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1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemarte3.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador6qtX3pFwXQZ3r59YCT/H3Fj2
Repositóriosid.inpe.br/iris@1905/2005/08.03.23.16
Última Atualização2018:01.04.13.05.06 (UTC) marciana
Repositório de Metadadossid.inpe.br/iris@1905/2005/08.03.23.17
Última Atualização dos Metadados2018:06.06.03.55.14 (UTC) administrator
Chave SecundáriaINPE-9299-PRE/4964
Rótulo10219
Chave de CitaçãoManziKREONZSCAWKG:2002:LoTeMe
TítuloThe long term measurements of energy and COý fluxes over LBA pasture and forest sites in Rondônia
Ano2002
Data Secundária20021104
Data de Acesso15 jun. 2024
Tipo SecundárioPRE CI
Número de Arquivos1
Tamanho33 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 EventoInternational LBA Scientific Conference, 2.
Localização do EventoManaus, Br
Data7-10 July 2002
Tipo TerciárioSessão 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 Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Palavras-ChaveMETEOROLOGIA
Rondônia
medição
variações anuais
energia
oxigênio
fluxos
florestas
measurement
annual variations
energy
oxygen
fluxes
forests
ResumoOn 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.
ÁreaMET
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Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreementnão têm arquivos
4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/6qtX3pFwXQZ3r59YCT/H3Fj2
URL dos dados zipadoshttp://urlib.net/zip/6qtX3pFwXQZ3r59YCT/H3Fj2
Arquivo Alvo9299.pdf
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Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3EUPEJL
Acervo Hospedeirosid.inpe.br/banon/2001/04.03.15.36
6. Notas
Campos Vaziosaffiliation 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
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