Results 271 to 280 of about 82,941 (309)
Some of the next articles are maybe not open access.
Water Retention and Flow in Soils
1973Soil water is subjected to various forces originated by the gravitational pull of the earth, the presence of solutes in the soil water, or the interaction between water contained in the soil’s pores and the walls of these pores. These forces, acting on the soil water or water brought in contact with the soil, cause the water to be adsorbed, retained ...
openaire +1 more source
A water retention model for deformable soils
Géotechnique, 2009The paper presents an experimental study on water retention behaviour of two reconstituted soils, a silty clay (Speswhite kaolin) and a sandy clayey silt (Barcelona silt) and two compacted soils, a silty clay (Speswhite kaolin) and a silty sandy gravel (Adige river embankment).
openaire +3 more sources
Equilibrium, non-equilibrium and residual water: Consequences for soil water retention
Geoderma, 2012Factors that affect water retention in soil are discussed in terms of thermodynamic and hydraulic equilibria. It is assumed that the Groenevelt and Grant (2004) water retention equation describes soil water that is at or close to thermodynamic equilibrium.
Dexter, Anthony R. +2 more
openaire +2 more sources
EFFECTS OF CULTIVATION ON SOIL WATER RETENTION AND WATER USE BY CEREALS IN CLAY SOILS
Journal of Soil Science, 1978Summary The effects are repotted of direct drilling and mouldboard ploughing on soil water retention and extraction in three soils over two to four years. In the years 1972–75 when winter rainfall was close to or greater than the long‐term average the maximum soil water content of the upper 100 cm differed little ...
M. J. GOSS, K. R. HOWSE, W. HARRIS
openaire +1 more source
Effect of soil water retention barriers on turfgrass growth and soil water content
Irrigation Science, 2012In this research, the effects of soil water retention barriers (SWRB) and irrigation levels on soil water content, perennial ryegrass (Lolium perenne c.v Caddieshack) water consumption, fresh clipping yield, visual quality and leaf water content were investigated in 2010 and 2011.
DEMİREL, KÜRŞAD, KAVDIR, YASEMİN
openaire +2 more sources
Effect of Density on the Soil-Water-Retention Behaviour of Compacted Soil
Unsaturated Soils 2006, 2006This paper presents a series of experimental results obtained from wetting and/or drying cyclic tests and constant suction triaxial tests on unsaturated compacted clay with different initial densities using two suction-controllable triaxial apparatus. The primary objective of this research is to investigate the influence of the soil density on the soil-
D. A. Sun, D. C. Sheng, H. B. Cui, J. Li
openaire +1 more source
Comparison of Soil Water Retention Functions for Humid Tropical Soils
Applied Mechanics and Materials, 2014The determination of soil hydraulic properties is of paramount importance as they are needed in many models of water and solute transport in soils, however conventional methods are quite difficult, expensive and sometimes cumbersome to use. Most studies of soil water retention functions are for temperate soils and their soil water retention curve (SWRC)
Nuraddeen Muhammad Babangida +3 more
openaire +1 more source
Water retention and movement in soil.
1999Soil is a porous system made up of solid, liquid, and gaseous phases. The liquid phase (soil solution) consists of soil water, which usually contains a variety of dissolved minerals and organic substances. Water in soil may be encountered in three different states: as a liquid, a solid (ice), or a gas (water vapor).
openaire +1 more source
The influence of soil compaction on water retention of soil on grasslands
Acta Agraria et Silvestria. Series Agraria, 1999This paper presents results of the researches carried out in 1996-1998 in Mydlniki on silty soil. Results showed that multiple passes of tractor wheels changed air and water properties of the soil under grasslands. The useful and productive retention decreases in accordance to number of passes.
Tomasz Głąb, Tomasz Zaleski
openaire
Grouping of soils according to their soil water retention characteristics
2007Soil water retention capacity is usually estimated by pedotransfer functions which, in turn, are very problematic to apply for soil maps containing only categorical-type soil properties. Most of the soil information in Hungary is available in the format of soil maps reporting categorical-type information and often lacking data about measured ...
B. Tóth +4 more
openaire +2 more sources