Barry Clinton, Research Ecologist

« Please Note: Barry Clinton is no longer active on the CWT-LTER Project so contact information may not be accurate (see the CWT Personnel page for an up-to-date list of participants) »

Barry Clinton

Research Emphasis:

Forest management practice, nutrient cycling, and water quality

Contact Information:

Primary Organization:  USDA Forest Service

Mailing Address:

Dr. Barton D. Clinton
Coweeta Hydrologic Laboratory
3160 Coweeta Lab Road
Otto, NC 28763

Office Phone:  828.524.2128

FAX Number:  828.369.6768


Web Page:

CWT Data Sets:

1037 (Probing the mechanisms by which sub-canopy evergreen shrubs inhibit tree seedling recruitment at the Coweeta Hydrologic Laboratory from 1999 to 2003)

4025 (Post-burn study of herbaceous understory plots at Jacobs Branch and Devils Den burn sites, 1992)

4032 (Post-burn study of herbaceous understory plots at Jacobs Creek and Devils Den burn sites, 1990)

4027 (Post-burn study of herbaceous vegetation at Jacobs Branch and Devils Den burn sites, 1990-1994)

4029 (Post-burn study of woody plants at Devils Den burn site, 1991-1992)

(most recent displayed - view all)

CWT Publications and Presentations: (custom bibliography)

Journal Articles

Elliott, K.J., Vose, J.M., Knoepp, J.D., Clinton, B.D. and Kloeppel, B.D. 2015. Functional role of the herbaceous layer in eastern deciduous forest ecosystems. Ecosystems. 18:221-236. (DOI: 10.1007/s10021-014-9825-x)

Elliott, K.J., J.M. Vose, J.D. Knoepp, B.D. Clinton. 2012. Restoring shortleaf pine (Pinus echinata)-hardwood ecosystems severely impacted by the southern pine beetle (Dendroctonus frontalis Zimmerman). Forest Ecology and Management 274:181-200.

Ford, C.R., Elliott, K.J., Clinton, B.D., Kloeppel, B.D., Vose, J.M., 2012. Forest dynamics following eastern hemlock mortality in the southern Appalachians. Oikos 121:4, April 2012, p. 523-536, doi: 10.1111/j.1600-0706.2011.19622.x, Nordic Society Oikos

Clinton B, Maier C, Ford C, Mitchell R. 2011. Transient changes in transpiration, and stem and soil CO2 efflux in longleaf pine (Pinus palustris Mill.) following fire-induced leaf area reduction. Trees - Structure and Function1-11. doi:10.1007/s00468-011-0574-6

Knoepp, J.D., Vose, J.M. and Clinton, B.D. 2011. Hemlock Infestation and Mortality: Impacts on Nutrient Pools and Cycling in Appalachian Forests. Soil Science Society of America Journal. 75(5):1-11. (DOI: 10.2136/sssaj2010.0409)

Clinton, B. D., J. M. Vose, J. D. Knoepp, K. J. Elliott, B. C. Reynolds, and S. J. Zarnoch. 2010. Can structural and functional characteristics be used to identify riparian zone width in southern Appalachian headwater catchments?. Canadian Journal of Forest Research, 40: 235-353.

Clinton, B.D, J.M. Vose, J.D. Knoepp, K.J. Elliott, and B. Reynolds. 2010. Riparian area structure and function in the southern Appalachian headwater streams. Canadian Journal of Forest Research 40(2): 235-253.

Clinton, Barton D.; Vose, James M.; Fowler, Dick L. 2010. Flat Branch monitoring project: stream water temperature and sediment responses to forest cutting in the riparian zone. Res. Pap. SRS–51. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 8 p.

Horton, J. L., Barton D. Clinton, John F. Walker, Colin M. Beier, and Erik T. Nilsen 2009. Variation in Soil and Forest Floor Characteristics Along Gradients of Ericaceous, Evergreen Shrub Cover in the Southern Appalachians. Castanea 74(4): 340-252.

Knoepp, J.D., Clinton, B.D. Riparian zones in southern Appalachian headwater catchments: Carbon and nitrogen responses to forest cutting. Forest Ecology and Management 258(10): 2282-2293.

Knoepp, J.D., Elliott, K.J., Clinton, B.D., Vose, J.M. 2009. Effects of prescribed fire in mixed oak forests of the southern Appalachians: forest floor, soil, and soil solution nitrogen responses. Journal oj the Torrey Botanical Society, 136(3): 380-391

Grace III, J.M., Clinton, B.D. 2007. Protecting Soil and Water in Forest Road Management. American Society of Agricultural and Biological Engineers, 50(5): 1579-1584

Clinton, B.D., and J.M. Vose. 2006. Variation in stream water quality in an urban headwater stream in the southern Appalachians. Water, Air, and Soil Pollution. 169: 331-353.

Maier, C.A., and B.D. Clinton. 2006. Relationship between stem CO2 efflux, stem sap velocity and xylem CO2 concentration in young loblolly pine trees. Plant, Cell and Environment. 29: 1471-1483.

Beier, C.M., J.L. Horton, J.F. Walker,B.D. Clinton, and E.T. Nilsen. 2005. Carbon limitation leads to suppression of first year oak seedlings beneath evergreen understory shrubs in Southern Appalachian hardwood forests. Plant Ecology. 176: 131-142.

Ellison, A.M., M.S. Bank, B.D. Clinton, E.A. Colburn, K. Elliott, C.R. Ford, D.R. Foster, B.D. Kloeppel, J.D. Knoepp, G.M. Lovett, J. Mohan, D.A. Orwig, N.L. Rodenhouse, W.V. Sobczak, K.A. Stinson, J.K. Stone, C.M. Swan, J. Thompson, and B. Von. 2005. Loss of foundation species: consequences for the structure and dynamics of forested ecosystems. Frontiers in Ecology and the Environment 3(9): 479-486.

Eppard, H. R., J.L. Horton, E.T. Nilsen, P. Galusky, and B.D. Clinton. 2005. Investigating the allelopathic potential of Kalmia latifolia L. (Ericaceae). Southeastern Naturalist. 4(3): 383-392.

Clinton, B.D., J.M. Vose, D.A. Vroblesky, and G.J. Harvey. 2004. Determination of the relative uptake of ground vs. surface water by Populus deltoids during phytoremediation. International Journal of Phytoremediation. 6(3): 239-252.

Hubbard, R.M., J.M. Vose, B.D. Clinton, K.J. Elliott, and J.D. Knoepp. 2004. Stand restoration burning in oak-pine forests in the southern Appalachians: effects on aboveground biomass and carbon and nitrogen cycling. Forest Ecology and Management. 190: 31

Vroblesky, D.A., B.D. Clinton, J.M. Vose, C.C. Clifton, G.J. Harvey, and P.M. Bradley. 2004. Ground water chlorinated ethenes in tree trunks: case studies, influence of recharge, and potential degradation mechanism. Ground Water Monitoring and Remediation. 24(3): 124-138.

Clinton, B.D. 2003. Light, temperature, and soil moisture responses to elevation, evergreen understory, and small canopy gaps in the southern Appalachians. Forest Ecology and Management. 186(1-3): 243-255.

Clinton, B.D., and J.M. Vose. 2003. Differences in Surface Water Quality Draining Four Road Surface Types in the Southern Appalachians. Southern Journal of Applied Forestry. 27(2): 100-106.

Clinton, B.D., J.A. Yeakley, and D.K. Apsley. 2003. Tree growth and mortality in a southern Appalachian deciduous forest following extended wet and dry periods. Castanea: 68(3): 189-200.

Elliott, K.J., J.M. Vose, and B.D. Clinton. 2002. Growth of Eastern White Pine (Pinus strobus L.) Related to Forest Floor Consumption by Prescribed Fire in the Southern Appalachians. Southern Journal of Applied Forestry. 26(1): 18-25.

Lei, T.T., S.W. Semones, J.F. Walker, B.D. Clinton, and E.T. Nilsen. 2002. Effects of Rhododendron Maximum thickets on tree seed dispersal, seedling morphology, and survivorship. International Journal of Plant Sciences. 163(6): 991-1000.

Vandermast, D.B., D.H. Van Lear, and B.D. Clinton. 2002. American chestnut as an allelopath in the southern Appalachians. Forest Ecology and Management. 165: 173-181.

Nilsen, E.T., B.D. Clinton, T.T. Lei, O.K. Miller, S.W. Semones, and J.F. Walker. 2001. Does Rhododendron maximum L. (Ericaceae) Reduce the Availability of Resources Above and Belowground for Canopy Tree Seedlings? American Midland Naturalist. 145: 325-34

Beckage, B., J.S. Clark, B.D. Clinton, and B.L. Haines. 2000. A long-term study of tree seedling recruitment in southern Appalachian forests: the effects of canopy gaps and shrub understudies. Canadian Journal Forestry Research. 30: 1617-1631.

Clinton, B.D., and C.R. Baker. 2000. Catastrophic windthrow in the southern Appalachians: characteristics of pits and mounds and initial vegetation responses. Elsevier: Forest Ecology and Management. 126: 51-60.

Vose, J.M., W.T. Swank, G.J. Harvey, B.D. Clinton, and C. Sobek. 2000. Leaf Water Relations and Sapflow in Eastern Cottonwood (Populus deltoides Bartr.) Trees Planted for Phytoremediation of a Groundwater Pollutant. International Journal of Phytoremediation. 2(1): 53-73.

Clinton, B.D., and J.M. Vose. 1999. Fine root respiration in mature eastern white pine (Pinus strobus) in situ: the importance of CO2 in controlled environments. Tree Physiology. 19: 475-479.

Nilsen, E.T., J.F. Walker, O.K. Miller, S.W. Semones, T.T. Lei, and B.D. Clinton. 1999. Inhibition Of Seedling Survival Under Rhododendron Maximum (Ericaceae): Could Allelopathy Be A Cause? American Journal of Botany. 86(11): 1597-1605.

Vose, J.M., W.T. Swank, B.D. Clinton, J.D. Knoepp, and L.W. Swift. 1999. Using stand replacement fires to restore southern Appalachian pine-hardwood ecosystems: effects on mass, carbon, and nutrient pools. Forest Ecology and Management. 114: 215-226.

Walker, J.F., O.K. Miller Jr., T. Lei, S. Semones, E. Nilsen, and B.D. Clinton. 1999. Suppression of ectomycorrhizae on canopy tree seedlings in Rhododendron maximum L. (Ericaceae) thickets in the southern Appalachians. Mycorrhiza 9: 49-56.

Clinton, B.D, K.J. Elliott, and W.T. Swank. 1997. Response of planted eastern white pine (Pinus strobus L.) to mechanical release, competition, and drought in the Southern Appalachians. Southern Journal of Applied Forestry. 21(1): 19-23.

Clinton, B.D., and J.M. Vose. 1996. Effects of Rhododendron maximum L. on Acer rubrum L. seedling establishment. Castanea. 61(1): 38-45.

Clinton, B.D., J.M. Vose, and W.T. Swank. 1996. Shifts in aboveground and forest floor carbon and nitrogen pools after felling and burning in the Southern Appalachians. Forest Science. 42(4): 431-441.

Vose, J.M., N.H. Sullivan, B.D. Clinton, and P.V. Bolstad. 1995. Vertical leaf area distribution, light transmittance, and application of the Beer-Lambert Law in four mature hardwood stands in the southern Appalachians. Canadian Journal of Forest Research. 25(6): 1036-1043

Clinton, B.D., L.R. Boring, and W.T. Swank. 1994. Regeneration patterns in canopy gaps of mixed-oak forests of the southern Appalachians: influences of topographic position and evergreen understory. American Midland Naturalist 132: 308-319.

Clinton, B., J.J. Vose, and W.T. Swank. 1993. Site preparation burning to improve southern Appalachian pine-hardwood stands: vegetation composition and diversity of 13-year-old stands. Canadian Jounal of Forest Research 23: 2271-2277.

Clinton, B., L.R. Boring. 1993. Characteristics of canopy gaps and drought influences in oak forests of the Coweeta Basin. Ecology 74(5): 1551-1558.

Clinton, B.D., and L.R. Boring. 1993. Canopy gap characteristics and drought influences in oak forests of the Coweeta basin. Ecology. 74(5): 1551-1558.

Books and Book Sections

Kloeppel, B.D., B.D. Clinton,J.M. Vose, and A.R. Cooper. 2003. Drought impacts on tree growth and mortality of southern Appalachian forests, pp. 43-55. In Greenland, D., D.G. Goodin, and R.C. Smith (eds.), Climate variability and ecosystem response at long-term ecological research sites. Oxford University Press, New York, NY.

Vose, J.M., G.J. Harvey, E.J. Elliott, and B.D. Clinton. 2003. Chapter 8: Measuring and modeling tree and stand level transpiration, pp. 263-282. In McCutcheon, S.C., J.L. Schnoor (eds.), Phytoremediation transformation and control of contaminants. John Wiley & Sons, Inc., Hoboken, NJ.

Clinton, B.D. 2002. Rhododendron maximum. In Francis, J.K. (ed.), Wildland shrubs of the United States and its territories. General Technical Report IITF-WB-1. USDA Forest Service, Southern Research Station, Coweeta Hydrologic Lab, Otto, NC.

Vose, J.M., B.D. Clinton, and V. Emrick. 1995. Forest floor C0_2_ flux from two contrasting ecosystems in the Southern Appalachians, pp. 165-171. In Gottschalk, K.W., and S.L. Fosbroke (eds.), Proceedings, 10th Central Hardwood Forest Conference, 5-8 March 1995, Morgantown, WV. General Technical Report NE-197. USDA Forest Servie, Northeastern Forest Experiment Station.

Theses and Dissertations

Clinton, Barton D.. 1989. Characteristics of drought-induced canopy gaps and subsequent regeneration patterns in mixed-oak forests of the Coweeta Basin. M.S. Thesis. Athens, GA: University of Georgia

Conference Proceedings (Published Papers and Abstracts)

Clinton, B.D., and J.M. Vose. 2007. Fuels consumption and nitrogen loss following prescribed fire: a comparison of prescription types in the southern Appalachians, pp. 231-240. In Buckley, D.S., and W.K. Clatterbuck (eds.), Proceedings 15th Central Hardwood Forest Conference, 27 February - 1 March 2006, Knoxville, TN. General Technical Report SRS-101. USDA Forest Service, Southern Research Station, Asheville, NC.

Latham, R.S., R.M. Wooten, A.C. Witt, S.J. Fuemmeler, K.A. Gillon, T.J. Douglas, J.B. Bauer, and B.D. Clinton. 2007. Big slow movers: a look at weathered-rock slides in western North Carolina, pp. 545-557. In Proceedings, 1st North American Landslide Conference, 3-8 June 2007, Vail, CO. AEG Special Publication No. 23.

Riedel, M.S., Swift Jr., L.W., Vose, J.M., and B.D. Clinton. 2007. Forest road erosion research at the Coweeta Hydrologic Laboratory. In: Furniss, M.; Clifton, C.; Ronnenberg, K., eds. Advancing the fundamental sciences: proceedings of the Forest Service National earth sciences conference. San Diego, CA. 18-22 October 2004. PNW-GTR-689, Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station.

Grace, J.M. III, and B.D. Clinton. 2006. Forest road management to protect soil and water, pp.1-13. In 2006 American Society of Agricultural and Biological Engineers Annual International Meeting, 9-12 July 2006, Portland, OR. American Society of Agricultural and Biological Engineers, St. Joseph, MI.

Knoepp, J.D., J.M. Vose, K.J. Elliott, B.D. Clinton, C.R. Ford, and B.D. Kloeppel. 2005. Hemlock Woolly Adelgid Research at the Coweeta Hydrologic Laboratory. In Proceedings, Save our hemlocks third symposium on hemlock woolly adelgid in the eastern United States.

Elliott, K.J., J.M. Vose, B.D. Clinton, and J.D. Knoepp. 2004. Effects of understory burning in a mesic mixed-oak forest o fthe southern Appalachians, pp. 272-283. In Engstrom, R.T., K.E.M. Galley, and W.J. de Groot (eds.), Proceedings of the 22nd Tall Timbers Fire Ecology Conference: Fire in Temperate, Boreal, and Montane Ecosystems. Tallahassee, FL. Tall Timbers Research Station, Tallahassee, FL.

Clinton, B.D., J.M. Vose, J.D. Knoepp, and K.J. Elliott. 2003. Stream nitrate response to different burning treatments in southern Appalachian forests, pp. 174-181. In Galley, K.E.M., R.C. Kilinger, and N.G. Sugihara (eds.), Proceedings of Fire Conference 2000: The First National Congress on Fire Ecology, Prevention, and Management. Tallahassee, FL. Miscellaneous Publication No. 13. Tall Timbers Research Station, Tallahassee, FL.

Van Lear, D.H., D.B. Vandermast, Rivers, C.T., Baker, T.T., Hedman, C.W., Clinton, B.D., and T.A. Waldrop. 2002. American chestnut, rhododendron, and the future of Appalachian cove forests. In Outcalt, K.W., (ed.) 2001, March 20-22; Knoxville, TN. Proceedings of the eleventh biennial southern silvicultural research conference. Gen. Tech. Rep. SRS-48. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 214 p.

Clinton, B.D., and J.M. Vose. 2000. Plant succession and community restoration following felling and burning in the Southern Appalachian Mountains, pp.22-29. In Moser, W.K., and C.F. Moser (eds.), Fire and Forest Ecology: Innovative Silviculture & Vegetation Management: Tall Timbers Fire Ecology ConferenceProceedings, 14-16 April 1998, Tallahassee, FL. No. 21. Tall Timbers Research Station, Tallahassee, FL.

Rivers, C.T., D.H. Van Lear, B.D. Clinton, and T.A. Waldrop. 1999. Community composition in canopy gaps as influenced by presence or absence of Rhododendron Maximum. In Haywood, J. D., (ed.) Proceedings of the tenth biennial southern silvicultural research conference; 1999, February 16-18; Shreveport, LA. Gen. Tech. Rep. SRS-30. U.S. Department of Agriculture, Forest Service, Southern Research Station. 57 p.

Vose, J.M., W.T. Swank, B.D. Clinton, R.L. Hendrick, and A.E. Major. 1997. Using fire to restore pine/hardwood ecosystems in the southern Appalachians of North Carolina. In Proceedings - Fire Effects on Rare and Endangered Species and Habitats Conference. 13-16 November 1995, Coeur d'Alene, ID. International Association of Wildland Fire, Fairfield, WA.

Clinton, B.D. 1995. Temporal variation in photosynthetically active radiation (PAR) in mesic Southern Appalachian hardwood forests with and without Rhododendron understories, pp.534-540. In Gottschalk, K.W., and S.L. Fosbroke (eds.), Proceedings, 10th Central Hardwood Forest Conference, 5-8 March 1995, Morgantown, WV. General Technical Report NE-197. USDA Forest Service, Northeastern Forest Experiment Station, Rendor, PA.

Clinton, Barton D. et. al., (LIDET) Long-Term Intersite Decomposition Experiment Team. 1995. Meeting the Challenge of Long-Term, Broad-Scale Ecological Experiments. Publication 19. LTER Network Office, Seattle, WA.

Vose, J., B. Clinton, and W. Swank. 1994. Fire, drought, and forest management influences on pine/hardwood ecosystems in the Southern Appalachians. In Fire and forest meteorology: proceedings of the 12th international conference on fire and forest meteorology; 26-28 October 1993, Jekyll Island, Georgia. Society of American Foresters Publication, Bethesda, MD.

Conference Posters and Presentations

Jennifer D. Knoepp, James M. Vose, Barton D. Clinton, and Mark D. Hunter, 2010. "Eastern Hemlock in Southern Appalachian Forests and the Impacts of Hemlock Woolly Adelgid on Nutrient Pools and Cycling," Fifth Symposium on Hemlock Woolly Adelgid in the Eastern United States, Asheville NC, August 2010


McNab, W.H., and B.D. Clinton. 2003. Kalmia latifolia L. In Francis, J.K. (ed.) Wildland shrubs of the United States and its territories. Gen. Tech. Rep. IITF-WB-1.

Clinton, B.D., J.M. Vose, W.T. Swank, E.C. Berg, and D.L Loftis. 1998. Fuel consumption and fire characteristics during understory burning in a mixed white pine-hardwood stand in the Southern Appalachians: Research Paper SRS-12. USDA Forest Service, Southern Research Station, Asheville, NC.

Elliott, K.J., and B.D. Clinton. 1993. Equations for estimating biomass of herbaceous and woody vegetation in early-successional Southern Appalachian pine-hardwood forests: Res. Note SE-365. USDA Forest Service, Southeastern Forest Experiment Station, Asheville, NC.