Estrutura diamétrica de um fragmento de Floresta Atlântica em matriz de cana-de-açúcar, Catende, Pernambuco

Alves, Francisco Tarcísio; Ferreira, Rinaldo L. C.; Silva, José A. A. da; Marangon, Luíz Carlos; Costa, Roberto Felix

doi:10.1590/s1415-43662009000300015

Cited by 4 publications

(6 citation statements)

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“…The sampled individuals were distributed in diameter classes with an amplitude of 5 cm (ALVES JR. et al, 2009). After distributing the individuals at each diametric classes, diameter frequency was adjusted by a distribution function, as in Alves Jr. et al (2009) (Equation 1):(1) Where: Ln y is the natural logarithm of the average frequency per diameter class, with an amplitude of 5 cm, per hectare.…”

Section: Proceedingsmentioning

confidence: 99%

“…After distributing the individuals at each diametric classes, diameter frequency was adjusted by a distribution function, as in Alves Jr. et al (2009) (Equation 1):(1) Where: Ln y is the natural logarithm of the average frequency per diameter class, with an amplitude of 5 cm, per hectare. In cases of the nonexistence of individuals in the classes, the number 1 (constant to all classes) was added to allow the calculation of the center of the diameter class (x), as proposed by Alves Jr. et al (2009). In addition, β 0 and β 1 are the structural parameters of vegetation in relation to diameter distribution and ε i is the random error.…”

Section: Proceedingsmentioning

confidence: 99%

“…It moreover provides important environmental services such as water and soil protection, ecosystem maintenance, climate improvement, and scenic, cultural, and psychological values (MACIEL et al, 2010, ROMEIRO, 2012, LOURO et al, 2013. Therefore, studies of forests, especially tropical ones, have been considered of extreme relevance (ALVES JR. et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…The study of forest structure is not only justified for the knowledge of species that composes the flora, but especially to assess the arrangement, behavior, and mechanisms involved in the ecological succession process (FREITAS; MAGALHÃES, 2012). According to Alves Jr. et al (2009), the structure of a forest can be explained by the diametric distribution of individuals. According to Lamprecht (1990), Felfili (1997), and Callegaro et al (2012), the diameter distribution curve is represented by a negative exponential function, resembling an inverted J-shape.…”

Section: Introductionmentioning

confidence: 99%

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Diametric structure of a deciduous forest fragment in the agribusiness region of western Santa Catarina State, Brazil

Freitas¹,

Ferreira²,

Noronha³

et al. 2019

Biosci. J.

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Forest structure studies may be carried out through the diametric distribution of individuals within a population, which is defined by characterizing the number of trees per unit area and diameter class intervals. The De Liocourt's q quotient can be used to assess the relationship between recruitment and mortality in forest communities because when a constant ratio occurs between the classes, it represents that the recruitment rate is similar to the mortality rate and the distribution can be considered as regular or balanced. This study aims to analyze the diametric structure of the arboreal component of a seasonal deciduous forest fragment located in the Peixe River Valley, Midwest of Santa Catarina State, Brazil. The sampled individuals were distributed in diameter classes with an amplitude of 5 cm, in which the center of the first class presented a value of 6.5 cm. Subsequently, the observed and estimated diametric distribution curves were constructed for the overall sampling and for species with the highest importance value (IV) and with different ecological attributes. The study area presented a deficit of trees in the overall and per species diameter classes when compared to a balanced forest. The De Liocourt's q quotient can be used to assess the diametric structure of deciduous forest fragments.

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Section: Proceedingsmentioning

confidence: 99%

Section: Proceedingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Diametric structure of a deciduous forest fragment in the agribusiness region of western Santa Catarina State, Brazil

Freitas¹,

Ferreira²,

Noronha³

et al. 2019

Biosci. J.

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“…A distribuição diamétrica pode ser definida como a caracterização do número de árvores por unidade de área e por intervalo de classe diamétrica, permitindo a aferição do conhecimento da dinâmica e estrutura populacional que compõem a comunidade vegetal a ser observada (ALVES JÚNIOR et al, 2009;SANTANA, 2009). Assim, a distribuição diamétrica torna-se uma eficiente ferramenta para a elaboração de correspondentes planos de ordenação silvicultural e manejo florestal, além de permitir inferências sobre o comportamento do crescimento do maciço florestal.…”

Section: Introductionunclassified

Distribuição Diamétrica De Um Fragmento De Floresta Atlântica No Município De Santa Maria De Jetibá, Es

Imaña-Encinas¹,

Conceição²,

Santana³

et al. 2013

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Resumo. For the total population, the DBH distribution into 5 cm intervals formed 13 classes. The adjusted Meyer's equation reveals for this population a tendency to a J-inverse curve. The first three diameter classes from 5 to 20 cm concentrated 79% of the total population. Eight species had a population density with more than 40 trees per hectare. These trees were concentrated until the 40 cm distribution classes. The statistical analysis of the distributions curves reveals that these populations were distributed between the normal, j-inverse and bi-modal curves. Keywords: Floristic survey; diametric classes; forest mensuration. INTRODUÇÃOAs várias fitofisionomias da Floresta Atlântica, inseridas no Bioma Costeiro ou Atlântico, ficaram intimamente relacionadas a fatores tanto naturais como antrópicos, que há pouco mais de cinco séculos se estendiam por toda a costa atlântica brasileira, sendo que atualmente estão restritas principalmente a áreas serranas costeiras das regiões Sul e Sudeste do Brasil (SIMÕES; LINO, 2002;LOUREIRO, 2008;DELDUQUE et al., 2008). Atualmente, os remanescentes da vegetação nativa da Mata Atlântica estão reduzidos em torno de 22% de sua cobertura original e encontram-se em diferentes

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Estrutura de um fragmento florestal no Engenho Humaitá, Catende, Pernambuco, Brasil

Guimarães

Ferreira

Marangon

et al. 2009

Rev. bras. eng. agríc. ambient.

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RESUMOAvaliou-se, neste trabalho, a estrutura de um fragmento florestal antropizado denominado Mata das Galinhas, Engenho Humaitá, Catende, Pernambuco, e se utilizaram, para avaliar a composição florística e a estrutura fitossociológica, 14 parcelas de 10 x 25 m a fim de amostrar os indivíduos arbóreos com circunferência a 1,30 m do solo (CAP) > 10 cm. Foram estimados, então, densidade, frequência e dominância e valor de importância (VI) e o índice de Shannon, além de registrados 438 indivíduos pertencentes a 63 espécies, 45 gêneros e 29 famílias. As famílias de maior importância foram Mimosaceae, Moraceae, Anacardiaceae e Lecythidaceae e as espécies com maiores valores de VI, foram Brosimum discolor, Parkia pendula, Eschweilera ovata, Thyrsodium spruceanum, Tapirira guianensis, Protium heptaphyllum, Casearia arborea, Helicostylis tomentosa, Dialium guianense, Schefflera morototoni, Himatanthus phagedaenicus e Cupania racemosa. Quando observado isoladamente, conclui-se que o fragmento estudado possui pouca relevância; entretanto, se considerado conjuntamente com outros fragmentos da área, sua diversidade é significativa o que justificaria esforços para sua conservação e manejo.Palavras-chave: comunidade arbórea, distribuição diamétrica, estrutura comunitária Structure of a forest fragment at Humaitá sugar mill, Catende, PE, Brazil ABSTRACTThe structure of a forest fragment, known as "Mata das Galinhas" at Humaitá sugar mill, Catende, Pernambuco, Brazil was evaluated. To evaluate the floristic composition and the phytosociological structure under anthropic action 14 plots of 10 x 25 m were used to sample the arboreal individuals with circumference at breast height (CBH) > 10 cm. The density, frequency, and dominance, the importance value (IV) and the Shannon's index were calculated. A total of 438 individuals distributed into 63 species, 45 genera and 29 families were recorded. The families of larger importance in the study were Mimosaceae, Moraceae, Anacardiaceae and Lecythidaceae. The species with larger values of IV were Brosimum discolor, Parkia pendula, Eschweilera ovata, Thyrsodium spruceanum, Tapirira guianensis, Protium heptaphyllum, Casearia arborea, Helicostylis tomentosa, Dialium guianense, Schefflera morototoni, Himatanthus phagedaenicus and Cupania racemosa. When observed separately, the studied fragment possesses low relevance; however, when considered jointly with other fragments of the area, its diversity is significant, justifying efforts for conservation and management.

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Estrutura diamétrica de um fragmento de Floresta Atlântica em matriz de cana-de-açúcar, Catende, Pernambuco

Cited by 4 publications

References 18 publications

Diametric structure of a deciduous forest fragment in the agribusiness region of western Santa Catarina State, Brazil

Diametric structure of a deciduous forest fragment in the agribusiness region of western Santa Catarina State, Brazil

Distribuição Diamétrica De Um Fragmento De Floresta Atlântica No Município De Santa Maria De Jetibá, Es

Estrutura de um fragmento florestal no Engenho Humaitá, Catende, Pernambuco, Brasil

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