Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Nutrient Characteristics of Biomass, Forest Floor, and Soil between Plantation and Expansion Sites of Phyllostachys nigra var. henonis

솜대 조림지와 확산지의 바이오매스, 임상, 토양의 양분 특성

  • Kwak, You Sig (Department of Forest Resources, Gyeongsang National University) ;
  • Baek, Gyeongwon (Department of Forest Resources, Gyeongsang National University) ;
  • Choi, Byeonggil (Department of Forest Resources, Gyeongsang National University) ;
  • Ha, Jiseok (Department of Forest Resources, Gyeongsang National University) ;
  • Bae, Eun Ji (Forest Biomaterials Research Center, National Institute of Forest Science) ;
  • Kim, Choonsig (Department of Forest Resources, Gyeongsang National University)
  • 곽유식 (경상국립대학교 산림자원학과) ;
  • 백경원 (경상국립대학교 산림자원학과) ;
  • 최병길 (경상국립대학교 산림자원학과) ;
  • 하지석 (경상국립대학교 산림자원학과) ;
  • 배은지 (국립산림과학원 산림바이오소재연구소) ;
  • 김춘식 (경상국립대학교 산림자원학과)
  • Received : 2021.01.05
  • Accepted : 2021.03.02
  • Published : 2021.03.31
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Abstract

In this study, the relationships between bamboo expansion and the nutrient characteristics of bamboo biomass, the forest floor, and mineral soil (at 30-cm depth) were determined in unfertilized expansion sites and fertilized plantations of Phyllostachys nigra var. henonis in Jinju, Gyeongsangnam-do. Nitrogen and phosphorus concentrations in bamboo components (culm, branches, and foliage) were significantly higher in the plantation site than those in the expansion site (P < 0.05). However, the nutrient concentration of the forest floor did not differ significantly between the plantation and expansion sites. Mean organic carbon concentration at 0-30-cm soil depth was significantly higher in the plantation site (30.80 g kg-1) than that in the expansion site (15.64 g kg-1). In addition, total nitrogen, phosphorus, and exchangeable K+ at 0-30-cm soil depth were significantly higher in the plantation site than those in the expansion site. These results indicate that bamboo can spread to areas with low-nutrient concentrations in adjacent forests.

본 연구는 대나무 확산에 있어서 토양 성질이 미치는 영향을 조사하기 위해 매년 시비가 실시된 솜대 조림지와 미시비 확산지를 대상으로 바이오매스 부위별 양분 농도와 임상 및 토양 30 cm 깊이의 양분 특성을 비교하였다. 솜대 조림지의 잎, 가지, 줄기 내 질소와 인 농도는 확산지에 비해 유의적으로(P < 0.05) 높았으나, 임상의 양분 농도는 조림지와 확산지 사이에 유의적인 차이가 없었다. 토양 0~30 cm 깊이의 평균 유기탄소는 조림지가 30.80 mg g-1으로 확산지 15.64 mg g-1에 비해 유의적으로 높았다. 평균 전질소 농도의 경우 조림지 2.47 mg g-1, 확산지 1.24 mg g-1, 인은 조림지 10.27 mg kg-1, 확산지 5.61 mg kg-1, 포타슘은 조림지 0.27 cmolc kg-1, 확산지 0.16 cmolc kg-1로 조림지가 확산지에 비해 유의적으로 높았다. 본 연구 결과에 따르면 토양 양분 상태는 솜대의 인접 산림지역으로 확산에 큰 영향을 끼치지 않는 것으로 나타났다.

Keywords

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