Tree Stratum
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. HOW COMPETITION INDICES BEHAVE AT DIFFERENT NEIGHBORHOOD COVERAGES AND MODIFICATIONS IN A NATURAL ARAUCARIA FOREST IN SOUTHERN BRAZIL
ABSTRACT Tree-level growth models are being more used in heterogeneous forests, for they can take underlying processes, such as competition, into account. Although it is common in the forest literature to test several indices in order to define the most suitable for each study, the evaluation of plot sizes or competition radii is poorly addressed in competit
CERNE. Publicado em: 2020-06
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2. Florística, estrutura e formas de vida do estrato inferior de uma Floresta Ombrófila Densa Aluvial, Pará, Brasil
Resumo Este estudo teve como objetivo descrever a composição florística, a estrutura e as formas de vida do estrato inferior de uma floresta ombrófila densa aluvial na Área de Proteção Ambiental Ilha do Combu, Belém, Pará. Foram selecionadas quatro parcelas de 20 m x 20 m (0,16 ha) divididas em 1.289 subparcelas de 1 m². Foi classificada a categori
Ciênc. Florest.. Publicado em: 02/12/2019
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3. Spatial-temporal variation in litterfall in seasonally dry tropical forests in Northeastern Brazil
Resumo A produção de serapilheira é essencial para a ciclagem de nutrientes em ecossistemas terrestres. De Novembro de 2009 a Outubro de 2011, foi analisada a produção de serapilheira em duas áreas de Caatinga, um tipo de Floresta Tropical sazonalmente Seca localizada no Cariri Paraibano, na região do semiárido da Paraíba, Nordeste do Brasil. Uma da
Braz. J. Biol.. Publicado em: 05/08/2019
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4. Floristic Differentiation of a Deciduous Seasonal Forest Tree Stratum, Jaguari, RS, Brazil
ABSTRACT This study aims at determining and differentiating the floristic groups of a Deciduous Seasonal Forest’s arboreal component, located on the ridge of the Southern Plateau, in Southern Brazil. Individuals with diameter at breast height ≥ 5.0 cm were sampled in sixty-two plots measuring 10 m × 10 m, which were systematically installed in the fores
Floresta Ambient.. Publicado em: 29/07/2019
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5. Sampling of cashew nuts as an aid to research for the genetic improvement of cashew tree
Resumo: O objetivo deste trabalho foi estimar tamanhos de amostras de castanha-de-caju (Anacardium occidentale) como suporte às atividades de melhoramento genético do cajueiro. As castanhas foram separadas por tamanho: castanhas < 17 mm foram classificadas como tamanho 1 (S1); 17 ≤ castanhas < 19 mm, tamanho 2 (S2); 19 ≤ castanhas < 23 mm, tamanho 3 (S
Pesq. agropec. bras.. Publicado em: 10/06/2019
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6. Structure and Diversity In Ombrophilous Forest in the Zona da Mata of Pernambuco
ABSTRACT The objective of this work was to evaluate the arboreal component of a Dense Ombrophilous Lowland Forest fragment through evaluations of richness, structure and diversity. For the sampling of this component, we implanted 40 sample units of 10 × 25 m. We measured all arboreal individuals who presented circumference at breast height ≥ 15 cm, 1.30 m
Floresta Ambient.. Publicado em: 25/04/2019
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7. Tree Responses to Soil and Edge Effects in a Semideciduous Forest Remnant
ABSTRACT The present study seeks to characterize the composition, structure, and functional traits of the tree stratum of a Semideciduous Forest in Pouso Alegre, MG, Brazil (22º12’43”S and 45º59’30”W), by comparing Edge and Interior habitats and their relation to human impacts and soil variables. The tree community (diameter at 1.3 m (DBH) higher
Floresta Ambient.. Publicado em: 26/07/2018
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8. Occurrence of homobaric and heterobaric leaves in two forest types of southern Brazil
ABSTRACT In ombrophilous forests, light stratification provokes different adjustments by plants for better use of the environmental conditions of each stratum. Among the morphological traits that vary with strata, the presence of bundle sheath extensions (BSEs) is related to water transport, photosynthesis, and leaf mechanical support and classifies leaves a
Acta Bot. Bras.. Publicado em: 2016-06
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9. Structure of the tree stratum of three swamp forest communities in southern Brazil under different soil conditions
Restinga forests are commonly known to be plant communities rather poor in tree species. This study aimed to describe and explain the association between the floristic-structural similarities and the environmental conditions in three Swamp Restinga Forest communities in southern Brazil. In 13 plots of 100 m2 each, we sampled all individual trees (circumfere
Acta Bot. Bras.. Publicado em: 2015-03
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10. Dinâmica da vegetação em um fragmento de mata atlântica no nordeste do Brasil
To test the hypothesis that the physiognomy, structure and dynamics of woody species are influenced by the spatial gradient edge-interior, data were collected from these parameters in 2004, 2007 and 2010 in an Atlantic forest fragment. Species were sampled for the Canopy (DS), with circumference > 15 cm to 1.3 m soil and understory (SB) in circumference betw
Ciênc. Florest.. Publicado em: 2015-03
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11. Mixed rain forest in southeastern Brazil: tree species regeneration and floristic relationships in a remaining stretch of forest near the city of Itaberá, Brazil
The aim of this work was to evaluate the floristic composition, richness, and diversity of the upper and lower strata of a stretch of mixed rain forest near the city of Itaberá, in southeastern Brazil. We also investigated the differences between this conservation area and other stretches of mixed rain forest in southern and southeastern Brazil, as well as
Acta Bot. Bras.. Publicado em: 2013-03
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12. Multivariate method proposition of vertical stratification in natural forest. / Proposição de método multivariado de estratificação vertical em floresta natural.
The objective of this research was to propose a new methodology for vertical stratification of natural forests, based on total tree height, from the application of multivariate techniques. The methodology was compared to others methods used in forest stratification. The structural data used in this work came from a research by Costa Junior (2006) of an Atlan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2011