| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
28/11/2006 |
|
Data da última atualização: |
17/06/2015 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
|
Autoria: |
RAKOCEVIC, M.; MEDRADO, M. J. S.; LUCAMBIO, F.; VALDUGA, T. A. |
|
Título: |
Caracterização de crescimento do caule da erva-mate (Ilex paraguariensis St. Hil.) cultivada em dois ambientes luminosos contrastantes. |
|
Ano de publicação: |
2006 |
|
Fonte/Imprenta: |
In: CONGRESO SUDAMERICANO DE LA YERBA MATE, 4.; REUNIÓN TÉCNICA DE LA YERBA MATE, 4., EXPOSICIÓN DE AGRONEGOCIOS DE LA YERBA MATE, 2., 2006, Posadas. Actas. Posadas: INTA, 2006. |
|
Páginas: |
p. 244-249. |
|
Idioma: |
Português |
|
Palavras-Chave: |
Alongamento do caule; Fotoperíodo; Metâmeras; Ritmicidade; Temperaturas baixas. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00804nam a2200205 a 4500
001 1312406
005 2015-06-17
008 2006 bl uuuu u00u1 u #d
100 1 $aRAKOCEVIC, M.
245 $aCaracterização de crescimento do caule da erva-mate (Ilex paraguariensis St. Hil.) cultivada em dois ambientes luminosos contrastantes.$h[electronic resource]
260 $aIn: CONGRESO SUDAMERICANO DE LA YERBA MATE, 4.; REUNIÓN TÉCNICA DE LA YERBA MATE, 4., EXPOSICIÓN DE AGRONEGOCIOS DE LA YERBA MATE, 2., 2006, Posadas. Actas. Posadas: INTA$c2006
300 $ap. 244-249.
653 $aAlongamento do caule
653 $aFotoperíodo
653 $aMetâmeras
653 $aRitmicidade
653 $aTemperaturas baixas
700 1 $aMEDRADO, M. J. S.
700 1 $aLUCAMBIO, F.
700 1 $aVALDUGA, T. A.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
25/03/2002 |
|
Data da última atualização: |
25/03/2002 |
|
Autoria: |
POST, D. F.; FIMBRES, A.; MATTHIAS, A. D.; SANO, E. E.; ACCIOLY, L.; BATCHILY, A. K.; FERREIRA, L. G. |
|
Título: |
Prediciting soil albedo from soil color and spectral reflectance data. |
|
Ano de publicação: |
2000 |
|
Fonte/Imprenta: |
Soil Science Society of America Journal, Madison, v. 64, n. 3, p. 1027-1034, 2000. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The albedo of earthsurface features, such as soil, is na important component of models that define land-surface meteorological processes. If land surfaces have no vegetative cover, soil properties determine the amount of solar radiation absorbed or reflected. We evaluated the influence of two soil properties, soil color and soil moisture, on soil albedo. Two soil moisture conditions were studied, air dry and wet, defined as the condition when the water films are absorbed by the soil and no water glistens on the soil surface. The albedos for 26 U.S. soils were measured with na Eppley pyranometer, which integrates radiant energy in wavelengths between 0.3 to 2.8 um. Soil colors were measured with a Minolta Chroma Meter and spectral reflectance curves from 0.45 to 0.9 um (measured in 0.1-um increments) were determined with a multispectral radiometer. All measurements were made on maior 2-mm smooth soil surfaces, and the dry and wet data were combined for statistical analyses. Soil albedos were significantly correlated with Munsell soil color value (r2=0.93), blue (r2=0.82), green (r2=0.90), red (r2=0.93), near infrared (NIR), (r2= 0.95), and sum of the four bands (r2= 0.94); however, the slopes and intercepts for these relationships were different. The 52 spectral curves yielded nine cluster groups, which mostly related to the Munsell soil color value and soil albedo soil characteristics. The 0.3-to 2.8-um albedos of smoothed soils can be accurately estimated using the regression relationship: soil albedo (0.3-2.8um) = 0.069 (color value) - 0.114. Using the regression equations presented here, spectral reflectance data in selected visible and NIR bands can also be used to predict albedo. MenosThe albedo of earthsurface features, such as soil, is na important component of models that define land-surface meteorological processes. If land surfaces have no vegetative cover, soil properties determine the amount of solar radiation absorbed or reflected. We evaluated the influence of two soil properties, soil color and soil moisture, on soil albedo. Two soil moisture conditions were studied, air dry and wet, defined as the condition when the water films are absorbed by the soil and no water glistens on the soil surface. The albedos for 26 U.S. soils were measured with na Eppley pyranometer, which integrates radiant energy in wavelengths between 0.3 to 2.8 um. Soil colors were measured with a Minolta Chroma Meter and spectral reflectance curves from 0.45 to 0.9 um (measured in 0.1-um increments) were determined with a multispectral radiometer. All measurements were made on maior 2-mm smooth soil surfaces, and the dry and wet data were combined for statistical analyses. Soil albedos were significantly correlated with Munsell soil color value (r2=0.93), blue (r2=0.82), green (r2=0.90), red (r2=0.93), near infrared (NIR), (r2= 0.95), and sum of the four bands (r2= 0.94); however, the slopes and intercepts for these relationships were different. The 52 spectral curves yielded nine cluster groups, which mostly related to the Munsell soil color value and soil albedo soil characteristics. The 0.3-to 2.8-um albedos of smoothed soils can be accurately estimated using the regressi... Mostrar Tudo |
|
Palavras-Chave: |
Refletancia. |
|
Thesagro: |
Solo. |
|
Thesaurus NAL: |
reflectance; soil. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02365naa a2200241 a 4500
001 1564558
005 2002-03-25
008 2000 bl --- 0-- u #d
100 1 $aPOST, D. F.
245 $aPrediciting soil albedo from soil color and spectral reflectance data.
260 $c2000
520 $aThe albedo of earthsurface features, such as soil, is na important component of models that define land-surface meteorological processes. If land surfaces have no vegetative cover, soil properties determine the amount of solar radiation absorbed or reflected. We evaluated the influence of two soil properties, soil color and soil moisture, on soil albedo. Two soil moisture conditions were studied, air dry and wet, defined as the condition when the water films are absorbed by the soil and no water glistens on the soil surface. The albedos for 26 U.S. soils were measured with na Eppley pyranometer, which integrates radiant energy in wavelengths between 0.3 to 2.8 um. Soil colors were measured with a Minolta Chroma Meter and spectral reflectance curves from 0.45 to 0.9 um (measured in 0.1-um increments) were determined with a multispectral radiometer. All measurements were made on maior 2-mm smooth soil surfaces, and the dry and wet data were combined for statistical analyses. Soil albedos were significantly correlated with Munsell soil color value (r2=0.93), blue (r2=0.82), green (r2=0.90), red (r2=0.93), near infrared (NIR), (r2= 0.95), and sum of the four bands (r2= 0.94); however, the slopes and intercepts for these relationships were different. The 52 spectral curves yielded nine cluster groups, which mostly related to the Munsell soil color value and soil albedo soil characteristics. The 0.3-to 2.8-um albedos of smoothed soils can be accurately estimated using the regression relationship: soil albedo (0.3-2.8um) = 0.069 (color value) - 0.114. Using the regression equations presented here, spectral reflectance data in selected visible and NIR bands can also be used to predict albedo.
650 $areflectance
650 $asoil
650 $aSolo
653 $aRefletancia
700 1 $aFIMBRES, A.
700 1 $aMATTHIAS, A. D.
700 1 $aSANO, E. E.
700 1 $aACCIOLY, L.
700 1 $aBATCHILY, A. K.
700 1 $aFERREIRA, L. G.
773 $tSoil Science Society of America Journal, Madison$gv. 64, n. 3, p. 1027-1034, 2000.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
