Biomass Expansion Factors of Natural Japanese Red Pine (Pinus densiflora) Forests in Korea

Xiaodong Li, Myong Jong Yi, Yowhan Son, Pil Sun Park, Kyeong Hak Lee, Yeong Mo Son, Rae Hyun Kim, Mi Jeong Jeong

Research output: Contribution to journalReview articlepeer-review

13 Citations (Scopus)


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).

Original languageEnglish
Pages (from-to)381-386
Number of pages6
JournalJournal of Plant Biology
Issue number6
Publication statusPublished - 2010 Dec

Bibliographical note

Copyright 2010 Elsevier B.V., All rights reserved.


  • Biomass conversion and expansion factor
  • Biomass expansion factor
  • Default value
  • Japanese red pine
  • Root/shoot ratio

ASJC Scopus subject areas

  • Plant Science


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