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Development of allometric relationships for accurate estimation of above- and below-ground biomass in tropical secondary forests in Sarawak, Malaysia

Published online by Cambridge University Press:  01 July 2009

Tanaka Kenzo*
Affiliation:
Bureau of International Partnership, Forestry and Forest Products Research Institute, Matsunosato 1, Tsukuba, Ibaraki 305-8687, Japan
Tomoaki Ichie
Affiliation:
Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
Daisuke Hattori
Affiliation:
United Graduate School of Agricultural Sciences, Ehime University, Matsuyama, 790-8566, Japan
Takao Itioka
Affiliation:
Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
Chihiro Handa
Affiliation:
Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
Tadahiro Ohkubo
Affiliation:
Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
Joseph Jawa Kendawang
Affiliation:
Forest Department Sarawak, Kuching, 93660, Malaysia
Masashi Nakamura
Affiliation:
Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
Mari Sakaguchi
Affiliation:
Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
Narumi Takahashi
Affiliation:
Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
Mayumi Okamoto
Affiliation:
Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
Ayumi Tanaka-Oda
Affiliation:
Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwa, Chiba, 277-8561, Japan
Katsutoshi Sakurai
Affiliation:
Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
Ikuo Ninomiya
Affiliation:
United Graduate School of Agricultural Sciences, Ehime University, Matsuyama, 790-8566, Japan
*
1Corresponding author. Email: mona@affrc.go.jp

Abstract:

We developed allometric relationships between tree size parameters (stem diameter at breast height (dbh), at ground surface (D0) and tree height) and leaf, stem, small-root (diameter <5 mm) and total root biomass in various tropical secondary-forest trees in Sarawak, Malaysia. In total, 136 individuals from 23 species were harvested to measure above-ground parts. Root systems of 77 individuals of 16 species were also excavated. The coefficients of correlation for the obtained allometric relationships between tree diameter and plant-part biomass showed high values, ranging from 0.83 to 0.99. In addition, there were few interspecific differences in relationships for all biomass parts, except for leaves. We also found relatively high coefficients of allometric relationships between tree height and plant-part biomass ranging from 0.83 to 0.94. Comparison of above- and below-ground biomass equations for various tropical rainforests implies that our allometric equations differ largely from the equations for tropical primary forests. Thus, choosing both above- and below-ground allometric equations for biomass estimation in tropical secondary forests of South-East Asia requires careful consideration of their suitability.

Information

Type
Research Article
Copyright
Copyright © Cambridge University Press 2009

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