Relationships between structure of the tree component and environmental variables in a subtropical seasonal forest in the upper Uruguay River valley, Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorMélo, Máida Ariane de-
Autor(es): dc.creatorBudke, Jean Carlos-
Autor(es): dc.creatorOliveira, Carlos Henke-
Data de aceite: dc.date.accessioned2021-10-14T18:17:34Z-
Data de disponibilização: dc.date.available2021-10-14T18:17:34Z-
Data de envio: dc.date.issued2017-12-07-
Data de envio: dc.date.issued2017-12-07-
Data de envio: dc.date.issued2013-12-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/28773-
Fonte completa do material: dc.identifierhttps://dx.doi.org/10.1590/S0102-33062013000400015-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/628097-
Descrição: dc.descriptionThis study aimed to analyze relationships among the structure of the tree component, edaphic variables and canopy discontinuity along a toposequence in a seasonal upland (hillside) forest in southern Brazil. Soil and vegetation were sampled in 25 plots of 20 × 20 m each. We described the vegetation in terms of structure, richness and diversity, as well as by species distribution patterns. We evaluated canopy continuity, determined sloping and calculated spatial coordinates. We applied partial canonical correspondence analysis (pCCA) to determine whether species distribution correlated with environmental and spatial variables. We identified 1201 individuals belonging to 76 species within 30 families. The species with highest density and frequency were Gymnanthes concolor Spreng., Calyptranthes tricona D.Legrand, Eugenia moraviana O.Berg and Trichilia claussenii DC. The pCCAs indicated significant correlations with environmental and spatial variables. Sand content, boron content and soil density collectively explained 36.17% of the species matrix variation (total inertia), whereas the spatial variables x, y and xy² collectively explained 14.27%. The interaction between environmental and spatial variables explained nearly 4.5%. However, 45.05% remained unexplained, attributed to stochastic variation or unmeasured variables. Terrain morphology and canopy discontinuity had no apparent influence on richness, and changes in species distribution were correlated with sloping, which affects soil features and determines the directional distribution of some species.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherSociedade Botânica do Brasil-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rightsActa Botanica Brasilica - (CC BY-NC) - All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Fonte: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400015&lng=en&tlng=en. Acesso em: 27 ago. 2020.-
Palavras-chave: dc.subjectDeclive-
Palavras-chave: dc.subjectDrenagem-
Palavras-chave: dc.subjectAutocorrelação espacial-
Palavras-chave: dc.subjectSolos - análise-
Título: dc.titleRelationships between structure of the tree component and environmental variables in a subtropical seasonal forest in the upper Uruguay River valley, Brazil-
Tipo de arquivo: dc.typelivro digital-
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