New information for managing Copaifera multijuga Hayne for oleoresin yield

Medeiros, Raquel da Silva; Vieira, Gil; Almeida, Danilo Roberti Alves de; Fo, Mario Tomazello

doi:10.1016/j.foreco.2018.02.009

Cited by 14 publications

(9 citation statements)

References 14 publications

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“…Due to its economic importance, Copaifera species have been subject to strong anthropic pressure for oil-resin extract, even though the mode is most sustainable currently (PIERI, MUSSI and MOREIRA, 2009;MEDEIROS et al, 2018). The conservation methods and more comprehensive studies are important for more detailed information, for provides a better economic exploitation form for the species.…”

Section: Introductionmentioning

confidence: 99%

Relações morfométricas para <em>Copaifera langsdorffii</em> (Desf.) Kuntze na região norte de Minas Gerais, Brasil

Silva¹,

Gama

Araújo

et al. 2020

Ecol. Nutr. Flor.

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Copaifera langsdorffii specie occurs throughout Brazil and is of great economic importance, mainly due to its production of oil-resin used for various pharmacological purposes. The objective of this study was to analyze the morphometric relationships in C. langsdorffii stand in northern region of Minas Gerais state, Brazil. Twenty trees were randomly sampled and were measured: stem circumference at 1.3 m height, total height (Ht) and crown diameter (CD). Morphometric indices were estimated. Correlations between dendrometric and morphometric variables were obtained through the Pearson matrix. The morphometric relations of crown proportion (CP), crown area (CA), formal of crown (FC), degree of slenderness (DS), salience index (SI), coverage index (CI) and vital space (VS) presented values of 15.26%, 25.06 m², 1.47, 16.35, 21.70, 0.47 and 7.01, respectively. Strong positive correlations were found in: diameter at breast height (DBH) in relation to CD and CA; Ht with crown proportion (CP) and DS; the formal of crown (FC) with the CI and VS, and between the CI and VS. The morphometric indices made it possible to understand the few magnitude of stand variation. The species can be characterized as facilitating management. Relações morfométricas para Copaifera langsdorffii (Desf.) Kuntze na região norte de Minas Gerais, BrasilResumo: A espécie Copaifera langsdorffii ocorre em todo o território brasileiro e tem grande importância econômica devida, principalmente, à sua produção do óleo-resina utilizado para diversos fins farmacológicos. O objetivo deste estudo foi analisar as relações morfométricas em uma população de C. langsdorffii na região norte de Minas Gerais, Brasil. Foram amostradas 20 árvores ao caso, das quais se mensurou a: circunferência do fuste à altura de 1,3 m, a altura total (Ht) e o diâmetro da copa (CD). Foram estimados índices morfométricos. Correlações entre as variáveis dendrométricas e morfométricas foram obtidas através da matriz de Pearson. As relações morfométricas proporção de copa (CP), área da copa (CA), formal da copa (FC), grau de esbeltez (DS), índice de saliência (SI), índice de cobertura (CI) e espaço vital (VS) apresentaram valores de 15,26%, 25,06 m², 1,47, 16,35, 21,70, 0,47 e 7,01, respectivamente. Correlações fortemente positivas foram encontradas em: diâmetro à altura do peito (DBH) em relação ao CD e CA; Ht com a proporção da copa (CP) e o DS; o formal da copa (FC) com o CI e o VS e entre o CI e o VS. Os índices morfométricos possibilitaram compreender pouca magnitude de variações na população. A espécie pode ser caracterizada como facilitadora ao manejo.

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Section: Introductionmentioning

confidence: 99%

Relações morfométricas para <em>Copaifera langsdorffii</em> (Desf.) Kuntze na região norte de Minas Gerais, Brasil

Silva¹,

Gama

Araújo

et al. 2020

Ecol. Nutr. Flor.

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“…Many researchers have tried to identify the factors that influence oleoresin production from Copaifera spp., relating differences to species of the genus, the size of the trees, the seasonality of extraction, the position of trees in the landscape, plus other environmental and genetic characteristics (Alencar, 1982;Baima et al, 1999;Barbosa et al, 2009;Ferreira & Braz, 2001;Martins et al, 2013;Medeiros & Vieira, 2008;Medeiros, Vieira, Almeida, & Tomazello Filho, 2018;Newton, Watkinson, & Peres, 2011;Oliveira, Lameira, & Zoghbi, 2006;Plowden, 2001;Rigamonte-Azevedo, Wadt, & Wadt, 2006;Roquette et al, 2018;Wadtet al, 2007). Although diverse studies have attempted to identify the factors that interfered in the yield of oleoresin, no consensus has been reached about the factors that determine the oleoresin yield from Copaifera spp.…”

Section: Introductionmentioning

confidence: 99%

“…Research conducted to date has raised the hypothesis that genetic and physiological factors are related to the production of copaiba oleoresin (Alencar, 1982;Martins et al, 2013;Medeiros & Vieira, 2008). However, tree physiological processes may affect yield, which could vary by forest type, hydrology, soil fertility, growth, interspecific competition, and intensity of exploitation (Alencar, 1982;Medeiros & Vieira, 2008;Medeiros et al, 2018;Newton et al, 2011;Plowden, 2003;Roquette et al, 2018). In addition, tree size has also been highlighted as a determinant factor of yield, due to the relationships between physiological activity and tree growth with the production of copaiba oleoresin (Medeiros & Vieira, 2008;Medeiros et al, 2018;Roquette et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…However, tree physiological processes may affect yield, which could vary by forest type, hydrology, soil fertility, growth, interspecific competition, and intensity of exploitation (Alencar, 1982;Medeiros & Vieira, 2008;Medeiros et al, 2018;Newton et al, 2011;Plowden, 2003;Roquette et al, 2018). In addition, tree size has also been highlighted as a determinant factor of yield, due to the relationships between physiological activity and tree growth with the production of copaiba oleoresin (Medeiros & Vieira, 2008;Medeiros et al, 2018;Roquette et al, 2018). Newton et al (2011) states that understanding the relationships between genetic, morphological, and environmental factors, with the production of non-timber products, is key to creating sustainable extraction protocols for resources.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of oleoresin yield from Copaifera spp. in primary forest in meridional Amazon

Roquette

Drescher

Brondani

et al. 2019

MYB

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El objetivo de este estudio fue investigar la relación entre las variables dendrométricas y del suelo con el rendimiento de aceite de Copaifera spp. y ajustar una ecuación para predecir la productividad en bosque primario. En el área de la investigación, 30 árboles de Copaifera spp. fueron seleccionados como muestras para la extracción del aceite por un período de 24 horas, con el uso de la barrena con 1,91 cm (3/4"). Además, fueron colectadas informaciones sobre el tamaño de los árboles y las características del suelo superficial en los alrededores de cada árbol. Se aplicó el análisis de componentes principales para verificar la relación de las variables con el rendimiento de aceite y, posteriormente, fue ajustada una ecuación para predecir este rendimiento mediante análisis de regresión. La única variable relacionada con el rendimiento de aceite fue la altura del fuste, y fue selecionada como el modelo que presentó mejor coeficiente de determinácion (0,84) y error típico de estimación (13,11%). Por lo tanto, se concluyó que el rendimiento del aceite de Copaifera spp. en bosque primario tiene una correlación positiva y significativa con la altura del fuste, mientras que las otras variables dendrométricas y del suelo superficial no presentaron correlación significativa con el rendimiento de aceite.

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“…is a native tree species, widely distributed in the Brazilian territory and of great economic importance, especially in the Amazon region, due to the good quality of its wood and the oilresin production. The economic importance of the oil produced and extracted from species of the genus Copaifera in general has stimulated the development of studies about the species management, aiming at gains in product quality and yield (MEDEIROS et al, 2018). However, the effect of forest management in the wood of these trees, especially in conditions of natural forest, is still discussed in the literature in a very incipient way.…”

Section: Introductionmentioning

confidence: 99%

DIAMETRIC GROWTH AND PROPERTIES OF Copaifera langsdorffii DESF. BY SECOND CUTTING CYCLE

Carmo

Latorraca

Santos

et al. 2018

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The aim of this study was to analyze forest management effects in the diametric growth and wood anatomical, chemical and physical properties of Copaifera langsdorffii trees, in an Ombrophilous Open Forest (state of Mato Grosso, Brazil). The forest management effects were determined through a comparative study between the wood properties of 10 years before and 10 years after the first logging, in 1987. Multivariate associations among the anatomical characteristics, macro and micronutrient, wood density, and current annual increment (ICA) were evaluated to every growth period through the two steps cluster analysis. The results indicated that the following characteristics were relevant to distinct the periods studied: ICA, vessel frequency, and wood density. C. langsdorffii respond to stimuli caused by forest management, adapting to the increase of resources availability, due to the opening gaps, and showing growth increase with reduction of wood density, which may indicate variations on the wood properties. Keywords: Wood quality, forest management, tropical wood. ResumoCrescimento diamétrico e propriedades do lenho de Copaifera langsdorffi desf. De segundo ciclo de corte. O objetivo do presente estudo foi analisar os possíveis efeitos do manejo florestal no crescimento diamétrico e nas propriedades anatômicas, químicas e físicas da madeira de Copaifera langsdorffii, em Floresta Ombrófila Aberta (Mato Grosso, Brasil). O efeito do manejo florestal foi determinado por meio de um estudo comparativo entre as características tecnológicas do lenho correspondente a dez anos antes e dez anos após a primeira exploração, ocorrida em 1987. Foram avaliados: associações multivariadas entre as características anatômicas, macro e micronutrientes, densidade aparente e incremento corrente anual (ICA), em cada período analisado, por meio de análise de cluster em duas etapas. Os resultados indicaram que as seguintes características foram relevantes para a distinção dos períodos estudados: ICA, frequência de vasos e densidade da madeira. Diante dos resultados obtidos, pode-se concluir que a espécie arbórea C. langsdorffii responde aos estímulos provocados pelo manejo florestal, adaptando-se ao aumento da disponibilidade de recursos decorrentes da abertura de clareiras e apresentando ganhos de incremento com redução na densidade, o que pode indicar adaptações das propriedades da madeira. Palavras-chave: Qualidade da madeira, exploração florestal, madeira tropical.

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New information for managing Copaifera multijuga Hayne for oleoresin yield

Cited by 14 publications

References 14 publications

Relações morfométricas para <em>Copaifera langsdorffii</em> (Desf.) Kuntze na região norte de Minas Gerais, Brasil

Relações morfométricas para <em>Copaifera langsdorffii</em> (Desf.) Kuntze na região norte de Minas Gerais, Brasil

Estimation of oleoresin yield from Copaifera spp. in primary forest in meridional Amazon

DIAMETRIC GROWTH AND PROPERTIES OF Copaifera langsdorffii DESF. BY SECOND CUTTING CYCLE

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