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| | 8:00 AM | Introductory Remarks |
| 63-1 | 8:05 AM | Estimates of Atmospheric CO<sub>2</sub> For the Past 420 Million Years and Its Relationship to Temperature: ROYER, Dana L.1, BERNER, Robert A.2, and PARK, Jeffrey2, (1) Dept. of Earth & Environmental Sciences, Wesleyan Univ, Middletown, CT 06459, droyer@wesleyan.edu, (2) Dept. of Geology & Geophysics, Yale Univ, New Haven, CT 06520 |
| 63-2 | 8:25 AM | Forest Soil Respiration: What Don't We Know?: RAICH, Jim, Iowa State University, Ames, IA 50011-1020, jraich@iastate.edu |
| 63-3 | 8:45 AM | Sniffing the Air In Ancient Soils: Pedogenic Goethite and Soil Carbon Dioxide: YAPP, Crayton J., Huffington Department of Earth Sciences, Southern Methodist University, Dallas, TX 75275-0395, cjyapp@smu.edu |
| 63-4 | 9:05 AM | Soil Respiration: Influence of Agricultural Management: ROCHETTE, Philippe, Agriculture and Agri-Food Canada, 2560, Hochelaga Blvd, Québec City, QC G1V 2J3 Canada, rochettep@agr.gc.ca |
| 63-5 | 9:25 AM | Carbon Isotope Geochemistry of Co-Existing Paleosol Calcite and Organic Matter: Indicator of Soil CO2 Concentration, Actual Evapotranspiration, and the Driest Landscapes on Earth: TABOR, Neil, Department of Geological Sciences, Southern Methodist University, P.O. Box 750395, Dallas, TX 75275-0395, ntabor@smu.edu, MONTANEZ, Isabel, Department of Geology, Univ of California, Davis, CA 95616, and POULSEN, Christopher J., Department of Geological Sciences, University of Michigan, 2434 C.C. Little Building, 1100 N. University Avenue, Ann Arbor, MI 48109-1005 |
| 63-6 | 9:45 AM | Methodological Considerations of High Frequency Automated Soil Respiration Measurements: DAVIDSON, Eric1, SAVAGE, Kathleen E.1, and RICHARDSON, Andrew D.2, (1) The Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA 02540-1644, edavidson@whrc.org, (2) Complex Systems Research Center, University of New Hampshire, Morse Hall, 39 College Road, Durham, NH 03824 |
| 63-7 | 10:05 AM | Possible Implications of Variations of Carbon Dioxide Concentration and 13C/12C In a Mid-Cretaceous Paleosol as Estimated from the Fe(CO3)OH Component of Goethite: FENG, Weimin, Roy M. Huffington Department of Earth Sciences, Southern Methodist Univ, Dallas, TX 75275, wfeng@smu.edu and YAPP, Crayton J., Roy M. Huffington Department of Earth Sciences, Southern Methodist University, PO Box 750395, Dallas, TX 75275 |
| 63-8 | 10:20 AM | Comparison of Soil CO2 Fluxes by Eddy-Covariance and Chamber Methods in Fallow Periods of a Corn-Soybean Rotation: HERNANDEZ-RAMIREZ, Guillermo, PARKIN, Timothy B., HATFIELD, Jerry, SAUER, Thomas J., and PRUEGER, John, USDA-ARS, National Soil Tilth Laboratory, 2110 University Blvd, Ames, IA 50011-3120, Guillermo.Hernandez@ARS.USDA.GOV |
| 63-9 | 10:35 AM | Exploring the Sensitivity of Paleo-PCO2 Models Based on δ13C of Pedogenic Gibbsite to Changing Soil Variables with Depth Using Numerical Methods: AUSTIN, Jason1, SCHROEDER, Paul2, and DOWD, John2, (1) Geology, University of Georgia, 45 Lamar Lane, Hoschton, GA 30548, austinj1@uga.edu, (2) Department of Geology, University of Georgia, 210 Field Street, Athens, GA 30602 |
| 63-10 | 10:50 AM | Impact of Urbanization on CO2 Fluxes and Sources from Houston-Area Watersheds: ZENG, Fanwei and MASIELLO, Carrie A., Earth Science, Rice University, 6100 Main Street, Houston, TX 77005, fwzeng@rice.edu |
| 63-11 | 11:05 AM | Estimating Soil C, N, and P Mineralization from Short-Term CO2 Respiration: HANEY, Richard L., USDA-ARS, 808 E Blackland Rd, Temple, TX 76502, rick.haney@ars.usda.gov |
| 63-12 | 11:20 AM | Influences of Stand Density on Soil Respiration for Pinus Densiflora: SON, Y.1, NOH, N.J.2, SEO, K.W.2, HEO, S.J.2, LEE, S.K.2, KIM, D.H.2, LEE, W.K.2, KIM, C.3, BAE, S.W.4, and HWANG, J.H.4, (1) Div. Environ. Sci. & Ecol. Eng, Korea University, Anam-dong, Sungbuk-ku, Seoul, 136-701, South Korea, yson@korea.ac.kr, (2) Korea University, Seoul, 136-701, South Korea, (3) Jinju National University, Jinju, 660-758, South Korea, (4) Korea Forest Research Institute, Pochon, 487-821, South Korea |
| 63-13 | 11:35 AM | Variation In Soil CO2 Flux In a Tropical Dryland Agroecosystem: Impact of Addition of Various Resource Quality Inputs: GHOSHAL, Nandita, SINGH, Sonu, and SINGH, K.P., Botany, Banaras Hindu University, Department of Botany, Faculty of Science, Varanasi, 221005, India, n_ghoshal@yahoo.co.in |
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