Diameter structure of stratum and ecological groups of a Semideciduous Forest area in Dionísio-MG

Souza, Priscila Bezerra de; Souza, Agostinho Lopes de; Meira‐Neto, João Augusto Alves

doi:10.1590/s0100-67622012000100016

Cited by 8 publications

(13 citation statements)

References 13 publications

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“…Some of these fine individuals belong to pioneer species, typically found in areas under regeneration, presenting rapid growth and low longevity, which justifies their high abundance in the eucalyptus area, subsidizing the observed difference between areas (Budowski 1965). Similar results are also characteristic of other areas of Atlantic Forest, and vegetation may behave as a community-stock, where individuals are emerging for forest renewal (Scolforo 1998;Abreu et al 2013;Souza et al 2012).…”

Section: Discussionsupporting

confidence: 56%

Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient to promote the regeneration of a forest fragment?

Santana¹,

Rocha²,

Oliveira³

et al. 2020

NBC

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Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient to promote the regeneration of a forest fragment? Fitossociologia do estrato arbustivo-arbóreo da Floresta Nacional do Ibura, Nordeste do Brasil: 35 anos são suficientes para promover a regeneração de um fragmento florestal? Citation: Santana JP, Rocha PA, Oliveira EVS, Prata APN, Ribeiro AS (2020) Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient to promote the regeneration of a forest fragment? Neotropical Biology and Conservation 15(2): AbstractAmong the various applications of phytosociology, the evaluation of natural regeneration is of great importance, mainly because it provides insights for ecological restoration. The objective of this study was to analyze the composition and phytosociological parameters of shrub and tree vegetation in areas Neotropical Biology and Conservation 15(2): 89-106 (2020) of plantation of eucalyptus (Corymbia citriodora) and areas of native forest in the Ibura National Forest, located in the Sergipe state of northeastern Brazil. For this purpose, 20 plots were sampled and all individuals with a diameter at breast height (DBH) ≥ 8 cm were measured. Sampling revealed 821 individuals in the forest area and 1,000 in the eucalyptus area. These individuals represent 84 species and the areas presented a significant difference in species composition, with 61 in the eucalyptus area and 65 in the Forest area, and only 40 species were common to both areas. There was a predominance of pioneer individuals in the eucalyptus area. There also was a significant difference in basal area, relative density and relative dominance, but no significant differences were observed in average height. It was concluded that a period of 35 years is insufficient for the recovery of the eucalyptus area, which remains in a more initial successional stage than the forest area. ResumoEntre as várias aplicações da fitossociologia, a avaliação da regeneração natural possui grande importância, principalmente porque fornece subsídios para restauração ecológica. Diante disso, este trabalho foi realizado com o objetivo de analisar a composição e os parâmetros fitossociológicos da vegetação arbustivo-arbórea em áreas de plantio de eucalipto (Corymbia citriodora) e de mata nativa na Floresta Nacional do Ibura, no estado de Sergipe. Para esta finalidade, foram demarcadas 20 parcelas e amostrados todos os indivíduos com diâmetro à altura do peito (DAP) ≥ 8 cm. A amostragem revelou 821 indivíduos na área de mata e 1.000 para a área de eucalipto. Esses indivíduos representam 84 espécies e as áreas apresentaram diferença significativa na composição de espécies, sendo 61 na área de eucalipto e 65 na área de floresta, e apenas 40 comuns a ambas as áreas. Observamos o predomínio de indivíduos de espécies pioneiras na área de eucalipto. Também encontramos diferença significativa para a área basal, densidade relativa e dominância relativa, mas...

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Section: Discussionsupporting

confidence: 56%

Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient to promote the regeneration of a forest fragment?

Santana¹,

Rocha²,

Oliveira³

et al. 2020

NBC

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“…Padrões espaciais específicos encontrados em florestas são guiados por dependência espacial de variáveis florestais (densidade, área basal, altura, volume e biomassa, etc. ), ou seja, refletem a ocupação dos espaços e usos dos recursos disponíveis no ambiente pelas espécies, condicionadas pelos diferentes níveis de competição (Archanjo et al, 2012), pela forma e arquitetura das espécies, qualidade do sítio, luminosidade (Pritchard & Comeau, 2004), distância entre árvores e aberturas na floresta (Sanquetta et al, 2007;Souza et al, 2012;Amaral et al, 2013). Estes padrões podem ser melhor analisados individualmente, por meio de ferramentas de SIG como ANND, análise de cluster, Kernel, etc.…”

Section: Resultsunclassified

“…ha -1 e 14,3 m³ha -1 ) e E. bracteosa (2,1 ind. ha -1 e 7,6 m³ ha -1 ) demonstraram maior potencial para a extração madeireira (Figura 3), considerando uma estrutura diamétrica equilibrada (Souza et al, 2012;Condé & Tonini, 2013). As espécies C. cateniformis e D. excelsa devem ser analisadas com cautela, tendo em vista a baixa densidade de indivíduos por hectare, porém com volumetria apta para extração comercial (0,4 ind.…”

Section: Resultsunclassified

Padrão espacial de espécies madeireiras da Amazônia pelo método de coordenadas cartesianas e espaciais

et al. 2016

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A utilização de sistemas de informação geográfica (SIG) no planejamento florestal possibilita a análise e o reconhecimento de padrões espaciais das espécies florestais em perfil bidimensional e tridimensional. O objetivo deste estudo foi demonstrar a eficiência do método de coordenadas cartesianas e espaciais (MCCE), método de correção da localização das coordenadas UTM das árvores em concordância com a localização de campo ou cartesianas (X,Y), aliado ao cálculo do índice do vizinho natural (ANND) no reconhecimento e análise de padrões espaciais de quatro espécies comerciais madeireiras em área de manejo florestal em Caracaraí, RR, Brasil. O ANND pressupõe completa aleatoriedade espacial.Simulações foram realizadas em 9 ha, subdivididos em 100 subparcelas de 100 m2 cada. Foram coletados: o diâmetro (DAP > 10 cm), alturas comercial e total, volume comercial e as coordenadas cartesianas (X,Y) e espaciais (UTM). Foram observados padrões espaciais aleatórios para Eschweilera bracteosa e Manilkara huberi. Os padrões espaciais dispersos e raros foram mais observados em Cedrelinga cateniformis e Dinizia excelsa. O MCCE demonstrou ser um método eficiente para o reconhecimento e análise de padrões espaciais de espécies nativas da floresta tropical amazônica, facilitando o planejamento florestal mediante simulações 2D e 3D da floresta.Spatial pattern of Amazonian timber species using cartesian and spatial coordinates methodGeographic information system (GIS) applied to forest analysis permit the recognition and analysis of spatial patterns of species in two and three dimensional. The aim of this study to demonstrate the efficiency of cartesian and spatial coordinates method (MCCE), method of correcting UTM coordinates of trees location in accordance with the location of field or Cartesian (X ,Y), combined with natural neighbor index (ANND) in recognition and analysis of spatial distribution patterns of four commercial timber species in forest management in Caracaraí, Roraima State, Brazil. Simulations were performed on 9 ha, divided into 100 plots of 100 m2 each. Collected data were DBH > 10 cm, commercial and total heights, cartesian coordinates (X,Y) and spatial coordinates (UTM). Random spatial patterns were observed in Eschweilera bracteosa and Manilkara huberi. The dispersed and rare spatial patterns were observed in Dinizia excelsa and Cedrelinga cateniformis. MCCE proved to be an efficient method in the recognition and analysis of spatial patterns of native species from Amazon rain forest, as forest planning becomes easier by 2D and 3D simulations.Index terms: Geographic information system; Forest management; Natural neighbor index

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“…The diametric distribution presented an inverted J-shaped curve, or negative exponential curve (Figure 2), in which 56% of individuals occur in the first class (5-10 cm). This distribution is characteristic of natural forests, where the frequency of individuals tends to decline with increasing diameter (Souza et al, 2012c;Lima & Leão, 2013;Calixto & Drumond, 2014).…”

Section: Copaifera Langsdorffiimentioning

confidence: 87%

Biomass and Carbon in a Seasonal Semideciduous Forest in Minas Gerais

et al. 2018

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The objective of the present study was to quantify the biomass and carbon stock in a Seasonal Semideciduous Forest remnant in southern Minas Gerais. Forest inventory data taken between 2010 and 2013 in permanent plots, was used to estimate biomass with an allometric equation. Basic wood density (Db) and carbon content were determined in the laboratory and the carbon stock was obtained by multiplying biomass by carbon content. The species with the lowest and highest Db were Nectandra lanceolata (0.38 g cm-3) and Machaerium villosum (0.77 g cm-3). The species that showed the lowest and highest carbon content values were Casearia decandra (41.85%) and Nectandra oppositifolia (46.57%). The biomass stock for the area was 126.92 ± 0.09 t ha-1 , which corresponded to 55.91 ± 0.05 t ha-1 of carbon stock and a periodic annual increment of 3.07 t ha-1 year-1 .

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Diameter structure of stratum and ecological groups of a Semideciduous Forest area in Dionísio-MG

Cited by 8 publications

References 13 publications

Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient to promote the regeneration of a forest fragment?

Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient to promote the regeneration of a forest fragment?

Padrão espacial de espécies madeireiras da Amazônia pelo método de coordenadas cartesianas e espaciais

Biomass and Carbon in a Seasonal Semideciduous Forest in Minas Gerais

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