Energy Estimate and Carbon Stock in Short-Rotation Eucalyptus Stands

Magnago, Letícia Mayara; Arantes, Marina Donária Chaves; Vidaurre, Graziela Baptista; Moulin, Jordão Cabral; Trugilho, Paulo Fernando

doi:10.1590/01047760201622042209

Cited by 5 publications

(4 citation statements)

References 12 publications

(11 reference statements)

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“…However, even though it contained the highest calorific value, the energy production in the foliage was considerably lower than stem since it had a lower accumulation of biomass. Many studies published energy production of tree species was quantified by considering the calorific value and biomass (Magnago et al, 2016;Simetti et al, 2018;Visser et al, 2020). Besides improving carbon storage, higher biomass also increased the potential of energy in tree species.…”

Section: Energy Productionmentioning

confidence: 99%

Carbon storage and energy production of Eucalyptus urophylla developed in dryland ecosystems at East Nusa Tenggara

Sadono

Wardhana

Idris

et al. 2021

J.Degrade.Min.Land Manage.

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The development of Eucalyptus urophylla in dryland ecosystems plays an important contribution to support climate change mitigation and renewable energy diversification. However, the information about the potential of E. urophylla for carbon reduction and energy production is rarely documented, even though it is necessary as fundamental considerations to determine the best strategy for sustainable natural resources management, primarily in dryland ecosystems. This study aimed to quantify the carbon storage and energy production of E. urophylla established in dryland ecosystems at East Nusa Tenggara. The study site is located in a eucalyptus plantation managed by Timor Tengah Selatan Forest Management Unit. Destructive sampling was conducted on 25 sample trees that were evenly distributed from small to big ones. The percentage of carbon content in every tree component, namely stem, branch, and foliage, was determined using elemental analysis, while the calorific value of each tree component was analyzed using a bomb calorimeter. Carbon storage in each component was calculated by multiplying biomass and the percentage of carbon content, while the energy production was computed by multiplying high heating value and biomass from every tree component. The results found the mean carbon storage of E. urophylla in the study site was 55.51 kg tree-1 with a minimum of 6.34 kg tree-1 and a maximum of 184.76 kg tree-1. The percentage of carbon content in the foliage was lower than other tree components by approximately 34.1%. Interestingly, the calorific value of foliage was relatively higher than stem and branch with around 5,252 kcal kg-1. The energy production of E. urophylla ranged from 252.6 to 7,813.3 MJ tree-1 with an average of 2,357.87 MJ tree-1. According to the results, this study concluded the development of E. urophylla in dryland ecosystems demonstrated a meaningful contribution to carbon absorption and energy production at East Nusa Tenggara.

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Section: Energy Productionmentioning

confidence: 99%

Carbon storage and energy production of Eucalyptus urophylla developed in dryland ecosystems at East Nusa Tenggara

Sadono

Wardhana

Idris

et al. 2021

J.Degrade.Min.Land Manage.

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“…Eucalyptus plantations are distributed worldwide and are destined for the production of several goods, including: charcoal, pulp and paper, construction timber, firewood, honey, essential oil, ornamental, carbon sequestration, and solid wood products Magnago et al, 2016). In Brazil, eucalyptus plantations constitute most of the plantation areas, primarily due to the high growth rates and advanced silvicultural techniques applied in the management of these areas (Gonçalvez et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

HEIGHT-DIAMETER MODELS FOR Eucalyptus sp. PLANTATIONS IN BRAZIL

Filho

Mola‐Yudego

Ribeiro

et al. 2018

CERNE

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HEIGHT-DIAMETER MODELS FOR Eucalyptus sp. PLANTATIONS IN BRAZILFERRAZ FILHO, A. C.; MOLA-YUDEGO, B.; RIBEIRO, A.; SCOLFORO, J. R. S.; LOOS, R. A.; SCOLFORO, H. F. Height-diameter models for Eucalyptus sp. plantations in Brazil. CERNE, v. 24, n. 1, p. 9-17, 2018. HIGHLIGHTSHeight-diameter models are provided for eucalyptus plantations in Brazil.A wide variety of stand conditions (age and tree densities) were covered in the database.Mixed modeling was used due to the hierarchical structure of the data (trees in plots).The models use diameter, age, and dominant height as predictor variables. ABSTRACTThe use of height-diameter models have important applications in the management of eucalyptus plantations. The aim of this paper is to provide adequate height models based on the diameter and stand variables that could be easily used and applied to plantation's management. The data was based on tests located in Espírito Santo and Bahia. A total of 312 plots, including 35 different treatments (different initial planting densities, number and severity of thinning operations, fertilization regimes, among others), and four different clones. This resulted in 2,407 conditions for 85,608 tree measurements. The constructed equations were based on mixed-effect models, in order to accommodate possible autocorrelations, to address variations between sites and to obtain locally calibrated estimates. Among the different model structures and combination of variables tested and presented, the best model showed a coefficient of determination of 0.953 and 0.988, for the fixed and fixed+random parts, respectively. The model included a random factor for measurements-within-tree and tree-within-plot. The bias of the fixed part was 0.208 cm (0.0659%). We believe the models in this study can have broad applications in management and inventory methods applied to plantations. HEIGHT-DIAMETER MODELS FOR EUCALYPTUS SP. PLANTATIONS IN BRAZIL 10 CERNEFERRAZ FILHO et al.

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“…This process was implemented for every sub-sample of the tree components, including stem, branch, and foliage. Furthermore, the energy storage of tree components was quantified by multiplying total biomass and calorific value from each component [1] (González-García et al, 2016;Magnago et al, 2016;Simetti et al, 2018). To calculate the energy storage at the individual tree level, the energy storage from stem, branch, and foliage was summarized total energy storage at the individual tree level of E.…”

Section: Data Collectionmentioning

confidence: 99%

“…Furthermore, the energy storage of trees naturally comes from the solar energy that is absorbed through photosynthesis (Ellison et al, 2017) and then converted to biomass as the net primary productivity of plants (Robakowski et al, 2018). Therefore, several studies reported that the energy storage of a tree is determined based on the total calorific value of its biomass (Günther et al, 2012;González-García et al, 2016;Magnago et al, 2016;Simetti et al, 2018). This implies that an allometric equation is capable of supporting the quantification of energy storage in the eucalyptus tree.…”

Section: Introductionmentioning

confidence: 99%

Allometric Equation for Estimating Energy Production of Eucalyptus urophylla in Dryland Ecosystems at East Nusa Tenggara

Sadono¹,

Wardhana²,

Idris³

et al. 2022

jtfm

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A precise and accurate energy production quantification, particularly at the individual tree level is needed to understand the potential contribution of eucalyptus plantations to renewable energy development. However, measuring energy storage with a destructive method is inefficient because it requires a large amount of resources. The development of allometric equations is a realistic solution to solve this problem as it facilitates the efficient estimation of energy production from trees. Therefore, this study aims to develop an allometric equation for estimating the energy production of Eucalyptus urophylla in dryland ecosystems in East Nusa Tenggara. The destructive sampling was carried out on 25 sample trees which are evenly distributed from small to large dimensions, while the calorific value of each tree component was analyzed using the bomb calorimeter method. Furthermore, the energy production of each tree was counted by multiplying the calorific value with the total biomass accumulation. To develop an allometric equation, the analysis of regression was applied using several independent variables, such as diameter at breast height (D), combined squared diameter of breast and tree height (D2H), as well as D and H separately. The results showed that the energy production of E. urophylla at the study site varied from 252.56 to 7,813.30 MJ tree-1 with more than 90% accumulated in the stem, followed by foliage (4.62%) and branches (4.05%). The higher the tree dimension, the greater the energy production. Moreover, the equation lnŶ = lna + b.lnD + c.lnH was the best allometric model to estimate energy production with an accuracy of 95.2%. Based on the results, the allometric equation provides an accurate estimation of energy production in E. urophylla.

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Energy Estimate and Carbon Stock in Short-Rotation Eucalyptus Stands

Cited by 5 publications

References 12 publications

Carbon storage and energy production of Eucalyptus urophylla developed in dryland ecosystems at East Nusa Tenggara

Carbon storage and energy production of Eucalyptus urophylla developed in dryland ecosystems at East Nusa Tenggara

HEIGHT-DIAMETER MODELS FOR Eucalyptus sp. PLANTATIONS IN BRAZIL

Allometric Equation for Estimating Energy Production of Eucalyptus urophylla in Dryland Ecosystems at East Nusa Tenggara

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