8:00 AM Verburg, Paul^*,1, Arnone, Jay¹, Schorran, David¹, ¹ Desert Research Institute, Reno, NV NSF-IRCEB interannual climate variability and ecosystem processes in tallgrass praire: Soil respiration.

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8:15 AM Dornbush, Mathew^*,1, Raich, James¹, ¹ Iowa State University, Ames, IA Evaluating the influence of aboveground production on grassland soil respiration in Central Iowa, U.S.A.

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8:30 AM Tang, Jianwu^*,1, Qi, Ye¹, Goldstein, Allen¹, ¹ University of California at Berkeley, Berkeley, CA Separating root respiration from soil respiration in a ponderosa pine plantation in the Sierra Nevada.

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8:45 AM Pendall, Elise^*,1, King, Jennifer², Mosier, Arvin³, ¹ University of Wyoming, Laramie, WY² University of Minnesota, St. Paul, MN³ USDA-ARS, Fort Collins, CO Dynamics of soil organic matter turnover under elevated CO₂.

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9:00 AM Fraterrigo, Jennifer^*,1, Turner, Monica¹, Pearson, Scott², Dixon, Philip³, ¹ University of Wisconsin-Madison, Madison, WI² Mars Hill College, Mars Hill, NC³ Iowa State University, Ames, IA Impacts of past land use on spatial heterogeneity of soil nutrients in Southern Appalachian forests.

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9:15 AM Carney, Karen^*,1, Bohannan, Brendan¹, Matson, Pamela¹, ¹ Stanford University, Stanford, CA, USA The influence of plant diversity and land-use on the diversity and function of soil nitrifiers.

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9:30 AM Yang, Louie^*,1, ¹ University of California, Davis, Davis, CA 17-year periodical cicadas as a resource pulse: Effects on soil nitrogen availability.

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9:45 AM break.

10:00 AM Zhu, Weixing^*,1, Zhang, Tao¹, ¹ Binghamton University, Binghamton, New York, USA Nitrogen retention and hydrological loss in intact soil cores during a 24-week lab incubation.

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10:15 AM DeForest, Jared^*,1, Zak, Donald¹, Pregitzer, Kurt², ¹ University of Michigan, Ann Arbor, MI² Michigan Technological University, Houghton, MI Chronic NO₃^- deposition and lignin degradation in northern hardwood forests.

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10:30 AM Moorhead, Daryl, Sinsabaugh, Robert, Modeling impacts of N- and polyphenolic inhibition on litter decay.

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10:45 AM Ogle, Stephen^*,1, Ojima, Dennis¹, Clausnitzer, Dave², Sanford, Robert³, ¹ Colorado State University, Fort Collins, CO² USGS, Forest & Rangeland Ecosystem Science Center, Corvallis, OR³ University of Denver, Denver, CO Livestock impacts on soil organic carbon storage in Great Basin ecosystems.

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11:00 AM Tripathi, Ghanshyam^*,1, Ram, Setha¹, Sharma, Brij Mohan¹, ¹ Department of Zoology JNV University, Jodhpur, Rajasthan, India Impact of drought on faunal biodiversity and functional aspects of soil in arid environment.

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