B035
Controls, dynamics, and responses of deep soil carbon to land use and climate change

Session ID#: 76241

Session Description:
Soil carbon (C) is a source of large uncertainty in both C cycling and global climate models owing to challenges in upscaling often highly spatially and temporally heterogeneous soil C. In particular, deep soil carbon is an important component regulating the process and functioning of the critical zone between bedrock and the aboveground ecosystems. However, controls on C stabilization and destabilization remain poorly understood and understudied. A growing number of studies are beginning to quantify deep (>0.5 m) soil C storage and its dynamic change, associated biological activity and microbial communities, and sensitivities to climate and land use change. We solicit contributions that explore the dynamics and controls on deep soil carbon and are especially interested in abstracts contributing to understanding (1) the dynamics of deep soil carbon, (2) responses to land use and climate change, and (3) microbial, mineralogical and landscape controls on deep soil carbon storage and distribution.
Co-Organized:
  • EP - Earth and Planetary Surface Processes
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0486 Soils/pedology [BIOGEOSCIENCES]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1626 Global climate models [GLOBAL CHANGE]

Primary Convener:  Kathleen A Lohse, Idaho State University, Biological Sciences, Idaho Falls, ID, United States
Conveners:  Jianwu Tang, The Ecosystems Center, MBL, Woods Hole, MA, United States, Ashlee Laura Denton Dere, Penn State University, University Park, PA, United States and Steve A. Banwart, University of Leeds, Leeds, United Kingdom
Primary Liaison:  Kathleen A Lohse, Idaho State University, Biological Sciences, Idaho Falls, ID, United States
 
Subsoil organic carbon response to land use in mountain soils (501541)
Stephanie Grand1, Magalì Matteodo1, Anaïs Fayolle1, Valentine Turberg1, David Sebag2, Pascal Vittoz1 and Eric P Verrecchia1, (1)University of Lausanne, Faculty of Geosciences and Environment, Lausanne, Switzerland, (2)University of Normandie, UNIROUEN, UNICAEN, CNRS, M2C, Rouen, France
 
Soil carbon cycling changes at depth due to woody encroachment of tallgrass prairie (509735)
Lydia H. Zeglin1, Hannah I Dea1, Rachel Keen1, Emmett Greg Tooley2 and Jesse B Nippert1, (1)Kansas State University, Division of Biology, Manhattan, KS, United States, (2)Kansas State University, Division of Biology, Manhattan, United States
 
Anthropogenic Declines in Deep Roots Constrain Deep Soil Organic Carbon Forms and Fluxes (510143)
Sharon A Billings1, Pamela L Sullivan2, Ligia Souza3, Emma Hauser4, Terry Loecke5, Kyler Lang3, Charles W Rice6, Daniel Hirmas5, Daniel deB. Richter Jr7, Alexander Cherkinsky8 and Daniel Markewitz8, (1)University of Kansas, Department of Ecology and Evolutionary Biology and Kansas Biological Survey, Lawrence, KS, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Science, Corvallis, OR, United States, (3)University of Kansas, Lawrence, United States, (4)University of Kansas, Ecology and Evolutionary Biology, Lawrence, KS, United States, (5)University of Kansas, Lawrence, KS, United States, (6)Kansas State University, Agronomy, Manhattan, KS, United States, (7)Duke University, Nicholas School of the Environment, Durham, NC, United States, (8)University of Georgia, Athens, GA, United States
 
Spatial Distribution and Prediction of Hillslope Soil Organic Carbon (Invited) (510783)
Nicholas Ross Patton, University of Queensland, St Lucia, QLD, Australia, Kathleen A Lohse, University of Arizona, Tucson, AZ, United States, Mark S Seyfried, USDA-ARS, Northwest Watershed Research Center, Boise, ID, United States, Sarah Godsey, Idaho State University, Geosciences, Pocatello, ID, United States and Susan Parsons, Orono, ME, United States
 
Microbial carbon use efficiency and temperature sensitivity vary with soil depth and along a wetland to upland gradient: the role of clay content (526004)
Jinquan Li1, Junmin Pei2, Feike A Dijkstra3, Ming Nie2 and Elise Pendall4, (1)Western Sydney University, Hawkesbury Institute for the Environment, Penrith, NSW, Australia, (2)Fudan University, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Shanghai, China, (3)The University of Sydney, Eveleigh, NSW, Australia, (4)Western Sydney University, Penrith 2751, NSW, Australia
 
Six years of warming the whole soil profile: Response of stocks and fluxes over time (544802)
Jennifer Soong1, Caitlin Hicks Pries2, Cristina Castanha3, Rachel C Porras3, Eoin Brodie4, Peter S Nico5, William J Riley3 and Margaret S Torn6, (1)Lawrence Berkeley National Laboratory, Climate and Ecosystem Science, Berkeley, CA, United States, (2)Dartmouth College Life Sciences Center, room 349 78, Hanover, NH, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States, (5)Lawrence Berkeley National Lab, Berkeley, CA, United States, (6)Berkeley Lab/UC Berkeley, Berkeley, CA, United States
 
Decomposition and stabilization of organic carbon in topsoil and subsoil (> 0.5 m) of five sites with different parent material under temperate broad leaf forest (545433)
Michael Kaiser, University of Nebraska Lincoln, Lincoln, NE, United States, Svendja Vormstein, University of Kassel, Witzenhausen, Germany, Hans-Peter Piepho, University of Hohenheim, Hohenheim, Germany and Bernard Ludwig, University of Kassel, Witzenhasen, Germany
 
Distribution and Composition of Soil Organic Matter in a Buried Soil: Differences Along Eroding and Depositional Transects (561762)
Manisha Dolui1, Laura Melissa Szymanski2, Abbygail McMurtry3, Erika Marin-Spiotta2, Joseph A Mason4, Marie-Anne De Graaff3 and Asmeret Asefaw Berhe1, (1)UC Merced, Merced, CA, United States, (2)University of Wisconsin Madison, Madison, WI, United States, (3)Boise State University, Boise, ID, United States, (4)University of Wisconsin-Madison, Geography, Madison, WI, United States
 
Distribution of carbon varies among soil organic matter pools isolated by electrostatic fractionation in ancient, buried soils along an erosional transect (589154)
Laura Melissa Szymanski1, Taylor McDowell1, Abbygail McMurtry2, Manisha Dolui3, Marie-Anne De Graaff2, Asmeret Asefaw Berhe3, Joseph A Mason4 and Erika Marin-Spiotta1, (1)University of Wisconsin Madison, Madison, WI, United States, (2)Boise State University, Boise, ID, United States, (3)UC Merced, Merced, CA, United States, (4)University of Wisconsin-Madison, Geography, Madison, WI, United States
 
Bias and Constraints on Carbon Cycling in Tropical Forest Soils With Measurements and Modeling of Soil Carbon and Radiocarbon (620638)
Nina Zhang1,2, Karis J McFarlane1, Qing Zhu3, Kari M Finstad4, Benjamin L Turner5 and A Scott Denning6, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)Colorado State University, Fort Collins, CA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)University of California Berkeley, Berkeley, CA, United States, (5)Smithsonian Tropical Res Inst, Ancon, Panama, (6)Colorado State University, Atmospheric Sciences, Fort Collins, CO, United States
 
Thermal Acclimation of Soil Microbial Communities Declines with Depth (621508)
Neslihan Tas1, Stephen C Hart2, Margaret S Torn3 and Nicholas C Dove2, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)University of California Merced, Merced, CA, United States, (3)Berkeley Lab/UC Berkeley, Berkeley, CA, United States
 
Climatic Controls on Deep Soil Organic Carbon Persistence Across a Bioclimatic Gradient in California (622997)
Kimber Candice Moreland1, Zhiyuan Tian2, Karis J McFarlane3, Anthony T O'Geen2 and Asmeret Asefaw Berhe4, (1)University of California Merced, Merced, CA, United States, (2)University of California Davis, Davis, CA, United States, (3)Lawrence Livermore National Laboratory, Livermore, CA, United States, (4)UC Merced, Merced, CA, United States
 
Shale as a Source of Organic Carbon in Floodplain Sediments of a Mountainous Watershed (623296)
Patricia M Fox1, Markus Bill2, Katherine A Heckman3, Mark E Conrad4, Carolyn Anderson5, Marco Keiluweit6 and Peter S Nico4, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (2)Lawrence Berkeley National Lab, Berleley, CA, United States, (3)USDA Forest Service, Vallejo, CA, United States, (4)Lawrence Berkeley National Lab, Berkeley, CA, United States, (5)University of Massachusetts Amherst, Amherst, United States, (6)University of Massachusetts Amherst, Amherst, MA, United States
 
Controls of iron abundance and crystallinity on organomineral associations under contrasting long-term land use (625180)
Aaron Thompson, University of Georgia, Crop and Soil Science, Athens, GA, United States, Elizabeth K Coward, University of Delaware, Delaware Environmental Institute, Newark, DE, United States, Daniel Markewitz, University of Georgia, Athens, GA, United States, Daniel deB. Richter Jr, Duke University, Nicholas School of the Environment, Durham, NC, United States, Allan R Bacon, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States and Alain F Plante, University of Pennsylvania, Earth & Environmental Science, Philadelphia, PA, United States
 
Deep carbon storage in Midwestern loess soils under agriculture and prairie land use (631159)
Ashlee Laura Denton Dere, University of Nebraska at Omaha, Omaha, NE, United States, Lee A. Stover, Burke High School, Omaha, NE, United States, Rachel Benzoni, Northwest High School, Omaha, United States, Kasie Knapp, University of Nebraska at Omaha, Geography/Geology, Omaha, NE, United States and Andrew W Miller, University of Nebraska at Omaha, Chemistry, Omaha, NE, United States
 
Whole-profile soil carbon change after 25 years along an agricultural management gradient. (634376)
Carolina Cordova, Michigan State University, W.K. Kellogg Biological Station, East Lansing, MI, United States and Philip Robertson, Michigan State University, Hickory Corners, MI, United States
 
Microbial, Physical and Biochemical Controls over Soil Organic Matter Turnover in Deep Subsoils of the Cooloola Sand Dune Chronosequence, Australia (634803)
Andrew Jones1, Vadakattu Gupta2, Susanne Schmidt3 and Ram C Dalal3, (1)University of Queensland, St Lucia, QLD, Australia, (2)CSIRO, Adelaide, Australia, (3)The University of Queensland, Brisbane, Australia
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