Expansive soils in the field are typically exposed to cyclic wetting and drying due climatic fluctuations subjected a variety of stress conditions nature or when used as compacted layers for construction hydraulic barriers waste disposal facilities. The hysteric behavior soil-water characteristic curve (SWCC) is key parameter understanding, modeling, interpreting unsaturated these under such co...

Evidence for stomatal uptake of solutes by leaves without the application of surfactants or pressure has recently been provided (Eichert et al., 1998). In the present study, experimental conditions were refined in that the water potential was held at <0 on the physiologically inner side of the epidermal strips (ES) by use of a ceramic plate or the proper mesophyll of the plant. The penetrated s...

Global warming is expected to increase the frequency and intensity of droughts in the twenty-first century, but the relative contributions from changes in moisture supply (precipitation) versus evaporative demand (potential evapotranspiration; PET) have not been comprehensively assessed. Using output from a suite of general circulation model (GCM) simulations from phase 5 of the Coupled Model I...

greenhouse gases emissions have increased during the last century due to human activities such as agricultural practices, fossil fuel burning and industrial practices. the formation of greenhouse gases, in particular n2o or co2 is strongly controlled by both soil temperature and soil humidity. laboratory experiment was conducted to assess the response of grassland and arable soils with regard t...

Due to high swelling-shrinkage caused by climate change, expansive soil is a significant problem in light construction, road embankments, and slope stability (wet dry). The physical mechanical properties of the are affected repeated drying wetting cycles, particularly changes volume, negative pore water pressure (suction), compressive strength. Fly ash used increase strength reduce plasticity s...

In this paper, to investigate the impact of environmental loadings on short-term and creep mechanical characteristics different types clayey soil-Geocomposite Drainage Layers (GDL) interfaces, a series rapid loading shear tests were conducted Mercia Mudstone Clay-GDL interfaces Kaolin subjected drying-wetting cycles, thermal cycles elevated temperature, etc, using bespoke temperature stress-con...