| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | mtc-m21b.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 8JMKD3MGP5W34M/3GD3GEU |
| Repositório | sid.inpe.br/mtc-m21b/2014/05.30.02.21.17 |
| Última Atualização | 2014:09.12.13.10.29 (UTC) administrator |
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2014/05.30.02.21.18 |
| Última Atualização dos Metadados | 2018:06.04.03.04.12 (UTC) administrator |
| DOI | 10.3390/rs6042647 |
| ISSN | 2072-4292 |
| Rótulo | scopus 2014-05 MoreiraTeixGalv:2014:LaSaBr |
| Chave de Citação | MoreiraTeixGalv:2014:LaSaBr |
| Título | Laboratory salinization of Brazilian alluvial soils and the spectral effects of gypsum  |
| Ano | 2014 |
| Data de Acesso | 21 maio 2024 |
| Tipo de Trabalho | journal article |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 2730 KiB |
| 2. Contextualização | |
| Autor | 1 Moreira, Luis Clenio J. 2 Teixeira, Adunias dos Santos 3 Galvão, Lênio Soares |
| Identificador de Curriculo | 1 2 3 8JMKD3MGP5W/3C9JHLF |
| Grupo | 1 2 3 DSR-OBT-INPE-MCTI-GOV-BR |
| Afiliação | 1 Universidade Federal do Ceará (UFC) 2 Universidade Federal do Ceará (UFC) 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Endereço de e-Mail do Autor | 1 cleniojario@gmail.com 2 adunias@ufc.br 3 lenio@ltid.inpe.br |
| Endereço de e-Mail | marcelo.pazos@inpe.br |
| Revista | Remote Sensing |
| Volume | 6 |
| Número | 4 |
| Páginas | 2647-2663 |
| Nota Secundária | B3_GEOGRAFIA B3_ENGENHARIAS_I B4_CIÊNCIAS_AMBIENTAIS B4_GEOCIÊNCIAS B5_CIÊNCIAS_AGRÁRIAS_I |
| Histórico (UTC) | 2018-06-04 03:04:12 :: administrator -> marcelo.pazos@inpe.br :: 2014 |
| 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 | soil salinity remote sensing spectral reflectance absorption bands principal components analysis electrical conductivity continuum removal band depth |
| Resumo | Irrigation-induced salinization is an important land degradation process that affects crop yield in the Brazilian semi-arid region, and gypsum has been used as a corrective measure for saline soils. Fluvent soil samples (180) were treated with increasing levels of salinization of NaCl, MgCl2 and CaCl2. The salinity was gauged using electrical conductivity (EC). Gypsum was added to one split of these samples before they were treated by the saline solutions. Laboratory reflectance spectra were measured at nadir under a controlled environment using a FieldSpec spectrometer, a 250-W halogen lamp and a Spectralon panel. Variations in spectral reflectance and brightness were evaluated using principal component analysis, as well as the continuum-removed absorption depths of major features at 1450, 1950, 1750 and 2200 nm for both the gypsum-treated (TG) and non-treated (NTG) air-dried soil samples as a function of EC. Pearson's correlation coefficients of reflectance and the band depth with EC were also obtained to establish the relationships with salinity. Results showed that NTG samples presented a decrease in reflectance and brightness with increasing CaCl2 and MgCl2 salinization. The reverse was observed for NaCl. Gypsum increased the spectral reflectance of the soil. The best negative correlations between reflectance and EC were observed in the 1500-2400 nm range for CaCl2 and MgCl2, probably because these wavelengths are most affected by water absorption, as Ca and Mg are much more hygroscopic than Na. These decreased after chemical treatment with gypsum. The most prominent features were observed at 1450, 1950 and 1750 nm in salinized-soil spectra. The 2200-nm clay mineral absorption band depth was inversely correlated with salt concentration. From these features, only the 1750 and 2200 nm ones are within atmospheric absorption windows and can be more easily measured using hyperspectral sensors. |
| Área | SRE |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Laboratory salinization of... |
| 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/8JMKD3MGP5W34M/3GD3GEU |
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP5W34M/3GD3GEU |
| Idioma | en |
| Arquivo Alvo | remotesensing-06-02647.pdf |
| Grupo de Usuários | administrator marcelo.pazos@inpe.br |
| Grupo de Leitores | administrator marcelo.pazos@inpe.br |
| Visibilidade | shown |
| Política de Arquivamento | allowpublisher allowfinaldraft |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Repositório Espelho | iconet.com.br/banon/2006/11.26.21.31 |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ER446E |
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.53.28 1 sid.inpe.br/bibdigital/2013/09.13.21.11 1 |
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. |
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url |
| 7. Controle da descrição | |
| e-Mail (login) | marcelo.pazos@inpe.br |
| atualizar | |