261 Coupled Soil Mechanical and Hydraulic Processes In Structured Soils

Oral Session
S01 Soil Physics This symposium aims to further understanding of processes in structured soils through research that quantifies soil structure, preferential flow of mass through soil structure, and the formation and degradation of soil structure. One process that can alter soil structure and function is soil compaction, which causes aggregate and/or particle rearrangement, alters pore continuity, and changes accessibility and tensorial functions of corresponding soil properties. Another process of interest includes expansive soils where wetting and drying cycles cause changes in macro and micro pore structure and function, unsaturated hydraulic conductivity, and stability.


Soil & Water Management & Conservation
Tuesday, October 23, 2012: 7:55 AM-11:10 AM
Duke Energy Convention Center, Room 236, Level 2

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Rainer Horn , Cristine Morgan and Colin Campbell
Rainer Horn , Colin Campbell and Cristine Morgan
8:00 AM
Mechanical Deformation and Pore Functioning of Tropical No-till Soils.
José Miguel Reichert, Federal University of Santa Maria; André Brandt, UDESC; Rainer Horn, University of Kiel
8:20 AM
The Velocity of Shear Waves In Unsaturated Soil.
William Whalley, Rothamsted; Keith Attenborough, The Open University; Dick Jenkins, Delta-T Devices
8:55 AM
Factors Affecting Soil Cohesion.
Flavia P. Souza, Federal University of Lavras; Sayjro K. Nouwakpo, Purdue University; Chi-Hua Huang, NSERL-USDA
9:10 AM
9:25 AM
9:55 AM
Modeling Surface Hydrology Using NRCS Descriptors of Soil Structure.
Cristine Morgan, Texas A&M University; Dianna Fisher, Texas A&M University; Kevin McInnes, Texas A&M University; Christine Molling, University of Wisconsin-Madison
10:10 AM
Toward Estimating Soil Crack Volume.
Haly Neely, Texas A&M University; Cristine Morgan, Texas A&M University; Kevin McInnes, Texas A&M University
10:25 AM
Hydraulic Properties of Unsaturated Soil: The Effect of Microbial Activity.
Ravid Rosenzweig, Technion – Israel Institute of Technology; Uri Shavit, Technion - Israel Institute of Technology; Alex Furman, Technion Institute of Technology
10:40 AM
Determination of Hydraulic Properties in Water Repellent Soils.
Henry W. Chau, University of Saskatchewan; Asim Biswas, CSIRO; Vladimir Vujanovic, University of Saskatchewan; Bing Cheng Si, University of Saskatchewan
10:55 AM
The Saturation Dependence of Dispersion From Percolation Theory.
Behzad Ghanbarian-Alavijeh, Wright State University; Thomas E. Skinner, Wright State University; Allen G. Hunt, Wright State University; Robert Ewing, Iowa State University
11:10 AM
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