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KMID : 0368420100530060381
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Journal of Plant Biology
2010 Volume.53 No. 6 p.381 ~ p.386
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Biomass Expansion Factors of Natural Japanese Red Pine (Pinus densiflora) Forests in Korea
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Li Xiaodong
Yi Myong-Jong
Son Yo-Whan
Park Pil-Sun
Lee Kyeong-Hak
Son Yeong-Mo
Kim Rae-Hyun
Jeong Mi-Jeong
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Abstract
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Biomass expansion factors, which convert the timber volume (or dry weight) to biomass, are used to estimate the forest biomass and account for the carbon budget at the national or regional level. This study estimated the biomass conversion and expansion factors (BCEF), root to shoot ratio (R), biomass expansion factors (BEF) of natural Japanese Red Pine (Pinus densiflora Sieb. et Zucc.) forests based on direct field measurements and publications in Korea. This study attempted to fit the non-linear relationships between the biomass expansion factors (BCEF and BEF) and main stand factors [stand age, tree height, and diameter at breast height (DBH)]. The relationship between BEF and each main stand factor was expressed as a simple logarithmical equation. The BCEF was also expressed as a logarithmical equation of the tree height, DBH, and stand volume, whereas there was no significant relationship between BCEF and stand age. The mean value for BCEF, BEF, and R was 0.5821 Mg m?3 (n?=?22, SD?=?0.1196), 1.4465 (n?=?22, SD?=?0.2905), and 0.2220 (n?=?17, SD?=?0.0687), respectively. The values of the biomass expansion factors in this study may indicate much representativeness to estimate forest biomass in natural Japanese Red Pine forests of Korea than the default values given by the IPCC (2003, 2006).
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KEYWORD
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Biomass conversion and expansion factor, Biomass expansion factor, Default value, Japanese red pine, Root/shoot ratio
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