Aboveground Biomass and Nutrient Distribution of Korea Pine (Pinus koraiensis) Advance Growth in Deciduous Oak Forests
2011
Ji, D.H., Korea Forest Research Institute, Seoul, Republic of Korea | Byun, J.K., Korea Forest Research Institute, Seoul, Republic of Korea | Jeong, J.H., Korea Forest Research Institute, Seoul, Republic of Korea | Yi, M.J., Kangwon National University, Chuncheon, Republic of Korea
The occurrence of Korean pine (Pinus koraiensis) advance growth has been noticed in the deciduous oak forest being adjacent to the mature Korean pine plantation. the korean pine seedlings in the forest were regenerated naturally from harvested and transported Korean pine seeds and cones by rodents, mainly red squirrels. Mongolian oak (Quercus bariabilis), which formed dominant overstory, had close-to-normal distributions of height, diameter and age classes. Korean pine, which dominated the understory, had the reverse J-shaped height, diameter and age distributions that are expected of a shade tolerant species. Growing in the summer shade of the oak, Korean pine seedling had slow, but steady height growth during the past four decades. Total biomass of Korean pine seedling ranged from 2,835-8,541 kg ha-¹ and biomass allocation of Korean pine seedling was follows : stem (with bark) greater than foliage greater than branches greater than roots. Korean pine seedlings allocated more biomass to foliage and branches compare to planted Korean pine. The smaller root/shoot ratio of Korean pine seedling in the site is to believed to be result of competition for light. Contents of N and K for Korean pine seedling were greatest in foliage follow by branches, stem ad roots, while content of P was greater in the order of foliage greater than roots greater than stem greater than branches.
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