Effects of diatomite (DE) application on physical properties of soils subjected to freeze-thaw cycles

Angin, İlker; Sari, Serdar; Aksakal, Ekrem Lütfi

doi:10.1016/j.still.2016.02.008

Cited by 20 publications

(6 citation statements)

References 36 publications

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“…Our results showed that the response of soil pore structure to FTCs was more significant in the 0‐to‐75‐mm soil layer (Table 2), where soil had the highest content of silty and sand (93.81%, Table 1). This is consistent with other results that FTCs can affect soil structure differently depending on soil texture (Angin et al., 2016; Fouli et al., 2013; Kværnø & Øygarden, 2006; Oztas & Fayetorbay, 2003). Zhang et al.…”

Section: Discussionsupporting

confidence: 93%

Evaluation of the impact of freeze–thaw cycles on the soil pore structure of alpine meadows using X‐ray computed tomography

Zhao

et al. 2021

Soil Science Soc of Amer J

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Freeze-thaw cycle (FTC) is an extremely complex soil surface process in cold regions, and quantifying the changes in soil pore structure during successive FTCs remains challenging. This study investigated response of soil pore structure to FTCs and revealed the underlying influence on soil water infiltration through an FTC simulation experiment (0, 1, 3, 5, and 10 cycles) and computed tomography (CT) scanning of undisturbed soil cores in an alpine meadow. One FTC involved soil freezing at −10˚C for 12 h, followed by thawing at 20˚C for 12 h. The results showed that CT-measured soil porosity presented a variation trend of increase-decrease during successive FTCs. With increasing number of FTCs, soil porosity first increased and then decreased in the 0-to-75-mm soil layer, decreased after five FTCs in the 75to-150-mm soil layer, and gradually decreased in the 150-to-280-mm soil layer. Pore structures of different soil layers responded differently to FTCs, which was attributed to soil texture. The connectivity of soil pores and soil water infiltration rate decreased considerably after 10 FTCs. Therefore, FTCs changed soil pore structure of the alpine meadow, which was not conducive for soil water infiltration to deep soil layers.

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Section: Discussionsupporting

confidence: 93%

Evaluation of the impact of freeze–thaw cycles on the soil pore structure of alpine meadows using X‐ray computed tomography

Zhao

et al. 2021

Soil Science Soc of Amer J

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“…[21] Showed that frequent freeze-thaw cycles over the winter alleviated a majority of soil compaction at the 0-20 cm depth. Detrimental effects of freezing-thawing on soil aggregates have also been reported by [3,6,7,31,34,41,56]. Although, such phenomena repeatedly occur in reality and in the highlands or cold regions, but technology and human activities interfere the governing processes leading to undesirable outcomes of the system [32,39,54].…”

Section: Introductionmentioning

confidence: 90%

“…Resources of Tarbiat Modares University (TMU), Iran. Due to the necessity of controlling the freezing-thawing conditions and the possibility of placement of plot in the freezing system, the plots with surface dimensions of 50×50 cm and 30 cm in height, and total volume of 0.075 m 3 were used with the ability to move and deploy in the freezing simulator system speci cally manufactured for the study [7]. The plots had iron frames and transparent polycarbonate walls with a high ability to withstand lateral and thermal insulation.…”

Section: The Study Was Carried Out Under Rainfall Simulation Conditiomentioning

confidence: 99%

Effect of a Freezing-thawing Cycle on Overall and Inter-variability of Runoff and Soil Loss Components for a Loess Soil

Gharemahmudli

Sadeghi

Najafinejad

et al. 2021

Preprint

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Background: Because control of runoff generation as well as soil loss is influenced by freezing-thawing, proper knowledge and insight into the freezing-thawing process in combination with other hydrological processes is essential for executives and planners. However, such dynamic phenomenon and corresponding consequences have not been studied adequately. The present study was therefore planned to comparatively analyze the effects of a freezing-thawing cycle on hydrologic behaviors of loess soil from northeast of Iran. Towards that, the small-size (0.5×0.50×0.30 m) erosion plots were subjected to a freezing-thawing cycle in accordance with governing conditions on the region of the origin soil. The plots were subjected to a freezing-thawing treatment through inducing cold air until temperature declined to below -20 °C and lasted for three days using a large cooling compartment system, and then were kept in the laboratory with ambient temperature of above 10 °C for two days. The treated plots as well as untreated (control) plots were then exposed to a simulated rainfall with an intensity of 72 mm h-1 and 0.5 h duration while they were placed on a slope of 20%. Results: The results indicated that the hybrid processes of freezing-thawing, and splash and interrill erosions significantly affected runoff generation and soil loss at small plots. So that the time to runoff reduced by 1.65 times in the freezing-thawing treatment compared to that reported for the control treatment. The runoff volume and soil loss also increased at tune of 1.38 and 2.90 times in treated plots in comparison with those measured for the untreated plots. Laboratorial results indicated significant differences (p< 0.006) between runoff and soil loss behaviors in plots subjected to a freezing-thawing cycle and those of control condition. Conclusion: The performance of ice lenses and freezing fronts and creating near-saturation moisture after completing the cycle were evaluated as the most important factors affecting the different soil behaviors under frozen-thawed cycle.

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“…De manera similar Qu y Sun (2016) refieren que (30% v/v) de diatomita disminuyó la densidad aparente en niveles de 8.7%, 10.3% y 13.2% de los suelos limoso, franco limoso y franco arcilloso limoso, respecto al control. Similar reporte lo hacen Angin et al (2016), aplicando 30% de diatomita al suelo. En suelo franco arenoso, las dosis de diatomita de Quicapata, no influye en la variable densidad aparente, este hecho probablemente obedezca al tipo de poros que se incrementan en la diatomita y el tamaño de poros que éste provocaría en el suelo por el tamaño de diatomita aplicada (2mm) que resulta más grande a las fracciones de arena fina del suelo, contrariamente a lo hallado por Noferesti et al (2018), quienes en suelo arenoso reportan disminución de la densidad aparente, empleando 80 g de diatomita /kg de suelo (8% p/p).…”

Section:  Del Efecto En La Densidad Aparente Del Suelounclassified

Efecto de niveles de diatomita en propiedades físicas de suelos, en laboratorio-Ayacucho. 2019

Gómez

2020

RevInvestigacion

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Debido a la necesidad de optimizar el agua, se estudia a la diatomita, poco explorado en agricultura. La diatomita, roca sedimentaria de origen orgánico, aporta sílice y posee elevada porosidad y superficie específica. En Ayacucho la diatomita o “Quicato” de elevado contenido de silicio, porosidad superior al 80% y muy poco contaminante, podría emplearse en la actividad agrícola. Se evaluó en condiciones de laboratorio la aplicación de dosis de diatomita (0, 5, 10 y 15% v/v) de 2 mm, en dos suelos, de textura franco arcillo arenosa (Fr.Ar.A.) y franco arenosa (Fr.A.) de Luricocha - Huanta, a fin de valorar sus efectos sobre las propiedades físicas entre ellas la capacidad de campo, densidad aparente, densidad real y porosidad total de los suelos. Luego de incubar conservando a capacidad de campo los suelos durante seis meses, se encontró que incorporar 5, 10 y 15 % (v/v) de diatomita, aumenta significativamente la capacidad de campo en 2.87%, 8.39%, 9.87% (Fr.Ar.A) y 3.14%, 6.46%, 9.77% (Fr.A.), respecto al testigo. 15% (v/v) de diatomita en suelo Fr. A, disminuye respecto al testigo en 5.20%, la densidad aparente y en 9.66% la porosidad total. En suelo Fr.Ar.A., no influyen significativamente en ambos parámetros, sin embargo, muestra tendencia creciente en poros totales. La densidad real en ambos suelos, disminuye linealmente con las dosis de diatomita, de 2.56 a 2.38 g.cc-1 en Fr.A. y 2.48 a 2.40 g.cc-1 en Fr.Ar.A.

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Effects of diatomite (DE) application on physical properties of soils subjected to freeze-thaw cycles

Cited by 20 publications

References 36 publications

Evaluation of the impact of freeze–thaw cycles on the soil pore structure of alpine meadows using X‐ray computed tomography

Evaluation of the impact of freeze–thaw cycles on the soil pore structure of alpine meadows using X‐ray computed tomography

Effect of a Freezing-thawing Cycle on Overall and Inter-variability of Runoff and Soil Loss Components for a Loess Soil

Efecto de niveles de diatomita en propiedades físicas de suelos, en laboratorio-Ayacucho. 2019

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