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Charles T. Garten, Jr. Nutrient Biogeochemistry Group Environmental Sciences Division Oak Ridge National Laboratory Oak Ridge, TN 37831-6036 Phone:  (865)574-7355 Fax:  (865)576-8543 (Fedex address replace P.O. Box 2008 with Bethel Valley Road) gartenctjr@ornl.gov

Research Interests

Carbon and nitrogen dynamics in forests and bioenergy crops; applications of stable nitrogen and carbon isotopes in terrestrial biogeochemical cycles; compartmental modeling of ecosystem biogeochemical cycles; recovery and sustainability of ecosystems following disturbance; environmental behavior of long-lived radioactive elements; relationships between environment, ecosystems, and human health

Education  [ Top ]

• B.S., Biology, Washington and Lee University
• Graduate Studies in Zoology, University of Alberta, Edmonton
• M.S., Zoology, University of Georgia
• M.S.E.H., Environmental Health, East Tennessee State University

Selected Publications  [ Top ]

• Garten Jr CT, Classen AT, Norby RJ, Brice DJ, Weltzin JA (2008) Role of N₂-fixation in constructed old-field communities under different regimes of [CO2], temperature, and water availability. Ecosystems 11: 125-137.
• Maloney KO, Garten Jr CT, Ashwood TL (2008) Changes in soil properties following 55 years of secondary forest succession at Fort Benning, Georgia, USA. Restoration Ecology 16: 503-510.
• Garten Jr CT, Brice DJ, Todd Jr DE (2007) Short-term recovery of ammonium-15nitrogen applied to a temperate forest Inceptisol and Ultisol in east Tennessee, USA. Communications in Soil Science and Plant Analysis 38: 2693-2704.
• Garten Jr CT, Hanson PJ, Todd Jr DE, Lu BW, Brice DJ (2007) Natural 15N and 13C abundance as indicators of forest N status and soil C dynamics, pp. 61-82. IN (RH Michener and K Lajtha, eds.) Stable Isotopes in Ecology and Environmental Science (second edition). Blackwell Science, Oxford.
• Garten Jr CT, Kang SH, Brice DJ, Schadt CW, Zhou J (2007) Variability in soil properties at different spatial scales (1 m to 1 km) in a deciduous forest ecosystem. Soil Biology and Biochemistry 39: 2621-2627.
• Whicker FW, Garten Jr CT, Hamby DM, Higley KA, Hinton TG, Kaplan D, Rowan DJ, Schreckhise RG (2007) Cesium-137 in the Environment: Radioecology and Approaches to Assessment and Management. National Council on Radiation Protection and Measurements Report, Washington, D.C. 382 pp.
• Garten Jr CT, Hanson PJ (2006) Measured forest soil C stocks and estimated turnover times along an elevation gradient. Geoderma 136: 342-352.
• Garten Jr CT (2006) Predicted effects of prescribed burning and harvesting on forest recovery and sustainability in southwest Georgia. Journal of Environmental Management 81: 323-332.
• Garten Jr CT (2006) Relationships among forest soil C isotopic composition, partitioning, and turnover times. Canadian Journal of Forest Research 36: 2157-2167.
• Garten Jr CT, Ashwood TL (2004) Modeling soil quality thresholds to ecosystem recovery at Fort Benning, GA, USA. Ecological Engineering 23: 351-369.

September 2008