Results 1 to 10 of about 9,172 (209)

Rhizosphere-Scale Quantification of Hydraulic and Mechanical Properties of Soil Impacted by Root and Seed Exudates [PDF]

open access: yesVadose Zone Journal, 2018
Using rhizosphere-scale physical measurements, we tested the hypothesis that plant exudates gel together soil particles and, on drying, enhance soil water repellency. Barley ( L. cv. Optic) and maize ( L. cv. Freya) root exudates were compared with chia (
M. Naveed   +9 more
doaj   +8 more sources

Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils [PDF]

open access: yesJournal of Hydrology and Hydromechanics, 2017
Assessment of soil water repellency (SWR) was conducted in the decomposed organic floor layer (duff) and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time ...
Alagna Vincenzo   +4 more
doaj   +3 more sources

Water vapour adsorption on water repellent sandy soils [PDF]

open access: yesJournal of Hydrology and Hydromechanics, 2017
Soil sorptivity is considered a key parameter describing early stages of water (rain) infiltration into a relatively dry soil and it is related to build-up complexity of the capillary system and soil wettability (contact angles of soil pore walls ...
Orfanus Tomas   +4 more
doaj   +2 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

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

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

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   +1 more source

Water-repellent soil and its relationship to granularity, surface roughness and hydrophobicity: a materials science view [PDF]

open access: yes, 2005
Considerable soil water repellency has been observed at a wide range of locations worldwide. The soil exhibiting water repellency is found within the upper part of the soil profile.
McHale, Glen   +2 more
core   +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

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