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http://dx.doi.org/10.11108/kagis.2018.21.4.145

Study on Applicability of Slope Types to Permission Standard for Forestland Use Conversion  

CHOI, Jung-Sun (Department of Forest Welfare Research, National Institute of Forest Science)
KWAK, Doo-Ahn (Department of Forest Welfare Research, National Institute of Forest Science)
KWON, Soon-Duck (Department of Forest Welfare Research, National Institute of Forest Science)
BAEK, Seung-A (Department of Forest Welfare Research, National Institute of Forest Science)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.21, no.4, 2018 , pp. 145-157 More about this Journal
Abstract
Mountainous areas are 64% in Korea and are allowed to be used by the permission standards of the "Mountainous Districts Management Act". In the act, slope and elevation criteria are defined to regulate the use of vulnerable land parcels to disaster. However, the standards cannot represent topographical variation in a land parcel such as terrain relief. Therefore, the applicability of slope type standard as a permission standard was tested using Catena in this study. Based on the theoretical grounds, two slope types were analyzed as 'risky slope' with disaster risk. The slope types of landslides in Namwon City were analyzed that 'risky slope' types were distributed about 57%. This study analyzed the forestland parcels that could be used when applying the current permission standards and the parcels that were already used in Namwon City. The ratio of the 'risky slope' in the parcels was more than 50%. Therefore, it is necessary to prevent the mountain development in 'risky slope' by establishing permission standard related to slope types. In addition, this study suggested the ratio of 'risky slope' in the parcel for the permission standard for forestland use conversion.
Keywords
Mountainous Districts Management Act; forestland use conversion; permission standard; terrain classification method; risky slope;
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