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Seth Pritchard

Department Chair, Professor

Address: HWWE 205 Lab: SSMB 226
Phone: 843.953.5504

Research Interests

Understanding how global environmental changes will influence forest function with emphasis on quantifying controls of carbon and nitrogen flow through the atmosphere-plant-soil microbe continuum.   

Environmental and Sustainability Studies Minor Information

Courses Taught

BIO 304: Plant Physiology
ENVT 200
: Intro to Environmental Studies


Meier IC, Pritchard SG, Brzostek ER, McCormack ML, Phillips RP. 2015. Rhizosphere and hyphosphere differ in their impacts on carbon and nitrogen cycling in forests exposed to elevated CO2. New Phytologist, in press.

Beidler KT, Taylor BN, Strand AE, Cooper ER, Schönholz M, Pritchard SG. 2015. Changes in root architecture under elevated levels of CO2 and N reflect alternate soil exploration strategies. New Phytologist, in press.

Taylor BN, Strand AE, Cooper ER, Beidler KV, Schönholz M, Pritchard SG. 2014. Root length, biomass, tissue chemistry and mycorrhizal colonization following 14 years of CO2 enrichment and 6 years of N fertilization in a warm temperate forest. Tree Physiology 34:955-965.

Taylor BN, Beidler KV, Strand AE, Pritchard SG. 2014. Improved scaling of minirhizotron data using an empirically-derived depth of field and correcting for the underestimation of root diameters. Plant and Soil 374:941-948.

Pritchard SG, Taylor BN, Cooper ER, Beidler KV, McCormack ML, Strand AE, Zhang S. 2014. Long-term dynamics of mycorrhizal root tips in a loblolly pine forest grown with free-air-CO2-enrichment and soil N fertilization for 6 years. Global Change Biology 20:1313-1326.

Runion, G. B.; Pritchard, S.G., and Prior, S.A. 2014. Leaves: Effects of Elevated CO2 Levels. pp. 338-342. In Wang, Y.Q. (ed.), Encyclopedia of Natural Resources. Taylor & Francis, New York.

Fernandez CW, McCormack ML, Hill JM, Pritchard SG, Koide RT. 2013. On the persistence of Cenococcum geophilum ectomycorrhizas and its implications for forest carbon and nutrient cycles. Soil Biology and Biochemistry 65:141-143.

Taylor BN, Beidler KV, Cooper ER, Strand AE, Pritchard SG. 2013. Sampling volume in root studies: the pitfalls of under-sampling exposed using accumulation curves. Ecology Letters 16:862-869.

Drake JE, DeLucia EH, Gallet-Budynek A, Hofmockel KS, Bernhardt ES, Billings SA, Jackson RD, Lichter J, McCormack ML, Moore DJP, Oren R, Palmroth S, Phillips RP, Pippen JS, Pritchard SG, Treseder KK, Finzi AC. Increases in the flux of carbon belowground stimulate nitrogen uptake and sustain the long-term enhancement of forest productivity under elevated CO2. Ecology Letters 14:349-357.

Pritchard SG. 2011. Soil organisms and global climate change. Plant Pathology 60:82-99.

Pritchard SG, Maier CA, Johnson KH, Grabman AJ, Chalmers AP, Burke MK. 2010. Soil incorporation of logging residue affects fine-root and mycorrhizal root-tip dynamics of young loblolly pine clones. Tree Physiology 30:1299-1310.

McCormack LM, Pritchard SG, Breland S, Davis MA, Prior SA, Runion GB, Mitchell RJ, and Rogers HH. 2010. Soil fungi respond more strongly than fine roots to elevated CO2 in a model regenerating longleaf pine-wiregrass ecosystem. Ecosystems 13:901-916.

McCarthy H, Oren R, Johnson K, Gudynek-Gallet A, Pritchard SG, Cook C, LaDeau S, Jackson R, Finzi A. 2010. Re-assessment of plant carbon dynamics at the Duke free-air CO2 enrichment site: interactions of atmospheric [CO2] with nitrogen and water availability over stand development. New Phytologist 185:514-528.

Pritchard SG, Strand AE, McCormack ML, Davis MA, and Oren R. 2008. Mycorrhizal and rhizomorph dynamics in a loblolly pine forest during five years of free-air-CO2-enrichment (FACE). Global Change Biology 14:1252-1264.

Strand AE, Pritchard SG, McCormack ML, Davis MA, and Oren R. Irreconcilable differences: fine root lifespans and soil carbon persistence. Science 319:456-458

Pritchard SG, Strand AE, *McCormack ML, Davis MA, Finzi AC, Jackson RB, Matamala R, Rogers HH, and Oren R. Fine root dynamics in a loblolly pine forest are influenced by Free-Air-CO2-Enrichment (FACE): a six year minirhizotron study. Global Change Biology 14:588-602.

Pritchard SG, Strand AE. 2008. Can you believe what you see? Reconciling minirhizotron and isotopic estimates of fine root longevity. New Phytologist 177:285-287.

Finzi AC, Norby RJ, Calfapietra C, Gallet-Budynek A, Gielen B, Holmes WE, Hoosbeek MR, Iversen C, Kubiske ME, Liberloo M, Oren R, Polle A, Pritchard SG, Jackson RB, Zak DR, Schlesinger, WH, and Ceulemans R. 2007. Increases in nitrogen uptake rather than nitrogen-use efficiency support higher rates of temperate forest productivity under elevated CO2. Proceedings of the National Academy of Sciences 104:14014-14019.