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 | Acesso ao texto completo restrito à biblioteca da Embrapa Territorial. Para informações adicionais entre em contato com cnpm.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
11/11/2013 |
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Data da última atualização: |
01/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TEIXEIRA, A. H. de C.; SCHERER-WARREN, M.; LOPES, H. L.; HERNANDEZ, F. B. T.; ANDRADE, R. G.; NEALE, C. M. U. |
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Afiliação: |
ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; MORRIS SCHERER-WARREN, ANA; HÉLIO L. LOPES, UNIVERSIDADE DO VALE DO SÃO FRANCISCO; FERNANDO B. T. HERNANDEZ, UNESP; RICARDO GUIMARAES ANDRADE, CNPM; CHRISTOPHER M. U. NEALE, UTAH STATE UNIVERSITY. |
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Título: |
Application of MODIS images for modelling the energy balance components in the semi-arid conditions of Brazil. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Remote Sensing for Agriculture, Ecosystems and Hydrology, v. 8887, p. 888719-1-888719-11, 2013. |
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ISBN: |
1996-756X |
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Idioma: |
Inglês |
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Conteúdo: |
In the semi-arid areas of Petrolina municipality, Northeast Brazil, irrigated agriculture has replaced the natural vegetation, thus the quantification of the energy exchanges between the plants and the low atmosphere is important. MODIS satellite images and agro-meteorological data for the years of 2010 and 2011 were used together, for modelling the energy balance components under these conditions. Surface albedo (0), NDVI and surface temperature (T0) were ther emote sensing parameters required to calculate the latent heat flux (E) and the surface resistance to evapotranspiration (rs) on a large scale. The daily net radiation (Rn) was retrieved from 0, air temperature (Ta) and transmissivity (sw), allowing the quantification of the sensible heat flux (H) by residual in the energy balance. With threshold values for rs, it was possible to do a simplified vegetation classification. The incident solar radiation (RS) partitioned as Rn ranged from 0.40 to 0.51, corresponding respectively to periods after the rainy season and the driest conditions of the year, with the observed differences between irrigated crops and natural ecosystem not significant. Considering all periods along the year, the averaged fractions of Rn partitioned as H, were 31 and 78%, for irrigated crops and natural vegetation, respectively, while as E the corresponding ratios were 69 and 22%. Heat advection from the dry areas surrounding irrigated plots was observed with E exceeding Rn by 9% during the coldest periods. The models tested herein can be used for monitoring the energy exchanges in agro-ecosystems under conditions of land use and climate change. MenosIn the semi-arid areas of Petrolina municipality, Northeast Brazil, irrigated agriculture has replaced the natural vegetation, thus the quantification of the energy exchanges between the plants and the low atmosphere is important. MODIS satellite images and agro-meteorological data for the years of 2010 and 2011 were used together, for modelling the energy balance components under these conditions. Surface albedo (0), NDVI and surface temperature (T0) were ther emote sensing parameters required to calculate the latent heat flux (E) and the surface resistance to evapotranspiration (rs) on a large scale. The daily net radiation (Rn) was retrieved from 0, air temperature (Ta) and transmissivity (sw), allowing the quantification of the sensible heat flux (H) by residual in the energy balance. With threshold values for rs, it was possible to do a simplified vegetation classification. The incident solar radiation (RS) partitioned as Rn ranged from 0.40 to 0.51, corresponding respectively to periods after the rainy season and the driest conditions of the year, with the observed differences between irrigated crops and natural ecosystem not significant. Considering all periods along the year, the averaged fractions of Rn partitioned as H, were 31 and 78%, for irrigated crops and natural vegetation, respectively, while as E the corresponding ratios were 69 and 22%. Heat advection from the dry areas surrounding irrigated plots was observed with E exceeding Rn by 9% during the coldest p... Mostrar Tudo |
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Palavras-Chave: |
Latent heat flux; NDVI; Sensible heat flux; Surface albedo. |
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Thesaurus Nal: |
Surface temperature. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02429naa a2200253 a 4500
001 1970929
005 2017-06-01
008 2013 bl uuuu u00u1 u #d
022 $a1996-756X
100 1 $aTEIXEIRA, A. H. de C.
245 $aApplication of MODIS images for modelling the energy balance components in the semi-arid conditions of Brazil.
260 $c2013
520 $aIn the semi-arid areas of Petrolina municipality, Northeast Brazil, irrigated agriculture has replaced the natural vegetation, thus the quantification of the energy exchanges between the plants and the low atmosphere is important. MODIS satellite images and agro-meteorological data for the years of 2010 and 2011 were used together, for modelling the energy balance components under these conditions. Surface albedo (0), NDVI and surface temperature (T0) were ther emote sensing parameters required to calculate the latent heat flux (E) and the surface resistance to evapotranspiration (rs) on a large scale. The daily net radiation (Rn) was retrieved from 0, air temperature (Ta) and transmissivity (sw), allowing the quantification of the sensible heat flux (H) by residual in the energy balance. With threshold values for rs, it was possible to do a simplified vegetation classification. The incident solar radiation (RS) partitioned as Rn ranged from 0.40 to 0.51, corresponding respectively to periods after the rainy season and the driest conditions of the year, with the observed differences between irrigated crops and natural ecosystem not significant. Considering all periods along the year, the averaged fractions of Rn partitioned as H, were 31 and 78%, for irrigated crops and natural vegetation, respectively, while as E the corresponding ratios were 69 and 22%. Heat advection from the dry areas surrounding irrigated plots was observed with E exceeding Rn by 9% during the coldest periods. The models tested herein can be used for monitoring the energy exchanges in agro-ecosystems under conditions of land use and climate change.
650 $aSurface temperature
653 $aLatent heat flux
653 $aNDVI
653 $aSensible heat flux
653 $aSurface albedo
700 1 $aSCHERER-WARREN, M.
700 1 $aLOPES, H. L.
700 1 $aHERNANDEZ, F. B. T.
700 1 $aANDRADE, R. G.
700 1 $aNEALE, C. M. U.
773 $tRemote Sensing for Agriculture, Ecosystems and Hydrology$gv. 8887, p. 888719-1-888719-11, 2013.
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Embrapa Territorial (CNPM) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
23/11/2020 |
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Data da última atualização: |
28/10/2021 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
NASCIMENTO, C. O.; MATTOS, B. B.; DAL MOLIN, S. J.; FIALHO, R. L.; CABRAL-ALBUQUERQUE, E. C. M.; BENITES, V. de M. |
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Afiliação: |
C. O. NASCIMENTO, UFBA; BIANCA BRAZ MATTOS, CNPS; S. J. DAL MOLIN, UESC; R. L. FIALHO, UFBA; E. C. M. CABRAL-ALBUQUERQUE, UFBA; VINICIUS DE MELO BENITES, CNPS. |
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Título: |
Phosphorus diffusion and agronomic efficiency of chicken litter organomineral fertilizers improved with binder materials. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Waste and Biomass Valorization, v. 12, p. 3765-3772, 2021. |
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DOI: |
https://doi.org/10.1007/s12649-020-01274-0 |
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Idioma: |
Inglês |
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Notas: |
Short communication. |
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Conteúdo: |
The use of chicken litter (CL) as a source of nutrients for agriculture is a sustainable alternative to disposal the organic waste generated in poultry production and some granulated organomineral fertilizers (OMFs) have been produced for this purpose. However, the low resistance to breakage of granules of such fertilizers is still limiting large-scale use and storage. Previous work has demonstrated that the use of binder materials is able to provide an increase in resistance to the breaking of granules of OMFs, however, their influence on the dynamics of nutrient release in the soil and agronomic efficiency have not yet been evaluated. Therefore, the objective of this study was to evaluate the effect of the use of additive materials on the release of nutrients into the soil and the agronomic efficiency of organomineral fertilizers. In order to do this, OMFs produced with 3% of different bentonites, kaolinite and magnesium oxide were used. Experiments of phosphorus diffusion in the soil and evaluation of agronomic efficiency in pots demonstrate that the addition of these materials to FOMs does not influence the dynamics of P release and agronomic efficiency, when compared to the control without additives. OMFs containing additive materials to improve their mechanical strength without loss of nutrient release and agronomic efficiency are the main result of this work. |
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Palavras-Chave: |
Eficiência Agronômica; Fertilizante Organomineral. |
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Thesagro: |
Aditivo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02198naa a2200241 a 4500
001 2126958
005 2021-10-28
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s12649-020-01274-0$2DOI
100 1 $aNASCIMENTO, C. O.
245 $aPhosphorus diffusion and agronomic efficiency of chicken litter organomineral fertilizers improved with binder materials.$h[electronic resource]
260 $c2021
500 $aShort communication.
520 $aThe use of chicken litter (CL) as a source of nutrients for agriculture is a sustainable alternative to disposal the organic waste generated in poultry production and some granulated organomineral fertilizers (OMFs) have been produced for this purpose. However, the low resistance to breakage of granules of such fertilizers is still limiting large-scale use and storage. Previous work has demonstrated that the use of binder materials is able to provide an increase in resistance to the breaking of granules of OMFs, however, their influence on the dynamics of nutrient release in the soil and agronomic efficiency have not yet been evaluated. Therefore, the objective of this study was to evaluate the effect of the use of additive materials on the release of nutrients into the soil and the agronomic efficiency of organomineral fertilizers. In order to do this, OMFs produced with 3% of different bentonites, kaolinite and magnesium oxide were used. Experiments of phosphorus diffusion in the soil and evaluation of agronomic efficiency in pots demonstrate that the addition of these materials to FOMs does not influence the dynamics of P release and agronomic efficiency, when compared to the control without additives. OMFs containing additive materials to improve their mechanical strength without loss of nutrient release and agronomic efficiency are the main result of this work.
650 $aAditivo
653 $aEficiência Agronômica
653 $aFertilizante Organomineral
700 1 $aMATTOS, B. B.
700 1 $aDAL MOLIN, S. J.
700 1 $aFIALHO, R. L.
700 1 $aCABRAL-ALBUQUERQUE, E. C. M.
700 1 $aBENITES, V. de M.
773 $tWaste and Biomass Valorization$gv. 12, p. 3765-3772, 2021.
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