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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
15/05/2017 |
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Data da última atualização: |
15/05/2017 |
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Autoria: |
SOUZA, A. P. de; SILVA, A. C. da; TANAKA, A. A.; ULIANA, E. M.; ALMEIDA, F. T. de; KLAR, A. E.; GOMES, A. W. A. |
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Afiliação: |
ADILSON PACHECO DE SOUZA, UFMT; ANDRÉA CARVALHO DA SILVA, UFMT; ADRIANA AKI TANAKA, UFMT; EDUARDO MORGAN ULIANA, UFMT; FREDERICO TERRA DE ALMEIDA, UFMT; ANTONIO EVALDO KLAR, UNESP; ANTHONY WELLINGTON ALMEIDA GOMES, UFRPE. |
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Título: |
Global radiation by simplified models for the state of Mato Grosso, Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 4, p. 215-227, abr. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Radiação global por modelos simplificados para o Estado de Mato Grosso. |
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Conteúdo: |
The objective of this work was to estimate the global radiation by simplified models for the state of Mato Grosso, Brazil. The parameterized coefficients of 15 simplified models were regionally calibrated to estimate the daily global radiation, based only on air temperature, using data from 28 automatic weather stations (AWS) of the network of the Brazilian Meteorology Institute, distributed throughout the different biomes of the state of Mato Grosso. The simplified models are mostly derived from the Hargreaves and Bristow & Campbell methods, with different parameterized coefficients to be calibrated. The coefficient of determination (R2), the mean bias error (MBE), the root mean square error (RMSE), and Willmott’s d index were used to evaluate statistical performance. For the recommendation of models per station and/or biome, the models were rated numerically (position values) according to their specific performance in each statistical indicator. The simplified models derived from Bristow & Campbell showed better statistical performances for estimating daily global radiation. The values of the calibrated coefficients of the same model varied greatly among the AWS and biomes. The R2 values ranged from 0.60 to 0.75, indicating a satisfactory result for the obtained calibrations. The Bristow & Campbell model for the Amazon and the Cerrado and the Goodin model for the Cerrado are recommended, with scattering varying between 1.52 and 4.33 MJ m-2 per day and adjustments greater than 65%. MenosThe objective of this work was to estimate the global radiation by simplified models for the state of Mato Grosso, Brazil. The parameterized coefficients of 15 simplified models were regionally calibrated to estimate the daily global radiation, based only on air temperature, using data from 28 automatic weather stations (AWS) of the network of the Brazilian Meteorology Institute, distributed throughout the different biomes of the state of Mato Grosso. The simplified models are mostly derived from the Hargreaves and Bristow & Campbell methods, with different parameterized coefficients to be calibrated. The coefficient of determination (R2), the mean bias error (MBE), the root mean square error (RMSE), and Willmott’s d index were used to evaluate statistical performance. For the recommendation of models per station and/or biome, the models were rated numerically (position values) according to their specific performance in each statistical indicator. The simplified models derived from Bristow & Campbell showed better statistical performances for estimating daily global radiation. The values of the calibrated coefficients of the same model varied greatly among the AWS and biomes. The R2 values ranged from 0.60 to 0.75, indicating a satisfactory result for the obtained calibrations. The Bristow & Campbell model for the Amazon and the Cerrado and the Goodin model for the Cerrado are recommended, with scattering varying between 1.52 and 4.33 MJ m-2 per day and adjustments greater t... Mostrar Tudo |
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Palavras-Chave: |
Coeficiente parametrizado; Parameterized coefficients; Temperatura do ar. |
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Thesagro: |
Cerrado; Radiação solar. |
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Thesaurus Nal: |
Air temperature; Amazonia; Solar radiation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159881/1/Global-radiation-by-simplified.pdf
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Marc: |
LEADER 02482naa a2200301 a 4500
001 2069616
005 2017-05-15
008 2017 bl uuuu u00u1 u #d
100 1 $aSOUZA, A. P. de
245 $aGlobal radiation by simplified models for the state of Mato Grosso, Brazil.$h[electronic resource]
260 $c2017
500 $aTítulo em português: Radiação global por modelos simplificados para o Estado de Mato Grosso.
520 $aThe objective of this work was to estimate the global radiation by simplified models for the state of Mato Grosso, Brazil. The parameterized coefficients of 15 simplified models were regionally calibrated to estimate the daily global radiation, based only on air temperature, using data from 28 automatic weather stations (AWS) of the network of the Brazilian Meteorology Institute, distributed throughout the different biomes of the state of Mato Grosso. The simplified models are mostly derived from the Hargreaves and Bristow & Campbell methods, with different parameterized coefficients to be calibrated. The coefficient of determination (R2), the mean bias error (MBE), the root mean square error (RMSE), and Willmott’s d index were used to evaluate statistical performance. For the recommendation of models per station and/or biome, the models were rated numerically (position values) according to their specific performance in each statistical indicator. The simplified models derived from Bristow & Campbell showed better statistical performances for estimating daily global radiation. The values of the calibrated coefficients of the same model varied greatly among the AWS and biomes. The R2 values ranged from 0.60 to 0.75, indicating a satisfactory result for the obtained calibrations. The Bristow & Campbell model for the Amazon and the Cerrado and the Goodin model for the Cerrado are recommended, with scattering varying between 1.52 and 4.33 MJ m-2 per day and adjustments greater than 65%.
650 $aAir temperature
650 $aAmazonia
650 $aSolar radiation
650 $aCerrado
650 $aRadiação solar
653 $aCoeficiente parametrizado
653 $aParameterized coefficients
653 $aTemperatura do ar
700 1 $aSILVA, A. C. da
700 1 $aTANAKA, A. A.
700 1 $aULIANA, E. M.
700 1 $aALMEIDA, F. T. de
700 1 $aKLAR, A. E.
700 1 $aGOMES, A. W. A.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 4, p. 215-227, abr. 2017.
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Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
10/08/2021 |
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Data da última atualização: |
01/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CORDEIRO, G. D.; LIPORONI, R.; CAETANO, C. A.; KRUG, C.; MARTÍNEZ-MARTÍNEZ, C. A.; MARTINS, H. O. J.; CARDOSO, R. K. O. A.; ARAUJO, F. F.; ARAUJO, P. C. S.; OLIVEIRA, R.; SCHLINDWEIN, C.; WARRANT, E. J.; DÖTTERL, S.; ALVES-DOS-SANTOS, I. |
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Afiliação: |
GUARACI D. CORDEIRO, Department of Biosciences, Paris-Lodron-University of Salzburg; RODOLFO LIPORONI, Instituto Federal de São Paulo; CAROLINA A. CAETANO, Universidade Federal de São Carlos; CRISTIANE KRUG, CPAA; CARLOS A. MARTÍNEZ-MARTÍNEZ, Universidade de São Paulo; HERBESON O. J. MARTINS, Universidade de São Paulo; RENAN K. O. A. CARDOSO, Universidade de São Paulo; FERNANDA F. ARAUJO, Universidade Federal de Minas Gerais; PRISCILA C. S. ARAÚJO, Universidade Federal de Minas Gerais; REISLA OLIVEIRA, Universidade Federal de Minas Gerais; CLEMENS SCHLINDWEIN, Universidade Federal de Minas Gerais; ERIC J. WARRANT, University of Lund; STEFAN DÖTTERL, Department of Biosciences, Paris-Lodron-University of Salzburg; ISABEL ALVES-DOS-SANTOS, Universidade de São Paulo. |
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Título: |
Nocturnal bees as crop pollinators. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agronomy, v. 11, n. 5, art. 1014, 2021. |
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DOI: |
https://doi.org/10.3390/agronomy11051014 |
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Idioma: |
Inglês |
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Conteúdo: |
Bees are typically diurnal but around 1% of described species have nocturnal activity. Nocturnal bees are still poorly studied due to bias towards studying diurnal insects. However, knowledge concerning their biology and role as crop pollinators has increased. We review the literature on nocturnal bees? traits and their host plants, and assess the crop pollination effectiveness of this neglected group. Nocturnal bees have visual adaptations to cope with low light intensities, and floral scents are a key sensory cue used to find their host flowers. Nocturnal bees generally show high flower constancy, the ability to vibrate flowers, and high transfer rates of pollen grains to stigmas. The flowers visited by nocturnal bees range from small radial and zygomorphic flowers to large brush blossoms; moreover, they visit plants with different flowering strategies. Nocturnal bees are effective pollinators of regional fruit crops in Brazil, such as cambuci (Campomanesia phaea), guaraná (Paullinia cupana), cajá (Spondias mombin), and in North America of cultivated pumpkins (Cucurbita species). However, they most likely are pollinators of several other crops. Strategies to host high numbers of nocturnal bees around cropping areas should be taken, such as preserving adjacent native forests, restricting soil management, providing food resources beyond crop flowers, and avoiding light pollution. |
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Palavras-Chave: |
Crepuscular bees; Floral scent. |
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Thesaurus NAL: |
Biodiversity; Crop production. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02332naa a2200337 a 4500
001 2133387
005 2021-09-01
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/agronomy11051014$2DOI
100 1 $aCORDEIRO, G. D.
245 $aNocturnal bees as crop pollinators.$h[electronic resource]
260 $c2021
520 $aBees are typically diurnal but around 1% of described species have nocturnal activity. Nocturnal bees are still poorly studied due to bias towards studying diurnal insects. However, knowledge concerning their biology and role as crop pollinators has increased. We review the literature on nocturnal bees? traits and their host plants, and assess the crop pollination effectiveness of this neglected group. Nocturnal bees have visual adaptations to cope with low light intensities, and floral scents are a key sensory cue used to find their host flowers. Nocturnal bees generally show high flower constancy, the ability to vibrate flowers, and high transfer rates of pollen grains to stigmas. The flowers visited by nocturnal bees range from small radial and zygomorphic flowers to large brush blossoms; moreover, they visit plants with different flowering strategies. Nocturnal bees are effective pollinators of regional fruit crops in Brazil, such as cambuci (Campomanesia phaea), guaraná (Paullinia cupana), cajá (Spondias mombin), and in North America of cultivated pumpkins (Cucurbita species). However, they most likely are pollinators of several other crops. Strategies to host high numbers of nocturnal bees around cropping areas should be taken, such as preserving adjacent native forests, restricting soil management, providing food resources beyond crop flowers, and avoiding light pollution.
650 $aBiodiversity
650 $aCrop production
653 $aCrepuscular bees
653 $aFloral scent
700 1 $aLIPORONI, R.
700 1 $aCAETANO, C. A.
700 1 $aKRUG, C.
700 1 $aMARTÍNEZ-MARTÍNEZ, C. A.
700 1 $aMARTINS, H. O. J.
700 1 $aCARDOSO, R. K. O. A.
700 1 $aARAUJO, F. F.
700 1 $aARAUJO, P. C. S.
700 1 $aOLIVEIRA, R.
700 1 $aSCHLINDWEIN, C.
700 1 $aWARRANT, E. J.
700 1 $aDÖTTERL, S.
700 1 $aALVES-DOS-SANTOS, I.
773 $tAgronomy$gv. 11, n. 5, art. 1014, 2021.
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Embrapa Amazônia Ocidental (CPAA) |
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