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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
07/11/2017 |
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Data da última atualização: |
02/07/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO, A. L. de; OLIVEIRA, M. V. N. d'; PUTZ, F. E.; OLIVEIRA, L. C. de. |
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Afiliação: |
Anelena Lima de Carvalho, Instituto Nacional de Pesquisas da Amazônia (Inpa); MARCUS VINICIO NEVES D OLIVEIRA, CPAF-Acre; Francis E. Putz, University of Florida; LUIS CLAUDIO DE OLIVEIRA, CPAF-Acre. |
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Título: |
Natural regeneration of trees in selectively logged forest in western Amazonia. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Forest Ecology and Management, Australia, v. 392, p. 36-44, May 2017. |
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ISSN: |
0378-1127 |
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Idioma: |
Inglês |
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Conteúdo: |
We evaluated the impacts of selective logging on tree regeneration one, four, and eight years after harvests in Antimary State Forest in the State of Acre, Brazil. We inventoried tree seedlings, saplings, and poles (>50 cm tall to <10 cm DBH) on secondary roads, log landing, and skid trails, as well as in the bole and crown zones of canopy gaps created by felling; for comparison we also sampled areas not affected directly by logging. We compared these habitats on the basis soil (physical) characteristics, canopy cover, and floristic composition. For areas one and four years after logging, we supplemented the ground-based information with aerial LiDAR data. By eight years post-logging the size class distributions of tree regeneration in all habitat types resembled those in unlogged areas, and densities were only lower in crown gaps. Eight years after logging, relative densities of pioneer trees were highest on secondary roads and log landings; no among habitat differences were observed in the relative densities of non-pioneer species at any time along the chronosequence. Tree species diversity (Fisher's alpha) converged on unlogged values on skid trails, bole gaps, and crown gaps at 8-years post-logging, but values remained lower on secondary roads and log landings. Canopy openness was greatest one year after logging, especially in log landings (mean 45.4 ± SE 4.5%) whereas four and eight years post-logging it did not exceed 10% and no differences were found among habitats. Soil bulk density was elevated relative to un-logged areas only on log landings one and four years after logging, and this difference disappeared by eight years postlogging. The total area disturbed by logging varied from 7.0% to 8.6% with nearly half of the totals in felling gaps (3.0-3.7%). MenosWe evaluated the impacts of selective logging on tree regeneration one, four, and eight years after harvests in Antimary State Forest in the State of Acre, Brazil. We inventoried tree seedlings, saplings, and poles (>50 cm tall to <10 cm DBH) on secondary roads, log landing, and skid trails, as well as in the bole and crown zones of canopy gaps created by felling; for comparison we also sampled areas not affected directly by logging. We compared these habitats on the basis soil (physical) characteristics, canopy cover, and floristic composition. For areas one and four years after logging, we supplemented the ground-based information with aerial LiDAR data. By eight years post-logging the size class distributions of tree regeneration in all habitat types resembled those in unlogged areas, and densities were only lower in crown gaps. Eight years after logging, relative densities of pioneer trees were highest on secondary roads and log landings; no among habitat differences were observed in the relative densities of non-pioneer species at any time along the chronosequence. Tree species diversity (Fisher's alpha) converged on unlogged values on skid trails, bole gaps, and crown gaps at 8-years post-logging, but values remained lower on secondary roads and log landings. Canopy openness was greatest one year after logging, especially in log landings (mean 45.4 ± SE 4.5%) whereas four and eight years post-logging it did not exceed 10% and no differences were found among habitats. S... Mostrar Tudo |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Análisis estadístico; Explotación forestal; Floresta Estadual do Antimary (AC); Manejo florestal; Manejo forestal; Regeneración natural; Rio Branco (AC); Sena Madureira (AC); Western Amazon. |
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Thesagro: |
Administração florestal; Análise estatística; Exploração florestal; Extração da madeira; Regeneração natural. |
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Thesaurus Nal: |
Forest management; Logging; Natural regeneration; Statistical analysis. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166234/1/26400.pdf
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Marc: |
LEADER 03073naa a2200421 a 4500
001 2079064
005 2021-07-02
008 2017 bl uuuu u00u1 u #d
022 $a0378-1127
100 1 $aCARVALHO, A. L. de
245 $aNatural regeneration of trees in selectively logged forest in western Amazonia.$h[electronic resource]
260 $c2017
520 $aWe evaluated the impacts of selective logging on tree regeneration one, four, and eight years after harvests in Antimary State Forest in the State of Acre, Brazil. We inventoried tree seedlings, saplings, and poles (>50 cm tall to <10 cm DBH) on secondary roads, log landing, and skid trails, as well as in the bole and crown zones of canopy gaps created by felling; for comparison we also sampled areas not affected directly by logging. We compared these habitats on the basis soil (physical) characteristics, canopy cover, and floristic composition. For areas one and four years after logging, we supplemented the ground-based information with aerial LiDAR data. By eight years post-logging the size class distributions of tree regeneration in all habitat types resembled those in unlogged areas, and densities were only lower in crown gaps. Eight years after logging, relative densities of pioneer trees were highest on secondary roads and log landings; no among habitat differences were observed in the relative densities of non-pioneer species at any time along the chronosequence. Tree species diversity (Fisher's alpha) converged on unlogged values on skid trails, bole gaps, and crown gaps at 8-years post-logging, but values remained lower on secondary roads and log landings. Canopy openness was greatest one year after logging, especially in log landings (mean 45.4 ± SE 4.5%) whereas four and eight years post-logging it did not exceed 10% and no differences were found among habitats. Soil bulk density was elevated relative to un-logged areas only on log landings one and four years after logging, and this difference disappeared by eight years postlogging. The total area disturbed by logging varied from 7.0% to 8.6% with nearly half of the totals in felling gaps (3.0-3.7%).
650 $aForest management
650 $aLogging
650 $aNatural regeneration
650 $aStatistical analysis
650 $aAdministração florestal
650 $aAnálise estatística
650 $aExploração florestal
650 $aExtração da madeira
650 $aRegeneração natural
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAnálisis estadístico
653 $aExplotación forestal
653 $aFloresta Estadual do Antimary (AC)
653 $aManejo florestal
653 $aManejo forestal
653 $aRegeneración natural
653 $aRio Branco (AC)
653 $aSena Madureira (AC)
653 $aWestern Amazon
700 1 $aOLIVEIRA, M. V. N. d'
700 1 $aPUTZ, F. E.
700 1 $aOLIVEIRA, L. C. de
773 $tForest Ecology and Management, Australia$gv. 392, p. 36-44, May 2017.
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Embrapa Acre (CPAF-AC) |
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