francisco tarcisio alves junior
@ueap.edu.br
Production Engineering
State University of Amapá
Professor at the State University of Amapá. Experience in Production Engineering and Forest Sciences, with an emphasis on Forest Management
EDUCATION
Bachelor’s degree in Production Engineering, Master and PhD in Forest Sciences. Post-Doctorate in Forest Biomass for energy.
RESEARCH INTERESTS
Production Engineering and Forest Sciences, with an emphasis on Forest Management
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Mário Vanoli Scatolino, Lina Bufalino, Matheus Cordazzo Dias, Lourival Marin Mendes, Mateus Souza da Silva, Gustavo Henrique Denzin Tonoli, Tiago Marcolino de Souza, and Francisco Tarcisio Alves Junior
Springer Science and Business Media LLC
Cinthia Pereira de Oliveira, Robson Borges de Lima, Francisco Tarcísio Alves Junior, Mayara Maria de Lima Pessoa, Anderson Francisco da Silva, Nattan Adler Tavares dos Santos, Iran Jorge Corrêa Lopes, Cybelle Laís Souto-Maior Sales de Melo, Emanuel Araújo Silva, José Antônio Aleixo da Silva,et al.
MDPI AG
The objective of this work was to carry out a multitemporal analysis of changes in land use and land cover in the municipality of Floresta, Pernambuco State in Brazil. Landsat images were used in the years 1985, 1989, 1993, 1997, 2001, 2005, 2009, 2014, and 2019, and the classes were broken down into areas: water, exposed soil, agriculture, and forestry, and using the Bhattacharya classifier, the classification was carried out for generating land use maps. The data was validated by the Kappa index and points collected in the field, and the projection of the dynamics of use for 2024 was constructed. The thematic maps of land use and coverage from 1985 to 2019 show more significant changes in the forest and exposed soil classes. The increase in the forest class and the consequent reduction in exposed soil are consequences of the interaction between climate and human activities and the quality of the spatial resolution of the satellite images used between the years analyzed.
Cinthia Pereira De Oliveira, Rinaldo Luiz Caraciolo Ferreira, José Antônio Aleixo Da Silva, Robson Borges Lima, Emanuel Araújo Silva, Francisco Tarcísio Alves Júnior, Anderson Francisco Da Silva, Josias Divino Silva de Lucena, Nattan Adler Tavares Dos Santos, Iran Jorge Corrêa Lopes,et al.
Informa UK Limited
Robson B. de Lima, Rinaldo L. Caraciolo Ferreira, José A. Aleixo da Silva, Francisco T. Alves Júnior, and Cinthia P. de Oliveira
Informa UK Limited
The dry tropical forests of the Brazilian semi-arid region are a key component in the sustainable production of coal and firewood for power generation, although their estimates of volume and wood s...
Serliete de Carvalho Mendes Schneider, Silmar Gonzaga Molica, Rinaldo Luiz Caraciolo Ferreira, Ricardo Gallo, Gérman Hugo Gutierrez Céspedes, Francisco Tarcísio Alves Junior, and Mércia Virginia Ferreira dos Santos
Instituto de Pesquisa e Estudos Florestais (IPEF)
The objective of this study was to determine the effect of clump density on the production and distribution of biomass in commercial Bambusa vulgaris plantations cultivated under an annual rotation system in Northeast Brazil. The data were obtained one year after the last cut in populations led by regrowth and submitted to previous cuts for a 22-year period. Plantations I and II were located on slightly undulating terrain with 3.75 and 5.63 m2 of average usable area per clump, respectively. Plantation III was characterized by its location on hilly terrain with 3.57 m2 of area per clump. Three plots of 15 × 15 m were established in each plantation, from which three clumps were selected. The clumps were cut to estimate the dry biomass of leaves, branches, new culms, mature culms and rhizomes. The higher density of plants did not reduce the commercial biomass production per plant, while increasing the commercial production per hectare. Given the precocity of the cutting age considered, the relative proportion of culm biomass was new culms > mature culms > leaves > branches, showing a high biomass of new culms and leaves. The exploited biomass was only 38% of the total.
Maria do Rosário da Silva e Silva, Edielza Aline dos Santos Ribeiro, Jardel Pinto Barbosa, Francisco Tarcísio Alves Júnior, Marcelino Carneiro Guedes, Paulo Guilherme Pinheiro, and Lina Bufalino
Springer Science and Business Media LLC
The charcoals of Amapá, a Brazilian state located in the Amazonia forest, have been produced from wastes of high-quality native and exotic wood species. However, there is no control to avoid mixing raw materials with different potentials for bioenergy. This work aimed to compare the quality of two brands of Amapá charcoals for domestic use, besides to analyze the variability of properties within and among packages. Charcoals of brands A and B were produced from harvesting wastes of Acacia mangium wood and sawing wastes of mixed native wood species, respectively. Five packages of each brand were acquired, from which thirteen samples were randomly selected for physical and chemical analyses. The higher heating value was estimated from the chemical composition. The brands were compared by analysis of variance or Wilcoxon–Mann–Whitney test. The variability within and between packages was investigated through box plots. The Amapá charcoals showed moisture content (≈ 7.3%) somewhat above the stipulated (5%) by the Brazilian standardization for domestic use. The proper quality of the charcoals was attested by high apparent density (≈ 0.568 g/cm 3 ), high fixed carbon (≈ 87.2%), low volatile matter (≈ 11.7%), low ash content (≈ 1.0%) and high higher heating value (≈ 32,925.40 kJ/kg). The charcoal of the brand B showed better quality considering significant higher average apparent density, no outlier of ash content above the maximum ideal value and overall lower variability within and among packages of the properties. The apparent density greatly varied among packages, while a greater variation within packages was observed for the other properties.
Tamires Leal de Lima, Rinaldo Luiz Caraciolo Ferreira, José Antônio Aleixo da Silva, Francisco Tarcísio Alves Júnior, André Luiz Alves de Lima, German Hugo Gutierrez Céspedes, Rute Berger, and Régis Villanova Longhi
Instituto de Pesquisa e Estudos Florestais (IPEF)
This study aimed to evaluate stump regrowth and estimate the reconstitution of shrub-tree biomass from the stumps in an area of Caatinga under forest management in Floresta-PE, Brazil. The circumferences and heights of the stump and sprouts were measured two years after an intervention on 18 plots. The influence of the stump diameter and its height on the sprouting ability of the species was evaluated. Data was taken in the next area without intervention in order to estimate the diameter at breast height for reconstitution of the exploited biomass. We found that the tillering for Poincianella bracteosa and Aspidosperma pyrifolium was influenced by the size of the circumference, but not by the stump height. The average estimated biomass (17186.16 kg ha-1) was similar to other areas also subject to human intervention, and its reconstitution can be an auxiliary tool for monitoring illegal deforestation by environmental agencies.
Á.M.O. Silva, F.J. Freire, M.D. Barbosa, R.L.C. Ferreira, M.B.G.S. Freire, F.T. Alves Junior, C.S. Freire, and A.C.F. Silva
Revista Brasileira de Ciencias Agrarias
Studies of nutrient efficiency and compartmentalization of nutrients in dry forests can contribute to the understanding of the nutrition of these forests because significant nutrient depositions come from leaf and branch fractions and are mostly derived from leguminous species, emphasizing the importance of nitrogen in cycling of these environments. This work aimed to determine the compartmentalization and efficiency biological of nitrogen utilization of the forest species with the highest importance value in a fragment of Caatinga hiperxerófila in Pernambuco. In the species was estimated the leaf biomass, using allometric equations. Leaves and stem parts were sampled for determination of nitrogen content. The biological utilization efficiency was calculated for each species. The biomass of the stem was 10.12 kg plant-1 and of the leaf was 0.99 kg plant-1. Higher N contents were observed in the leaves and stem of Poincianella bracteosa, associated to the high biomass of the species. The most efficient species to use nitrogen were Myracrodruon urundeuva and Bauhinia cheilantha, which could be indicated for areas with low levels of organic matter.
Robson Borges de Lima, Rinaldo Luiz Caraciolo Ferreira, José Antônio Aleixo Da Silva, Cinthia Pereira De Oliveira, Gilson Fernandes Da Silva, and Francisco Tarcísio Alves Júnior
Universidade Federal do Parana
This study aimed to analyze the diametric structure of the stand and of five species of highest importance value for a Caatinga area, located in the municipality of Floresta, state of Pernambuco, Brazil. The work was developed from 40 sample units of 400 m² each, systematically allocated. All individuals with tree circumference at the base (0.30 m) greater than or equal to 6 cm were measured. The "q" quotient of De Liocourt was used to verify discrepancies between recruitment rates and mortality. We reported that, for the studied area, the species Poincianella bracteosa(Tul.) L. P. Queiroz, Mimosa ophthalmocentra Mart. ex Benth., Aspidosperma pyrifolium Mart., Myracrodum urundeuva(Engl.) Fr. All., and Bauhinia cheilanta(Bong). Steud represented 77.25% of the total density sampled. The diametric distributions indicated that regeneration occurs continuously. Through the "q" quotient, it can be inferred that, for the study stand, Myracrodum urundeuva and Poincianella bracteosa, the individual’s mortality has been compensated by recruitment in different diameter classes. However, the diametrical structure for Mimosa ophthalmocentra, Aspidosperma pyrifolium, and Bauhinia cheilanta indicated problems of maintenance and development for these species.
ROBSON B. DE LIMA, FRANCISCO T. ALVES JÚNIOR, CINTHIA P. DE OLIVEIRA, JOSÉ A.A. DA SILVA, and RINALDO L.C. FERREIRA
FapUNIFESP (SciELO)
Dry tropical forests are a key component in the global carbon cycle and their biomass estimates depend almost exclusively of fitted equations for multi-species or individual species data. Therefore, a systematic evaluation of statistical models through validation of estimates of aboveground biomass stocks is justifiable. In this study was analyzed the capacity of generic and specific equations obtained from different locations in Mexico and Brazil, to estimate aboveground biomass at multi-species levels and for four different species. Generic equations developed in Mexico and Brazil performed better in estimating tree biomass for multi-species data. For Poincianella bracteosa and Mimosa ophthalmocentra, only the Sampaio and Silva (2005) generic equation was the most recommended. These equations indicate lower tendency and lower bias, and biomass estimates for these equations are similar. For the species Mimosa tenuiflora, Aspidosperma pyrifolium and for the genus Croton the specific regional equations are more recommended, although the generic equation of Sampaio and Silva (2005) is not discarded for biomass estimates. Models considering gender, families, successional groups, climatic variables and wood specific gravity should be adjusted, tested and the resulting equations should be validated at both local and regional levels as well as on the scales of tropics with dry forest dominance.
ROBSON B. DE LIMA, LINA BUFALINO, FRANCISCO T. ALVES JUNIOR, JOSÉ A.A. DA SILVA, and RINALDO L.C. FERREIRA
FapUNIFESP (SciELO)
Currently, there is a lack of studies on the correct utilization of continuous distributions for dry tropical forests. Therefore, this work aims to investigate the diameter structure of a brazilian tropical dry forest and to select suitable continuous distributions by means of statistic tools for the stand and the main species. Two subsets were randomly selected from 40 plots. Diameter at base height was obtained. The following functions were tested: log-normal; gamma; Weibull 2P and Burr. The best fits were selected by Akaike's information validation criterion. Overall, the diameter distribution of the dry tropical forest was better described by negative exponential curves and positive skewness. The forest studied showed diameter distributions with decreasing probability for larger trees. This behavior was observed for both the main species and the stand. The generalization of the function fitted for the main species show that the development of individual models is needed. The Burr function showed good flexibility to describe the diameter structure of the stand and the behavior of Mimosa ophthalmocentra and Bauhinia cheilantha species. For Poincianella bracteosa, Aspidosperma pyrifolium and Myracrodum urundeuva better fitting was obtained with the log-normal function.
Jadson Coelho de Abreu, José Antônio Aleixo da Silva, Rinaldo Luiz Caraciolo Ferreira, and Francisco Tarcísio Alves Junior
Instituto de Pesquisa e Estudos Florestais (IPEF)
Anderson Pedro Bernardina Batista, Maria Jesus Nogueira Rodal, José Antonio Aleixo da Silva, Ana Carolina Borges Lins e Silva, Francisco Tarcisio Alves Junior, and José Márcio de Mello
FapUNIFESP (SciELO)
ABSTRACT Monitoring analyses aim to understand the processes that drive changes in forest structure and, along with prediction studies, may assist in the management planning and conservation of forest remnants. The objective of this study was to analyze the forest dynamics in two Atlantic rainforest fragments in Pernambuco, Brazil, and to predict their future forest diameter structure using the Markov chain model. We used continuous forest inventory data from three surveys in two forest fragments of 87 ha (F1) and 388 ha (F2). We calculated the annual rates of mortality and recruitment, the mean annual increment, and the basal area for each of the 3-year periods. Data from the first and second surveys were used to project the third inventory measurements, which were compared to the observed values in the permanent plots using chi-squared tests (a = 0.05). In F1, a decrease in the number of individuals was observed due to mortality rates being higher than recruitment rates; however, there was an increase in the basal area. In this fragment, the fit to the Markov model was adequate. In F2, there was an increase in both the basal area and the number of individuals during the 6-year period due to the recruitment rate exceeding the mortality rate. For this fragment, the fit of the model was unacceptable. Hence, for the studied fragments, the demographic rates influenced the stem density more than the floristic composition. Yet, even with these intense dynamics, both fragments showed active growth.
Rinaldo Luiz Caraciolo Ferreira, Shirley de Oliveira Silva, José Antônio Aleixo da Silva, Mário de Andrade Lira, Francisco Tarcísio Alves Júnior, and Ladivania Medeiros do Nascimento
Instituto de Pesquisa e Estudos Florestais (IPEF)
In northeastern Brazil, areas converted for pasture and agriculture are often abandoned; therefore the recovered areas contain vegetation at different successional stages. The aim of this study was to characterize the diversity and structure of Caatinga vegetation areas with different histories of use in northeastern Brazil. Two areas were used: 1) preserved with no historical evidence of deforestation for agricultural purposes; and 2) regenerated after cultivation of Opuntia ficus-indica Mill., approximately 30 years ago. In each area, vegetation of 12 plots was collected, considering all individuals with circumference at 1.30 m above ground level (CAP) ≥ 6.0 cm. Collected species were classified according to dispersal strategy into the categories of anemochoric, zoochoric, and autochoric. For the analysis of α diversity, species richness, Shannon index, Pielou’s evenness, and Simpson’s index were used. β diversity was evaluated using hierarchical cluster analysis. Structural analysis using density, basal area, and value of importance (VI) was conducted. A comparison between the diameter distributions of the areas was performed using the Kolmogorov– 1PhD. Professor at Department of Forestry Science. UFRPE Universidade Federal Rural de Pernambuco. Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, CEP 52171-900, Recife, PE. E-mail: rinaldo.ferreira@ufrpe.br; jaaleixo@uol.com.br. 2MSc. Professor. UNEC Centro Universitário de Caratinga. Moacyr de Mattos, 87 – Centro 35300-047, Caratinga, MG, Brasil. E-mail: shirleyoliveira10@yahoo.com.br. 3PhD. Researcher. IPA Instituto Agronômico de Pernambuco. General San Martin, 1371, Bongi 50761-000, Recife, PE. E-mail: mariolira@terra.com.br 4PhD. Professor at Department of Production Engineering. UEPA Universidade do Estado do Amapá. Getúlio Vargas, 650, Central 68900-070, Macapá, AM. E-mail: tarcisioalvesjr@yahoo.com.br. 5PhD. Researcher at Jardim Botânico. PCR Prefeitura do Recife. Getúlio Vargas, s/n, BR-232, Km 14 Curado, Recife,PE. E-mail: ladivania@hotmail.com. Ferreira et al. – Richness and diversity of Caatinga areas in different successional stages in northeastern Brazil 800 Sci. For., Piracicaba, v. 44, n. 112, p. 799-810, dez. 2016 DOI: dx.doi.org/10.18671/scifor.v44n112.02 Smirnov test. Indicator species analysis (ISA) was conducted to identify the species preferences per area. The relationship of β diversity with the differences in the composition of species and their densities were analyzed with TWINSPAN. The two areas showed significant differences (p < 0.05) in richness, density, and basal area. There was no significant difference in diversity. Cluster analysis indicated the formation of two floristic groups (40% dissimilarity), which was corroborated by TWINSPAN and ISA. The regenerating area after 30 years of abandonment showed similar species diversity as did the preserved area; however, floristic composition, species richness, density, and basal area did not recover. The similarity in diameter distributions between areas indicated that the abandoned area is recovering its regenerative capability.
Jorge Makhlouta Alonso, Paulo Sérgio Dos Santos Leles, Telmo Borges Silveira Filho, Carlos Alberto Bernardo Mesquita, Marcos Lima Pereira, José Antônio Santana De Sales Junior, François Lopes Alves, and Carla De Oliveira Da Silva
Universidade Federal do Parana
O objetivo deste trabalho foi avaliar a diversidade de espécies florestais nativas produzidas nos viveiros do estado do Rio de Janeiro. O levantamento e diagnóstico foram realizados durante os meses de fevereiro, março e abril de 2010, sendo incluídos os viveiros que produziam mudas de espécies florestais da Mata Atlântica. O trabalho de campo consistiu em visitas a 70 viveiros florestais, nos quais foi requerida a lista das espécies produzidas e realizada entrevista com o responsável, sendo preenchido um questionário englobando diversos temas relacionados à produção de mudas. Foram observadas 277 espécies florestais nativas da Mata Atlântica sendo produzidas nos viveiros, que, em média, trabalham com 56 espécies nativas. A diversidade total de espécies florestais da Mata Atlântica produzidas nos viveiros do Estado do Rio de Janeiro é baixa, assim como a diversidade média, já que mais da metade dos viveiros trabalha com uma listagem de 50 ou menos espécies, número insuficiente considerando a diversidade de espécies florestais presentes nas diferentes formações vegetais do estado.Palavras-chave: Mudas florestais; restauração florestal; Mata Atlântica. AbstractAssessment of diversity of native species produced in forest nurseries of Rio de Janeiro State. The objective of this paper was to evaluate the diversity of native species produced by nurseries in the State of Rio de Janeiro. The diagnostic and survey were conducted during the months of February, March and April of the year 2010, the research included all nurseries that produced seedlings of Atlantic Forest species. The fieldwork consisted of visits to the 70 surveyed nurseries, in which a list of the species produced in the nursery was requested and the seedling production manager was interviewed, filling in a questionnaire covering various topics related to seedlings production. We observed 277 forest species native from the Atlantic Forest produced in the nurseries. In average, the nurseries produce 56 different native species. The total diversity of native species produced in the State of Rio de Janeiro is low, as well as the mean diversity, since more than half of the nurseries work with a list of 50 or fewer species, what is insufficient considering the diversity of forest species that occur in the different vegetation types of the state.Keywords: Forest seedlings; forest restoration; Atlantic Forest.
Francisco Tarcisio Alves Junior, Rinaldo Luiz Caraciolo Ferreira, José Antônio Aleixo da Silva, Luiz Carlos Marangon, and German Hugo Guttierez Cespedes
FapUNIFESP (SciELO)
Objetivou-se analisar a estrutura da regeneração natural das espécies lenhosas de área de caatinga no município de Floresta-PE com importância madeireira, buscando com informação para o manejo florestal sustentado dessa formação. O inventário florestal foi realizado em uma área de cerca de 50 ha com vegetação de caatinga na fazenda Itapemirim (8º30'37" S e 37º59'07" W), município de Floresta-PE. Em 40 unidades amostrais de 5 x 5 m, foram mensurados os indivíduos em quatro classes de tamanho: classe 1 = 20 - 50 cm; classe 2 = 51 - 100 cm; classe 3 = 101 - 150 cm; classe 4 = maior que 151 cm e menores que 6 cm de CAP. Em 37 parcelas, havia indivíduos dentro do nível de inclusão e foram identificadas 15 espécies pertencentes a sete famílias botânicas, destacando-se Euphorbiaceae, Anacardiaceae e Fabaceae. O Índice de diversidade de Shannon-Weaver (H') foi de 1,91 nats.ind.-1, o Índice de uniformidade de Pielou (E) igual a de 0,71. A área apresentou densidade estimada de 2.080 ind. ha-1. A distribuição espacial evidenciou as características da maioria das espécies, de ocorrerem agrupadas ou com tendência ao agrupamento. As espécies Bauhinia cheilanta e Poincianella bracteosa apresentaram maiores valores de densidade, além de estarem presentes em todas as classes de regeneração natural, constituindo indícios de que essas espécies apresentam potencial de se estabelecerem no local e serem as possíveis espécies dominantes quando chegarem à fase adulta.
Shirley de Oliveira Silva, Rinaldo Luiz Caraciolo Ferreira, Jose Antonio Aleixo da Silva, Mario de Andrade Lira, Francisco Tarcísio Alves Junior, Maria Olivia de Oliveira Cano, and José Edson Lima Torres
FapUNIFESP (SciELO)
O objetivo deste trabalho foi comparar a regeneração natural de duas áreas de vegetação de caatinga com diferentes históricos de uso no agreste pernambucano. O estudo foi realizado em duas áreas: Área I de mata nativa, sem evidências históricas de eliminação total da vegetação para fins de cultivos agrícolas; e Área II, anteriormente ocupada com cultivo da palma forrageira, abandonada há cerca de 30 anos e que se encontrava em estágio de sucessão secundária. Para coleta dos dados da vegetação, foram utilizadas 24 parcelas de dimensões de 5 x 5 m, em 12 parcelas em cada área, sendo considerados indivíduos em regeneração natural as plantas que possuíram circunferência a 1,30 m do solo (CAP) < 6,0 cm e altura >1,0 m. No levantamento estrutural dos indivíduos regenerantes das duas áreas foram identificados 581 plantas pertencentes a 14 famílias botânicas, 26 gêneros e 30 espécies. As densidades totais obtidas neste estudo foram de 11.200 ind.ha-1 e 8.116 ind.ha-1, nas Áreas I e II, respectivamente. As espécies que obtiveram maiores densidades de regeneração natural na Área I foram: Croton argyrophyllus, Senegalia bahiensis, Croton blanchetianus e Coutareahexandra; e na Área II: Senegalia bahiensis, Poincianella pyramidalis, Zanthoxyllum sp, Croton blanchetianus e Croton argyrophyllus.
Francisco J. P. Guimarães, Rinaldo L. C. Ferreira, Luiz C. Marangon, José A. A. da Silva, Perseu da S. Aparício, and Francisco T. Alves Júnior
FapUNIFESP (SciELO)
Avaliou-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.
Francisco T. Alves Junior, Rinaldo L. C. Ferreira, José A. A. da Silva, Luiz C. Marangon, and Roberto F. Costa Junior
FapUNIFESP (SciELO)
Objetivou-se, neste trabalho, analisar a estrutura diamétrica do componente arbóreo de um fragmento de Floresta Atlântica inserido em uma matriz de cana-de-açúcar, utilizando-se o quociente "q" de De Liocourt. O estudo foi realizado no fragmento denominado Mata das Caldeiras, no município de Catende, Pernambuco. Os indivíduos amostrados foram distribuídos em classes de diâmetro com amplitude de 5 cm, em que o centro da primeira classe tem o valor de 6,5 cm. Com o uso do quociente "q" de De Liocourt, aqui empregado, construíram-se as curvas de distribuição diamétrica, observadas e estimadas para a amostragem geral e para as espécies de maior Valor de Importância (VI). O fragmento Mata das Caldeiras apresentou déficit de árvores nas classes de diâmetro, geral e por espécies de maior VI, comparado a uma floresta balanceada. O quociente "q" de De Liocourt pode ser usado para avaliar estrutura diamétrica em fragmentos de Floresta Atlântica. Por meio da distribuição diamétrica e dos valores de "q" obtidos para o estágio de sucessão em que se encontram as áreas, pode-se inferir que o grau de perturbação nesses fragmentos ocorre de forma constante.