Applicability Evaluation of Landslide Vulnerability Criteria for Decision on Landcreep-Vulnerable Areas in South Koreaopen access
- Authors
- Park, Jae-Hyeon; Park, Seong-Gyun; Kim, Hyun
- Issue Date
- Apr-2022
- Publisher
- MDPI
- Keywords
- landcreep; landslide; vulnerability criteria; slope type; parent rock
- Citation
- SUSTAINABILITY, v.14, no.8
- Indexed
- SCIE
SSCI
SCOPUS
- Journal Title
- SUSTAINABILITY
- Volume
- 14
- Number
- 8
- URI
- https://scholarworks.bwise.kr/gnu/handle/sw.gnu/1467
- DOI
- 10.3390/su14084447
- ISSN
- 2071-1050
- Abstract
- Landcreep, which is a natural hazard, frequently occurs in South Korea. However, despite many differences between general landslides and landcreep, landcreep is still treated as a kind of landslide. A bigger problem in this reality is that no verification has been made on whether the national landslide vulnerability criteria can be applied to the decision on landcreep-vulnerable areas. Therefore, this study was conducted to examine the applicability of the landslide vulnerability criteria for the decision on landcreep-vulnerable areas. For verification, first, as a result of a correlation analysis that extracted seven types of geomorphological environment criteria that are used in deciding landslide-vulnerable areas from 57 landcreep areas, a positive correlation was shown only in the slope type and the parent rock. Second, as a result of the evaluation of the landcreep area by applying the landslide vulnerability criteria, it was analyzed that 61.4% were areas with low or no possibility of the occurrence of landslides. Third, on the basis of the overlapping analysis of the landslide hazard map and landcreep areas, 67.6% were in Level 3 or lower, except for Levels 1 and 2, which had high hazards, and 21.5% were landcreep areas that were not included in the hazard levels. Applying the landslide vulnerability criteria for deciding on landcreep-vulnerable areas is not appropriate, and it is urgent to prepare landcreep vulnerability criteria.
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