산지 경계 추출을 위한 지형학적 변수 선정과 알고리즘 개발

최정선; 장효진; 심우진; 안유순; 신혜섭; 이승진; 박수진

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자료유형: 학술저널

저자정보: 최정선 장효진 심우진 안유순 신혜섭 이승진 박수진

저널정보: 한국지형학회 한국지형학회지 한국지형학회지 제25권 제3호

발행연도: 2018.1

수록면: 1 - 18 (18page)

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In Korea, 64% of the land is known as mountain area, but the definition and classification standard of mountain are not clear. Demand for utilization and development of mountain area is increasing. In this situation, the unclear definition and scope of the mountain area can lead to the destruction of the mountain and the increase of disasters due to indiscreet permission of forestland use conversion. Therefore, this study analyzed the variables and criteria that can extract the mountain boundaries through the questionnaire survey and the terrain analysis. We developed a mountain boundary extraction algorithm that can classify topographic mountain by using selected variables. As a result, 72.1% of the total land was analyzed as mountain area. For the three catchment areas with different mountain area ratio, we compared the results with the existing data such as forestland map and cadastral map. We confirmed the differences in boundary and distribution of mountain. In a catchment area with predominantly mountainous area, the algorithm based mountain classification results were judged to be wider than the mountain or forest of the two maps. On the other hand, in the basin where the non-mountainous region predominated, algorithm-based results yielded a lower mountain area ratio than the other two maps. In the two maps, we was able to confirm the distribution of fragmented mountains. However, these areas were classified as non-mountain areas in algorithm-based results. We concluded that this result occurred because of the algorithm, so it is necessary to refine and elaborate the algorithm afterward. Nevertheless, this algorithm can analyze the topographic variables and the optimal value by watershed that can distinguish the mountain area. The results of this study are significant in that the mountain boundaries were extracted considering the characteristics of different mountain topography by region. This study will help establish policies for stable mountain management.

#mountain area #mountain classification #topographical variable #optimal slope #profile curvature

참고문헌 (40)

참고문헌 신청

Barsch, D. / 1984 / The nature of mountain geomorphology / Mountain Research and Development 4(4):287~298

Chae, M. O. / 2008 / A Study on the Rationalization of Land Use to Strengthen National Competitiveness / Planning and Policy :38~47

Chae, M.O. / 2005 / Policy Directions for the Efficient Management of Forestland

Chorley, R. J. / 1969 / The drainage basin as the fundamental geomorphic unit / Water, earth and man :77~98

Conacher, A.J. / 1977 / The nine unit landsurface model: an approach to pedogeomorphic research / Geoderma

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