Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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The Short-term Effects of Soil Brought and Subsoil Inversion on Growth and Tissue Nutrient Concentrations of Fraxinus rhynchophylla, Pinus densiflora, and Pinus koraiensis Seedlings in a Nursery

객토와 심토뒤집기 처리가 물푸레나무, 소나무, 잣나무 묘목의 초기 생장과 양분함량에 미치는 영향

  • An, Ji Young (Division of Forest and Biomaterials Science, Kyoto University) ;
  • Park, Byung Bae (Department of Environment and Forest Resources, Chungnam National University) ;
  • Byun, Jae Kyung (Korea Forestry Promotion Institute) ;
  • Cho, Min Seok (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Kim, Yong Suk (Division of Forest Soil and Water Conservation, Korea Forest Research Institute) ;
  • Han, Si Ho (Department of Environment and Forest Resources, Chungnam National University) ;
  • Kim, Se Bin (Department of Environment and Forest Resources, Chungnam National University)
  • 안지영 (교토대학교 산림생물자원학과) ;
  • 박병배 (충남대학교 산림환경자원학과) ;
  • 변재경 (한국임업진흥원) ;
  • 조민석 (국립산림과학원 산림생산기술연구소) ;
  • 김용석 (국립산림과학원 산림수토보전과) ;
  • 한시호 (충남대학교 산림환경자원학과) ;
  • 김세빈 (충남대학교 산림환경자원학과)
  • Received : 2014.08.13
  • Accepted : 2014.11.03
  • Published : 2015.03.31
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Abstract

The production of high quality seedlings is a very important phase in silvicultural systems for successful reforestation or restoration. The purpose of this study was to quantitatively measure both growth performances and nutrient responses of Fraxinus rhynchophylla, Pinus densiflora, and Pinus koraiensis seedlings, which are commercially planted in Korea, according to the different types of soil improvement treatments. We applied soil brought (hereafter 'brought'), subsoil inversion (hereafter 'subsoil'), and mixture of brought soil with soil on nursery bed (hereafter 'mixing') in a permanent national nursery. Silt and clay contents were the highest at the subsoil treatment and organic material, soil nitrogen and phosphorus concentrations were the lowest at the brought treatment. The growth of F. rhynchophylla was the lowest at the subsoil treatment, but there were no significant differences among treatments. There were significant differences in only root nutrient concentrations of F. rhynchophylla among treatments: nitrogen, phosphorus, and potassium concentrations were the lowest at the subsoil or brought treatment. Mixing treatment increased N contents with deduction of N concentrations ('dilution') because of more dry weight increase compared with the amount of N uptake. This study suggested mix of brought soil with soil on a nursery bed in a permanently used nursery can economically be an effective technique to improve soil quality.

숲 조성을 위한 조림체계(silvicultural systems)에서 건전한 묘목 생산은 매우 중요한 단계이다. 이 연구의 목적은 포지의 토양 개량이 물푸레나무, 소나무, 잣나무 묘목의 생장과 양분함량에 미치는 영향을 구명하는 것이다. 장기간 사용된 국유 포지 위에 새로운 토양을 30 cm 높이로 쌓은 '객토', 굴삭기를 이용하여 기존 포지를 깊이 100 cm까지 뒤집기 한 '심토뒤집기', 그리고 기존 포지 토양과 객토를 1:1로 혼합하여 30 cm 높이로 쌓은 '혼합' 처리를 3반복 처리한 후 토양특성, 생장 및 양분변화를 분석하였다. 미사와 점토의 함량은 심토뒤집기 처리에서 가장 높았고 유기물, 질소, 인 함량은 객토 처리구에서 가장 낮았다. 물푸레나무의 생장은 객토 처리에서 유의하게 낮았고 다른 수종에서는 처리 간 차이가 없었다. 물푸레나무 묘목의 식물체 조직 양분 농도는 모두 뿌리에서만 유의한 차이가 있었고, 질소, 인, 칼륨 농도는 심토뒤집기 또는 객토 처리에서 가장 낮았다. 물푸레나무는 혼합 처리에서 흡수한 질소량에 비해 생장이 더 증가하여 식물체 농도는 감소하고 양분 함량은 증가하는 '양분희석' 현상을 보였다. 이 연구는 기존 포지 토양과 객토를 1:1로 혼합한 방법이 경제적이면서도 악화된 포지 토양을 개량할 수 있음을 보여주고 있다.

Keywords

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Cited by

  1. The Effects of Soil Improvements on Growth and Tissue Nutrient Concentrations of Fraxinus rhynchophylla and Pinus densiflora Seedlings in a Nursery vol.19, pp.2, 2016, https://doi.org/10.13087/kosert.2016.19.2.41