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Applicability Evaluation of Landslide Vulnerability Criteria for Decision on Landcreep-Vulnerable Areas in South Koreaopen access

Authors
Park, Jae-HyeonPark, Seong-GyunKim, 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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Park, Jae Hyeon
농업생명과학대학 (환경산림과학부)
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