuring 1,779 m 2 . The average landslide area is 80,215 m 2 , with the majority (73.54%) classified as medium-sized landslides. Statistical analysis reveals that the landslide area percentage (LAP) and landslide number density (LND) in the study area are 8.64% and 1.077 landslides per km 2 , respectively. The landslides are predominantly concentrated in four key areas: the confluence of Baishui River and Yanxi River in the northwest, the Dashuigou Reservoir, both sides of the valley from Heitang Village to Hongyan Village, and Xiaogou Village. The water system in these areas is well-developed, and the landforms are mostly middle and low mountains, with heavily dissected landscapes. The highest recorded landslide density is 3.380 landslides per km 2 . This landslide database offers critical data support for analyzing the spatial distribution of landslides in Zhenxiong County and provides valuable scientific insights for local governments and relevant authorities in disaster prevention, land-use planning, and risk assessment.

    Keywords: Geological disasters, landslide inventory, Visual interpretation, Disaster prevention and control, Zhenxiong County

    Received: 28 Oct 2024; Accepted: 26 Dec 2024.

    Copyright: © 2024 Xue, Xu, Zhang, Feng, Li, Zhang, Zhu, Sun, Wang, Li and Chen. 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: Chong Xu, National Institute of Natural Hazards, Ministry of Emergency Management (China), 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.