Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
권호 표지

Changes in Soil Chemical Properties after Thinning in Quercus acuta stand

간벌 후 붉가시나무 임분의 토양 특성 변화

  • Hwang, Jaehong (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Lee, Sang-Tae (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Park, Nam-Chang (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Choi, Jae-Chae (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Shin, Hyun-Cheol (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Lee, Kyung-Jae (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Lee, Kwang-Soo (Forest Practice Research Center, Korea Forest Research Institute)
  • 황재홍 (국립산림과학원 남부산림연구소) ;
  • 이상태 (국립산림과학원 남부산림연구소) ;
  • 박남창 (국립산림과학원 남부산림연구소) ;
  • 최재채 (국립산림과학원 남부산림연구소) ;
  • 신현철 (국립산림과학원 남부산림연구소) ;
  • 이경재 (국립산림과학원 남부산림연구소) ;
  • 이광수 (국립산림과학원 산림생산기술연구소)
  • Received : 2006.07.18
  • Accepted : 2006.11.28
  • Published : 2006.12.30
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Abstract

This study was carried out to investigate the changes in soil chemical properties after thinning for a Quercus acuta stand in Wan-do Arboretum, Jeollanam-do. The stem density after thinning was determined referring to that of Quercus acutissima with 10 cm diameter at breast height and soil samples were collected 7 years after thinning. There was no considerable difference in soil pH values after thinning. However, the concentrations of soil organic matter, total nitrogen and available phosphorus significantly increased after thinning. In addition, thinning significantly increased cation exchange capacity (C.E.C) and the concentrations of exchangeable cations ($K^+$, $Na^+$, $Ca^{2+}$, and $Mg^{2+}$). From this study, it was revealed that the nutrient concentrations of this study site were generally lower than those of other forest soils. Therefore, it is need to improve the warm temperate forests through thinning and to develop forest treatment for regeneration.

본 연구는 전남 완도수목원 내 붉가시나무 임분을 대상으로 간벌이 토양의 화학적 특성 변화에 미치는 영향을 조사하기 위하여 실시하였다. 간벌은 흉고 직경급 10 cm일 때의 상수리나무 잔존 본수를 기준으로 실시하였으며, 토양 시료는 간벌 후 7년이 경과한 이후 채취하였다. 간벌 후 토양 pH는 대조구와의 차이가 나타나지 않았으나, 토양 유기물, 전질소 및 유효인산 농도는 간벌 처리구가 대조구에 비해 높았다. 간벌 후 토양 내 양이온치환 용량(C.E.C)과 치환성 양이온($K^+$, $Na^+$, $Ca^{2+}$, $Mg^{2+}$) 농도 역시 증가하였다. 붉가시나무 임분 내 토양의 양분 농도를 조사한 결과 일반 산림 토양에 비해 낮은 것으로 조사되어, 적절한 간벌 등을 통한 난대림 임분 개선과 갱신을 위한 시업방안 개발이 보다 체계적으로 마련되어야 한다고 판단된다.

Keywords

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