B22B:
Soil Carbon Dynamics: Diving into Our Conceptual and Operational View of Soil Carbon Pools I

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Session ID#: 15335

Session Description:
Terrestrial carbon (C) dynamics and the fate of the soil C reservoir have emerged as a primary source of uncertainty in Earth system models. In order to quantify and predict soil C storage, stability, and susceptibility to disturbance, a process-level understanding of physical, chemical, and biological mechanisms of soil C stabilization needs to be integrated with terrestrial C cycle models. The USGS Powell Center Working Group on Soil C Stabilization seeks contributions aimed at better understanding the distribution of soil C, particularly as it relates to the diverse mechanisms of stabilization. In particular, we encourage submissions targeting: (1) spatial patterns in the distribution of C in various soil fractions; (2) applications of  methods to assess soil C stability; (3) novel modeling techniques to incorporate various soil C fractions; and (4) identification of  knowledge gaps that hinder model-data fusion.
Primary Convener:  Joseph C Blankinship, University of California Santa Barbara, Santa Barbara, CA, United States
Conveners:  Corey R Lawrence, US Geological Survey, Geoscience and Environmental Change Science Center, Denver, United States, Katherine A Heckman, USDA Forest Service, Northern Research Station, Houghton, MI, United States and Susan E Crow, University of Hawaii at Manoa, Honolulu, HI, United States
Chairs:  Joseph C Blankinship, University of California Santa Barbara, Santa Barbara, CA, United States and Corey R Lawrence, US Geological Survey, Geoscience and Environmental Change Science Center, Denver, United States
OSPA Liaison:  Katherine A Heckman, USDA Forest Service, Northern Research Station, Houghton, MI, United States
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

The Soil Carbon Paradigm Shift: Triangulating Theories, Measurements, and Models (143930)
Joseph C Blankinship1, Susan E Crow2, Joshua Schimel1, Carlos A Sierra3, Christina Schaedel4, Alain F Plante5, Aaron Thompson6, Asmeret Asefaw Asefaw Berhe7, Jennifer L Druhan8, Katherine A Heckman9, Marco Keiluweit10, Corey R Lawrence11, Erika Marin-Spiotta12, Craig Rasmussen13, Rota Wagai14 and William R Wieder15, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)University of Hawaii at Manoa, Honolulu, HI, United States, (3)Max Planck Institute for Biogeochemistry, Theoretical Ecosystem Ecology, Jena, Germany, (4)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, (5)University of Pennsylvania, Earth & Environmental Science, Philadelphia, PA, United States, (6)University of Georgia, Crop and Soil Sciences, Athens, GA, United States, (7)University of California Merced, Department of Life and Environmental Sciences, Merced, CA, United States, (8)University of Illinois at Urbana-Champaign, Urbana, United States, (9)USDA Forest Service, Northern Research Station, Houghton, United States, (10)Stanford University, Stanford, CA, United States, (11)US Geological Survey, Geoscience and Environmental Change Science Center, Denver, United States, (12)University of Wisconsin Madison, Madison, WI, United States, (13)University of Arizona, Tucson, United States, (14)NIAES National Institute for Agro-Environmental Sciences, Tsukuba, Japan, (15)National Center for Atmospheric Research, CGD, Boulder, CO, United States
Persistence of Soil Organic Carbon can be Explained as an Emergent Property of Microbial Ecology and Population Dynamics (128705)
Dominic Woolf and Johannes Lehmann, Cornell University, School of Integrative Plant Science, Ithaca, United States
(A)biotic processes control soil carbon dynamics: quantitative assessment of model complexity, stability and response to perturbations for improving ESMs (193662)
Katerina Georgiou, University of California Berkeley, Berkeley, United States, Rose Z Abramoff, Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, United States, John Harte, University of California Berkeley, Berkeley, CA, United States, William J Riley, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Margaret S Torn, Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, CA, United States
Mineralogical Controls on Carbon Cycling in a Floodplain Environment (183836)
Bhavna Arora1, Dipankar Dwivedi1, Carl I Steefel2, Nicolas Spycher3, Patricia M Fox1 and Peter S Nico3, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Beyond clay - using selective extractions to improve predictions of soil carbon content (191413)
Craig Rasmussen1, Asmeret Asefaw Asefaw Berhe2, Joseph C Blankinship3, Susan E Crow4, Jennifer L Druhan5, Katherine A Heckman6, Marco Keiluweit7, Corey R Lawrence8, Erika Marin-Spiotta9, Alain F Plante10, Christina Schaedel11, Joshua Schimel3, Carlos A Sierra12, Aaron Thompson13, Rota Wagai14 and William R Wieder15, (1)University of Arizona, Soil, Water and Environmental Science, Tucson, AZ, United States, (2)University of California Merced, Department of Life and Environmental Sciences, Merced, CA, United States, (3)University of California Santa Barbara, Santa Barbara, CA, United States, (4)University of Hawaii at Manoa, Honolulu, HI, United States, (5)University of Illinois at Urbana-Champaign, Urbana, United States, (6)USDA Forest Service, Northern Research Station, Houghton, United States, (7)University of Massachusetts-Amherst, Amherst, MA, United States, (8)US Geological Survey, Geoscience and Environmental Change Science Center, Denver, United States, (9)University of Wisconsin Madison, Madison, WI, United States, (10)University of Pennsylvania, Earth & Environmental Science, Philadelphia, PA, United States, (11)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, United States, (12)Max Planck Institute for Biogeochemistry, Theoretical Ecosystem Ecology, Jena, Germany, (13)University of Georgia, Crop and Soil Sciences, Athens, GA, United States, (14)NIAES National Institute for Agro-Environmental Sciences, Tsukuba, Japan, (15)National Center for Atmospheric Research, CGD, Boulder, CO, United States
From Turnover-Oriented to Functional Soil Organic Matter Pools: a Lesson Learned from Stable Isotope Tracing (135264)
M Francesca Cotrufo, Colorado State University, Department of Soil and Crop Sciences, Fort Collins, United States
Time-Series Radiocarbon Measurements Indicate Carbon Turnover Across Soil Fractions is Correlated With Productivity in a Long-Term Agricultural Experiment (Invited) (124011)
Jonathan Sanderman1,2, W Troy Baisden3, Courtney Creamer2,4, Mark Farrell5 and Stewart Fallon6, (1)Woods Hole Research Center, Falmouth, MA, United States, (2)CSIRO, Agriculture, Glen Osmond, SA, Australia, (3)GNS Science, National Isotope Centre, Lower Hutt, New Zealand, (4)U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, United States, (5)CSIRO Agriculture and Food, Adelaide, SA, Australia, (6)The Australian National University, Research School of Earth Sciences, Canberra, Australia
Soil genesis as a control on the dynamics of associations between measured soil carbon fractions and modeled soil carbon pools (Invited) (121597)
Sebastian Doetterl, University of Augsburg, Augsburg, Germany

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