Florística de uma área de cerradão na floresta nacional de Paraopeba - Minas Gerais

Souza, Priscila Bezerra de; Saporetti, Amilcar Walter; Soares, Michellia Pereira; Viana, Rodney Haulien Oliveira; Camargos, Virgínia Londe de; Meira‐Neto, João Augusto Alves

doi:10.1590/s0104-77602010000100010

Cited by 24 publications

(30 citation statements)

References 14 publications

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“…In other soils studied by CETEC (1981), lower CEC value, associated with yellowish and red-yellowish color, were found. CEC values in the soil under Cerradão in FLONA were closely related to the Cerrado soils studied by Sans et al (1979), Batista and Couto (1990) and Souza (2004).…”

Section: Discussionsupporting

confidence: 80%

Pedology and plant physiognomies in the cerrado, Brazil

Neri

Schaefer

Souza

et al. 2013

An. Acad. Bras. Ciênc.

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This study was carried out in Paraopeba National Reserve. It aims to classify and evaluate the soil of the studied area and to verify the influence of soil attributes on vegetation by testing the following hypotheses: 1) under woodland physiognomies (Cerradão) the soil fertility is higher and the Al content lower; 2) open savanna occurs only in areas with high Al contents. For this purpose, representative soils in the Paraopeba National Reserve were mapped, identified, and samples from five profiles were analyzed. The environmental gradient was easily observed by principal components analyses, where the differences between the sites were highlighted. The Spearman correlation was used to verify the hypothesis. The correlation between vegetation (basal area, density, and richness) and soil (K, Ca 2+ , and Al 3+) was statistically significant. The hypotheses were accepted, but hypothesis 1 only partially. Soil features seem to have an influence on the Cerrado phytophysiognomies and structure. Available phosphorous was an important factor for the maintenance of woodland Cerrado. Also, exchangeable Al 3+ plays a major role in the establishment of different Cerrado physiognomies in Paraopeba National Reserve.

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Section: Discussionsupporting

confidence: 80%

Pedology and plant physiognomies in the cerrado, Brazil

Neri

Schaefer

Souza

et al. 2013

An. Acad. Bras. Ciênc.

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“…This density is within the normally range found in other sampled areas of cerradão within the Cerrado biome, which ranges from 1,172 to 1,251 tree ha -1 (SOUZA et al, 2010;SOUZA et al, 2008).…”

Section: Nij Nsupporting

confidence: 81%

“…According to Felfili et al (2004), the Fabaceae and Vochysiaceae families are the most studied families in cerradão of the Federal District. The predominance of leguminous species may be attributed to the biological nitrogen fixation capacity in many leguminous species, which facilitates the regeneration in low fertility and degraded soils (SOUZA et al, 2010). Moreover, many species of this family regrow from roots (RODRIGUES et al, 2004).…”

Section: Nij Nmentioning

confidence: 99%

Floristic-Structural Characterization and Successional Group of Tree Species in the Cerrado Biome of Tocantins State, Brazil

et al. 2016

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-The objective of this study was to characterize the floristic composition, vegetation structure and ecological group of tree species in a cerradão forest (Cerrado biome) of Palmas, Tocantins State, Brazil. A forest inventory was performed in an area of 10.15 hectares, using systematic sampling with plots of 400 m², in which all standing trees, alive and dead, that had diameter at breast height (DBH) ≥ 5 cm were sampled and identified. A linear plateau regression model (LPR) was used for sample sufficiency analysis. The Shannon index (H') was used for assess the floristic diversity, and the Importance Value Index (IVI) for assess the horizontal structure. The forest was classified in three strata according to vertical structure analysis. The LPR showed that the sampling size was adequate. The predominate species in the area were Myrcia splendens, Emmotum nitens and Qualea parviflora, and species from the families Fabaceae and Chrysobalanaceae. The pioneer (613 individuals ha -1 ) and climax (530 individuals ha -1 ) species were the predominating groups. Regarding the richness index, the number of climax (57 species) and pioneer (25 species) species stood out. The alpha floristic diversity was 3.35 nats individuals -1 and the Pielou equability value J = 0.76. The diametric distribution showed a negative and balanced exponential pattern. Regarding the vertical stratification, the smallest amount of individuals was in the upper stratum (13%) and the highest in the mid stratum (63%) and in the lower stratum (24%). The use of floristic composition tools with horizontal and vertical structure analysis was effective for understand the tree community, which may be considered structured and diverse, thus able to restructure possible disturbances when preserved.Keywords: Floristic diversity. Phytosociology. Balanced forest. Ecological groups. CARACTERIZAÇÃO FLORÍSTICO-ESTRUTURAL E GRUPO SUCESSIONAL DE ESPÉCIES ARBÓREAS NO BIOMA CERRADO DO ESTADO DE TOCANTINS, BRASILRESUMO -Objetivo deste estudo foi caracterizar a composição florística, a estrutura da vegetação e os grupos ecológicos das espécies arbóreas em área de cerradão em Palmas, Tocantins. Foi realizado um inventário florestal em área de 10,15 hectares, utilizando amostragem sistemática com parcelas de 400 m², onde foram amostradas e identificadas todas as árvores vivas e mortas em pé, com DAP ≥ 5 cm. Na análise da suficiência amostral utilizou-se a regressão linear com resposta em platô (REGRELRP ). No quesito riqueza, as espécies clímax sobressaíram (57 espécies), pioneiras (25 espécies). A diversidade alfa florística foi de 3,35 nats indivívideos -1 e o valor de equabilidade de Pielou J = 0,76. A distribuição diamétrica apresentou comportamento exponencial negativo e balanceada. Em relação aos estratos verticais, a menor quantidade de indivíduos é encontrada no estrato superior (13%), a maior no estrato médio (63%) e o estrato inferior (24%). A área estudada foi caracterizada como estruturada e diversa conforme composição florística e fitossociológica en...

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“…Their predominance was attributed to their biological nitrogen fixation capacity and their ability to recover degraded soils and low fertility areas in the studied biomes (SOUZA et al, 2010). There was also a high density of one species (Myrcia splendens) of the Myrtaceae.…”

Section: Resultsmentioning

confidence: 92%

“…In other cerradão areas of the Brazilian Cerrado, the tree density was between 1,172 trees ha -1 and 1,251 trees ha -1 (SOUZA et al, 2010).…”

Section: Resultsmentioning

confidence: 96%

Floristic, structural, and allometric equations to estimate arboreal volume and biomass in a cerradão site

Miguel

Rezende

Leal

et al. 2017

SCA

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This objective of this study was to characterize the floristic, structural, and ecological groups and to estimate the arboreal volume and biomass of a cerradão site in Palmas, Tocantins, Brazil. A forest inventory was conducted on 10.15 ha of the study area. Plots of 400-m 2 were used for systematic sampling. All standing trees (dead or alive) with a breast-height diameter (DHB) greater than 5 cm were identified and measured. Floristic diversity and horizontal structure were assessed using the Shannon and importance value indices, respectively. Forest vertical structure was classified into three stratata and the tree species were categorized into ecological groups. Ninety tree volumes were rigorously cubed and weighed. Fresh-and dry biomass were sampled and estimated. Mathematical models were applied and adjusted to estimate tree volume and biomass. It was observed that the species Myrcia splendens and Emmotum nitens and the families Fabaceae and Chrysobalanaceae were dominant in our study site. The pioneer (613 individuals ha -1 ) and climax (530 individuals ha -1 ) tree species group predominated. The floristic diversity index was estimated as 3.35 nats ind -1. The vertical structure analysis indicated fewer individuals in the superior stratum (13%) compared to the medium (63%) and inferior (24%) stratum. The Schumacher and Hall model showed better results with regard to estimated forest production. Forest volume and biomass estimates were 126.71 m³ ha -1 and 61.67 Mg ha -1 , respectively. The studied cerradão area had high floristic diversity and climax species predominated. Since this cerradão is in close proximity to the Amazon biome, its volume and biomass stocks were higher than those estimated for other cerradão and forest formations within the Cerrado biome. Key words: Brazil. Cerrado Biome. Forestry inventory. Ecological group. Production. ResumoO objetivo do estudo foi caracterizar a florística, a estrutura, o grupo ecológico e estimar os estoques de volume e biomassa arbórea em uma área de 10, 15 hectares de cerradão, localizado no município de Palmas, Estado do Tocantins, utilizando a amostragem sistemática com parcelas de 400 m². Foram amostradas e identificadas todas as árvores vivas e mortas em pé, com diâmetro a 1,3 metros do solo ≥ 5 cm. A diversidade florística foi avaliada pelo o índice Shannon e a estrutura horizontal pelo o Índice de Valor de Importância. Quanto a estrutura vertical, a floresta foi classificada em três estratos.

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Florística de uma área de cerradão na floresta nacional de Paraopeba - Minas Gerais

Cited by 24 publications

References 14 publications

Pedology and plant physiognomies in the cerrado, Brazil

Pedology and plant physiognomies in the cerrado, Brazil

Floristic-Structural Characterization and Successional Group of Tree Species in the Cerrado Biome of Tocantins State, Brazil

Floristic, structural, and allometric equations to estimate arboreal volume and biomass in a cerradão site

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