8:30 AM Compton, Jana^*,1, Church, M.¹, Asano, Yuko², Cabrera-Frias, Janice¹, Shipley, Emily ¹, ¹ US EPA Western Ecology Division, Corvallis, OR, USA² Kyoto University, Kyoto, Japan Marine aerosols alter soil processes in coastal forests.

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8:50 AM Jin, Virginia^{*,1, 2}, Romanek, Christopher^{1, 3}, Sharitz, Rebecca^{1, 2}, ¹ Savannah River Ecology Laboratory, Aiken, SC, USA² Department of Plant Biology, Athens, GA, USA³ Geology Department, Athens, GA, USA Soil availability and plant uptake of soluble mineral and organic nitrogen in temperate floodplain and sandhills soils.

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9:10 AM Jenerette, Darrel^*,1, Wu, Jianguo¹, ¹ School of Life Sciences, Tempe, AZ, USA Multiple-scale patterns of soil organic matter and nitrogen in an urbanized desert.

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9:30 AM SULZMAN, ELIZABETH^*,1, BRANT, J¹, CROW, S¹, RUGH, W¹, LAJTHA, K¹, ¹ Oregon State University, Corvallis, OR, USA Soil CO₂ efflux from forest soils: Isotopic composition and the role of roots.

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9:50 AM von Fischer, Joseph^*,1, Thelwell, Roger¹, ¹ Colorado State University, Ft. Collins, CO, USA Theoretical advances in trace gas isotope pool dilution: Improved quantification of anoxic microsites in oxic soils.

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10:10 AM Break.

10:20 AM Stamenkovic, Jelena^*,1, Obrist, Daniel¹, Arnone, John ², Schorran, David², Verburg, Paul², Johnson, Dale¹, Gustin, Mae¹, ¹ University of Nevada-Reno, Reno, Nevada² Desert Research Institute, Reno, Nevada Mercury emissions from tallgrass prairie ecosystems.

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10:40 AM Sartori, Fabio^*,1, Markewitz, Daniel¹, ¹ D.B. Warnell School of Forest Resources, The University of Georgia, Athens, GA Modeling growth in simplified loblolly pine (Pinus taeda L.) ecosystems based on N availability indexes.

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11:00 AM MacKenzie, M. Derek^*,1, DeLuca, Thomas ¹, Gundale, Michael¹, Kurth, Valerie¹, Brimmer, Rachel¹, ¹ College of Forestry and Conservation, Missoula, Montana, USA Biotic function of charcoal in pine ecosystems of the inland Northwest.

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11:20 AM Holub, Scott^*,1, Silva, R.², ¹ US Enivronmental Protection Agency, Ada, OK² Oak Ridge Institute for Science and Education, Oak Ridge, TN Carbon quality and quantity affect the retention and microbial processing of applied nitrogen.

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