Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Selection of Poplar Clones for Short Rotation Coppice in a Riparian Area

수변지 단벌기 목재에너지림에 적합한 포플러 클론 선발

  • Kim, Hyun-Chul (Division of Tree Breeding, National Institute of Forest Science Institute) ;
  • Lee, Sol-Ji (Division of Tree Breeding, National Institute of Forest Science Institute) ;
  • Lee, Wi-Young (Division of Tree Breeding, National Institute of Forest Science Institute) ;
  • Kang, Jun-Won (Division of Tree Breeding, National Institute of Forest Science Institute)
  • 김현철 (국립산림과학원 임목육종과) ;
  • 이솔지 (국립산림과학원 임목육종과) ;
  • 이위영 (국립산림과학원 임목육종과) ;
  • 강준원 (국립산림과학원 임목육종과)
  • Received : 2016.02.23
  • Accepted : 2016.03.08
  • Published : 2016.03.31
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Abstract

This study aims to select the most appropriate poplar clones for planting on short rotation coppice poplar plantations in a riparian area. The research investigated biomass production, nitrogen and carbon absorption with 2-year-old poplar (Populus spp.) clones including P. euramericana clone Eco28, P. deltoides hybrid clone 97-18, and P. alba ${\times}$ P. glandulosa hybrid clone 72-30. The average number of stems per stump was five and P. euramericana clone Eco28 had the greatest average number of live stems per stump with 5.9. The average stem diameter was 23.2 mm, and P. deltoides hybrid clone 97-18 achieved the largest average diameter with 25.4 mm. The average annual above-ground biomass production of Populus deltoides hybrid clone 97-18 was 16.1 ton/ha/year, followed by P. alba ${\times}$ P. glandulosa hybrid clone 72-30 and P. euramericana clone Eco28, 12.3 and 5.4 ton/ha/year, respectively. The average annual nitrogen uptake of poplar clones was 46.5 kg/ha/year. P. alba ${\times}$ P. glandulosa hybrid clone 72-30 had the highest average, 63.1 kg/ha/year. The average of annual carbon absorption was estimated 5.3 ton/ha/year and Populus deltoides hybrid clone 97-18 showed the best results with 7.7 ton/ha/year. Based on the results given above, P. deltoides hybrid aspen clone 97-18 is considered as the most suitable poplar clones for wood biomass production on riparian areas.

연구는 수변지에 포플러 단벌기 목재에너지림을 조성한 후 2년생 포플러 클론들의 바이오매스 생산, 질소 및 탄소흡수량을 구명하여 수변지 단벌기 목재에너지림에 적합한 포플러 클론을 선발하는데 그 목적이 있으며, 공시수종은 이태리포플러 Eco28클론, 미류나무 교잡종 97-18클론 및 현사시나무 72-30클론 등의 포플러 3클론이다. 포플러 클론들의 평균 줄기 수는 5.0개로 나타났으며, 이태리포플러 Eco28클론이 5.9개로 가장 많았다. 포플러 클론들의 평균 줄기직경 생장은 23.2 mm로 나타났으며, 미류나무 교잡종 97-18클론이 25.4 mm로 가장 우수하게 나타났다. 포플러 클론별 연평균 바이오매스 생산량은 미류나무 교잡종 97-18클론이 16.1 ton/ha/year, 현사시나무 72-30클론이 12.3 ton/ha/year 그리고 이태리포플러 Eco28클론이 5.4 ton/ha/year로 나타나 미류나무 교잡종 97-18클론이 가장 우수하였다. 포플러 클론들의 평균 질소흡수량은 연간 46.5 kg/ha/year로 나타났으며, 현사시나무 72-30클론이 연간 63.1 kg/ha/year로 가장 높게 나타났다. 평균 탄소흡수량은 연간 5.3 ton/ha/year로 나타났으며, 미류나무 교잡종 97-18클론이 연간 7.7 ton/ha로 가장 높게 나타났다. 이와 같은 결과들을 고려할 때 미류나무 교잡종 97-18클론이 수변지 포플러 목재에너지림에 가장 적합한 포플러 클론이라 판단된다.

Keywords

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