농업생명과학연구 (Journal of agriculture & life science)

  • 제44권4호
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  • Pages.9-20
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  • 2010
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  • 1598-5504(pISSN)
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  • 2383-8272(eISSN)
경상대학교 농업생명과학연구원 (Institute of Agriculture & Life Science, Gyeongsang National University)
권호 표지

전라북도 지역의 산사태발생 특성분석

Analysis of Landslide Characteristics in Jeonlabuk-do, Korea

  • 박종민 (전북대학교 산림자원학과) ;
  • 마호섭 (경상대학교 환경산림과학부(농업생명과학연구원)) ;
  • 강원석 (경상대학교 환경산림과학부(농업생명과학연구원)) ;
  • 오경원 (전북대학교 대학원 임학과) ;
  • 박성학 (전북대학교 대학원 임학과) ;
  • 이성재 (서울대학교 농업생명과학대학 남부학술림)
  • Park, Chong-Min (Dept. of Forest Resources, Chonbuk Nat'l Univ.) ;
  • Ma, Ho-Seop (Div. of Forest Sci., Gyeongsang Nat'l Univ.(Insti. of Agric. Life Science)) ;
  • Kang, Won-Seok (Div. of Forest Sci., Gyeongsang Nat'l Univ.(Insti. of Agric. Life Science)) ;
  • Oh, Kyeong-Won (Dept. of Forestry, Graduate School, Chonbuk Nat'l Univ.) ;
  • Park, Seong-Hak (Dept. of Forestry, Graduate School, Chonbuk Nat'l Univ.) ;
  • Lee, Sung-Jae (Seoul National University Forest)
  • 투고 : 2010.04.20
  • 심사 : 2010.08.16
  • 발행 : 2010.08.31
⟨ 이전 논문 다음 논문 ⟩

초록

전라북도지역을 산사태 발생지 182개소를 대상지로 선정하여 강우의 특성 및 다양한 환경인자 별로 조사하여 산사태발생 특성을 분석하였다. 전라북도 지역을 산사태 발생 수는 총 182개소였으며, 산사태 발생 평균면적은 $1,859m^2$, 평균 발생토사량은 $4,41m^3$, 평균 길이와 폭은 각각 139m와 13m로 나타났다. 산림환경인자별 산사태 발생 빈도가 높은 인자는 사면경사도 $21{\sim}30^{\circ}$, 북쪽사면, 해발 401m~500m 이상, 종단사면 (오목), 횡단사면 (오목), 침엽수, 화성암, 토심은 15cm이하, 하천차수는 1차, 사면위치 (산복), 산사태 유형 (선상), 임종 (인공림), 수고 11m~15m, 흉고직경 중경목(17cm이상)에서 산사태 발생이 높은 것으로 조사되었다. 전라북도 지역의 산사태 발생면적과 산림환경인자와의 상관을 분석한 결과는 횡단사면 (볼록), 사면위치 (산정), 표고 (501이상), 임상 (침엽수), 모암 (퇴적암), 흉고직경 (17cm이상)과는 1% 수준 내에서 정의상관관계를 보였고, 경사 ($31{\sim}40^{\circ}$), 모암 (화성암), 흉고직경 (6~16)에서 1% 수준 내에서 부의 상관관계를보였다.

This study was carried out to analyze the landslide characteristics and forest environment factors on the landslide area of Jeonlabuk-do province in korea. The results obtained from this study were summarized as follows; The total number of landslide occurrence was 182 areas. The average area of landslide scar was $1,859m^2$, average length of the landslides was 139m, average width was 13m. The landslides were highly occurred in igneous rock and coniferous. And also, slope gradient was $21{\sim}30^{\circ}$, aspect was NE, altitude was 401~500m, vertical and cross slope was concave (凹),stream order was 1 order, soil depth was 15m below, landslide type was linear, forest type was artificial. The relationship between landslide area and environmental factors was a positive correlation with cross slope (convex), position (upper), altitude (501m), forest type (coniferous), parent rock (sedimentary rock), D.B.H. (over 17cm), but was negative correlation with slope gradient ($31{\sim}40^{\circ}$), parent rock (igneous rock), D.B.H. (6~16cm).

키워드

과제정보

연구 과제 주관 기관 : 산림청

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