431 Symposium--Organic Molecule Interactions with Mineral Surfaces As Key Regulators of Soil Processes: I

Oral Session
SSSA Division: Soil Chemistry
Interactions between mineral surfaces and organic matter partially regulate a number of key processes in soils, including the solubilization of nutrients, the sequestration of carbon, and the fate and transport of contaminants. This symposium seeks to broadly explore the interactions of natural and anthropogenic organic molecules with soil minerals from molecular mechanisms to field scale impacts. Topics of interest include, but are not limited to, weathering and transformations of soil minerals by organic acids and biomolecules, formation and reactivity of organic matter-mineral complexes, sorption and transformation of organic contaminants at surfaces, and biogeochemical cycling of carbon as regulated by mineral surfaces.

Soil Mineralogy

Wednesday, November 5, 2014: 8:00 AM-12:00 PM
Long Beach Convention Center, Room 203C

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Owen Duckworth , Peter Nico , Alan T. Stone and Aaron Thompson
Owen Duckworth , Peter Nico , Alan T. Stone and Aaron Thompson
8:00 AM
Introductory Remarks
8:25 AM
Impact of Dissolved Organic Matter Chemistry on the Fate of Iron(II) in Oxic Environments.
Thomas Borch, Colorado State University; Ellen Daugherty, Colorado State University; Peter Nico, Lawrence Berkeley National Lab; Benjamin Gilbert, Lawrence Berkeley National Laboratory
8:40 AM
Co-Precipitations of Dissolved Organic Carbons with Different Ratios of Fe/Al in an Acidic Solution.
Kai-Yue Chen, National Chung Hsing University; Yu-Min Tzou, National Chung Hsing University
8:55 AM
Evaluating Bacteria Binding Mechanisms to Soil Minerals with FTIR Spectroscopy.
Sanjai J. Parikh, University of California-Davis; Lizette Andrea Aguilera, University of California-Davis; Fungai N.D. Mukome, University of California-Davis; Andrew John Margenot, University of California-Davis
9:15 AM
Attachment of E. coli Strains to Model Environmental Particles in Streams and Stream Sediments.
Xiao Liang, Agricultural and Biosystems Engineering Department, Iowa State University; Chenyu Liao, Chemical and Biological Engineering Department, Iowa State University; Michelle L. Soupir, Iowa State University; Laura Jarboe, Chemical and Biological Engineering Department, Iowa State University; Michael L. Thompson, Iowa State University
9:30 AM
Synergistic Impact of Iron Cation on Dissolved Organic Matter Sorption to Soil Minerals.
JIANJUN YANG, University of Delaware; Donald L Sparks, University of Delaware; Nanthi S. Bolan, University of South Australia; Cornelia Rumpel, CNRS, Institute of Ecology and Environment Paris,CNRS-INRA-AgroParisTech
9:45 AM
10:00 AM
Transient Electrophiles and Nucleophiles in Soils: Sources, Sinks, and Relevance.
Alan T. Stone, Johns Hopkins University; Phillip M. Flanders, U.S. Environmental Protection Agency; Xiaomeng Xia, Johns Hopkins University
10:15 AM
Enigma of Assessing Redox Properties of Humic Substances.
Sudipta Rakshit, Tennessee State University; Garrison Sposito, University of California-Berkeley
10:30 AM
11:20 AM
Relating Soil Carbon Mineralization Rates to Oxygen Availability - Insights from a Model System Approach.
Marco Keiluweit1, Stanford University; Amanda Denney, Stanford University; Peter Nico, Lawrence Berkeley National Lab; Markus Kleber, Oregon State University; Scott Fendorf, Stanford University
11:40 AM
Characterization of Organic Carbon in Soil Aggregates from Temperate Continuous Corn System with Contrasting Management Practices Using Nexafs and 13C-NMR Spectroscopy.
Pavithra Sajeewani Pitumpe Arachchige, Kansas State University; Ganga M. Hettiarachchi, Kansas State University; Leila Maurmann, Instrumentation Facility Manager; Charles W. Rice, Kansas State University; Jay Dynes, Canadian Light Source; Tom Regier, Canadian Light Source
11:55 AM
Concluding Remarks
12:00 PM