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Modelling soil-water dynamics in the rootzone of structured and water-repellent soils
Computers & Geosciences, 2018Abstract In modelling the hydrology of Earth's critical zone, there are two major challenges. The first is to understand and model the processes of infiltration, runoff, redistribution and root-water uptake in structured soils that exhibit preferential flows through macropore networks.
Hamish E. Brown +7 more
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USEFUL SOIL-WATER REPELLENCY INDICES
Soil Science, 2008Water repellency (WR) has been classically characterized at fixed (usually oven-dry) soil water content (θ g ) in terms of the soil water contact angle (CA), a. However, a has been previously reported to depend upon θ g in a nonlinear fashion, such that WR increases from a wettable state close to saturation (θ g-min ) up to a maximum, α max ...
Regalado, C M +5 more
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Modeling infiltration into water repellent soil
2023Infiltration is an important hydrological process impacting ecology, forestry, agronomy, civil- and environmental engineering. Most infiltration models assume soils to be “wettable”, i.e., water in the soil forming an effective contact angle with the soil matrix that is close to zero.
Markus Berli, Rose Shillito
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Microplastic enhances water repellency of soils
2020<p>Soils are the largest sink of microplastic particles (MPP) in terrestrial ecosystems. However, there is little knowledge on the implication of MPP contaminating soils. In particular, we don&#8217;t know how MPP move and, on the other hand, how they affect soil hydraulic properties and soil moisture dynamics.</p ...
Andreas Cramer +4 more
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Manure-Induced Soil-Water Repellency
Soil Science, 2011AbstractThis laboratory study was conducted to evaluate the potential of nine manure samples from dairy (n = 7), beef (n = 1), and swine (n = 1) to cause water repellency (WR) in six soils; in addition, the duration of WR in two soils was assessed in an incubation study.
Paulo H. Pagliari +4 more
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Water Repellent Soils: Their Implications in Forestry
Journal of Forestry, 1973Abstract Water-repellent soils can influence the success of forestry practices. Usually the result of fire, water repellency may also arise from development of humus and its related microorganisms. It may promote excessive run-off and erosion in a burned area and affect relations between soil water and plants.
L. F. DeBano, R. M. Rice
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Infiltration in water repellent soil
2010Observations made at Goat Meadows - a small sub-alpine basin located near Pemberton, British Columbia -demonstrated that a layer which is either water repellent or has only a limited affinity for water is present at most vegetated sites. The layer is typically a few centimetres in thickness, and is usually located at or near the top of the profile: it ...
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Post‐fire Soil Water Repellency
Soil Science Society of America Journal, 2004Fire‐induced soil water repellency is a key control on post‐fire runoff and erosion rates, but there are few data on the persistence of soil water repellency and the soil moisture threshold at which water repellent soils become hydrophilic. This study used repeated sampling to quantify changes in soil water repellency over time and
Lee H. MacDonald, Edward L. Huffman
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