under the action of dry and wet cycles and the calibration results of mesoscopic physical and mechanical properties of sensitive soil layers, the simulation of the sliding of embankment slope of expansive soil in Ningming, Guangxi was carried out, and the simulation results are shown in Fig. 12...
The deeper unsaturated soil includes the soil layers below the root zone and above the saturated zone, where all pore spaces are filled with water. This compartment can encompass both the ‘B’ and the ‘C’ soil horizons. The soil in this layer typically has a lower organic carbon content...
These revealed that a large number of rainy-season rainfall did not recharge the shallow soil layers (0-40 cm) but produced bypass flow. The highest coefficient of variation (CV) of δD (96.79%) was found in precipitation. The CV in δD of soil water decreased with increase in depth ...
content and seasonal dynamics of forest soil water-soluble organic carbon (WSOC) in the hilly region of northwest Zhejiang Province, the secondary forests and Chinese fir plantations were chosen as the test objects to study the WSOC content in 0-10 cm and 10-20 cm soil layers in four ...
LARGE FILTERS ARE USUALLY MADE UP OF SEVERAL LAYERS IN ORDER TO REDUCE THE LOSS OF HEAD DUE TO PERCOLATION THROUGH THE FILTER TO THE SMALLEST VALUE COMPATABLE WITH THE GRAIN-SIZE REQUIREMENTS. SUCH COMPOSITE FILTERS ARE SAID TO BE GRADED. SCOUR OF THE FINER MATERIAL MAY BE CAUSED BY THE ...
The problem considered is that of the consolidation of a soil stratified in horizontal layers, with the simultaneous possibility of overall drainage both vertically to pervious layers above or below the series of strata, and horizontally... MR Horne - 《International Journal of Mechanical Sciences》...
Effects of subsoiling tillage on structure, permeability, and crop yields on compacted Solonetzic and Chernozemic dryland soils in Western Canada Compaction induced by field wheel traffic and dense layers in the subsoil may adversely alter soil structure, impede soil aeration, restrict water infiltra...
As shown in Figure 1a, taking the three-layer soil field as an example, the analysis area is divided into five layers according to the embedded depth: the first layer is the non-embedded section; the second, third, and fourth layers are the embedded section; the 5th layer is the soil ...
soil layers, A-horizon X X surface crusting or cover X X surface ponding X X slope X soil erosion X Soil physical properties soil texture X X X soil structure X X X X X X X soil consistence X X aggregate size distrib. X X X X X aggregate shape X slaking/dispersion X so...
, together with a decline in the density of roots and their energy supply. These findings provide insights into the bioenergetic control of SOC persistence and indicate that an increase in plant rooting depth induced by global change could threaten the storage of millennia-old SOC in deep layers...