Correlation of Above- and Below-ground Biomass Between Natural and Planted Stands of Pinus densiflora for. erecta of One Age-class in Gangwon Province
2011
Na, S.J., Korea Forest Research Institute, Suwon, Republic of Korea | Kim, C.S., Korea Forest Research Institute, Suwon, Republic of Korea | Woo, K.S., Korea Forest Research Institute, Suwon, Republic of Korea | Kim, H.J., Yeungnam University, Gyeongsan, Republic of Korea | Lee, D.H., Yeungnam University, Gyeongsan, Republic of Korea
This study was conducted to analyze correlation of above- and below-ground biomass and to drive regression equation suitable for estimating standing tree biomass between natural and planted stands of Pinus densiflora for. erecta of one age-class in Gangwon province, Republic of Korea. Total 40 trees, 10 from the naturally regenerated and 10 from the planted stands in each of two studied sites, were uprooted to measure height, diameter at root color (DRC), and the dry weights of stem, branches, and needles. The length, weight, and volume of the main and horizontal roots were also measured. Most of the above-ground traits except height were highly correlated with most of the other above-ground traits and the below-ground traits except the length of roots (p less than 0.05). Especially, the DRC, which is measured easily on the standing tree, was highly correlated with most of the traits in all studied stands (p less than 0.01). Thus, the DRC would be the most desirable trait to estimate not only above-ground biomass but also below-ground biomass. However, height was not a good variable to estimate standing tree biomass of Pinus densiflora for. erecta of one age-class in Gangwon province because it was not correlated with most of other traits. Regression equations derived from the current study could be used effectively as a basic data for estimating above-ground and below-ground biomass using DRC.
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