| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | mtc-m16b.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repositório | cptec.inpe.br/walmeida/2004/06.16.08.42 (acesso restrito) |
| Última Atualização | 2004:12.06.02.00.00 (UTC) administrator |
| Repositório de Metadados | cptec.inpe.br/walmeida/2004/06.16.08.42.40 |
| Última Atualização dos Metadados | 2022:03.26.18.00.04 (UTC) administrator |
| Chave Secundária | INPE-10789-PRE/6246 |
| DOI | 10.1111/j.1529-8817.2003.00772.x |
| ISBN/ISSN | 1354-1013 |
| ISSN | 1354-1013 |
| Chave de Citação | NepstadLSTSSRB:2004:BaAn |
| Título | Amazon drought and its implications for forest flammability and tree growth: a basin-wide analysis  |
| Ano | 2004 |
| Mês | may. |
| Data de Acesso | 06 maio 2024 |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 2585 KiB |
| 2. Contextualização | |
| Autor | 1 Nepstad, Daniel 2 Lefebvre, Paul 3 Silva, Urbano Lopes da 4 Tomasella, Javier 5 Schlesinger, Peter 6 Solorzano, Luiz 7 Ray, Paulo Moutinho David 8 Benito, José Guerreira |
| Identificador de Curriculo | 1 2 3 4 8JMKD3MGP5W/3C9JHE3 |
| Grupo | 1 DMA-INPE-MCT-BR |
| Afiliação | 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil |
| Endereço de e-Mail | fabia@cptec.inpe.br |
| Revista | Global Change Biology |
| Volume | 10 |
| Número | 5 |
| Páginas | 704-717 |
| Histórico (UTC) | 2004-12-06 10:29:31 :: Fabia -> administrator :: 2008-06-10 19:50:38 :: administrator -> estagiario :: 2010-05-11 16:53:41 :: estagiario -> marciana :: 2011-12-05 12:59:00 :: marciana -> administrator :: 2004 2022-03-26 18:00:04 :: administrator -> marciana :: 2004 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Tipo de Versão | publisher |
| Palavras-Chave | evapotranspiration fire hydrology NPP rainforest soil moisture tropical water balance |
| Resumo | Severe drought in moist tropical forests provokes large carbon emissions by increasing forest flammability and tree mortality, and by suppressing tree growth. The frequency and severity of drought in the tropics may increase through stronger El Nino Southern Oscillation (ENSO) episodes, global warming, and rainfall inhibition by land use change. However, little is known about the spatial and temporal patterns of drought in moist tropical forests, and the complex relationships between patterns of drought and forest fire regimes, tree mortality, and productivity. We present a simple geographic information system soil water balance model, called RisQue (Risco de Queimada - Fire Risk) for the Amazon basin that we use to conduct an analysis of these patterns for 1996-2001. RisQue features a map of maximum plant-available soil water (PAW(max)) developed using 1565 soil texture profiles and empirical relationships between soil texture and critical soil water parameters. PAW is depleted by monthly evapotranspiration (ET) fields estimated using the Penman-Monteith equation and satellite-derived radiation inputs and recharged by monthly rain fields estimated from 266 meteorological stations. Modeled PAW to 10 m depth (PAW(10 m)) was similar to field measurements made in two Amazon forests. During the severe drought of 2001, PAW(10 m) fell to below 25% of PAW(max) in 31% of the region's forests and fell below 50% PAW(max) in half of the forests. Field measurements and experimental forest fires indicate that soil moisture depletion below 25% PAW(max) corresponds to a reduction in leaf area index of approximately 25%, increasing forest flammability. Hence, approximately one-third of Amazon forests became susceptible to fire during the 2001 ENSO period. Field measurements also suggest that the ENSO drought of 2001 reduced carbon storage by approximately 0.2 Pg relative to years without severe soil moisture deficits. RisQue is sensitive to spin-up time, rooting depth, and errors in ET estimates. Improvements in our ability to accurately model soil moisture content of Amazon forests will depend upon better understanding of forest rooting depths, which can extend to beyond 15 m. RisQue provides a tool for early detection of forest fire risk. |
| Área | MET |
| Arranjo | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Amazon drought 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 | |
| Idioma | en |
| Arquivo Alvo | Nepstad_Amazon drought and its implications.pdf |
| Grupo de Usuários | administrator marciana |
| Visibilidade | shown |
| Detentor da Cópia | SID/SCD |
| Política de Arquivamento | denypublisher denyfinaldraft |
| Permissão de Leitura | deny from all and allow from 150.163 |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/46JKC45 |
| Divulgação | WEBSCI; PORTALCAPES; MGA. |
| Acervo Hospedeiro | cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel electronicmailaddress format identifier isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |