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  <controlfield tag="003">BR-BrBNA</controlfield>
  <controlfield tag="005">20260410101920.0</controlfield>
  <controlfield tag="008">260410b2019    bl.qr|pooa||| 00| 0 eng |</controlfield>
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    <subfield code="b">eng</subfield>
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    <subfield code="a">K10</subfield>
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    <subfield code="a">Lustosa Junior, Ilvan Medeiros </subfield>
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    <subfield code="a">Castro, Renato Vin&#xED;cius Oliveira </subfield>
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    <subfield code="a">Gaspar, Ricardo de Oliveira </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Ara&#xFA;jo, Juliana Baldan Costa Neves </subfield>
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    <subfield code="a">Aquino, Fabiana de Gois </subfield>
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  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Competition Indexes to Evaluate Tree Growth in a Semi-Deciduous Seasonal Forest</subfield>
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    <subfield code="a">Publica&#xE7;&#xE3;o on-line, 24 ref.; 7 tables; 2 illus; Summary (En)</subfield>
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ABSTRACT

Most of the studies that analyze the behavior of tree competition approach even-aged plantations.
Therefore, it is possible to notice a lack of this kind of information regarding natural forests with
high biodiversity. The objective of this study was to evaluate the competition in a fragment of
Semi-Deciduous Seasonal Forest, according to the ecologic group, light depending and 
nondepending groups for all species sampled in the fragment. The Distance Independent Competition
Index and Semi-Distance Independent Competition Index were applied in this study. The basal
area in larger trees index, without the radius of influence, was the most efficient to analyze how
the competition affects the growth of the specimens in the studied fragment. It was stated that
evaluating the competition per ecologic group is more efficient. The results confirm that the
forest competition cannot be determined by considering only a fixed radius of influence that
embraces the neighbors and the subject tree.

Keywords: Atlantic Forest, ecologic groups, radius competition, forest management.





&#xCD;ndices de Competi&#xE7;&#xE3;o na Avalia&#xE7;&#xE3;o do Crescimento Arb&#xF3;reo em Floresta Estacional Semidecidual

RESUMO

A maioria dos estudos que analisa o comportamento da competi&#xE7;&#xE3;o arb&#xF3;rea &#xE9; voltada para plantios
homog&#xEA;neos e equi&#xE2;neos. Nota-se, portanto, uma car&#xEA;ncia de informa&#xE7;&#xF5;es deste tipo em florestas
naturais de elevada biodiversidade. Objetivou-se com este trabalho avaliar a competi&#xE7;&#xE3;o em um
fragmento de Floresta Estacional Semidecidual, por grupo ecol&#xF3;gico, grupos demandantes e n&#xE3;o
demandantes de luz para todas as esp&#xE9;cies amostradas no fragmento. Foram empregados &#xED;ndices
de competi&#xE7;&#xE3;o independentes da dist&#xE2;ncia e semidependentes da dist&#xE2;ncia. O &#xED;ndice BAL (basal
area in larger trees), sem raio de influ&#xEA;ncia, obteve o melhor desempenho para analisar como a
competi&#xE7;&#xE3;o afeta o crescimento dos indiv&#xED;duos no fragmento estudado. Concluiu-se que avaliar
a competi&#xE7;&#xE3;o por grupo ecol&#xF3;gico &#xE9; mais eficaz, e os resultados confirmam que a competi&#xE7;&#xE3;o
florestal n&#xE3;o pode ser determinada apenas pela aplica&#xE7;&#xE3;o de um raio fixo de influ&#xEA;ncia dos
vizinhos em rela&#xE7;&#xE3;o &#xE0; &#xE1;rvore-objeto.

Palavras-chave: Mata Atl&#xE2;ntica, grupos ecol&#xF3;gicos, raios de concorr&#xEA;ncia, manejo florestal.</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">MATA ATL&#xC2;NTICA</subfield>
  </datafield>
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    <subfield code="a">MANEJO</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">FLORESTA</subfield>
  </datafield>
  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">2929</subfield>
    <subfield code="9">347953</subfield>
    <subfield code="d">Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994</subfield>
    <subfield code="o">2025-0452</subfield>
    <subfield code="t">Floresta e Ambiente (Brazil)</subfield>
    <subfield code="x">1415-0980  /  ISSN 2179-8087 0nline</subfield>
    <subfield code="g">v. 26(4) p. 1-12; (2019)</subfield>
    <subfield code="w">BR2026000333</subfield>
  </datafield>
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    <subfield code="u">https://www.scielo.br/j/floram/a/sgdQbp6mNzksWwFRghgB6Ws/?format=pdf&amp;lang=en</subfield>
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    <subfield code="c">ANA</subfield>
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    <subfield code="c">341320</subfield>
    <subfield code="d">341320</subfield>
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