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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
21/08/2006 |
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Data da última atualização: |
12/02/2025 |
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Autoria: |
LEWIS, S. L.; PHILLIPS, O. L.; BAKER, T. R.; LLOYD, J.; MALHI, Y.; ALMEIDA, S.; HIGUCHI, N.; LAURANCE, W. F.; NEILL, D. A.; SILVA, J. N. M.; TERBORGH, J.; LEZAMA, A. T.; VÁSQUEZ MARTÍNEZ, R.; BROWN, S.; CHAVE, J.; KUEBLER, C.; NÚÑEZ VARGAS, P.; VINCETI, B. |
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Afiliação: |
S. L. LEWIS, UNIVERSITY OF LEEDS; O. L. PHILLIPS, UNIVERSITY OF LEEDS; T. R. BAKER, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE; J. LLOYD, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE; Y. MALHI, UNIVERSITY OF EDINBURG; S. ALMEIDA, MUSEU PARAENSE EMILIO GOELDI; N. HIGUCHI, INSTITUTO NACIONAL DE PESQUISAS AMAZÔNICAS; W. F. LAURANCE, SMITHSONIAN TROPICAL RESEARCH INSTITUTE; D. A. NEILL, MISSOURI BOTANICAL GARDEN; JOSE NATALINO MACEDO SILVA, CPATU; J. TERBORGH, DUKE UNIVERSITY; A. TORRES LEZAMA, UNIVERSIDAD DE LOS ANDES; R. VÁSQUEZ MARTÍNEZ, JARDIN BOTANICO DE MISSOURI; S. BROWN, WINROCK INTERNATIONAL; J. CHAVE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE; C. KUEBLER, CENTER FOR APPLIED BIODIVERSITY SCIENCE, CONSERVATION INTERNATIONAL; P. NÚÑEZ VARGAS, UNIVERSIDAD NACIONAL SAN ANTONIO ABAD DEL CUSCO; B. VINCETI, UNIVERSITY OF EDINBURG. |
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Título: |
Concerted changes in tropical forest structure and dynamics: evidence from 50 South American long-term plots. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Philippine Transactions of Royal Society of London, B, v. 359, n. 1443, p. 421-436, 2004. |
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DOI: |
10.1098/rstb.2003.1431 |
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Idioma: |
Inglês |
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Conteúdo: |
Several widespread changes in the ecology of old?growth tropical forests have recently been documented for the late twentieth century, in particular an increase in stem turnover (pan?tropical), and an increase in above?ground biomass (neotropical). Whether these changes are synchronous and whether changes in growth are also occurring is not known. We analysed stand?level changes within 50 long?term monitoring plots from across South America spanning 1971?2002. We show that: (i) basal area (BA: sum of the cross?sectional areas of all trees in a plot) increased significantly over time (by 0.10 ±; 0.04 m2 ha−1 yr−1, mean ± 95%CI) as did both (ii) stand?level BA growth rates (sum of the increments of BA of surviving trees and BA of new trees that recruited into a plot); and (iii) stand?level BA mortality rates (sum of the cross?sectional areas of all trees that died in a plot). Similar patterns were observed on a per?stem basis: (i) stem density (number of stems per hectare; 1 hectare is 104 m2) increased significantly over time (0.94 ± 0.63 stems ha−1 yr−1); as did both (ii) stem recruitment rates; and (iii) stem mortality rates. In relative terms, the pools of BA and stem density increased by 0.38 ± 0.15% and 0.18 ± 0.12% yr−1, respectively. The fluxes into and out of these pools?stand?level BA growth, stand?level BA mortality, stem recruitment and stem mortality rates?increased, in relative terms, by an order of magnitude more. The gain terms (BA growth, stem recruitment) consistently exceeded the loss terms (BA loss, stem mortality) throughout the period, suggesting that whatever process is driving these changes was already acting before the plot network was established. Large long?term increases in stand?level BA growth and simultaneous increases in stand BA and stem density imply a continent?wide increase in resource availability which is increasing net primary productivity and altering forest dynamics. Continent?wide changes in incoming solar radiation, and increases in atmospheric concentrations of CO2 and air temperatures may have increased resource supply over recent decades, thus causing accelerated growth and increased dynamism across the world's largest tract of tropical forest. MenosSeveral widespread changes in the ecology of old?growth tropical forests have recently been documented for the late twentieth century, in particular an increase in stem turnover (pan?tropical), and an increase in above?ground biomass (neotropical). Whether these changes are synchronous and whether changes in growth are also occurring is not known. We analysed stand?level changes within 50 long?term monitoring plots from across South America spanning 1971?2002. We show that: (i) basal area (BA: sum of the cross?sectional areas of all trees in a plot) increased significantly over time (by 0.10 ±; 0.04 m2 ha−1 yr−1, mean ± 95%CI) as did both (ii) stand?level BA growth rates (sum of the increments of BA of surviving trees and BA of new trees that recruited into a plot); and (iii) stand?level BA mortality rates (sum of the cross?sectional areas of all trees that died in a plot). Similar patterns were observed on a per?stem basis: (i) stem density (number of stems per hectare; 1 hectare is 104 m2) increased significantly over time (0.94 ± 0.63 stems ha−1 yr−1); as did both (ii) stem recruitment rates; and (iii) stem mortality rates. In relative terms, the pools of BA and stem density increased by 0.38 ± 0.15% and 0.18 ± 0.12% yr−1, respectively. The fluxes into and out of these pools?stand?level BA growth, stand?level BA mortality, stem recruitment and stem mortality rates?increased, in relative terms, by an order of magnitude more. The gain terms (BA... Mostrar Tudo |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Biomassa; Carbono; Desenvolvimento Florestal; Floresta Tropical; Mortalidade. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03453naa a2200421 a 4500
001 1408525
005 2025-02-12
008 2004 bl uuuu u00u1 u #d
024 7 $a10.1098/rstb.2003.1431$2DOI
100 1 $aLEWIS, S. L.
245 $aConcerted changes in tropical forest structure and dynamics$bevidence from 50 South American long-term plots.$h[electronic resource]
260 $c2004
520 $aSeveral widespread changes in the ecology of old?growth tropical forests have recently been documented for the late twentieth century, in particular an increase in stem turnover (pan?tropical), and an increase in above?ground biomass (neotropical). Whether these changes are synchronous and whether changes in growth are also occurring is not known. We analysed stand?level changes within 50 long?term monitoring plots from across South America spanning 1971?2002. We show that: (i) basal area (BA: sum of the cross?sectional areas of all trees in a plot) increased significantly over time (by 0.10 ±; 0.04 m2 ha−1 yr−1, mean ± 95%CI) as did both (ii) stand?level BA growth rates (sum of the increments of BA of surviving trees and BA of new trees that recruited into a plot); and (iii) stand?level BA mortality rates (sum of the cross?sectional areas of all trees that died in a plot). Similar patterns were observed on a per?stem basis: (i) stem density (number of stems per hectare; 1 hectare is 104 m2) increased significantly over time (0.94 ± 0.63 stems ha−1 yr−1); as did both (ii) stem recruitment rates; and (iii) stem mortality rates. In relative terms, the pools of BA and stem density increased by 0.38 ± 0.15% and 0.18 ± 0.12% yr−1, respectively. The fluxes into and out of these pools?stand?level BA growth, stand?level BA mortality, stem recruitment and stem mortality rates?increased, in relative terms, by an order of magnitude more. The gain terms (BA growth, stem recruitment) consistently exceeded the loss terms (BA loss, stem mortality) throughout the period, suggesting that whatever process is driving these changes was already acting before the plot network was established. Large long?term increases in stand?level BA growth and simultaneous increases in stand BA and stem density imply a continent?wide increase in resource availability which is increasing net primary productivity and altering forest dynamics. Continent?wide changes in incoming solar radiation, and increases in atmospheric concentrations of CO2 and air temperatures may have increased resource supply over recent decades, thus causing accelerated growth and increased dynamism across the world's largest tract of tropical forest.
650 $aAmazonia
650 $aBiomassa
650 $aCarbono
650 $aDesenvolvimento Florestal
650 $aFloresta Tropical
650 $aMortalidade
653 $aBrasil
700 1 $aPHILLIPS, O. L.
700 1 $aBAKER, T. R.
700 1 $aLLOYD, J.
700 1 $aMALHI, Y.
700 1 $aALMEIDA, S.
700 1 $aHIGUCHI, N.
700 1 $aLAURANCE, W. F.
700 1 $aNEILL, D. A.
700 1 $aSILVA, J. N. M.
700 1 $aTERBORGH, J.
700 1 $aLEZAMA, A. T.
700 1 $aVÁSQUEZ MARTÍNEZ, R.
700 1 $aBROWN, S.
700 1 $aCHAVE, J.
700 1 $aKUEBLER, C.
700 1 $aNÚÑEZ VARGAS, P.
700 1 $aVINCETI, B.
773 $tPhilippine Transactions of Royal Society of London, B$gv. 359, n. 1443, p. 421-436, 2004.
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Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 6 | |
| 2. |  | SILVA, B. M. P. da; BÖRNER, J.; NASCIMENTO, N. C. C. do; AZEVEDO, C. M. B. C. de. Oportunidades e barreiras de ordem social e econômica para a preservação dos recursos hídricos por parte dos pequenos agricultores no Nordeste paraense. In: SEMINÁRIO GESTABACIAS, 1., 2010, Belém, PA. Resultados de pesquisas em mesobacias do Nordeste paraense e sua aplicação no desenvolvimento rural. Belém, PA: Embrapa Amazônia Oriental: Projeto Gestabacias, 2010. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | REIS, J. dos S.; MARTORANO, L. G.; BRIENZA JUNIOR, S.; SALOMÃO, R. de P.; MONTEIRO, D. C. A.; NASCIMENTO, N. C. C. Espécimes de pau-rosa (Aniba rosaeodora Ducke - Lauraceae) na Floresta Nacional dos Tapajós: espécie nativa ameaçada de extinção na Amazônia. In: SEMINÁRIO DE PESQUISAS CIENTÍFICAS DA FLORESTA NACIONAL DO TAPAJÓS, 2., 2014, Santarém. Anais... Santarém: Instituto Chico Mendes, 2014. p. 154-160.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | VENTURIERI, A.; VASCONCELOS, M. A. M. de; NASCIMENTO, N. C. C. do; OLIVEIRA, M. E. C.; MOURÃO JUNIOR, M.; FRANÇA, L. F. de. Mapeamento e caracterização das regiões paraenses com ocorrência de oleaginosas nativas e potencial para a produção de óleo vegetal. In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 3., 2009, Brasília, DF. Artigos técnicos-científicos. Brasília, DF: MCT: MBC, 2009. v. 3, p. 919-920.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | MARTORANO, L. G.; NASCIMENTO, N. C. C. do; BATALHA, S. S. A.; RUSCHEL, A. R.; LISBOA, L. S.; PORTO, J. I. R.; MELO, S. de S. C. de. Reunião anual conjunta dos projetos Robin e Amazalert: excursão técnica. Belém, PA: Embrapa Amazônia Oriental, 2016. 30 p. (Embrapa Amazônia Oriental. Documentos, 417).| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 6. | | MARTORANO, L. G.; GUEDES, M. C.; LISBOA, L. S.; MORAES, J. R. da S. C. de; NASCIMENTO, N. C. C. do; SALOMÃO, R. de P.; MARTORANO, P. G.; APARECIDO, L. E. de O.; TOURNE, D. C. M.; DIAS, C. T. dos S.; LIRA-GUEDES, A. C.; REALE, F. C. G.; OLIVEIRA JUNIOR, R. C. de; SILVA, L. M. da; PEREIRA, M. G.; WADT, L. H. de O.; SILVA, K. E. da. Condições topoclimáticas e serviços ecossistêmicos prestados pelas castanheiras no Bioma Amazônia. In: WADT, L. H. de O.; MAROCCOLO, J. F.; GUEDES, M. C.; SILVA, K. E. da (ed.). Castanha-da-amazônia: estudos sobre a espécie e sua cadeia de valor. Brasília, DF: Embrapa, 2023. v. 1. cap. 12, p. 315-352. ODS 2, ODS 3, ODS 8, ODS 11, ODS 12, ODS 13, ODS 17.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Rondônia. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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