95 Soil Change: Characterization and Modeling Across Scales: II

Soil processes resulting in ‘soil change’ at anthropogenic time scales occur over a range of spatial and temporal scales. Assessing soil change requires appropriate measurements and model development at scales that support policy development and decision making. This session solicits presentations addressing characterization or modeling of soil change across scales, where change may result from management practice, altered land-use or human-induced climate change. Of particular interest is how best to determine dynamic soil properties, such as soil-water, -carbon, -nitrogen, -salinity, -microbial dynamics and -biodiversity. Presentations may include measurement or modeling approaches, combinations of models or fundamental contributions on scaling laws.

S01 Soil Physics
Monday, November 1, 2010: 2:30 PM-4:30 PM
Long Beach Convention Center, Exhibit Hall BC, Lower Level
Organizers:
Scott Jones , Ted Zobeck , Cristine Morgan and Markus Tuller
Presiding:
Markus Tuller
903
Micro-Scale Variability of Soil Porosity as Described by CT Scanning, and Relationship with Soil Gas Diffusion.
Jonathan Lafond, Laval University; Liwen Han, Department of Plant Science, McGill University; Suzanne Allaire, Laval University; Pierre Dutilleul, Department of Plant Science, McGill University
904
Visualizing Static Soil Physical Properties and Dynamic Soil Moisture In Multiple Dimensions.
Mark Connolly, Dept. of Soil Science/North Carolina State University; Jeffrey White, Dept. of Soil Science/North Carolina State University; Joshua L. Heitman, Dept. of Soil Science/North Carolina State University; Helena Mitasova, Dept. of Marine, Earth, & Atmospheric Sciences/North Carolina State University
905
Hydrophobic Soils: Exploring the Mechanism for Reversible Hydrophobicity.
Priscilla Woolverton, Oregon State University; Maria Ines Dragila, Oregon State University; Markus Kleber, Oregon State University
906
Physicochemical Controls on Initiation and Evolution of Desiccation Cracks In Sand-Bentonite Mixtures: X-Ray Imaging and Stochastic Modeling.
Thomas Gebrenegus, University of California-Merced; Teamrat Ghezzehei, University of California-Merced; Markus Tuller, University of Arizona
907
Comparison of Sampling Strategies for Characterizing Spatial Variability with ECa-Directed Soil Sampling.
Dennis Corwin, USDA-ARS, U.S. Salinity Laboratory; Scott M. Lesch, Riverside Public Utilities - Resource Division; Eran Segal, Gilat Research Center; Todd Skaggs, USDA-ARS, U.S. Salinity Laboratory; Scott Bradford, USDA-ARS, U.S. Salinity Laboratory
908
Non-Fickian Mechanism of Contaminant Transport in Unsaturated Heterogeneous Soils.
Yong Zhang, Desert Research Institute; Jianting Zhu, Desert Research Institute; Dongmin Sun, University of Houston, Clear Lake
909
Poster Title: The Contribution of Spectroscopic Measurements in Characterizing Variability in SOC and Scalability to Temporal Monitoring Regimes.
Elaine N. Viglione, The Rodale Institute; Douglas Archibald, Pennsylvania State University; Alison Grantham, Rodale Institute
910
Spatial Variation in Potential Greenhouse Gas Mitigation Across California.
Juhwan Lee, University of California-Davis; Steven De Gryze, Terra Global Capital; Johan Six, Department of Plant Sciences, University of California
911
Role of Wetting and Drying in Soil Aggregate Formation.
Ammar Albalasmeh, University of California, Merced; Teamrat Ghezzehei, University of California, Merced
912
Identifying Thresholds for Water Storage and Transmission In Montane Watersheds From the Soil up.
Robert Heinse, College of Agricultural and Life Sciences, University of Idaho; Scott Jones, Utah State University