Estrutura Do Componente Arbóreo E Arborescentede Um Fragmento Urbano No Município De Sério, Rio Grande Do Sul, Brasil

Ariotti, Ana Paula; Eichler, Fabiano Eduardo; Freitas, Elisete Maria de

doi:10.5902/1980509824193

Cited by 2 publications

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“…According to Gomide et al (2006), the variation of species between communities can be represented and quantified through various ways, the most common being by means of diversity indices. Indices of Shannon, Simpson and Pielou are, respectively, mathematical formulations often used to quantify diversity, dominance and evenness of forest species (Gomide et al, 2006;Guedes & Krupek, 2016;Ariotti et al, 2016;Corsini et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Spatialization of Tree Species Diversity in the State of Minas Gerais

et al. 2019

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The state of Minas Gerais has a high ecological relevance mainly due to its forest species diversity. Understanding the spatialization of that diversity is of importance to develop environmental public policies. The hypothesis of this study is that the tree species diversity from different forest types, in the state of Minas Gerais, presents distribution with spatial dependence. Thus, the objective of this work was to prove that spatial dependence and to relate it between the forest types. Data from the project called "Forest Inventory of Minas Gerais" were used to calculate indices of Shannon, Simpson and Pielou. We used geostatistical and kriging tools to create spatial maps. As results, the mappings indicated that the state presents well-defined gradients of diversity and richness of forest species, increasing in North-South and from West-East directions. The spatial dependence and the spatialization of the tree species diversity show that the geostatistical modeling is a tool that supports the forest resource management. The maps of diversity can be used as indicators of potential areas for creating Conservation Units, establishing ecological corridors, besides supporting environmental policy development.

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Section: Introductionmentioning

confidence: 99%

Spatialization of Tree Species Diversity in the State of Minas Gerais

et al. 2019

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Caracterização Florística E Estrutural De Um Fragmento Florestal Na Região Central Do Rio Grande Do Sul

Felker

Rovedder²,

Stefanello³

et al. 2018

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O conhecimento da estrutura e composição de espécies florestais, juntamente com o entendimento da formação de grupos florísticos é um importante subsídio para a definição de estratégias de conservação e restauração florestal. O presente estudo analisou a estrutura, diversidade e agrupamentos florísticos de um fragmento florestal com histórico de degradação no Parque Estadual Quarta Colônia, região central do Rio Grande do Sul. Em 2012, foram avaliados os indivíduos arbóreos com CAP ≥ 15 cm, em 16 parcelas de 10 x 10 m. Para análise da estrutura florística foram calculados densidade e frequência em dados absolutos, diversidade Shannon (H’) e equabilidade de Pielou (J). A caracterização da vegetação foi realizada através da análise de agrupamento, pelo método Twinspan. O fragmento apresentou grupos em estágios iniciais e avançados de sucessão. Dentre as espécies levantadas Escallonia bifida se destacou como indicadora na formação dos grupos florísticos de áreas abertas. Os altos valores de densidade e frequência da espécie, também a caracterizam como a mais importante na estrutura horizontal do fragmento florestal, demonstrando potencial para utilização em ações de restauração.Palavra-chave: grupos florísticos; Escallonia bifida; sucessão ecológica. FLORISTIC AND STRUCTURAL CHARACTERIZATION OF A FOREST FRAGMENT IN THE CENTRAL REGION OF RIO GRANDE DO SUL STATE ABSTRACT:The knowledge of the structure and composition of forest species together with the understanding of the formation of floristic groups is an important subsidy for the definition of conservation and restoration strategies. The present study analyzed the structure, diversity and floristic clusters of a forest fragment with a history of degradation, in the State Park Quarta Colônia, central region of Rio Grande do Sul. In 2012, tree individuals with CBH ≥ 15 cm were evaluated in 16 plots of 10x10 m. For analysis of the floristic structure density and frequency were calculated in absolute data, Shannon diversity (H ') and Pielou equability (J). The vegetation characterization was performed through the cluster analysis, using the Twinspan method. The fragment presented groups in the early and advanced stages of succession. Among the raised species Escallonia bifida was highlighted as an indicator in the formation of floristic groups of open areas. The high values of density and frequency of the species also characterize it as the most important in the horizontal structure of the forest fragment, demonstrating potential for use in restoration actions.Keywords: Floristic groups, Escallonia bifida, ecological succession. DOI:

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Estrutura Do Componente Arbóreo E Arborescentede Um Fragmento Urbano No Município De Sério, Rio Grande Do Sul, Brasil

Cited by 2 publications

References 1 publication

Spatialization of Tree Species Diversity in the State of Minas Gerais

Spatialization of Tree Species Diversity in the State of Minas Gerais

Caracterização Florística E Estrutural De Um Fragmento Florestal Na Região Central Do Rio Grande Do Sul

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