122Redoximorphic Processes Across Scales: III

Poster Session

S02 Soil Chemistry

Oxidation-reduction (redox) reactions are encountered in a variety of environments such as soils, sediments, and surface waters. Electron transfer involves the bringing together or coupling of two- half reactions and is important in controlling contaminant speciation, cycling of naturally occurring soil elements (carbon, nitrogen, iron, manganese, and sulphur), and mineral weathering. Redox reactions are catalyzed by microorganisms and can be mediated by abiotic processes. The purpose of this joint symposium is to bring together scientists in the Wetlands, Soil Chemistry, and Soil Mineralogy divisions to explore redox processes over a range of spatial scales, from the molecular level all the way to the field scale in order to identify gaps in our understanding of coupled processes and electron flow.

Cosponsor(s):

S10 Wetland Soils, S09 Soil Mineralogy
Monday, October 22, 2012: 4:00 PM-6:00 PM
Duke Energy Convention Center, Exhibit Hall AB, Level 1
1020
The Uptake and Accumulation of Arsenic by Paddy Rice As Affected by Iron Plaque and Variation of Genotypes.
Chien-Hui Syu, National Taiwan University; Dar-Yuan Lee, National Taiwan University
1021
Simulating and Predicting Arsenic Mineralogy Controlling Arsenic Solubilization Into Groundwater in Semi-Arid Environments.
Allia M. Abu-Ramaileh, Utah State University; Joan McLean, Utah State University
1022
Redox-Related Behavior of Zinc in Noncalcareous Paddy Soils.
Michelle Anne Bunquin, International Rice Research Institute (IRRI); Oliver Castillo, International Rice Research Institute (IRRI); Susan Tandy, ETHZ - Swiss Federal Institute of Technology; Rainer Schulin, ETHZ - Swiss Federal Institute of Technology; Sarah Johnson Beebout, International Rice Research Institute (IRRI)
1023
Visualization of Oxygenation Dynamics in the Rice Rhizosphere Under Elevated CO2 and Temperature.
Rebecca Neumann, University of Washington; Jennifer Levye, University of Washington; Morten Larsen, University of Southern Denmark; Ronnie N. Glud, University of Southern Denmark
1024
Microscale Cadmium Speciation in Submerged Paddy Soil.
Noriko Yamaguchi, National Institute for Agro-Environmental Sciences NIAES; Yohey Hashimoto, Mie University; Toshiaki Okura, National Institute for Agro-Environmental Sciences NIAES; Yasuko Terada, Japan Synchrotron Radiation Research Institute
1025
Iron Speciation At Rice Root/Soil Interface.
Shan-Li Wang, National Chung Hsing University; Ya Ting Chan, National Chung Hsing University; Ya-Yi Yan, National Chung Hsing University; Chuan Fu Kao, National Chung Hsing University
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