| 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/H3Fj2 |
| Repositório | sid.inpe.br/iris@1905/2005/08.03.23.16 |
| Última Atualização | 2018:01.04.13.05.06 (UTC) marciana |
| Repositório de Metadados | sid.inpe.br/iris@1905/2005/08.03.23.17 |
| Última Atualização dos Metadados | 2018:06.06.03.55.14 (UTC) administrator |
| Chave Secundária | INPE-9299-PRE/4964 |
| Rótulo | 10219 |
| Chave de Citação | ManziKREONZSCAWKG:2002:LoTeMe |
| Título | The long term measurements of energy and COý fluxes over LBA pasture and forest sites in Rondônia  |
| Ano | 2002 |
| Data Secundária | 20021104 |
| Data de Acesso | 22 jun. 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 33 KiB |
| 2. Contextualização | |
| Autor | 1 Manzi, Antonio Ocimar 2 Kruijt, B. 3 Randow, Celso von 4 Elbers, J. 5 Oliveira, P. J. 6 Nogueira, Jorge L. M. 7 Zanchi, F. B. 8 Silva, R. L. 9 Cardoso, F. L. 10 Aguiar, R. G. 11 Waterloo, M. 12 Kabat, P. 13 Gomes, B. M. |
| Grupo | 1 CPT-INPE-MCT-BR |
| Nome do Evento | International LBA Scientific Conference, 2. |
| Localização do Evento | Manaus, Br |
| Data | 7-10 July 2002 |
| Tipo Terciário | Sessão Oral |
| Histórico (UTC) | 2015-05-21 18:37:13 :: administrator -> marciana :: 2002 2018-01-04 13:05:07 :: marciana -> administrator :: 2002 2018-06-06 03:55:14 :: 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 | METEOROLOGIA Rondônia medição variações anuais energia oxigênio fluxos florestas measurement annual variations energy oxygen fluxes forests |
| Resumo | On the scope of BR/EU LBA Flux Tower Consortium, the turbulent fluxes of sensible and latent heat, CO2 fluxes and general meteorological variables have been measured continuously in a forest site (Rebio Jaru, 10.08o S, 61.93o W)and in a pasture site (Fazenda Nossa Senhora, 10.75§ S; 62.37§ W)in state of Rondonia, since February 1999. The technique used to measure the fluxes is the eddy covariance technique. On this work, results from these three-year measurements are presented. Seasonal variations of energy and CO2 fluxes are analyzed at both sites. Due to the higher reflectivity and net long wave loss at pasture than at the forest, the net radiation is 16 - 22 lower in the pasture, with the larger differences occurring during dry seasons. The partition of this energy in sensible and latent heat is also different in the two vegetation covers and sensitive to the season. Three-month averaged Bowen ratios (ratio between sensible and latent heat fluxes)ranged from 0.21 during wet seasons to 0.28 during dry seasons at forest and from 0.33 (wet season)to 0.81 (dry season)at the pasture. The major differences between CO2 fluxes at the two sites also occur during dry seasons, when the humidity of the top layers of soil is severely reduced. Both the daytime-averaged Net Ecosystem Exchange (NEE), which is mainly influenced by photosynthesis activity, and nighttimeaveraged NEE, which is dominated by respiration, show clear variations between the seasons, especially at the pasture site, being higher (more negative in the case of daytime)at the wet seasons. The daily NEE values, which represent the difference between photosynthesis and respiration, are negative throughout the year, leading to a high annual uptake at both sites. At the forest, the annual uptake ranges from 4 to 6 ton C / ha / year. In the pasture, the preliminary values are similar, however, a recent analysis indicate that fluxes might be underestimated in calm nights at this site. After applying an appropriate filter for underestimation at low turbulence conditions, final values for the pasture site will be presented. At the forest, apparently there is no underestimation of nighttime fluxes in calm nights. |
| Área | MET |
| Arranjo | The long term... |
| 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/H3Fj2 |
| URL dos dados zipados | http://urlib.net/zip/6qtX3pFwXQZ3r59YCT/H3Fj2 |
| Arquivo Alvo | 9299.pdf |
| Grupo de Usuários | administrator |
| 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/3EUPEJL |
| 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 type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |