| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | mtc-m12.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 6qtX3pFwXQZ3r59YD6/HJ3wj |
| Repositório | sid.inpe.br/iris@1912/2005/10.10.16.46 (acesso restrito) |
| Última Atualização | 2005:10.10.17.46.00 (UTC) marciana |
| Repositório de Metadados | sid.inpe.br/iris@1912/2005/10.10.16.46.50 |
| Última Atualização dos Metadados | 2018:06.05.00.40.32 (UTC) administrator |
| Chave Secundária | INPE--13078-PRE/8338 |
| DOI | 10.1016/j.foreco.2005.02.062 |
| ISSN | 0378-1127 |
| Chave de Citação | AragãoShimEspiWill:2005:LaPaSp |
| Título | Landscape pattern and spatial variability of leaf area index in Eastern Amazonia  |
| Projeto | Classificação e Monitoramento |
| Ano | 2005 |
| Mês | June |
| Data de Acesso | 12 maio 2024 |
| Tipo de Trabalho | journal article |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 520 KiB |
| 2. Contextualização | |
| Autor | 1 Aragão, Luiz Eduardo Oliveira e Cruz de 2 Shimabukuro, Yosio Edemir 3 Espirito-Santo, Fernando Del Bom 4 Williams, Mathew |
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JJCQ |
| Grupo | 1 DSR-INPE-MCT-BR 2 DSR-INPE-MCT-BR |
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais, Divisão de Sensoriamento Remoto (INPE, DSR) 2 3 4 School of GeoScience, Crew Building, University of Edinburgh, Scotlend, UK |
| Revista | Forest Ecology and Management |
| Volume | 211 |
| Número | 3 |
| Páginas | 240-256 |
| Histórico (UTC) | 2006-03-09 13:17:13 :: sergio -> administrator :: 2006-09-03 21:43:02 :: administrator -> sergio :: 2007-04-23 21:07:05 :: sergio -> administrator :: 2015-10-17 01:58:24 :: administrator -> marciana :: 2005 2016-09-14 13:06:38 :: marciana -> administrator :: 2005 2018-06-05 00:40:32 :: administrator -> marciana :: 2005 |
| 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 | Carbon Ecosystems Forestry Information analysis Plants (botany) Remote sensing Thermal stratification Vegetation Water resources Landscape unit (LU) Leaf area index (LAI) Process modeling Water cycles Land use leaf area index Carbon Ecosystems Foliar Analysis Information Systems Land Use Stratification Water Resources Amazonia South America Western Hemisphere World |
| Resumo | Uncertainties about the implications of land-cover heterogeneity on the Amazonian carbon (C) and water cycles are, in part, related to the lack of information about spatial patterns of key variables that control these fluxes at the regional scale. Leaf area index (LAI) is one of these key variables, regulating a number of ecosystem processes (e.g. evaporation, transpiration and photosynthesis). In order to generate a sampling strategy for LAI across a section of Amazonia, we generated a landscape unit (LU) map for the Tapajos region, Eastern Amazonia, as a basis for stratification. We identified seven primary forest classes, stratified according to vegetation and/or terrain characteristics, and one secondary forest class, covering 80% of the region. Primary forest units were the most representative, covering 62% of the total area. The LAI measurements were carried out in 13 selected LUs. In each LU, we marked out three 50 m x 50 m plots giving a total number of 39 plots (9.75 ha). A pair of LAI-2000 plant canopy analysers was used to estimate LAI. We recorded a total of 25 LAI measurements within each plot. We used the field data to verify the statistical distribution of LAI samples, analyse the LAI variability within and among sites, and show the influence of sample size on LAI variation and precision. The LAI showed a high coefficient of variation at the plot level (0.25 ha), from 5.2% to 23%, but this was reduced at the landscape unit level (three co-located plots, 1.8-12%). The level of precision was < 10% and 15% at the plot and landscape unit level, respectively. The LAI decreased from a dense lowland forest site (5.10) to a secondary forest (3.46) and to a pasture site (1.56). We found evidence for differences in the scale of spatial heterogeneity of closed canopy forest versus open canopy forest and palm forests. Landscape variables could, in part, explain differences in LAI among forest sites, and land use is an important modifier of LAI patterns. The stratified LAI sampling proposed in the present study could cope with three important aspects of C and water fluxes modelling: (1) optimise the information obtained from field measurements, which is an advance for models parameterisation, compared to the usual random sampling; (2) generate information for a subsequent scaling up of point field. |
| Área | SRE |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Landscape pattern 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 | landscape pattern.pdf |
| Grupo de Usuários | administrator sergio |
| Grupo de Leitores | administrator marciana |
| Visibilidade | shown |
| Detentor da Cópia | SID/SCD |
| Política de Arquivamento | denypublisher denyfinaldraft24 |
| Permissão de Leitura | deny from all and allow from 150.163 |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ER446E |
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX. |
| Acervo Hospedeiro | sid.inpe.br/banon/2001/04.06.10.52 |
| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |