Nutritional, carbon and energy evaluation of Eucalyptus nitens short rotation bioenergy plantations in northwestern Spain

Gonzalez-Garcia, M. C.; Hevia, Andrea; Majada, Juan; Rubiera, F.; Barrio-Anta, Marcos

doi:10.3832/ifor1505-008

Cited by 19 publications

(11 citation statements)

References 31 publications

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“…The contribution of branches to total tree biomass continued to increase, although not at the same speed as that of the stem. These results agreed with those reported by González-García et al (2016b), who noted that increased tree growth or increased biomass production with age led to an asymptotic decline in the contribution of the foliage and fine and medium roots to the total biomass, whereas the contribution of timber, branches, and thick roots increased significantly.…”

Section: Discussionsupporting

confidence: 82%

ABOVEGROUND BIOMASS GROWTH AND YIELD OF FIRST ROTATION CUTTING CYCLE OF Acacia AND Eucalyptus SHORT ROTATION DENDROENERGY CROPS

et al. 2018

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-Chile has strong interest in biomass production for the purpose of generating bioenergy to accomplish environmental standards for clean energy production. However, no yield or productivity information is available about forest crop plantations established at high-initial planting densities dedicated to energy production. The objective of the present study was to provide long-term results of short-rotation forest crops research trials, investigating first cutting cycle most promising species biomass production. Plantations of Acacia melanoxylon, Eucalyptus camaldulensis, Eucalyptus globulus, and Eucalyptus nitens were established at initial stockings of 5,000; 7,500 and 10,000 trees ha -1 on marginal sites with important nutritional and hydric limitations in the Biobío Region, Chile. After 48 months, E. camaldulensis reached the highest biomass yield at initial stocking of 7,500 trees ha -1 (22.5 Mg ha -1 ) on dry land granitic soils, and E. nitens reached 35.2 Mg ha -1 on sandy soils. Initial stockings and biomass yields were directly related, but strongly conditioned by mortality, where greater initial stocking concurred with greater mortality after 4 years. The collar diameter and total height growth was lower at higher stockings.Keywords: Bioenergy; Growth and biomass yield; Eucalyptus spp. PRIMEIRO CICLO DE CORTE DE CRESCIMENTO BIOMASSA ACIMA DO SOLO E PRODUTIVIDADE DE ENSAIOS DE DENDROENERGIA DE Acacia E EucalyptusRESUMO -O Chile tem um forte interesse na produção de biomassa com o objetivo de gerar bioenergia para cumprir padrões ambientais para a produção de energia limpa. No entanto, não há informações de produtividade ou produtividade disponíveis sobre plantações de culturas florestais estabelecidas em densidades de plantio elevadas, dedicadas à produção de energia. O objetivo do presente estudo foi fornecer resultados a longo prazo de estudos de pesquisa de culturas florestais de rotação curta, investigando o primeiro ciclo de corte, a produção de biomassa de espécies mais promissoras. As plantações de Acacia melanoxylon, Eucalyptus camaldulensis, Eucalyptus globulus e Eucalyptus nitens foram estabelecidas em meias iniciais de 5.000; 7.500 e 10.000 árvores ha -1 em locais marginais com importantes limitações nutricionais e hídricas na Região Biobío, no Chile. Após 48 meses, E. camaldulensis atingiu o maior rendimento de biomassa na base inicial de 7.500 árvores ha -1 (22,5 Mg ha -1 ) em solos graníticos de terra seca e E. nitens atingiu 35,2 Mg ha -1 em solos arenosos. As meias iniciais e os rendimentos de biomassa foram diretamente relacionados, mas fortemente condicionados pela mortalidade, onde maior estocagem inicial concordou com maior mortalidade após 4 anos. O diâmetro do colar eo crescimento da altura total foram menores nas meias mais altas Palavras-Chave: Bioenergia; Crescimento e produção de biomassa, Eucalyptus spp. 2Revista Árvore. 2017;41(6):e410608 ACUNA E et al.

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Section: Discussionsupporting

confidence: 82%

ABOVEGROUND BIOMASS GROWTH AND YIELD OF FIRST ROTATION CUTTING CYCLE OF Acacia AND Eucalyptus SHORT ROTATION DENDROENERGY CROPS

et al. 2018

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“…Nevertheless, considering the mean values per tree, the highest ash contents corresponded to the willow and poplar clones, with values between 1.17 and 2.18%, whereas for both pine and chestnut the values were below 1%. These values are similar to those reported by other authors for productive species, e.g., Kumar et al [19] reported values of between 0.43 and 1.09% for the wood fraction in Eucalyptus hybrids, and González García et al [43] reported a value of 0.76% for the same fraction in Eucalyptus nitens. Therefore, the high ash content in crown and bark fractions reduces their fuel quality in comparison with the wood fraction.…”

Section: Proximate Analysissupporting

confidence: 90%

Evaluation of Tree Species for Biomass Energy Production in Northwest Spain

Álvarez‐Álvarez

Pizarro

Barrio-Anta

et al. 2018

Forests

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Three types of forest stands (chestnut coppice, maritime pine stands, and poplar and willow short-rotation woody crops (SRWC)) were evaluated to determine their potential for energy production. The properties of the main aboveground biomass fractions (wood, bark and crown) and also the whole tree were analysed, thus providing data that could be used for management purposes and for evaluating potential forest, biomass energy yields and atmospheric emissions. Proximate, elemental and energetic analyses of the biomass provided important information for evaluating the fuel potential. The energetic value of the biomass derived from the maritime pine stands was higher than that of the poplar and willow clonal stands and chestnut coppice stands. The high ash content of the chestnut bark, relative to that of the wood and crown material, is also an important consideration in relation to energy production. The proportion of carbon concentration accumulated per tree was very similar in all types of material studied, although the N and S contents were higher in the maritime pine stands than in the other stands. For this reason, selection of species and fractions can help to improve fuel quality and the efficiency of the combustion processes, and to minimize atmospheric emissions.

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“…In Pérez (1995), P concentrations in L. apiculata leaves were very similar to those of the present study (mean 0.11%). Regarding E. nitens, the N, P, and K foliage concentrations were lower than those reported by González-García et al (2015) and Bonomelli and Suárez (1999). In contrast, the nutrient concentrations in P. radiata are in the range reported in the literature (Zas and Serrada 2003;Hawkins et al 2010).…”

Section: Nutrient Content In Plant Organscontrasting

confidence: 67%

Screening of Native and Exotic Tree Species in Chile for Element Absorption from Dairy Slurry

Cuevas

Quiroz

2019

J Soil Sci Plant Nutr

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We studied the effect of fertigation with cattle slurry on native and exotic arboreal tree species in Chile. The objectives were to identify the most promising species for buffer strips to mitigate the stream pollution in dairy facilities, to determine where most nutrients accumulate (leaves, stems, or roots), and to test whether the native species are or are not a better biofilter than the exotic ones. We hypothesized that the individuals that were fertilized would have a higher nutrient concentration, nutrient accumulation, and growth than those non-fertilized. N and K concentrations were similar in fertilized trees and in the controls, while the P, Ca, Mg, and Na concentrations were higher in the control than those in the fertilized trees. Most species responded positively to fertilization on a dry matter basis. Luma apiculata, Drimys winteri, and Blepharocalyx cruckshanksii responded to fertilization showing a greater height and diameter growth. Generally, nutrients accumulated in leaves. Overall, the exotic Eucalyptus nitens was the species that accumulated more nutrients given its large growth rate. The native species that more commonly stood out in this study were D. winteri, Nothofagus dombeyi, and L. apiculata. In general, a minor proportion of the applied slurry was absorbed by trees, and we recommend the use of trees in biofilters as a complement to crop and pasture absorption.

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Nutritional, carbon and energy evaluation of Eucalyptus nitens short rotation bioenergy plantations in northwestern Spain

Cited by 19 publications

References 31 publications

ABOVEGROUND BIOMASS GROWTH AND YIELD OF FIRST ROTATION CUTTING CYCLE OF Acacia AND Eucalyptus SHORT ROTATION DENDROENERGY CROPS

ABOVEGROUND BIOMASS GROWTH AND YIELD OF FIRST ROTATION CUTTING CYCLE OF Acacia AND Eucalyptus SHORT ROTATION DENDROENERGY CROPS

Evaluation of Tree Species for Biomass Energy Production in Northwest Spain

Screening of Native and Exotic Tree Species in Chile for Element Absorption from Dairy Slurry

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