Growth, biomass, and energy quality of Acacia mangium timber grown at different spacings

Tonini, Hélio; Schwengber, Dalton Roberto; Morales, Marina Moura; Magalhães, Ciro Augusto de Souza; Oliveira, Jane Maria Franco de

doi:10.1590/s0100-204x2018000700002

Cited by 9 publications

(12 citation statements)

References 16 publications

(21 reference statements)

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“…In an experiment assessing the production of biomass of A. mangium as a function of planting space, Tonini et al (2018) found a value of 26.4 tons ha -1 of wood produced with spacing of 3.0 x 2.0 m at the age of four years. That is the same spacing used in the present study, but the trees were one year younger.…”

Section: Discussionmentioning

confidence: 99%

SEASONALITY OF THE BARK TANNINS CONTENT OF FIVE-YEAR-OLD Acacia mangium TREES GROWN IN NORTHEAST BRAZIL

et al. 2021

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This study aimed to assess the influence of the seasonality on the bark tannins content of Acacia mangium trees grown in the Northeastern Brazilian Region and the effect of soil preparation on the results. Two experimental plots of 1.0 ha each were submitted to different soil preparation methods, with two different intensities. The experimental design consisted of four treatments, two types of soil preparation and, two different bark collection seasons (end of the rainy and dry seasons). The bark of the trees was collected in each treatment and the contents of condensed tannins were determined. For each experimental treatment, 15 trees were harvested and debarked. Bark material was submitted to extraction with hot water, obtaining the total solids content (TSC), Stiasny index (I), and the condensed tannins content (CTC). There was no influence of the soil preparation method on the TSC, I, and CTC. However, there was a significant difference in these parameters for tree bark collected in the rainy season, with higher values. The less intensive soil preparation method is recommended due to its lower cost, and bark should be collected at the end of the rainy season for the best yield of condensed tannins.

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Section: Discussionmentioning

confidence: 99%

SEASONALITY OF THE BARK TANNINS CONTENT OF FIVE-YEAR-OLD Acacia mangium TREES GROWN IN NORTHEAST BRAZIL

et al. 2021

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“…The energy potential was calculated by following formula [9]: EP = [((HCV/10000)×(BT))/1]×(TD)………………………………………………….…”

Section: Tree Growth Biomass and Energy Potentialmentioning

confidence: 99%

Introducing a new variety of interspecific Acacia hybrid (Acacia mangium × A. auriculiformis) for renewable biomass energy

Sunarti

Nirsatmanto

Kartikawati

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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An interspecific Acacia hybrid between Acacia mangium and A. auriculiformis has various phenotypic characteristics. The hybrid progenies usually show better growth which is important to support wood-based industry. However, information on other potential uses of the species for renewable biomass energy was still limited. This study aims to observe the potency of Acacia hybrid as raw material for renewable bioenergy. The study was done in three permanent plots in clonal trial of Acacia hybrid established in Central Java following the method of SNI 7724-2011. The tree morphologies were characterized including stem form, branching, and crown-shape characteristic. Wood biomass and energy potential of the species was observed and derived from the growth and wood basic density. The result showed that there was various tree morphology in terms of leaf and stem form within the Acacia hybrid trees. At six years of age, the average of wood biomass was 37.85 Mg.ha−1 derived from the average of 13.9 m (height), 16.5 cm (DBH), and 567 kg.m−3 (wood basic density). While the estimated energy potential ranged from 14.50 to 21.99 toe.ha−1. The results of the study indicate that wood from the Acacia hybrid would be the potential resources for renewable biomass energy.

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“…A ocorrência de mesofilo isolateral, com parênquima paliçádico de duas a quatro camadas, como encontrado em Acacia mangium Willd, é considerada uma característica de espécies adaptadas as condições mais xéricas, de altas intensidades luminosas e temperatura (FAHMY, 1997). Essas características encontradas para Acacia mangium Willd podem justificar o fato da espécie se adaptar as condições de alta intensidade luminosa, quando plantada em área aberta, como mencionado por Tonini et al (2018).…”

Section: Anatomia Foliar De Acacia Mangium Willdunclassified

“…Acacia mangium Willd (Fabaceae-Mimosoideae), natural da região noroeste da Austrália, Papua Nova Guiné e leste da Idonésia, é uma espécie heliófita de rápido crescimento e ampla variedade de adaptabilidade (JUSOH et al 2017). Apresenta alta tolerância a condições de estresse hídrico e deficiência nutricional no solo (REYES et al, 2018), sendo considerada promissora para o reflorestamento nos trópicos, com grande potencial para plantio florestal com objetivo de produzir madeira serrada, celulose e geração de energia (TONINI et al 2018). O plantio comercial da espécie desempenha papel importante na manutenção do suprimento comercial de toras, reduzindo assim a demanda de madeira da floresta natural (JUSOH et al 2017).…”

Section: Introductionunclassified

INTERPRETAÇÕES ECOLÓGICAS DA ANATOMIA FOLIAR DE Acacia mangium WILLD (FABACEAE- MIMOSOIDEAE)

Silva¹,

Garcia²

2020

Enci Bio

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RESUMOAnálises da anatomia foliar contribuem para o entendimento dos processos ecológicos das espécies. O objetivo deste estudo foi caracterizar a anatomia foliar de Acacia mangium Willd e avaliar sua densidade estomática em plantios de diferentes idades, contribuindo para o conhecimento anatômico e entendimento dos processos ecológicos da espécie. Para isso, foram coletadas folhas de indivíduo de nove meses, um ano e nove meses e de três anos e sete meses e realizadas técnicas usuais para estudo de anatomia foliar. Acacia mangium Willd possui folhas anfiestomáticas com estômatos do tipo paracíticos e anisocíticos. Em vista frontal, as células epidérmicas possuem formato e tamanho irregular com paredes lisas. Em secção transversal, a epiderme é unisseriada, o mesofilo é do tipo isolateral e a nervura central apresenta formato biconvexo, sendo composta por dois feixes vasculares, do tipo colateral, na forma de arco. A densidade estomática média nos indivíduos de diferentes idades variou entre 29,74 e 33,08 estômatos/mm², porém há evidência moderada (p=0,06) para afirmar que a densidade estomática difere conforme a idade dos indivíduos. Em geral, as características anatômicas de Acacia mangium Willd justificam o seu rápido crescimento e adaptação em ambiente exposto a alta intensidade luminosa. PALAVRAS-CHAVE: densidade estomática, ecofisiologia, folhas anfiestomáticas. ECOLOGICAL INTERPRETATION OF THE LEAF ANATOMY OF Acacia mangium WILLD (FABACEAE-MIMOSOIDEAE)ABSTRACT Leaf anatomy analyzes contribute to the understanding of the ecological processes of the species. The objective of this study was to characterize the Acacia mangium Willd leaf anatomy and evaluate its stomatal density in different age plantings, contributing to the anatomical knowledge and understanding of the ecological processes of the species. For this, leaves were collected from individuals of nine months, one year and nine months and three years and seven months and usual techniques were used to study leaf anatomy. Acacia mangium Willd has amphistomatous leaves with paracytic and anisocytic stomata. In front view, epidermal cells have irregular shape and size with smooth walls. In cross section, the epidermis is uniseriate, the mesophyll is of the isolation type and the central vein has

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Growth, biomass, and energy quality of Acacia mangium timber grown at different spacings

Cited by 9 publications

References 16 publications

SEASONALITY OF THE BARK TANNINS CONTENT OF FIVE-YEAR-OLD Acacia mangium TREES GROWN IN NORTHEAST BRAZIL

SEASONALITY OF THE BARK TANNINS CONTENT OF FIVE-YEAR-OLD Acacia mangium TREES GROWN IN NORTHEAST BRAZIL

Introducing a new variety of interspecific Acacia hybrid (Acacia mangium × A. auriculiformis) for renewable biomass energy

INTERPRETAÇÕES ECOLÓGICAS DA ANATOMIA FOLIAR DE Acacia mangium WILLD (FABACEAE- MIMOSOIDEAE)

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