Results 41 to 50 of about 50,033 (351)

The Effects of Inorganic Fertilization on Soil Shrinkage in Wetting-drying Cycles

open access: yesGuan'gai paishui xuebao, 2021
【Objective】 Swelling and shrinkage are important process reshaping soil structure. It is impacted by many factors, and the objective of this paper is to investigate how fertilization impacts this process.
LIU Chang, QI Wei, WANG Ce, ZHANG Zhanyu
doaj   +1 more source

Energy evolution and failure characteristics of single fissure carbonaceous shale under drying−wetting cycles

open access: yesRock and Soil Mechanics, 2022
In order to investigate the energy evolution and failure characteristics of carbonaceous shale containing single fissure under drying−wetting cycles, the intact carbonaceous shale samples and the carbonaceous shale samples with fissure angles of 30°, 45°
LIU Xin-xi   +5 more
doaj   +1 more source

Crystallization of hydrated and anhydrous salts in porous limestone resolved by synchrotron X-ray microtomography [PDF]

open access: yes, 2014
ACLInternational audienceThe crystallization processes of two anhydrous salts (NaCl and Na 2SO4) and one hydrated (sodium sulfate) salt in the pore space of a natural building stone, Savonnières limestone, are studied.
Boone, Matthieu   +5 more
core   +3 more sources

Amplitude and frequency of wetting and drying cycles drive N2 and N2O emissions from a subtropical pasture

open access: yesBiology and Fertility of Soils, 2022
This study investigated the effects of irrigation frequency on N2 and N2O emissions from an intensively managed pasture in the subtropics. Irrigation volumes were estimated to replace evapotranspiration and were applied either once (low frequency) or ...
J. Friedl   +7 more
semanticscholar   +1 more source

Damage in porous media due to salt crystallization [PDF]

open access: yes, 2010
We investigate the origins of salt damage in sandstones for the two most common salts: sodium chloride and sulfate. The results show that the observed difference in damage between the two salts is directly related to the kinetics of crystallization and ...
A. Nicolaescu   +9 more
core   +5 more sources

Effect of wetting-drying cycles on soil desiccation cracking behaviour

open access: yesE3S Web of Conferences, 2016
Better understanding the desiccation cracking process is essential in analysing drought effects on soil hydraulic and mechanical properties through consideration of the atmosphere-ground interaction.
Tang Chao-Sheng   +4 more
doaj   +1 more source

Interpreting Measurements of Small Strain Elastic Shear Modulus under Unsaturated Conditions [PDF]

open access: yes, 2016
Bender element testing of unsaturated isotropically compacted speswhite kaolin samples was used to investigate the variation of small strain elastic shear modulus G under unsaturated conditions. Testing was performed in a suction-controlled triaxial cell
Hasan, Ahmed Mohammed, Wheeler, Simon
core   +2 more sources

Giant osmotic pressure in the forced wetting of hydrophobic nanopores [PDF]

open access: yes, 2015
The forced intrusion of water in hydrophobic nanoporous pulverulent material is of interest for quick storage of energy. With nanometric pores the energy storage capacity is controlled by interfacial phenomena.
Charlaix, Elisabeth   +3 more
core   +3 more sources

Drying-Wetting Cycles: Effect on Deep Soil Carbon [PDF]

open access: yesSoil Systems, 2018
In the Southeast United States (U.S.), the climate is predicted to be warmer and have more severe drought in the summer. Decreasing rainfall in summer months should create more severe soil drying, which will eventually affect re-wetting cycles deeper in the soil profile.
Ji Qi   +5 more
openaire   +1 more source

Effect of Wetting-Drying Cycles on Mechanical Behaviour and Electrical Resistivity of Unsaturated Subgrade Soil

open access: yesAdvances in Civil Engineering, 2019
Compacted soil is widely used in road and railway subgrade, while alternation of seasons can cause fluctuations in moisture content of soil (i.e., wetting-drying cycles) and influence the performance of soil.
Zhi Hu   +6 more
doaj   +1 more source

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