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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
19/09/2018 |
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Data da última atualização: |
21/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FARIAS, P. dos S. de; SOUZA, L. da S.; PAIVA, A. DE Q.; OLIVEIRA, Á. S. de; SOUZA, L. D.; LEDO, C. A. da S. |
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Afiliação: |
POLIANNA DOS SANTOS DE FARIAS, UFRB; LUCIANO DA SILVA SOUZA, UFRB; ARLICÉLIO DE QUEIROZ PAIVA, UESC; ÁUREO SILVA DE OLIVEIRA, UFRB; LAERCIO DUARTE SOUZA, CNPMF; CARLOS ALBERTO DA SILVA LEDO, CNPMF. |
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Título: |
Hourly, daily, and monthly soil temperature fluctuations in a drought tolerant crop. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 42, e0170221, 2018. |
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ISSN: |
1806-9657 |
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DOI: |
10.1590/18069657rbcs20170221 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil temperature is a physical property of great agricultural importance in the soil-plant relationship and in energy exchange with the atmosphere. This study was conducted in a degraded Cambissolo Háplico Ta Eutrófico (Cambisol; Inceptisol) in the Irecê Identity Territory, Bahia, Brazil, aiming to evaluate the hourly, daily, and monthly fluctuations of soil temperature at depth, and soil thermal diffusivity in the castor bean crop. Hourly soil temperature data from February 4, 2014, to September 30, 2015, were obtained by using thermocouple sensors (copper-constantan) horizontally installed at 0.05, 0.10, and 0.20 m depths. Soil thermal diffusivity was estimated by phase and amplitude methods. Results showed that, for most days, the soil temperature was at the level recommended for castor bean. The maximum and minimum hourly and daily soil temperatures were observed in October and July, respectively, and the maximum soil temperature values occurred at 4 p.m. (0.05 m), 5 p.m. (0.10 m), and 7 p.m. (0.20 m). Soil temperature variability is low, requiring few measurement points to estimate this factor in an area. The amplitude method led to soil thermal diffusivity values compatible with results in the literature. The absence of a relationship between thermal diffusivity and soil moisture was attributed to the clay-loam soil texture, predominance of micropores, and iron oxides allowing greater approximation to the soil particles, with high thermal diffusivity even under low soil moisture conditions. MenosSoil temperature is a physical property of great agricultural importance in the soil-plant relationship and in energy exchange with the atmosphere. This study was conducted in a degraded Cambissolo Háplico Ta Eutrófico (Cambisol; Inceptisol) in the Irecê Identity Territory, Bahia, Brazil, aiming to evaluate the hourly, daily, and monthly fluctuations of soil temperature at depth, and soil thermal diffusivity in the castor bean crop. Hourly soil temperature data from February 4, 2014, to September 30, 2015, were obtained by using thermocouple sensors (copper-constantan) horizontally installed at 0.05, 0.10, and 0.20 m depths. Soil thermal diffusivity was estimated by phase and amplitude methods. Results showed that, for most days, the soil temperature was at the level recommended for castor bean. The maximum and minimum hourly and daily soil temperatures were observed in October and July, respectively, and the maximum soil temperature values occurred at 4 p.m. (0.05 m), 5 p.m. (0.10 m), and 7 p.m. (0.20 m). Soil temperature variability is low, requiring few measurement points to estimate this factor in an area. The amplitude method led to soil thermal diffusivity values compatible with results in the literature. The absence of a relationship between thermal diffusivity and soil moisture was attributed to the clay-loam soil texture, predominance of micropores, and iron oxides allowing greater approximation to the soil particles, with high thermal diffusivity even under low soi... Mostrar Tudo |
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Thesagro: |
Solo. |
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Thesaurus Nal: |
Soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02205naa a2200229 a 4500
001 2096013
005 2018-09-21
008 2018 bl uuuu u00u1 u #d
022 $a1806-9657
024 7 $a10.1590/18069657rbcs20170221$2DOI
100 1 $aFARIAS, P. dos S. de
245 $aHourly, daily, and monthly soil temperature fluctuations in a drought tolerant crop.$h[electronic resource]
260 $c2018
520 $aSoil temperature is a physical property of great agricultural importance in the soil-plant relationship and in energy exchange with the atmosphere. This study was conducted in a degraded Cambissolo Háplico Ta Eutrófico (Cambisol; Inceptisol) in the Irecê Identity Territory, Bahia, Brazil, aiming to evaluate the hourly, daily, and monthly fluctuations of soil temperature at depth, and soil thermal diffusivity in the castor bean crop. Hourly soil temperature data from February 4, 2014, to September 30, 2015, were obtained by using thermocouple sensors (copper-constantan) horizontally installed at 0.05, 0.10, and 0.20 m depths. Soil thermal diffusivity was estimated by phase and amplitude methods. Results showed that, for most days, the soil temperature was at the level recommended for castor bean. The maximum and minimum hourly and daily soil temperatures were observed in October and July, respectively, and the maximum soil temperature values occurred at 4 p.m. (0.05 m), 5 p.m. (0.10 m), and 7 p.m. (0.20 m). Soil temperature variability is low, requiring few measurement points to estimate this factor in an area. The amplitude method led to soil thermal diffusivity values compatible with results in the literature. The absence of a relationship between thermal diffusivity and soil moisture was attributed to the clay-loam soil texture, predominance of micropores, and iron oxides allowing greater approximation to the soil particles, with high thermal diffusivity even under low soil moisture conditions.
650 $aSoil
650 $aSolo
700 1 $aSOUZA, L. da S.
700 1 $aPAIVA, A. DE Q.
700 1 $aOLIVEIRA, Á. S. de
700 1 $aSOUZA, L. D.
700 1 $aLEDO, C. A. da S.
773 $tRevista Brasileira de Ciência do Solo$gv. 42, e0170221, 2018.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 12. |  | SOUZA, L. da S.; SOUZA, L. D. Metodologia para análise de agregados. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios: anais. Fortaleza: SBCS: UFC, 2009. 1 CD-ROM. Palestras.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 128 | |
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