Full-Scale Hydro-Mechanical Properties of Vertical Flow Bed Treatment Soils

Ishimwe, Elvis; Garner, Cyrus D.; Coffman, Richard A.

doi:10.1007/s10706-018-0495-x

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…The sensors were in the effective root zone at locations that provided a representative picture of the soil water status in the depths of 0.2, 0.4, and 0.6 m. During the nut setting, surface irrigation was applied by micro sprinklers placed at a height of 0.3 m above the soil surface. Additionally, Irrometer™ tensiometers were used to measure the potential of soil water and its changes in the soil profile [26][27][28]. Values were measured in kilopascals [kPa].…”

Section: Field Measurements 231 Soil Moisturementioning

confidence: 99%

Water Regime Monitoring of the Royal Walnut (Juglans regia L.) Using Sap Flow and Dendrometric Measurements

Bárek

Kovacova

Kišš

et al. 2021

Plants

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Changes in the distribution of annual rainfall totals, together with the increase in temperature over the last 40 years, are causing more frequent periods of drought, and plants are more often exposed to water stress. The aim of this study was to monitor the effect of different water regimes (irrigated and non-irrigated) of individuals of walnut tree (Juglans regia L.) in a private orchard located in the West of Slovakia. Our research was focused on dendrometric and sap flow measurements in the period from 28 March to 2 June 2019. The results showed differences in the sap flow of walnut trees during the budbreak period: when trees were irrigated, sap flow in the diurnal cycle was around 130 g·h−1 (20.48%), higher than in the non-irrigated treatment. Dendrometric differences between the irrigated and non-irrigated treatments were not significant. The sap flow data in the flowering period of the irrigated variant were slightly higher at 150 g·h−1 (35.62%) than non-irrigated. Dendrometric differences were more significant when the difference between the variants was more than 1.5 mm. Continuation of this research and analysis of the data obtained in the coming years will allow us to evaluate the effects of the environment on fruit trees in the long term.

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Section: Field Measurements 231 Soil Moisturementioning

confidence: 99%

Water Regime Monitoring of the Royal Walnut (Juglans regia L.) Using Sap Flow and Dendrometric Measurements

Bárek

Kovacova

Kišš

et al. 2021

Plants

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“…The top two tensiometers were secured from the heat of the heating lamps. Irrometer ™ tensiometers are widely used for soil matric potential measurement [82][83][84][85]. Regarding the soil moisture content, it was measured with the use of TDR devices manufactured by E-Test™ Company.…”

Section: Test Stand and Measuring Equipmentmentioning

confidence: 99%

The Influence of a Water Absorbing Geocomposite on Soil Water Retention and Soil Matric Potential

Śpitalniak

Lejcuś

Dąbrowska

et al. 2019

Water

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Climate change induces droughts that are becoming more intensive and more frequent than ever before. Most of the available forecast tools predict a further significant increase in the risk of drought, which indicates the need to prepare solutions to mitigate its effects. Growing water scarcity is now one of the world’s leading challenges. In agriculture and environmental engineering, in order to increase soil water retention, soil additives are used. In this study, the influence of a newly developed water absorbing geocomposite (WAG) on soil water retention and soil matric potential was analyzed. WAG is a special element made from geotextile which is wrapped around a synthetic skeleton with a superabsorbent polymer placed inside. To describe WAG’s influence on soil water retention and soil matric potential, coarse sand, loamy sand, and sandy loam soils were used. WAG in the form of a mat was used in the study as a treatment. Three kinds of samples were prepared for every soil type. Control samples and samples with WAG treatment placed at depths of 10 cm and 20 cm were examined in a test container of 105 × 70 × 50 cm dimensions. The samples had been watered and drained, and afterwards, the soil surface was heated by lamps of 1100 W total power constantly for 72 h. Soil matric potential was measured by Irrometer field tensiometers at three depths. Soil moisture content was recorded at six depths: of 5, 9, 15, 19, 25, and 30 cm under the top of the soil surface with time-domain reflectometry (TDR) measurement devices. The values of soil moisture content and soil matric potential were collected in one-minute steps, and analyzed in 24-h-long time steps: 24, 48, and 72 h. The samples with the WAG treatment lost more water than the control samples. Similarly, lower soil matric potential was noted in the samples with the WAG than in the control samples. However, after taking into account the water retained in the WAG, it appeared that the samples with the WAG had more water easily available for plants than the control samples. It was found that the mechanism of a capillary barrier affected higher water loss from soil layers above those where the WAG had been placed. The obtained results of water loss depend on the soil type used in the profile.

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Full-Scale Hydro-Mechanical Properties of Vertical Flow Bed Treatment Soils

Cited by 2 publications

References 14 publications

Water Regime Monitoring of the Royal Walnut (Juglans regia L.) Using Sap Flow and Dendrometric Measurements

Water Regime Monitoring of the Royal Walnut (Juglans regia L.) Using Sap Flow and Dendrometric Measurements

The Influence of a Water Absorbing Geocomposite on Soil Water Retention and Soil Matric Potential

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