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Journal Articles


Chen X, Post WM, Norby RJ, Classen AT. 2011. Modeling soil respiration and variations in source components using a multi-factor global climate change experiment. Climatic Change 107:459-480.

Kardol P, Reynolds WN, Norby RJ, Classen AT. 2011. Climate change effects on soil microarthropod abundance and community structure. Applied Soil Ecology 47: 37-44.

Brosi GB , McCulley RL, Bush LP, Nelson JA, Classen AT, Norby RJ. 2010. Effects of multiple climate change factors on the tall fescue-fungal endophyte symbiosis: infection frequency and tissue chemistry. New Phytologist 189:797-805.

Castro HF, Classen AT, Austin EE, Norby RJ, Schadt CW. 2010. Precipitation regime is the major driver of changes in soil microbial community structure over CO2 and temperature in a multifactorial climate change experiment. Applied and Environmental Microbiology 76: 999-1007.

Classen AT, Norby RJ, Campany CE, Sides KE, Weltzin JF. 2010. Climate change alters seedling emergence and establishment in an old-field ecosystem. PLoS ONE 5: e13476.

de Graaff MA, Classen AT, Castro HF, Schadt CW. 2010. Labile soil carbon inputs mediate the soil microbial community composition and plant residue decomposition rates. New Phytologist 188: 1055-1064.

Kardol P, Campany CE, Souza L, Norby RJ, Weltzin JF, Classen AT. 2010. Climate change effects on plant biomass alter dominance patterns and community evenness in an experimental old-field ecosystem. Global Change Biology 16: 2676-2687.

Kardol P, Cregger MA, Campany CE, and Classen AT. 2010. Soil ecosystem functioning under climate change: plant species and community effects. Ecology 91:767-781.

Engel EC, Weltzin JF, Norby RJ, Classen AT. 2009. Responses of an old-field plant community to interacting factors of elevated [CO2], warming, and soil moisture. Journal of Plant Ecology 2: 1-11.

Garten CT Jr., Classen AT, Norby RJ. 2009. Soil moisture surpasses elevated CO2 and temperature in importance as a control on soil carbon dynamics in a multi-factor climate change experiment. Plant and Soil 319: 85-94.

Villalpando SN, Williams RS, Norby RJ. Elevated air temperature alters an old-field insect community in a multifactor climate change experiment. Global Change Biology 15: 930-942.

Garten CT Jr., Classen AT, Norby RJ, Brice, DJ, Weltzin JF, Souza L. 2008. Role of N2-fixation in constructed old-field communities under different regimes of [CO2], temperature, and water availability. Ecosystems 11 125-137.[abstract and link to online publication] |  [full text in pdf]

Dermody O, Weltzin JF, Engel EC, Allen P, Norby RJ. 2007. How do elevated [CO2], warming, and reduced precipitation interact to affect soil moisture and LAI in an old field ecosystem? Plant and Soil 301: 255-266. [abstract and link to online publication] |  [full text in pdf]

Tyner ML, Classen AT. 2007. Climate change effects on species composition mediates decomposition in an old-field ecosystem. Journal of Undergraduate Research 7: 110-114.

Wan S, Norby RJ, Ledford J, Weltzin JF. 2007. Responses of soil respiration to elevated CO2, air warming, and changing soil water availability in an old-field grassland. Global Change Biology 13: 2411-2424. [abstract and link to online publication] |  [full text in pdf]

Perkins TA, Holmes WR, Weltzin JF. 2007. Multi-species interactions in competitive hierarchies: New methods and empirical test. Journal of Vegetation Science 18: 685-692. [abstract and link to online publication]

Engel EC, Weltzin JF. 2007. Can community composition be predicted from pairwise species interactions? Plant Ecology 10.1007/s11258-007-9300-2

Fortner AM, Weltzin JF. 2007. Competitive hierarchy for four common old-field plant species depends on resource identity and availability. Journal of the Torrey Botanical Society 134:166-176.

Dermody O. 2006. Mucking through multi-factor experiments; design and analysis of multi-factor studies in global change research. New Phytologist 172:598-600

Heisler JL, Weltzin JF. 2006. Variability matters: towards a perspective on the influence of precipitation on terrestrial ecosystems. New Phytologist 172:189-192.

Classen AT, Langley JA. 2005. Data-model integration is not magic. New Phytologist 166: 367-369.

Norby RJ, Luo Y. 2004. Evaluating ecosystem responses to rising atmospheric CO2 and global warming in a multi-factor world. New Phytologist 162: 281-294.

Book Chapters
Norby RJ, Rustad LE,  Dukes JS, Ojima DS, Parton WJ, Del Grosso SJ, McMurtrie RE, Pepper DA. 2007. Ecosystem responses to warming and interacting global change factors. pp. 23-36 In Canadell JG, Pataki DE, Pitelka LF, eds., Terrestrial Ecosystems in a Changing World, Springer-Verlag, Berlin.


Presentations
Classen AT, Norby RJ, Weltzin JF, Ledford J. 2005. Belowground response to global change effects of atmospheric carbon dioxide, surface temperature, and soil moisture. Annual meeting, Ecological Society of America, Montreal, Canada, August, 2005. [abstract]

Engel C, Weltzin J, Norby R. 2005. Species-specific and community responses of an old-field plant community to the interacting factors of elevated [CO2], warming, and soil moisture content. Annual meeting, Ecological Society of America, Montreal, Canada, August, 2005. [abstract]

Wan S, Norby RJ, Weltzin JF, Allen PB. 2005. No responses of belowground C and N pools and dynamics to elevated CO2, rising temperature and changing soil moisture in old-field grassland. Annual meeting, Ecological Society of America, Montreal, Canada, August, 2005. [abstract]

Souza L, Nagel J, Engel E, Weltzin J, Norby R. 2005. Do mid-day carbon and water exchange differ from integrated values in four old-field species under global climate change? Annual meeting, Ecological Society of America, Montreal, Canada, August, 2005. [abstract]

Weltzin, J.F., P.B. Allen, R.J. Norby, and L.A.C. Souza. 2005. Soil moisture response to multiple, interacting factors of global change in an old-field ecosystem. TERACC Workshop, Modeling Ecosystem Responses to Global Change: Techniques and Recent Advances, January 2005, Fort Myers, FL. [Powerpoint poster (4.7 Mb)]

E.C. Engel, J.F. Weltzin, and R.J. Norby. 2004. CO2, temperature, and soil moisture interactions affect NDVI and reproductive phenology in old-field plant communities. American Geophysical Union Annual Meeting, 13-17 December 2004, San Francisco, CA. Poster. [abstract]

E.C. Engel, J.F. Weltzin, and R.J. Norby. 2004. Response of an old-field plant community to elevated, temperature, CO2, and soil moisture availability: What is the role of biotic interactions? Ecological Society of America Annual Meeting, 1-6 August 2004, Portland, OR. Poster. [abstract]

Weltzin, J.F., P.B. Allen, R.J. Norby, E.C. Engel, L. Souza, and S. Wan. 2004. Old-field communities and global change: interactive effects of carbon dioxide, temperature, and soil moisture. Ecological Society of America Annual Meeting, 1-6 August 2004, Portland, OR. Poster. [abstract]

Wan, S. R.J. Norby, J.F. Weltzin, C. Reilly, P.B. Allen. 2004. Global change and soil respiration: Complex responses to multiple interacting factors in old-field grassland. Ecological Society of America Annual Meeting, 1-6 August 2004, Portland, OR. Presented. [abstract]

Fortner, A.M. and J.F. Weltzin. 2004. Interspecific and intraspecific competition among four common old-field plant species. Southeastern Ecology and Evolution Conference, 5-7 March 2004, Atlanta, GA. Poster.

Allen, P.B, J.F. Weltzin, R.J. Norby, and J.E. Buckner. 2004. Simulating multifactor climate change in an old-field grass community: design, setup, and first year monitoring of the Old-field Community Climate and Atmosphere Manipulation project (OCCAM). Association of Southeastern Biologists Annual Meeting, 14-17 April 2004, Memphis, TN. Poster. [abstract]

Weltzin, J.F., P.B. Allen, R.J. Norby, E. Buckner, E.C. Engel, L. Souza, and S. Wan. 2004. Community and ecosystem response to global change: the Old-field Community Climate and Atmospheric Manipulation (OCCAM) project. Association of Southeastern Biologists Annual Meeting, 14-17 April 2004, Memphis, TN. Presented. [abstract]

Engel, E.C. and J.F. Weltzin. 2004. What factors drive the response of an old-field plant community to the interactive effects of CO2, temperature, and soil water availability? Association of Southeastern Biologists Annual Meeting, 14-17 April 2004, Memphis, TN. Presented. [abstract]

Souza, L., P.B. Allen, J.F. Weltzin, R.J. Norby, S. Wan. 2004. Leaf and ecosystem-level gas exchange responses to global change: the Old-field Community Climate and Atmospheric Manipulation (OCCAM) project. Association of Southeastern Biologists Annual Meeting, 14-17 April 2004, Memphis, TN. Presented. [abstract]

Engel, E.C. and J. F. Weltzin. 2003. What factors drive the response of an old-field community to the interactive effects of CO2, temperature, and soil water availability? South-east Ecology, Population Genetics, and Evolution (SEEPAGE) annual meeting; September 19-21 2003, South Holston Lake, VA. Poster.

Fortner, A.M. and J.F. Weltzin. 2003. Interspecific and intraspecific competition in old-field plant communities. Ecological Society of America Annual Meeting, 3-8 August 2003, Savannah, GA. Poster. [abstract]

Engel, E.C. and J.F. Weltzin. 2003. How does plant competition mediate the interactive effects of CO2, temperature, and soil water availability? Ecological Society of America Annual Meeting, 3-8 August 2003, Savannah, GA. Poster. [abstract]

Engel, E.C., J.F. Weltzin, R.J. Norby, R.M. Miller, and P.B. Allen. 2003. Old-field Community Climate and Atmospheric Manipulation facility (OCCAM) - Community and ecosystem response to global change: interactive effects of atmospheric carbon dioxide, surface temperatures, and soil moisture. Terrestrial Ecosystem Responses to Atmospheric and Climatic Change (TERACC) Workshop; 27-30 April 2003, Lake Tahoe, CA. Poster.


Related Publications

ORNL Publications on Plant and Ecosystem Response to Warming


ORNL Publications on Plant Response to Elevated CO2



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Last revised: September 3, 2011