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Measurement of the matric potential of soil water in the rhizosphere [PDF]

open access: yesJournal of Experimental Botany, 2013
The availability of soil water, and the ability of plants to extract it, are important variables in plant research. The matric potential has been a useful way to describe water status in a soil-plant system. In soil it is the potential that is derived from the surface tension of water menisci between soil particles.
W R Whalley, W R Whalley
exaly   +3 more sources
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Calibration of Watermark soil moisture sensors for soil matric potential and temperature

Plant and Soil, 1992
Rapid, accurate, and automated measurement of soil matric potential is desirable. Evidence suggested that the Watermark resistance block might be an appropriate and inexpensive tool, so we conducted an evaluation of its relevant characteristics. A number of these blocks were calibrated under laboratory conditions to determine their individual and ...

exaly   +2 more sources

Quantifying Coupling Effects Between Soil Matric Potential and Osmotic Potential

Water Resources Research, 2023
AbstractSoil matric potential and osmotic potential are widely accepted as two independent components of total soil water potential. However, laboratory observations repeatedly demonstrated that matric potential can vary with salt concentration, implying a potential coupling between matric potential and osmotic potential.
Shaojie Hu, Chao Zhang, Ning Lu
openaire   +1 more source

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

open access: yesWater (Switzerland), 2019
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.
Krzysztof Lejcuś   +2 more
exaly   +2 more sources

Changes in the Matric Potential of Soil Water With Time and Temperature

Soil Science, 2010
The temperature dependence of the matric potential of soil water was investigated as part of a study of the effects of climate change on soil physical properties. Undisturbed samples of topsoils were collected in cylinders. The pore water suction near the center of each cylinder was measured using two miniature tensiometers.
Dexter, Anthony   +3 more
openaire   +3 more sources

Effect of Soil Matric Potential on Urea Hydrolysis

Soil Science Society of America Journal, 2014
Soil water availability affects NH 3 loss from surface applied urea, partly due to its influence on urea hydrolysis rates. However, the quantitative effects of soil water on hydrolysis rates are not well understood.
Fernando O. Garcia   +2 more
openaire   +1 more source

Influence of Soil Bulk Density on Matric Potential

Soil Science Society of America Journal, 1962
Abstract Unsaturated soil samples were compressed at three different moisture contents and temperatures to evaluate these interrelations with soil moisture matric potential. It was found that in all cases increasing bulk density, at constant moisture content and temperature, resulted in an increase in soil moisture matric potential ...
James E. Box, S. A. Taylor
openaire   +1 more source

Solute Diffusivity in Undisturbed Soil: Effects of Soil Water Content and Matric Potential

Soil Science Society of America Journal, 2012
Solute diffusivity in soil plays a major role in many important processes with relation to plant growth and environmental issues. Soil solute diffusivity is affected by the volumetric water content as well as the morphological characteristics of water‐filled pores.
Lægdsmand, Mette   +2 more
openaire   +3 more sources

An implicit model for soil thermal conductivity and matric potential

2021
<p>Soil thermal conductivity (λ) is affected by the energy status of water and is closely related to soil matric potential (h). In this study, a soil water retention curve and a soil thermal conductivity curve were linked via the critical point that separated the adsorption water and capillary water regimes. Based on existing
Yili Lu   +3 more
openaire   +1 more source

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