B32E:
Soil Carbon Dynamics: Soil Carbon Change across Scales III

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Session ID#: 15350

Session Description:
Quantifying soil carbon stocks, fluxes, and vulnerability across large scales—both spatial and temporal—is critical to constraining, projecting and predicting the role of soils in the carbon cycle. Working across large scales requires spatially extensive datasets and long-term re-measurements, but the insights gained using such approaches can be quite powerful as a result of their integration over large scales. At the same time, datasets available to soil carbon researchers have never been larger, and networks of long-term research sites are increasingly accessible through data sharing and collaboration. We intend this session as an outlet for large-scale and long-term studies of soil carbon stocks, fluxes and vulnerability, and an opportunity stimulate new contacts and collaboration on complementary projects. Projects that integrate both large scales and long timeframes are of special interest, as are studies that constrain predictions and projections with observational or experimental datasets.
Primary Convener:  Lucas E Nave, University of Michigan Ann Arbor, Ann Arbor, MI, United States
Conveners:  Kate Lajtha, Oregon State University, Corvallis, OR, United States, Nancy Cavallaro, USDA Washington DC, Washington, DC, United States and Jennifer W W Harden, Stanford University, Earth System Science, Stanford, United States
Chairs:  Kate Lajtha, Oregon State University, Corvallis, OR, United States, Lucas E Nave, University of Michigan Ann Arbor, Ann Arbor, MI, United States and Jennifer W W Harden, Stanford University, Earth System Science, Stanford, United States
OSPA Liaison:  Nancy Cavallaro, USDA Washington DC, Washington, DC, United States
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

SOIL MINERALS: AN OVERLOOKED MEDIATOR OF PLANT-MICROBE COMPETITION FOR ORGANIC NITROGEN IN THE RHIZOSPHERE (Invited) (179937)
Stuart Grandy, University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States, Andrea Jilling, University of New Hampshire, Durham, NH, United States and Marco Keiluweit, University of Massachusetts-Amherst, Amherst, MA, United States
Climate Warming Can Increase Soil Carbon Fluxes Without Decreasing Soil Carbon Stocks in Boreal Forests (168022)
Susan E Ziegler1, Ronald H Benner2, Sharon A Billings3, Kate A Edwards4, Michael J Philben5, Xinbiao Zhu4 and Jerome Laganiere6, (1)Memorial University of Newfoundland, Earth Science, St John's, NL, Canada, (2)University of South Carolina Columbia, Marine Sciences, Columbia, SC, United States, (3)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey and Center for Ecological Research, Lawrence, KS, United States, (4)Natural Resources Canada, Atlantic Forestry Centre, Corner Brook, NF, Canada, (5)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (6)Natural Resources Canada - Canadian Forest Service, Québec City, QC, Canada
Shifts in microbial use of carbon sources after 8 years of elevated CO2 and warming simulation in a semiarid grassland: linkages to soil C stocks (196003)
Yolima Carrillo, University of Western Sydney, Hawkesbury Institute for the Environment, Penrith, NSW, Australia, Feike A Dijkstra, University of Sydney, Sydney, Australia and Elise Pendall, Western Sydney University, Hawkesbury Institute for the Environment, Penrith, NSW, Australia
Factors Controlling Soil Carbon and Nitrogen Storage at the Landscape Scale in Puerto Rico and the US Virgin Islands (141724)
Elliot Vaughan1, Erika Marin-Spiotta1, Manuel Matos2, Samuel Ríos2 and Carmen Santiago2, (1)University of Wisconsin Madison, Madison, WI, United States, (2)USDA Natural Resources Conservation Service, Caribbean Office, Puerto Rico, Mayagüez, PR, United States
Soil organic carbon in eastern Australia (138214)
Eleanor Hobley, Technische Universität München, München, Germany, Jeff Baldock, Commonwealth Science and Industrial Research Organisation, Agriculture and Food, Glen Osmond, Australia, Quan Hua, Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, Australia and Brian Wilson, University of New England Australia, Ecosystem Services, Madgwick, Australia
Quantifying environmental controls on stocks, uncertainties, and scaling of soil organic carbon (Invited) (122128)
Umakant Mishra, Argonne National Laboratory, Environmental Science Division, Argonne, United States
Organic matter composition and substrate diversity under elevated CO2 in the Mojave Desert (178380)
Malak M Tfaily, University of Arizona, Environmental Science, Tucson, AZ, United States, Maggie Mae Bowman, Pacific Northwest National Laboratory, Richland, WA, United States, Akihiro Koyama, Algoma University, Department of Biology, Sault Ste. Marie, Canada and Raymond David Evans, Washington State University, School of Biological Sciences, Pullman, WA, United States
Global Impact of Land Use on Soil Carbon Storage (177347)
Jonathan Sanderman, Woods Hole Research Center, Falmouth, MA, United States, Tomislav Hengl, OpenGeoHub Foundation, Wageningen, Netherlands, Greg Fiske, Woodwell Climate Research Center, Falmouth, MA, United States and Emily Cheney, Brown University, Providence, RI, United States

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