Allometric equations commonly used for estimating shoot biomass in short-rotation wood energy species: a review

Ríos-Saucedo, Julio César; Acuña, Eduardo; Cancino-Cancino, Jorge; Rubilar, Rafael; Návar-Cháidez, José de Jesús; Serna, Rigoberto Rosales

doi:10.5154/r.rchscfa.2015.05.022

Cited by 5 publications

(5 citation statements)

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“…(1995), Ruiz-Peinado et al (2011), Gómez-García et al (2014), Gómez-García (2013 and Albert et al (2014), used allometric models to evaluate biomass production using pseudovolume, which provides single predictor, which avoids effect of variance inflation connected with predictors collinearity. The majority of these studies reported a coefficient of determination (R 2 ) greater than 0.85 in the estimation of aboveground biomass (Ríos-Saucedo et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Allometric models for estimating aboveground biomass in tree sprouts of three dendroenergetic crops

Ríos-Saucedo¹,

Acuña²,

Cancino-Cancino³

et al. 2021

Dendrobiology

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Recurrent problems have been observed for biomass measurement in tree sprouts, mainly dueto differences in patterns of biomass distribution and the bias generated by using models for mature trees.The objective of this research was to evaluate models to estimate aboveground biomass in sprouts from two-year-old stumps of Short Rotation Woody Crops (SRWC) used for energetic purposes. The study was conducted in Central Chile (Bío-Bío region) under a complete block design and four replications.Three plant species were included: Eucalyptus globulus, E. denticulata, and Acacia dealbata, established in three population densities (5,000, 10,000 and 15,000 trees per ha). Two groups of nonlinear models wereused on three independent variables: root collar diameter (squared mean of two dominant stems), height (mean of two dominant stems) and number of epicormic stems. In the allometric model, the total aboveground biomass and the aboveground biomass by component were explained as the product of the mean square of the root collar diameter, mean height of the two dominant new sprouts and total number of epicormic sprouts as the predictive variable. Values of coefficient of determination (R2) ranged from 0.78 to 0.95 and RMSE ranged from 168 to 913 g. The species of E. globulus showed higher RMSE for biomass estimation in the all components except the branch component. The inclusion of dummy variables to identify the differences in each parameter of the models explained the seasonalityof the biomass accumulation in tree sprouts at 10, 21, and 31 months of age, improving the model goodness of fit RMSE by 27%. Accurate prediction of sprouts aboveground biomass was obtained by the models only evaluating the two dominant epicormic sprouts in the stump, avoiding the need of individual sprouts evaluation or using destructive methods for biomass measurement.

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Section: Discussionmentioning

confidence: 99%

Allometric models for estimating aboveground biomass in tree sprouts of three dendroenergetic crops

Ríos-Saucedo¹,

Acuña²,

Cancino-Cancino³

et al. 2021

Dendrobiology

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“…Šrámek for the calculation of the total woody biomass will also depend on the number of dominant shoots and the number of dead shoots on the stump. It is generally concluded that the powerlaw model estimates biomass better than the exponential model; however, in most studies on short rotation crops, the exponential model is usually applied (Ríos-Saucedo et al 2016).…”

Section: Iforest -Biogeosciences and Forestrymentioning

confidence: 99%

“…From the second rotation onwards, numerous shoots usually grow from each stump. This complicates total yield biomass prediction (Ríos-Saucedo et al 2016). That is why we tried to use and verify a simple and rapid method to calculate the amount of woody biomass in plantations of poplar hybrid clone J-105 (also referred to as Max-4).…”

Section: Introductionmentioning

confidence: 99%

Effective woody biomass estimation in poplar short-rotation coppices - Populus nigra × P. maximowiczii

Šrámek¹,

Weger²,

Bubeník³

et al. 2023

iForest

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Knowledge of the quantity of woody biomass of poplar short-rotation coppice (SRC) on agricultural land is a basic tool for management decisions like rotation length, volume production and the financial balance sheet of economic activities. The expansion of SRC requires a fast, reliable, easily applicable and cheap method for estimating the biomass yield, but existing methods are based on labour-demanding and lengthy measurements of all shoots per tree. The objective of this study was to verify a novel rapid biomass estimation method that uses averaged attributes of only a few largest shoots as a predictor variable for woody biomass in a poplar SRC, hybrid clone J-105 (Populus nigra × P. maximowiczii). Using data from 39 sample stumps with 187 shoots in total, we modelled shoot biomass as a function of an increasing number of shoots in interaction with different shoot parameters at two poplar SRC plantations. Results showed that the DBH of only three of the largest shoots per stump proved to be accurate estimators of the total shoot biomass of the individual stump. Comparison of biomass estimates at the stand level with a real amount of biomass indicated differences between 6-14%, depending on the site.

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“…El género Quercus incluye algunas de las especies más apropiadas para ser aprovechadas bajo el método silvícola de monte bajo (MSMB), debido a las propiedades de su madera, su productividad y la flexibilidad de su manejo (Serrada-Hierro, 2002;Gutiérrez Galindo et al, 2003;Dickmann, 2006;Matula et al, 2012;Ríos-Saucedo et al, 2016). El MSMB aprovecha la capacidad de regeneración vegetativa de algunas especies para establecer una masa compuesta completa o mayoritariamente de brotes (Hawley y Smith, 1972).…”

Section: Introductionunclassified

Caracterización anatómica y propiedades físicas de la madera de monte bajo de dos especies de Quercus del volcán Popocatépetl

Ortega-Gutiérrez,

Alvarado-Segura,

Machuca-Velazco

et al. 2023

MYB

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México cuenta con al menos 179 especies del género Quercus, algunas de las cuales son importantes para la silvicultura de monte bajo. La silvicultura de monte bajo, los tratamientos diferenciados y el uso de la madera basado en sus características tecnológicas pueden contribuir a optimizar el aprovechamiento de los bienes y servicios proporcionados por las especies del género Quercus. En este trabajo se evaluaron las características anatómicas y algunas propiedades físicas de la madera de brotes de Quercus laurina y Quercus obtusata, usualmente utilizadas para la obtención de carbón vegetal y leña en las comunidades aledañas al volcán Popocatépetl, en Puebla, México. Las características anatómicas observadas coinciden con descripciones precedentes de la madera de árboles monofustales, salvo por la presencia de engrosamientos helicoidales en fibras y porosidad anular observadas en Quercus obtusata. Respecto a las propiedades físicas, se registraron valores inferiores a los obtenidos por otros autores. Es conveniente evaluar a profundidad las características tecnológicas de la madera resultante de otras especies del género Quercus que provengan de tratamientos silvícolas con el método de monte bajo.

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Allometric equations commonly used for estimating shoot biomass in short-rotation wood energy species: a review

Cited by 5 publications

References 0 publications

Allometric models for estimating aboveground biomass in tree sprouts of three dendroenergetic crops

Allometric models for estimating aboveground biomass in tree sprouts of three dendroenergetic crops

Effective woody biomass estimation in poplar short-rotation coppices - Populus nigra × P. maximowiczii

Caracterización anatómica y propiedades físicas de la madera de monte bajo de dos especies de Quercus del volcán Popocatépetl

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