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Article

Allometric Equations for Predicting Culm Surface Area of Three Bamboo Species (Phyllostachys spp.)

1
Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Tsukide, Higashi-ku, Kumamoto 862-8502, Japan
2
Office for Campus Planning, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
3
Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
4
Department of Environmental Sciences, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
*
Author to whom correspondence should be addressed.
Forests 2018, 9(6), 295; https://doi.org/10.3390/f9060295
Received: 12 May 2018 / Revised: 24 May 2018 / Accepted: 24 May 2018 / Published: 25 May 2018
(This article belongs to the Section Forest Inventory, Modeling and Remote Sensing)
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. View Full-Text
Keywords: allometric equation; carbon cycling; culm respiration; culm surface area; Phyllostachys allometric equation; carbon cycling; culm respiration; culm surface area; Phyllostachys
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MDPI and ACS Style

Inoue, A.; Miyazawa, Y.; Sato, M.; Shima, H. Allometric Equations for Predicting Culm Surface Area of Three Bamboo Species (Phyllostachys spp.). Forests 2018, 9, 295. https://doi.org/10.3390/f9060295

AMA Style

Inoue A, Miyazawa Y, Sato M, Shima H. Allometric Equations for Predicting Culm Surface Area of Three Bamboo Species (Phyllostachys spp.). Forests. 2018; 9(6):295. https://doi.org/10.3390/f9060295

Chicago/Turabian Style

Inoue, Akio, Yoshiyuki Miyazawa, Motohiro Sato, and Hiroyuki Shima. 2018. "Allometric Equations for Predicting Culm Surface Area of Three Bamboo Species (Phyllostachys spp.)" Forests 9, no. 6: 295. https://doi.org/10.3390/f9060295

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