Construction of one-way volume table for the three major useful bamboos in Japan

Inoue, Akio; Sakamoto, Shingo; Suga, Hideo; Kitazato, Haruka; Sakuta, Kotaro

doi:10.1007/s10310-012-0366-x

Cited by 18 publications

(17 citation statements)

References 26 publications

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“…Study of culm characteristics of bamboos at different age and diameter classes helps in selection of plus clump or culm which improves the commercial utilization of a particular species (Inoue et al 2013). Characterization of bamboo in relation to its anatomical, physical, mechanical and chemical properties helps to determine the maturation age, and this enhances processing and utilization (Hisham et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Culm characteristics and volume-weight relationship of a forest bamboo (Melocanna baccifera (Roxb.) Kurz) from northeast India

2015

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Culm characteristics of Melocanna baccifera, locally 'muli', culms at five different culm ages of 11 girth classes (5-6 to 15-16 cm) were studied from Cachar District of southern Assam, northeast India. We recorded internode length, internode diameter, number of internodes per culm, total culm height, total culm green weight and total culm volume of all five culm age classes. Data were gathered on 165 culms, each culm age class containing 33 culms with 3 culms per girth class. Culm height ranged from 3.2 to 15.3 m with highest mean of 9.15 m (in threeyear old culms) and maximum culm height was recorded in four-year old culms. Highest mean and maximum internode length (27.45 and 54.2 cm, respectively), internode diameter (3.12 and 4.75 cm, respectively) and total culm green weight (5.42 and 12.87 kg/culm, respectively) were recorded in three-year old culms and lowest in current-year culms. Best fitted regression models for all parameters were developed. Significant linear relationships between culm green weight and culm solid volume were documented for all five culm age classes. Their corresponding best-fit regression models were also developed.

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Section: Introductionmentioning

confidence: 99%

Culm characteristics and volume-weight relationship of a forest bamboo (Melocanna baccifera (Roxb.) Kurz) from northeast India

2015

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“…Therefore, many allometric equations have been developed to estimate stem surface area in various tree species based on commonly measured tree attributes such as diameter at breast height and total tree height [27][28][29][30][31]. Numerous equations have also been derived for estimating culm biomass or volume of bamboo species [11,[32][33][34][35][36][37][38], but only one study has investigated how S is related to other culm dimensions [39]. In Phyllostachys pubescens Mazel ex Houz., a common bamboo species in Asia with high potential for carbon sequestration [6,9,10,40], a power equation described the relationship between S and external culm diameter at breast height (D) [39].…”

Section: Introductionmentioning

confidence: 99%

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

Inoue

Miyazawa²,

Sato

et al. 2018

Forests

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It is strongly debated whether bamboo forest ecosystems are a carbon sink or a carbon source because of insufficient knowledge regarding carbon loss via CO 2 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.

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“…Although our consideration has been restricted to a particular species (i.e., moso bamboo), the conclusion may apply to other species of bamboo as well. For instance, madake (Phyllostachys bambusoides) and hatiku (Phyllostachys nigra) were found to show similar profiles in h(x) and r(x) [46,47] as presented in Figs. 8(a) and 8(b).…”

Section: Discussionmentioning

confidence: 70%

“…Nevertheless, an appropriate normalization procedure makes it possible to construct a universal law for the geometry of native-grown bamboos. A broadly accepted form of this law is the so-called Kunze's curve [44], which reads [45][46][47] …”

Section: Culm Radius Rmentioning

confidence: 99%

Self-adaptive formation of uneven node spacings in wild bamboo

2016

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Bamboo has a distinctive structure wherein a long cavity inside a cylindrical woody section is divided into many chambers by stiff diaphragms. The diaphragms are inserted at nodes and thought to serve as ring stiffeners for bamboo culms against the external load; if this is the case, the separation between adjacent nodes should be configured optimally in order to enhance the mechanical stability of the culms. Here, we reveal the hitherto unknown blueprint of the optimal node spacings used in the growth of wild bamboo. Measurement data analysis together with theoretical formulations suggest that wild bamboos effectively control their node spacings as well as other geometric parameters in accord with the lightweight and high-strength design concept.

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Construction of one-way volume table for the three major useful bamboos in Japan

Cited by 18 publications

References 26 publications

Culm characteristics and volume-weight relationship of a forest bamboo (Melocanna baccifera (Roxb.) Kurz) from northeast India

Culm characteristics and volume-weight relationship of a forest bamboo (Melocanna baccifera (Roxb.) Kurz) from northeast India

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

Self-adaptive formation of uneven node spacings in wild bamboo

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