Variabilidade espaço-temporal da temperatura e difusividade térmica do solo de Lagoa Seca-PB

Diniz, Júlio Mannuel Tavares; Dantas, Renílson Targino; Filho, José Fideles

doi:10.4136/ambi-agua.1474

Cited by 3 publications

(5 citation statements)

References 18 publications

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“…Therefore, the 0.10 m layer for all months showed a soil temperature fluctuation closer to the 0.05 m layer than to the 0.20 m layer. Similar results were found by Belan et al (2013) and Diniz et al (2014), who found that maximum temperatures occurred at different times. The delay from surface to deeper depths showed that the heat wave requires a certain time period to propagate in the soil because of slow heat conduction capacity through the vertical soil profile, as mentioned above.…”

Section: Rev Bras Cienc Solo 2018;42:e0170221supporting

confidence: 79%

“…In another study developed by Diniz et al (2014) in the state of Paraiba, Brazil, considering depths from 0.05 to 0.15 m, October showed the lowest thermal diffusivity (0.59 × 10 -6 m 2 s -1 ) and June showed the highest (1.11 × 10 -6 m 2 s -1 ) in 2010. According to the authors, June had the greatest rainfall; therefore, the soil pore space was filled with water, providing greater heat conduction capacity.…”

Section: Rev Bras Cienc Solo 2018;42:e0170221mentioning

confidence: 99%

“…The correlation between soil and air temperatures was studied by Azevedo and Galvani (2003), Carvalho et al (2009), Belan et al (2013), and Awe et al (2015), while thermal diffusivity in soil was evaluated by Amaro Filho et al (2008), Diniz et al (2014), Soares et al (2014), and Oliveira et al (2015). Several studies conducted in different soil management systems obtained a significant and inverse relationship between soil temperature and cover crop with residual or cultural biomass (Dourado-Neto et al, 1999;Silva et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been performed to evaluate daily (Kunz et al, 2002;Oliveira et al, 2010;Belan et al, 2013;Diniz et al, 2013aDiniz et al, , 2014, monthly (Diniz et al, 2013a), and yearly (Carneiro et al, 2014) soil temperature fluctuations. The correlation between soil and air temperatures was studied by Azevedo and Galvani (2003), Carvalho et al (2009), Belan et al (2013), and Awe et al (2015), while thermal diffusivity in soil was evaluated by Amaro Filho et al (2008), Diniz et al (2014), Soares et al (2014), and Oliveira et al (2015).…”

Section: Introductionmentioning

confidence: 99%

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Hourly, Daily, and Monthly Soil Temperature Fluctuations in a Drought Tolerant Crop

Farias

Souza

Paiva

et al. 2018

Rev. Bras. Ciênc. Solo

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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. . 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.

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Section: Rev Bras Cienc Solo 2018;42:e0170221supporting

confidence: 79%

Section: Rev Bras Cienc Solo 2018;42:e0170221mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hourly, Daily, and Monthly Soil Temperature Fluctuations in a Drought Tolerant Crop

Farias

Souza

Paiva

et al. 2018

Rev. Bras. Ciênc. Solo

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“…In addition, it can be assumed that the maximum magnitude occurs at 1:00 p.m. [23][24][25]. In this context, Equation ( 24) can be rewritten for the surface (z = 0):…”

Section: Phase Constantmentioning

confidence: 99%

Reformulation of the Used Model to Estimate Soil Temperature

et al. 2022

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The Earth is permanently surrounded by cloud cover that, particularly, is an essential component in the planet’s energy balance. In turn, cloud cover intervenes in the main conditioning factor for soil temperature: solar radiation. In particular, the soil thermal amplitude should be dampened with the attenuation of solar radiation. However, the scientific community rarely analyzes this relationship, neglecting the model that is used to estimate the soil temperature. In this context, the present study seeks to reformulate the model by inserting a variable referent to cloud cover. Thus, to achieve this objective, a physical-mathematical review of the heat flow in the vertical profile of soil is performed. The reformulated model indicates the influence of cloud cover, intervening for both the soil’s heating (nighttime period) and cooling (daytime period). Finally, the reformulated model should be employed to estimate the soil thermal behavior (in particular, on “overcast sky” days).

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Propriedades térmicas do solo: estudo de caso em uma região do semiárido alagoano no nordeste brasileiro

Alves,

Boursheidt,

Querino

et al. 2024

Rev. Bras. Geog. Fis.

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Em um contexto de mudanças climáticas globais, o monitoramento da temperatura do solo é de grande relevância para o entendimento das trocas energéticas do solo com a atmosfera e, portanto, para o balanço energético. Esse estudo foi conduzido em uma área de Caatinga (09º42,664’ S; 37º25,008’ W; 165m) no semiárido alagoano, cujo solo foi classificado como Franco-Argilo-Arenoso. O objetivo deste trabalho foi determinar algumas propriedades térmicas do solo utilizando dados de temperatura do solo e, de maneira indireta, investigar o impacto da precipitação sobre essas propriedades. No intuito de calcular a difusividade térmica do solo (K), foram utilizados três métodos distintos: amplitude, fase e logarítmico, além das variáveis profundidade de amortecimento, velocidade de propagação da onda e inércia térmica aparente. Para isso foram medidas temperaturas do solo nas profundidades de 0,01; 0,05; 0,10; 0,20 e 0,50m utilizando termopares do tipo E (cobre- constantan). A difusividade térmica do solo diária se encontra dentro das faixas relatadas na literatura para o nordeste do Brasil. Constatou-se a influência da chuva na K, a qual alcançou máximos no período chuvoso, independentemente do método e da profundidade da camada considerada. Também foram constatados picos de K na época seca durante ocorrências de chuvas significativas. Em média, a difusividade térmica aumentou em 1,38 vezes com o umedecimento do solo.

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Variabilidade espaço-temporal da temperatura e difusividade térmica do solo de Lagoa Seca-PB

Cited by 3 publications

References 18 publications

Hourly, Daily, and Monthly Soil Temperature Fluctuations in a Drought Tolerant Crop

Hourly, Daily, and Monthly Soil Temperature Fluctuations in a Drought Tolerant Crop

Reformulation of the Used Model to Estimate Soil Temperature

Propriedades térmicas do solo: estudo de caso em uma região do semiárido alagoano no nordeste brasileiro

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