| 1. Identificação | |
| Tipo de Referência | Artigo em Evento (Conference Proceedings) |
| Site | marte3.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 6qtX3pFwXQZ3r59YCT/H3FyF |
| Repositório | sid.inpe.br/iris@1905/2005/08.03.23.29 |
| Última Atualização | 2015:11.19.11.59.37 (UTC) marciana |
| Repositório de Metadados | sid.inpe.br/iris@1905/2005/08.03.23.30 |
| Última Atualização dos Metadados | 2018:06.06.03.55.15 (UTC) administrator |
| Chave Secundária | INPE-9310-PRE/4974 |
| Rótulo | 10229 |
| Chave de Citação | SaleskaMuMaDaKiCaWo:2002:CaBaSe |
| Título | Carbon balance and seasonal patterns via eddy covariance measurements in an old-growth Amazon forest  |
| Ano | 2002 |
| Data Secundária | 20021106 |
| Data de Acesso | 11 maio 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 221 KiB |
| 2. Contextualização | |
| Autor | 1 Saleska, Scott R. 2 Munger, William 3 Matross, Daniel M. 4 Dauber, Bruce C. 5 Kirchhoff, Volker Walter Johann Heinrich 6 Camargo, Plinio B. de 7 Wofsy, Steven C. |
| Grupo | 1 DGE-INPE-MCT-BR |
| Nome do Evento | International LBA Scientific Conference, 2. |
| Localização do Evento | Manaus, Br |
| Data | 7-10 July 2002 |
| Histórico (UTC) | 2015-05-21 18:37:13 :: administrator -> marciana :: 2002 2015-11-19 11:59:37 :: marciana -> administrator :: 2002 2018-06-06 03:55:15 :: administrator -> marciana :: 2002 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Palavras-Chave | GEOFÍSICA |
| Resumo | To assess the role of Amazon forests as a source or a sink for atmospheric CO2, we used groundbased biometry measurements together with whole-system CO2 fluxes (via eddy covariance)to explore the ecological and climatic controls on the carbon balance at an old-growth Amazon forest (Tapajos National Forest, Santarem, Para, Brazil). The initial year (April 2001 - April 2002)of eddy covariance measurements suggest that the forest was a modest source to the atmosphere during this period (net ecosystem exchange, NEE = +0.9 Mg C ha-1 yr-1 to the atmosphere, after correcting for "lost flux" during periods of weak mixing when friction velocity was <0.2 m/sec). The magnitude of this correction was significant (+ 1.6 Mg C ha-1 yr-1)but not as large as at many sites, and even without it the forest would be close to carbon balance, with an NEE of -0.7 Mg C ha-1 yr-1. The corrected NEE estimate was consistent with the biometry-based estimate of fluxes from aboveground biomass (0.3 to 4.0 Mg C ha-1 yr-1)during an overlapping two-year period (July 1999 - July 2001). There was marked seasonal variation in NEE that was opposite in phase to what would have been predicted from tree growth rates alone: net ecosystem loss to the atmosphere was observed during the rainy season (January-May), even though wood increment was high during this period; and conversely, net ecosystem uptake was observed in the dry season (August-November)when wood increment was generally low. These patterns appear to be explained by variations in ecosystem respiration losses, which were strongly reduced during the dry season, presumably due to drier soil and litter layer. These results are in contrast to the large uptake and lack of seasonality reported for a site near Manaus, and to the nearly opposite seasonal pattern observed in a southeastern Amazon transitional tropical forest (cerradão)in Mato Grosso, which gained carbon in the rainy season and became carbon-neutral in the dry season. |
| Área | CEA |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Carbon balance and... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/6qtX3pFwXQZ3r59YCT/H3FyF |
| URL dos dados zipados | http://urlib.net/zip/6qtX3pFwXQZ3r59YCT/H3FyF |
| Arquivo Alvo | saleska.pdf |
| Grupo de Usuários | administrator marciana |
| Grupo de Leitores | administrator marciana |
| Visibilidade | shown |
| Permissão de Leitura | allow from all |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EU29DP |
| Acervo Hospedeiro | sid.inpe.br/banon/2001/04.03.15.36 |
| 6. Notas | |
| Campos Vazios | affiliation archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor electronicmailaddress format isbn issn language lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress resumeid rightsholder schedulinginformation secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |