Potencial de produção de óleo-resina de copaíba (Copaifera spp) de populações naturais do sudoeste da Amazônia

Rigamonte-Azevedo, Onofra Cleuza; Wadt, Paulo Guilherme Salvador; Wadt, L. H. de O.

doi:10.1590/s0100-67622006000400011

Cited by 34 publications

(50 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The shape of the diameter distribution of regeneration was not negative exponential (i.e., inverted J). Negative exponential diameter and height distributions for Copaifera regeneration were observed by Resende [12] and Rigamonti-Azevedo [46], unlike our results (Table 4). Resende et al [12] observed a change in distributional shape over a three year observation period, wherein the number of regenerating Copaifera in smaller diameter classes decreased, but increased in the largest diameter class.…”

Section: Effects Of Reduced-impact Logging On Diameter Distribution Ocontrasting

confidence: 99%

Short-Term Effects of Reduced-Impact Logging on Copaifera spp. (Fabaceae) Regeneration in Eastern Amazon

Klauberg

Vidal

Silva

et al. 2017

Forests

View full text Add to dashboard Cite

Timber management directly influences the population dynamics of tree species, like Copaifera spp. (copaíba), which provide oil-resin with ecological and economic importance. The aim of this study was to evaluate the structure and population dynamics of Copaifera in unmanaged and managed stands by reduced-impact logging (RIL) in eastern Amazon in Pará state, Brazil. Based on a stem map of the study area, 40 Copaifera trees were randomly selected, where an equal number of trees were selected in managed and unmanaged stands. A transect of 10 × 100 m was centered at each tree (50 m each side) to assess Copaifera regeneration. Transects were subdivided into ten plots, of which six were systematically chosen to assess the height, diameter and number of Copaifera seedlings and saplings. The field assessment occurred in 2011 and 2013. To estimate the amount of sunlight transmitted to the forest floor, we computed canopy cover from airborne LiDAR data. According to the results, the abundance of Copaifera seedlings/saplings was higher in managed than unmanaged stands. About 5% of Copaifera regeneration was found between 45-50 m from the Copaifera tree while~73% of regeneration was concentrated within a 10 m radius of the Copaifera tree. We verified that the diameter distribution of Copaifera regeneration was not a negative exponential distribution, as is typical of most tree species in natural forest. Rather, the Copaifera regeneration had a spatially aggregated distribution. In this short-term analysis, the impact of timber management is not negatively affecting the population structure or dynamics of Copaifera regeneration.

show abstract

Section: Effects Of Reduced-impact Logging On Diameter Distribution Ocontrasting

confidence: 99%

Short-Term Effects of Reduced-Impact Logging on Copaifera spp. (Fabaceae) Regeneration in Eastern Amazon

Klauberg

Vidal

Silva

et al. 2017

Forests

View full text Add to dashboard Cite

show abstract

“…A maioria dos estudos baseia-se apenas em caracteres que permitem a identificação em nível de gênero e de morfotipos (Ferreira & Braz, 2001;Leite et al, 2001;Plowden, 2003;Rigamonte-Azevedo et al, 2006). Em pesquisas recentes, Medeiros & Vieira (2008) procederam, na Amazônia central, a identificação da espécie C. multijuga, para o morfotipo popularmente conhecido como copaíba mari-mari, assim como Alencar (1982).…”

Section: Introductionunclassified

O manejo da copaíba pelas etnias Arara e Gavião na Terra Indígena Igarapé Lourdes, Rondônia, Norte do Brasil

Souza

Higuchi

2014

Rev. Ceres

View full text Add to dashboard Cite

The production potential of oleoresin from 100 retapped and 36 first-time tapped trees of Copaifera multijuga Hayne was evaluated in the Indigenous Land Igarapé Lourdes (territory of Arara and Gavião ethnicities), Rondônia. The diameter at breast height (DBH) and the amount of oleoresin exuded was measured for each tree and the individuals were identified based on dendrological characteristics. The results indicate that relative frequency of yielding trees had similar pattern between retapped (39%) and those tapped for the first time (41.6%). The production ranged from 0 to 3.6 L/tree, with an overall average of 0.143 L/tree, where 0.157 L/tree was recorded for retapped and 0.104 L/tree for virgin trees. By excluding the non-yielding trees, the average yield of retapped trees is increased to 0.403 L/tree, while the virgins increased to 0.250 L/tree, but these differences were not statistically significant (t, p = 0.37). Retapped trees had higher average diameters (58 cm) and are statistically different (T, p = 0.001) from the virgins (46 cm). Positive correlation was found between production and diameter, being more significant for the virgins (0.61) than for the retapped trees (0.27). Despite the yield variability, there was a slight trend of lower oleoresin exudation from smaller DBH (30-40 cm) trees, which is one possible explanation for the lower production of virgin trees.Key words: Amazonia, non-timber forest products, management. O objetivo deste trabalho foi identificar e avaliar o potencial de produção de óleoresina de Copaifera multijuga Hayne, proveniente de 100 árvores re-exploradas e de 36 manejadas pela primeira vez no ano de 2008, na Terra Indígena Igarapé Lourdes (território das etnias Arara e Gavião), em Rondônia. Para cada árvore, foram medidos o diâmetro à altura do peito (DAP) e a quantidade de óleoresina liberada, e identificados os indivíduos, com base em características dendrológicas. Os resultados indicam que a frequência relativa de árvores produtivas teve padrão semelhante entre as re-exploradas (39%) e aquelas manejadas pela primeira vez (41,6%). A produção variou de 0 a 3,6 L/árvore, com média geral de 0,143 L/árvore, sendo 0,157 L/árvore para re-exploradas e 0,104 L/árvore para manejadas pela primeiras vez. Ao excluir as árvores improdutivas, as re-exploradas tiveram maior rendimento médio (0,403 L/árvore) do que as até então intactas (0,250 L/árvore), mas essas diferenças foram estatisticamente não significativas (t, p = 0,37). Árvores reexploradas têm médias diamétricas superiores (58 cm) e diferem estatisticamente (t, p = 0,001) das manejadas pela primeira vez (46 cm). Houve correlação positiva entre produção e diâmetro, sendo mais significativa para as até então intactas (0,61) do que para as re-exploradas (0,27). Apesar da variabilidade do rendimento, observou-se uma ligeira tendência, da menor liberação de óleoresina entre árvores com os menores DAPs (30 a 40 cm), sendo essa uma possível explicação para a menor produção encontrada para as árvores até então inexploradas.Palavras...

show abstract

“…In the state of Acre, Rigamonte-Azevedo (2006) found 29.4% of productive copaiba trees in a population of 273, and 40% in a population of 115 individuals, with an average yield of 2.92 liters per tree for both populations. In Amazonas State, Scudeller and Barbosa (2009) found 44% of productive individuals with a mean yield of 0.746 liters per tree.…”

Section: Environment Seedlingmentioning

confidence: 94%

“…Their fruit contains a ovoid seed surrounded by an aril. Flowering occurs between October and July and fruiting from June to October, with variations within these ranges depending on the region and climate, with no annual flourishing in some regions (VEIGA JR.;. In the region of Manaus, Amazonas, the flowering occurs from January to April and fruiting from March to August (BARBOSA et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Population Structure and Production of Copaiba Oleoresin Between Valleys and Hillsides of the Mining Area Oftrombetas River - Pará1

et al. 2016

View full text Add to dashboard Cite

-We aimed in this work to study natural populations of copaiba (Copaifera multijuga Hayne) on the Monte Branco mountain at Porto Trombetas-PA, in order to support sustainable management and the exploitation of oleoresin from copaiba. We studied the population structure of copaiba on hillsides and valleys of the south face of Monte Branco, within Saracá Taquera National Forest, where bauxite ore was extracted in the biennium 2013-2014 by Mineração Rio do Norte (MRN). We produced a 100% forest inventory of the specie and of oleoresin extraction in order to quantify the potential production of the remaining area. The density of copaiba individuals with DBH > 30 cm was 0.33 individuals per hectare in the hillside and 0.25 individuals per hectare in the valley. Both environments presented a density of 0.28 individuals per hectare. The average copaiba oleoresin yield was 0.661±0.334 liters in the hillside and 0.765±0.280 liters in the valley. The average value of both environments together (hillside and valley) was 0.714±0.218 liters. From all individuals with DBH over 30 cm, 38 (58%) produced some amount of oleoresin, averaging 1.113±0.562 liters in the hillside, 1.329±0.448 liters in the valley and 1.190±0.355 liters in both environments together. The results show the need for planning the use of the surroundings of the study area in order to reach the required volume of copaiba to make feasible the sustainable management of oleoresin extraction in the region.Keywords: Biometrics; Copaiba Oleoresin; Natural population. ESTRUTURA POPULACIONAL E PRODUÇÃO DE ÓLEO-RESINA DE COPAÍBA ENTRE VALES E ENCOSTAS DE ÁREA DE MINERAÇÃO NO RIO TROMBETAS-PARÁRESUMO -O objetivo deste trabalho foi estudar as populações naturais de copaíba (Copaifera multijuga Hayne) na serra Monte Branco, em Porto Trombetas-PA, para subsidiar o manejo sustentável e a exploração de óleo-resina da espécie. Foi estudada a estrutura populacional da copaíba nas encostas e vales remanescentes da face Sul da serra Monte Branco, dentro da Floresta Nacional Saracá-Taquera, onde fora extraído o minério bauxita das áreas de platô no biênio de 2013-2014 pela Mineração Rio do Norte (MRN). Foi feito o inventário florestal a 100% da espécie e a extração do óleo-resina para quantificar o potencial produtivo das áreas remanescentes. A densidade de indivíduos de copaíba com DAP > 30 cm, na encosta, foi de 0,33 indivíduo por hectare, no vale foi de 0,25 indivíduo por hectare, e nos dois ambientes a densidade foi de 0,28 indivíduo por hectare. A média de produtividade de óleo-resina de copaíba na encosta foi de 0,661±0,334 litro e no vale, de 0,765±0,280 litro. A 52Revista Árvore, Viçosa-MG, v.40, n.1, p.51-60, 2016 GEBARA, J. et al.

show abstract

Potencial de produção de óleo-resina de copaíba (Copaifera spp) de populações naturais do sudoeste da Amazônia

Cited by 34 publications

References 5 publications

Short-Term Effects of Reduced-Impact Logging on Copaifera spp. (Fabaceae) Regeneration in Eastern Amazon

Short-Term Effects of Reduced-Impact Logging on Copaifera spp. (Fabaceae) Regeneration in Eastern Amazon

O manejo da copaíba pelas etnias Arara e Gavião na Terra Indígena Igarapé Lourdes, Rondônia, Norte do Brasil

Population Structure and Production of Copaiba Oleoresin Between Valleys and Hillsides of the Mining Area Oftrombetas River - Pará1

Contact Info

Product

Resources

About