Results 1 to 10 of about 1,369 (165)

A brief overview of the causes, impacts and amelioration of soil water repellency - a review

open access: yesSoil and Water Research, 2008
This article describes the phenomenon of soil water repellency, starting from the fundamental principals of water transport and storage in soil. Soil water repellency is a reduction in the rate of wetting and retention of water in soil caused by the ...
Paul D. Hallett
doaj   +3 more sources

Water-entry pressure in water repellent soils: a review [PDF]

open access: yesE3S Web of Conferences, 2020
Water repellent soils can be naturally promoted (e.g. after wildfires) or synthetically induced by mixing with hydrophobic compounds (e.g. polydimethylsiloxane).
Xing Xin, Lourenço Sérgio D.N.
doaj   +1 more source

Cover systems with synthetic water‐repellent soils [PDF]

open access: yesVadose Zone Journal, 2021
Abstract A cover system is a crucial component of engineered landfills, to minimize water percolation into the underlying waste. Capillary barriers are an alternative cover system, which has been widely used in the arid and semiarid regions as no cohesive, low‐permeability materials are used.
Shuang Zheng   +3 more
openaire   +3 more sources

Assessment of Physical Properties of Water-Repellent Soils [PDF]

open access: yesJournal of Geotechnical and Geoenvironmental Engineering, 2021
This note presents a comprehensive characterization of physical and mechanical properties of water repellent (hydrophobic) soil collected from Cleveland National Forest in California immediately after the Holy Fire, 2018, and delineates comparisons with chemically induced hydrophobic sand in the laboratory.
Movasat, Mahta, Tomac, Ingrid
openaire   +2 more sources

Effect of Biomass-Burning Emissions on Soil Water Repellency: A Pilot Laboratory Study

open access: yesFire, 2021
While western U.S. wildfires have increased in intensity and scale, their impacts on soil chemical composition and hydraulic processes have received little attention, despite increasing erosion, surface runoff and flooding.
Vera Samburova   +4 more
doaj   +1 more source

Basic physical and mechanical properties of water repellent sand-clay mixed soil

open access: yesYantu gongcheng xuebao, 2023
The water repellent soil has many excellent properties. At present, its use is mainly aimed at the water repellent sand. In order to expand the application scope of the water repellent soil, a series tests are carried out. The results show that the loose
YANG Song 1, HUANG Yinghao 2
doaj   +1 more source

Modification of Soil Hydroscopic and Chemical Properties Caused by Four Recent California, USA Megafires

open access: yesFire, 2023
While it is well known that wildfires can greatly contribute to soil water repellency by changing soil chemical composition, the mechanisms of these changes are still poorly understood.
Vera Samburova   +12 more
doaj   +1 more source

Identifying the origin of soil water repellency at regional level using multiple soil characteristics: The White Carpathians and Myjavska pahorkatina Upland case study

open access: yesSoil and Water Research, 2015
This paper evaluates the relationship between water repellency and multiple characteristics of topsoil samples belonging to seven Reference Soil Groups, taken from the area of the White Carpathians and the Myjavska pahorkatina Upland.
Lucia KOŘENKOVÁ   +4 more
doaj   +1 more source

Physics of water repellent soils [PDF]

open access: yesJournal of Hydrology, 2000
Abstract Although it is generally well known that water repellent soils have distinct preferential flow patterns, the physics of this phenomenon is not well understood. In this paper, we show that water repellency affects the soil water contact angle and this, in turn, has a distinct effect on the constitutive relationships during imbibing.
Bauters, T.W.J.   +7 more
openaire   +1 more source

Variability of water repellency in sandy forest soils under broadleaves and conifers in north-western Jutland/Denmark

open access: yesSoil and Water Research, 2008
Soil water repellency has important consequences for ecological and hydrological properties of soils and usually retards infiltration capacity and induces preferential flow. This phenomenon has been known to occur on a wide range of sites under a variety
Niels Arne Wahl
doaj   +1 more source

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