Allometric equations for predicting culm surface area of three bamboo species (Phyllostachys spp.)

Akio Inoue, Yoshiyuki Miyazawa, Motohiro Sato, Hiroyuki Shima

研究成果: ジャーナルへの寄稿学術誌査読

6 被引用数 (Scopus)

抄録

It is strongly debated whether bamboo forest ecosystems are a carbon sink or a carbon source because of insufficient knowledge regarding carbon loss via CO2 emissions from these forests. The surface area (S) of bamboo culms (stems) is important for estimating culm respiration, a major component of carbon cycling in bamboo forests. However, few studies have attempted to formulate predictive equations for S. In this study, we developed allometric equations for predicting S in three bamboo species grown in Kyushu Island, western Japan: Phyllostachys pubescens Mazel ex Houz., P. bambusoides Sieb. et Zucc. and P. nigra var. henonis. We used a power equation between S and diameter at breast height (D) and a linear equation between S and D × total culm length (H). The results indicated that P. bambusoides and P. nigra shared common site-independent equations. In contrast, P. pubescens required species-specific equations due to interspecific variation in culm slenderness and tapering. We also found that D was a better predictive variable than DH when quantifying S because of its satisfactory predictive performance and simplicity. These findings will be beneficial for evaluating the contribution of bamboo forest ecosystems to carbon cycling.

本文言語英語
論文番号295
ジャーナルForests
9
6
DOI
出版ステータス出版済み - 5月 25 2018

!!!All Science Journal Classification (ASJC) codes

  • 林業

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