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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
17/08/2006 |
Data da última atualização: |
08/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MALHI, Y.; BAKER, T. R.; PHILLIPS, O. L.; ALMEIDA, S.; ALVAREZ, E.; ARROYO, L.; CHAVE, J.; CZIMCZIK, C. I.; DI FIORE, A.; HIGUCHI, N.; KILLEEN, T. J.; LAURANCE, S. G.; LAURANCE, W. F.; LEWIS, S. L.; MONTOYA, L. M. M.; MONTEAGUDO, A.; NEILL, D. A.; VARGAS, P. N.; PATIÑO, S.; PITMAN, N. C. A.; QUESADA, C. A.; SALOMÃO, R.; SILVA, J. N. M.; LEZAMA, A. T.; MARTÍNEZ, R. V.; TERBORGH, J.; VINCETI, B.; LLOYD, J. |
Afiliação: |
YADVINDER MALHI, UNIVERSITY OF EDINBURGH; TIMOTHY R. BAKER, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE; OLIVER L. PHILLIPS, UNIVERSITY OF LEEDS; SAMUEL ALMEIDA, MUSEU PARAENSE EMILIO GOELDI; ESTEBAN ALVAREZ, INTERCONEXIÓN ELÉCTRICA S.A.; LUZMILLA ARROYO, MUSEO NOEL KEMPFF MERCADO; JEROME CHAVE, CNRS/UPS; CLAUDIA I. CZIMCZIK, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE; ANTHONY DI FIORE, NEW YORK UNIVERSITY; NIRO HIGUCHI, INSTITITO NATIONAL DE PESQUISAS AMAZÔNICAS; TIMOTHY J. KILLEEN, CENTER FOR APPLIED BIODIVERSITY SCIENCE, CONSERVATION INTERNATIONAL; SUSAN G. LAURANCE, SMITHSONIAN TROPICAL RESEARCH INSTITUTE; WILLIAM F. LAURANCE, SMITHSONIAN TROPICAL RESEARCH INSTITUTE; SIMON L. LEWIS, UNIVERSITY OF LEEDS; LINA MARÍA MERCADO MONTOYA, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE; ABEL MONTEAGUDO, UNIVERSIDAD NACIONAL SAN ANTONIO ABAD DEL CUSCO; DAVID A. NEILL, FUNDACION JATUN SACHA; PERCY NÚÑEZ VARGAS, UNIVERSIDAD NACIONAL SAN ANTONIO ABAD DEL CUSCO; SANDRA PATIÑO, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE; NIGEL C.A. PITMAN, DUKE UNIVERSITY; CARLOS ALBERTO QUESADA, UNIVERSIDADE DE BRASÍLIA; RAFAEL SALOMÃO, MUSEU PARAENSE EMILIO GOELDI; JOSÉ NATALINO MACÊDO SILVA, Embrapa Amazônia Oriental; ARMANDO TORRES LEZAMA, UNIVERSIDAD DE LOS ANDES; RODOLFO VÁSQUEZ MARTÍNEZ, JARDIN BOTANICO DE MISSOURI; JOHN TERBORGH, DUKE UNIVERSITY; BARBARA VINCETI, UNIVERSITY OF EDINBURGH; JON LLOYD, MAX-PLANCK-INSTITUT FÜR BIOGEOCHEMIE. |
Título: |
The above-ground coarse wood productivity of 104 neotropical forest plots. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Global Change Biology, v. 10, n. 5, p. 563-591, 2004. |
DOI: |
https://doi.org/10.1111/j.1529-8817.2003.00778.x |
Idioma: |
Inglês |
Conteúdo: |
The net primary production of tropical forests and its partitioning between long-lived carbon pools (wood) and shorter-lived pools (leaves, fine roots) are of considerable importance in the global carbon cycle. However, these terms have only been studied at a handful of field sites, and with no consistent calculation methodology. Here we calculate above-ground coarse wood carbon productivity for 104 forest plots in lowland New World humid tropical forests, using a consistent calculation methodology that incorporates corrections for spatial variations in tree-size distributions and wood density, and for census interval length. Mean wood density is found to be lower in more productive forests. We estimate that above-ground coarse wood productivity varies by more than a factor of three (between 1.5 and 5.5 Mg C ha−1 a−1) across the Neotropical plots, with a mean value of 3.1 Mg C ha−1 a−1. There appear to be no obvious relationships between wood productivity and rainfall, dry season length or sunshine, but there is some hint of increased productivity at lower temperatures. There is, however, also strong evidence for a positive relationship between wood productivity and soil fertility. Fertile soils tend to become more common towards the Andes and at slightly higher than average elevations, so the apparent temperature/productivity relationship is probably not a direct one. Coarse wood productivity accounts for only a fraction of overall tropical forest net primary productivity, but the available data indicate that it is approximately proportional to total above-ground productivity. We speculate that the large variation in wood productivity is unlikely to directly imply an equivalent variation in gross primary production. Instead a shifting balance in carbon allocation between respiration, wood carbon and fine root production seems the more likely explanation. MenosThe net primary production of tropical forests and its partitioning between long-lived carbon pools (wood) and shorter-lived pools (leaves, fine roots) are of considerable importance in the global carbon cycle. However, these terms have only been studied at a handful of field sites, and with no consistent calculation methodology. Here we calculate above-ground coarse wood carbon productivity for 104 forest plots in lowland New World humid tropical forests, using a consistent calculation methodology that incorporates corrections for spatial variations in tree-size distributions and wood density, and for census interval length. Mean wood density is found to be lower in more productive forests. We estimate that above-ground coarse wood productivity varies by more than a factor of three (between 1.5 and 5.5 Mg C ha−1 a−1) across the Neotropical plots, with a mean value of 3.1 Mg C ha−1 a−1. There appear to be no obvious relationships between wood productivity and rainfall, dry season length or sunshine, but there is some hint of increased productivity at lower temperatures. There is, however, also strong evidence for a positive relationship between wood productivity and soil fertility. Fertile soils tend to become more common towards the Andes and at slightly higher than average elevations, so the apparent temperature/productivity relationship is probably not a direct one. Coarse wood productivity accounts for only a fraction of overall tropical forest net primary productivity, ... Mostrar Tudo |
Palavras-Chave: |
Brasil; Produção de madeira. |
Thesagro: |
Carbono; Fertilidade do Solo; Floresta Tropical; Produtividade. |
Thesaurus Nal: |
Amazonia. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 03344naa a2200541 a 4500 001 1407947 005 2022-11-08 008 2004 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1111/j.1529-8817.2003.00778.x$2DOI 100 1 $aMALHI, Y. 245 $aThe above-ground coarse wood productivity of 104 neotropical forest plots. 260 $c2004 520 $aThe net primary production of tropical forests and its partitioning between long-lived carbon pools (wood) and shorter-lived pools (leaves, fine roots) are of considerable importance in the global carbon cycle. However, these terms have only been studied at a handful of field sites, and with no consistent calculation methodology. Here we calculate above-ground coarse wood carbon productivity for 104 forest plots in lowland New World humid tropical forests, using a consistent calculation methodology that incorporates corrections for spatial variations in tree-size distributions and wood density, and for census interval length. Mean wood density is found to be lower in more productive forests. We estimate that above-ground coarse wood productivity varies by more than a factor of three (between 1.5 and 5.5 Mg C ha−1 a−1) across the Neotropical plots, with a mean value of 3.1 Mg C ha−1 a−1. There appear to be no obvious relationships between wood productivity and rainfall, dry season length or sunshine, but there is some hint of increased productivity at lower temperatures. There is, however, also strong evidence for a positive relationship between wood productivity and soil fertility. Fertile soils tend to become more common towards the Andes and at slightly higher than average elevations, so the apparent temperature/productivity relationship is probably not a direct one. Coarse wood productivity accounts for only a fraction of overall tropical forest net primary productivity, but the available data indicate that it is approximately proportional to total above-ground productivity. We speculate that the large variation in wood productivity is unlikely to directly imply an equivalent variation in gross primary production. Instead a shifting balance in carbon allocation between respiration, wood carbon and fine root production seems the more likely explanation. 650 $aAmazonia 650 $aCarbono 650 $aFertilidade do Solo 650 $aFloresta Tropical 650 $aProdutividade 653 $aBrasil 653 $aProdução de madeira 700 1 $aBAKER, T. R. 700 1 $aPHILLIPS, O. L. 700 1 $aALMEIDA, S. 700 1 $aALVAREZ, E. 700 1 $aARROYO, L. 700 1 $aCHAVE, J. 700 1 $aCZIMCZIK, C. I. 700 1 $aDI FIORE, A. 700 1 $aHIGUCHI, N. 700 1 $aKILLEEN, T. J. 700 1 $aLAURANCE, S. G. 700 1 $aLAURANCE, W. F. 700 1 $aLEWIS, S. L. 700 1 $aMONTOYA, L. M. M. 700 1 $aMONTEAGUDO, A. 700 1 $aNEILL, D. A. 700 1 $aVARGAS, P. N. 700 1 $aPATIÑO, S. 700 1 $aPITMAN, N. C. A. 700 1 $aQUESADA, C. A. 700 1 $aSALOMÃO, R. 700 1 $aSILVA, J. N. M. 700 1 $aLEZAMA, A. T. 700 1 $aMARTÍNEZ, R. V. 700 1 $aTERBORGH, J. 700 1 $aVINCETI, B. 700 1 $aLLOYD, J. 773 $tGlobal Change Biology$gv. 10, n. 5, p. 563-591, 2004.
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
13/12/2019 |
Data da última atualização: |
13/12/2019 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
MIELE, M. |
Afiliação: |
MARCELO MIELE, CNPSA. |
Título: |
Custos de produção de suínos em 2018 nos países da rede InterPIG. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Concórdia: Embrapa Suínos e Aves, 2019. |
Páginas: |
18 p. |
Série: |
(Embrapa Suínos e Aves. Comunicado Técnico, 565). |
Idioma: |
Português |
Thesagro: |
Custo de Produção; Suinocultura. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207049/1/final9279.pdf
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Marc: |
LEADER 00469nam a2200145 a 4500 001 2116897 005 2019-12-13 008 2019 bl uuuu u0uu1 u #d 100 1 $aMIELE, M. 245 $aCustos de produção de suínos em 2018 nos países da rede InterPIG.$h[electronic resource] 260 $aConcórdia: Embrapa Suínos e Aves$c2019 300 $a18 p. 490 $a(Embrapa Suínos e Aves. Comunicado Técnico, 565). 650 $aCusto de Produção 650 $aSuinocultura
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