B076:
Understanding Soil Aggregate Formation through Chemically Correlative Multimodal Spatial Imaging





Session ID#: 26917

Session Description:
Soil aggregates act as reservoirs of terrestrial carbon.  Because soils contain approximately half of Earth’s terrestrial carbon, it is important to understand the factors that control the cycling of soil organic carbon (SOC) between the land and the atmosphere.  Processes responsible for cycling and transformation may occur inside the aggregates, which, due to their small size, require highly spatially-resolved techniques for their study.  In addition, analysis techniques must be rapid enough to allow a statistically significant number of soil aggregates to be analyzed and, ideally, be able to do so at conditions as close to ambient or in vitro as possible.  We invite presentations that shed light on soil aggregate formation and lifecycle processes by chemically correlative multimodal spatial imaging, including mass spectroscopy analyses and light and electron microscopy imaging, to provide answers of structure and function relationship of aggregates to carbon storage and transformation.
Primary Convener:  Raea K Hicks, University of Colorado, Boulder, CO, United States; Pacific Northwest National Laboratory, EMSL, Richland, WA, United States
Conveners:  Alice Dohnalkova, Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States and M. Lizabeth L Alexander, Pacific Northwest National Laboratory, Richland, WA, United States
Index Terms:

Abstracts Submitted to this Session:

Ken M Kemner1, Sarah O'Brien2, Matthew D. Whiteside3, Deirdre Sholto-Douglas1, Olga Antipova1, Vanessa Bailey4, Maxim Boyanov1, Alice Dohnalkova5, Doga Gursoy1, Libor Kovarik4, Barry Lai1, Christian Roehrig1 and Stefan Vogt1, (1)Argonne National Laboratory, Argonne, IL, United States, (2)University of Illinois at Chicago, Chicago, IL, United States, (3)Vrije Universiteit Amsterdam, Department of Ecological Sciences, Amsterdam, Netherlands, (4)Pacific Northwest National Laboratory, Richland, WA, United States, (5)Environmental Molecular Sciences Laboratory, Richland, WA, United States
Vanessa L Bailey1,2, A. Peyton Smith1, Sarah Fansler3, Tamas Varga1, Ken M Kemner4 and Lee Ann McCue5, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States, (3)Battelle PNNL, Richland, WA, United States, (4)Argonne National Laboratory, Argonne, IL, United States, (5)Pacific Northwest National Lab, Richland, WA, United States
Kirsten S. Hofmockel1, Sheryl Bell2, Malak Tfailly1, Allison Thompson1 and Stephen Callister1, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)Iowa State University, Ames, IA, United States

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