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762 Symposium --Not Only Skin Deep: Does Soil C Exist and Change Below 20 cm?

Oral Session
S07 Forest, Range & Wildland Soils
This is the second S7 sponsored symposium, presentation are proposed for 20 minutes.
Wednesday, 8 October 2008: 8:00 AM-12:20 PM
George R. Brown Convention Center, 362C

Presiding:
Daniel Richter , Robert Harrison and Thomas Fox
8:00 AM
Introductory Remarks
8:05 AM
762-1
Contributions of Subsurface Horizons and Coarse Fragments to Carbon and Nutrient Pools in Forest Soils of the Southern Appalachians.
Thomas Fox, Virginia Polytechnic Inst. & State Univ. (Virginia Tech); Eric Sucre, Weyerhaeuser; M. Paige Parrish, Virginia Polytechnic Institute and State University; John Tuttle, USDA-NRCS
8:25 AM
762-2
Water, Nutrients, Roots, and Mutualists: Vertical Patterns in Semiarid Woodlands across the Substrate Age Gradient of Arizona (SAGA).
Greg S. Newman, Northern Arizona University; Stephen C. Hart, Northern Arizona University; Kristin Haskins, The Arboretum at Flagstaff; Andrew Kowler, University of Arizona; Paul Selmants, Northern Arizona University
8:45 AM
762-3
Effects of Land Use Change on Grassland Soil Carbon Pools: Does Depth of Measurement Matter?.
Rebecca McCulley, Univ. of Kentucky; Robert B. Jackson, Duke University
9:05 AM
762-4
Deep Soil Water Buffers Drought Response in an Amazonian Forest.
Eric Davidson, Woods Hole Res. Ctr.; Daniel Nepstad, Woods Hole Res. Ctr.; Paulo Brando, University of Florida; Daniel Markewitz, Univ. of Georgia
9:25 AM
Break
9:40 AM
762-5
Does Management Intensity Affect Soil Carbon and Nitrogen Pools at Depth in Northern California Ponderosa Pine Plantations?.
Karis McFarlane, Lawrence Livermore Natl. Lab.; Stephen Schoenholtz, Virginia Polytechnic Inst. & State Univ. (Virginia Tech); Robert Powers, PSW Res. Stn.
9:55 AM
762-6
Fine Root Dynamics Alter Biogeochemical Fluxes at Soil Depths up to 60 cm in a CO2-Enriched Sweetgum Plantation.
Jeffrey Warren, Oak Ridge National Laboratory; Colleen Iversen, University of Tennessee, Knoxville; Joanne Ledford, Oak Ridge National Laboratory; Richard J. Norby, Oak Ridge National Lab.
10:10 AM
762-7
Vertical Distribution of Organic Carbon in Boreal Forest Soils across Alaska.
Chien-Lu Ping, Univ. of Alaska, Fairbanks; Gary Michaelson, University of Alaska-Fairbanks; Edmond Packee, University of Alaska-Fairbanks
10:25 AM
762-8
Stabilized Carbon Pools in Forest Soils Below 20 cm Depth - Potential Sinks for Atmospheric CO2?.
Klaus Lorenz, The Ohio State University; Rattan Lal, The Ohio State University
10:40 AM
762-9
Effects of Tillage and Forest Succession on DOC and Total Soil Carbon: A Full Profile Perspective.
Scott Devine, Univ. of Georgia; Daniel Markewitz, Univ. of Georgia
10:55 AM
Break
11:10 AM
762-10
Total Carbon and Nitrogen Deeper in the Soil Profile.
Darlene Zabowski, University of Washington; Nicol Whitney, University of Washington; Janita Gurung, University of Washington; Jeff Hatten, University of Washington
11:30 AM
762-11
Subsoil Nutrient Responses to Harvesting, Fire, and Elevated CO2.
Dale Johnson, Univ. of Nevada, Reno
11:50 AM
762-12
N Fertilization Impacts on C in Shallow Vs. Deep Soil Horizons: Observations and Mechanisms.
Robert Harrison, Univ. of Washington; Dave Briggs, University of Washington; Eric Turnblom, University of Washington; Kim Littke, University of Washington; Paul Footen, University of Washington
12:10 PM
Discussion
12:20 PM
Adjourn
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