期刊
ENGINEERING GEOLOGY
卷 285, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.enggeo.2021.106051
关键词
Geohazard; Human settlement; Landslide; Mountainous region; Three Gorges Reservoir
资金
- National Natural Science Foundation of China [41977242, 41702294]
Mountainous regions are prone to geohazards, exacerbated by human activities, such as settlements. Lessons learned from past events involving interactions between human activities and geohazards can inform future site selections. Studying county seat relocations in Badong, China, provides insights into decision-making processes related to geohazards and human activities. A case history of a pre-historic landslide emphasizes the importance of proactive geohazard monitoring for disaster resilience enhancement.
Mountainous regions are inherently susceptible to geohazards, such as landslides and debris flows, with the threat of natural disasters compounded by human activities (mainly settlements). Lessons learned from past events that involved the interactions between human activities and geohazards are helpful for future site selections of human settlements in mountainous regions. To this end, the events associated with county seat relocations in Badong, a typical county in the Three Gorges Reservoir region, China, are studied from an engineering geologist's perspective. Over its history, the county seat was relocated multiple times, with the first relocation traced back to the Song dynasty (960-1279 CE) and the last two relocations linked to the Three Gorges Dam project. By studying geohazards and their interactions with human activities in these county-seat relocations, and through the reconstruction of these events, we secure insights into decision-making for these events. As part of the reconstruction of these relocation events, we analyze a giant pre-historic landslide, whose discovery ultimately prompted the third relocation. Using the case history of this landslide, we also discuss and emphasize the importance of proactive monitoring of geohazards for disaster resilience enhancement, recognizing that our knowledge of nature is vastly incomplete.
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