Microbial Processes > Long-Term Soil Productivity (LTSP) Study > LTSP Related Publications > 7 - Southern Research Station Publications

Southern and Affiliated Site LTSP Publications

Siegel, C.M. In progress. Validation of root growth models for compacted forest soils. Ph.D. dissertation. Virginia Polytechnic and State University, Blacksburg.

Eaton, R.; Smith, W.; Ludovici, K. In press. Growth response of dominant and co-dominant loblolly pines to organic matter removal, soil compaction, and competition control. Proceedings of the 14th Biennial Southern Silvicultural Research Conference. Gen. Tech. Rep. SRS-GTR-. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Eisenbies, M.H.; Burger, J.A.; Aust, W.M.; Patterson, S.C. In press. Changes in site productivity and the recovery of soil properties following wet- and dry-weather harvesting disturbances in the Atlantic coastal plain at stand age 10. Can. J. For. Res.

Scott, D.A.; Novosad, J.; Goldsmith, G. In press. Long-term soil productivity of western Gulf loblolly pine plantations. p. xxx–xxx, In: M. Furniss, ed. Proc. Advancing the Fundamentals of Science Conference. Gen. Tech. Rep. PNW-GTR- USDA Forest Service, Pacific Northwest Research Station, Portland, OR.

Bliss, C.M.; Scott, D.A.; Dean, T. 2006. Soil nutrient dynamics in response to forest floor manipulations across a site quality gradient. Agron. Abstr. 927. International Meeting of the American Society of Agronomy, Nov. 12–16, 2006, Indianapolis, IN. American Society of Agronomy, Madison, WI.

Busse, M.; Beattie, S.E.; Powers, R.F.; Sanchez, F.G.; Tiarks, A.E. 2006. Microbial community responses in forest mineral soil to compaction, organic matter removal, and vegetation control. Can. J. For. Res. 36: 577–588.

Butnor, J.R.; Johnsen, K.H.; Sanchez, F.G. 2006. Whole-tree and forest floor removal from a loblolly pine plantation have no effect on forest floor CO₂ efflux 10 years after harvest. For. Ecol. Manage. 277: 89–95.

Eaton, R.; Spaine, P.; Sanchez, F.G. 2006. Harvest intensity and understory control impacts on loblolly pine fusiform rust incidence. pp. 61–64. In: Proceedings of the 13th Biennial Southern Silvicultural Research Conference. Feb. 28–March 4. Memphis, TN. Gen. Tech. Rep. SRS-GTR-92. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Eisenbies, M.H. 2006. Long-term timber productivity research on intensively managed pine forests of the South. p. 139–153, In: Ireland, L.C.; Camp, A.E.; Brissette, J.C.; Donohew, Z.R. (eds). Long-term silvicultural and ecological studies: results for science and management. GISF Research Paper 005. Yale University. New Haven, CT.

Eisenbies, M.H.; Burger, J.A.; Aust, W.M.; Patterson, S.C.; Fox, T.R. 2006. Assessing change in soil-site productivity of intensively managed loblolly pine plantations. Soil Sci. Soc. Am. J. 70: 130–140.

Fleming, R.L.; Powers, R.F.; Foster, N.W.; Kranabetter, J.M.; Scott, D.A.; Ponder, F., Jr.; Berch, S.; Chapman, W.K.; Kabzems, R.D.; Ludovici, K.H.; Morris, D.M.; Page-Dumroese, D.S.; Sanborn, P.T.; Sanchez, F.G.; Stone, D.M.; Tiarks, A.E. 2006. Effects of organic matter removal, soil compaction, and vegetation control on 5-year seedling performance: a regional comparison of Long-Term Soil Productivity sites. Can. J. For. Res. 36: 529–550.

Page-Dumroese, D.S.; Jurgensen, M.F.; Tiarks, A.E.; Ponder, F., Jr.; Sanchez, F.G.; Fleming, R.L.; Kranabetter, J.M.; Powers, R.F.; Stone, D.M.; Elioff, J.D.; Scott, D.A. 2006. Soil physical property changes at the North American Long-Term Soil Productivity study sites: 1 and 5 years after compaction. Can. J. For. Res. 36: 51–564.

Sanchez, F.G.; Scott, D.A.; Ludovici, K.H. 2006. Negligible effects of severe organic matter removal and soil compaction on loblolly pine growth over 10 years. For. Ecol. Manage. 227: 145–154.

Sanchez, F.G.; Tiarks, A.E.; Kranabetter, J.M.; Page-Dumroese, D.S.; Powers, R.F.; Sanborn, P.T.; Chapman, W.K. 2006. Effects of organic matter removal and soil compaction on fifth-year mineral soil carbon and nitrogen contents for sites across the United States and Canada. Can. J. For. Res. 36: 565–576.

Scott, D.A., Burger, J.A.; Crane, B.S. 2006. Expanding site productivity research to sustain non-timber forest functions. For. Ecol. Manage. 227: 185–192.

Scott D.A.; Dean, T.J. 2006. Energy trade-offs between intensive biomass utilization, site productivity loss, and ameliorative treatments in loblolly pine plantations. Biomass and Bioenergy 30: 1001–1010.

Scott, D.A.; Stagg, R.H.; Smith, M.A., Jr. 2006. A non-destructive method for quantifying small-diameter woody biomass in southern pine forests. p. 358, In: Connor, K.F. (ed.) Proc. of the 13th Biennial Southern Silvicultural Research Conference. Gen. Tech. Rep. SRS-GTR-92. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Stagg, R.H.; Scott, D.A. 2006. Understory growth and composition resulting from soil disturbances on the long-term soil productivity study sites in Mississippi. p. 358, In: Connor, K.F., (ed.) Proc. of the 13th Biennial Southern Silvicultural Research Conference. Gen. Tech. Rep. SRS-GTR-92. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Dean, T. Scott, A.; Newbold, R. 2005. An application of hierarchy theory to long-term sustainability. p. 349–350. In: Peterson, C.E.; Maguire, D.A. (eds.) Balancing ecosystem values: innovative experiments for sustainable forestry. Gen. Tech. Rep. PNW-GTR-635. USDA Forest Service Pacific Northwest Research Station, Portland, OR.

Eisenbies, M.H.; Burger, J.A.; Aust, W.M.; Patterson, S.C. 2005. Soil physical disturbance and logging residue effects on changes in soil productivity in five-year-old loblolly pine plantations. Soil Sci. Soc. Am. J. 69: 1833–1843.

Powers, R.F.; Scott, D.A.; Sanchez, F.G.; Voldseth, R.A.; Page-Dumroese, D.; Elioff, J.D.; Stone, D.M. 2005. The North American long-term soil productivity experiment: Findings from the first decade of research. For. Ecol. Manage. 220: 31–50.

Scott, D.A.; Sanchez, F.G. 2005. Long-term soil productivity of southern coastal plain pine forests. Agron. Abstr. 288-3 (CD). International Meeting of the American Society of Agronomy, Nov. 6–10, 2005, Salt Lake City, UT. American Society of Agronomy, Madison, WI.

Siegel-Issem, C.M.; Burger, J.A.; Powers, R.F.; Ponder, F.; Patterson, S.C. 2005. Seedling root growth as a function of soil density and water content. Soil Sci. Soc. Am. J. 69: 215–226.

Aust, W.M.; Blinn, C.R. 2004. Forestry best management practices for timber harvesting and site preparation in the eastern United States—an overview of water quality and productivity research during the past 20 years. Water Air Soil Poll. 4: 5–36.

Eisenbies, M.H. 2004. Loblolly pine and soil-site responses to harvesting disturbance and site preparation at stand closure. Ph.D. dissertation. Virginia Polytechnic and State University, Blacksburg.

Eisenbies, M.H.; Burger, J.A.; Aust, W.M.; Patterson, S.C. 2004. Loblolly pine response to wet-weather harvesting on wet flats after 5 years. Water Air Soil Poll. 4: 217–233.

Lister, T.W.; Burger, J.A.; Patterson, S.C. 2004. Role of vegetation in mitigating soil quality impacted by forest harvesting. Soil Sci. Soc. Am. J. 68: 263–271.

Miwa, M.; Aust, W.M.; Burger, J.A.; Patterson, S.C.; Carter, E.C. 2004. Wet weather timber harvesting and site preparation effects on coastal plain sites: a review. South. J. Appl. For. 28: 137–151.

Powers, R.F.; Sanchez, F.G.; Scott, D.A.; Page-Dumroese, D. 2004. The North American long-term soil productivity experiment: coast-to-coast findings from the first decade. p. 191–206, In: Sheppard, W.D.; Eskew, L.G. (eds.) Silviculture in special places: proceedings of the National Silviculture Workshop. Gen. Tech. Rep. RMRS-34. USDA Forest Service Southern Rocky Mountain Research Station, Ogden, UT.

Scott, D.A.; Tiarks, A.E.; Sanchez, F.G.; Elliott-Smith, M.L.; Stagg, R.H. 2004. Forest soil productivity on the southern long-term soil productivity sites at age 5. p. 372–377. In: Connor K.F. (ed.) Proceedings of the 12th Biennial Southern Silvicultural Research Conference. Gen. Tech. Rep. SRS-71. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Siegel-Issem, C.M.; Scott, D.A.; Burger, J.A. 2004. Spatial heterogeneity of soil strength, bulk density and tree volume response in compacted loblolly pine plantations. Agron. Abstr. p. 400: International Meeting of the American Society of Agronomy, Oct, 31–Nov. 4, 2004, Seattle, WA. American Society of Agronomy, Madison, WI.

Johnsen, K.H.; Teskey, B.; Samuelson, L.; Butnor, J.; Sanchez, F.; Sampson, D.; Maier C.; McKeand, S. 2003. Carbon sequestration in loblolly pine plantations: methods, limitations and research needs for estimating storage pools. pp. 373–381. In: Johnsen, K.; Rauscher, H. M.; Hubbard, W.G. (eds.) Southern Forest Science Conference Proceedings. November 26–28. Atlanta, GA.

Laiho, R.; Sanchez, F.; Tiarks, A.; Dougherty, P.; Trettin, C. 2003. Impacts of intensive forestry on early rotation trends in site carbon pools in the southeastern U.S. For. Ecol. Manage. 174: 177–189.

Li, Q.; Allen, H.L.; Wilson, C.A. 2003. Nitrogen mineralization dynamics following the establishment of a loblolly pine plantation. Can. J. For. Res. 33: 364–374.

Scott, D.A. 2003. Soil recovery from compaction with and without residue retention and weed control in loblolly pine stands. Agron. Abstr. International Meeting of the American Society of Agronomy, Nov. 1–6, 2003, Denver, CO. American Society of Agronomy, Madison, WI.

Burger, J.A. 2002. Soil and long-term site productivity values. p. 165–189. In: Richardson, J. et al. (eds.) Bioenergy from sustainable forestry—Guiding principles and practice. Kleuwer, Boston, MA.

Eisenbies, M.H.; Burger, J.A.; Xu, Y.J.; Patterson, S.C. 2002. Distribution of slash and litter after wet and dry site harvesting of loblolly pine plantations., p. 510–514. In: Outcalt, K.W. (ed.) Proceedings of the eleventh biennial southern silvicultural research conference. General Technical Report SRS-48. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Siegel-Issem, C.M. 2002. Forest productivity as a function of root growth opportunity. M.S. thesis. 148 p. Virginia Polytechnic and State University, Blacksburg.

Sword, M.A.; Tiarks, A.E. 2002. Local soils information needed to define the root zone in process models on the Gulf coastal plain. General Technical Report SRS-058. USDA Forest Service Southern Forest Research Station, Asheville, NC. 15 p.

Xu, Y.J.; Burger, J.A.; Aust, W.M.; Patterson, S.C.; Miwa, M.; Preston, D.P. 2002. Changes in surface water table depth and soil physical properties after harvest and establishment of loblolly pine in Atlantic Coastal Plain wetlands of South Carolina. Soil Till. Res. 63: 109–121.

Burger, J.A.; Scott, D.A. 2001. Soil interpretations for sustainable forest management in the Southeastern United States. p. 65–72, In: Boruvka, L. (ed.) Soil Science—Past, Present, and Future. Proceedings of the Joint Meeting of the Czech Society of Soil Science, and the Soil Science Society of America. Sept. 16–20, 2001, Prague, Czech Republic.

Duarte, N. 2001. Nitrogen form and availability measured with ion exchange resin in a loblolly pine stand on the Coastal Plain of North Carolina. M.S. thesis, 110 p. North Carolina State University, Raleigh.

Johnsen, K.H.; Wear, D.; Oren, R.; Teskey, R.O.; Sanchez, F.; Will, R.; Butnor, J.; Markewitz, D.; Richter, D.; Rials, T.; Allen, H.L.; Seiler, J.; Ellsworth, D.; Maier, C.; Katul, G.; Dougherty, P.M. 2001. Carbon sequestration via southern pine forestry. J. For. 99(4): 14–21.

Barnett, J.P.; Tiarks, A.E.; Sword, M.A. 2000. Sustaining Productivity of Planted Forests in the Gulf Coast Region. p. 76–85. In: Ning, Z.H.; Abdollahi, K.K. (eds.) Current stresses and potential vulnerabilities: Implications of global change for the Gulf Coast Region of the United States. Baton Rouge, La, Gulf Coast Regional Climate Change Assessment Program.

Kelting, D.L.; J.A. Burger, and S.C. Patterson. 2000. Early loblolly pine growth response to changes in the soil environment. NZ J. For. Sci. 30: 206–244.

Tiarks, A.; Smith-Elliott, M.; Stagg, R. 2000. Loblolly pine (pinus taeda) plantations in the subtropical southeastern United States. p. 101–103. In: Nambiar, E.K.S.; Tiarks, A.E.; Cossalter, C.; Ranger, J. (eds.) Site management and productivity in tropical plantation forests. Kerala, India, December 7–11, 1999, Center for International Forestry Research, Bogar, Indonesia.

Burger, J.A.; Kelting, D.L. 1999. Using soil quality indicators to assess forest stand management. For. Ecol. Manage. 122: 155–166.

Kelting, D.L. 1999. Timber harvesting and site preparation effects on soil quality for loblolly pine growing on the lower coastal plain of South Carolina. Ph.D. dissertation, 197 p. Virginia Polytechnic and State University, Blacksburg.

Kelting, D.L., Burger, J.A.; Patterson, S.C.; Aust, W.M.; Miwa, M. 1999. Soil quality assessment in domesticated forests: a southern pine example. For. Ecol. Manage. 122: 167–185.

Lister, T.W. 1999. Forest harvesting disturbance and site preparation effects on soil processes and vegetation in a young pine plantation. M.S. thesis, 104 p. Virginia Polytechnic and State University, Blacksburg.

Miwa, M. December 1999. Physical and Hydrologic Response of Wet Flats to Timber Harvest Disturbances. Ph.D. dissertation, 250 p. Virginia Polytechnic and State University, Blacksburg.

Tiarks, A.E. 1999. Nutrient management in pine forests. p. 1–6. In: Proceedings for the Fifteenth Annual ARK-LA-TEX Forestry Forum, March 9, 1999, Shreveport, LA.

Tiarks, A.; Klepzig, K.; Sanchez, F.; Lih, M.; Powell, J.; Buford, M. 1999. Roles of coarse woody debris in the loblolly pine ecosystem. p. 238–242. In: Haywood, J.D. (ed) Proceedings Tenth Biennial Southern Silviculture Research Conference. February 16–18, Shreveport, LA. Gen Tech Rep. SRS-30. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Walkinshaw, C.H.; Tiarks, A.E. 1998. Effects of soil compaction and organic matter removal on morphology of secondary roots of loblolly pine. p. 418–421. In: Waldrop, T.A. (ed). Proceedings of the Ninth Biennial Southern Silvicultural Research Conference; 1997 February 25–1997 February 27; Clemson, SC. General Technical Report SRS-20. USDA Forest Service, Southern Research Station, Asheville, NC.

Xu, Y.J.; Burger, J.A.; Aust, W.M.; Patterson, S.C. 1999. Recovery of hydroperiod after timber harvesting in a forested wetland. p. 282–287. In: Proceedings, Tenth Biennial Southern Silvicultural Research Conference. General Technical Report SRS-30. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Xu, Y.J.; Burger, J.A.; Aust, W.M.; Patterson, S.C. 1999. Responses of surface hydrology and early loblolly pine growth to soil disturbance and site preparation in a Lower Coastal Plain wetland. NZ J. For. Sci. 30: 250–265.

Aust, W.M.; Burger, J.A.; Carter, E.C.; Preston, D.P.; Patterson, S.C. 1998. Visually determined soil disturbance classes used as indices of forest harvesting disturbance. South. J. Appl. For. 22: 245–250.

Aust, W.M.; Burger, J.A.; McKee, W.H.; Scheerer, G.A.; Tippett, M.D. 1998. Bedding and fertilization ameliorate effects of designated wet-weather skid trails after four years for loblolly pine plantations. South. J. Appl. For. 22: 222–225.

Burger, J.A.; Kelting, D.L. 1998. Soil quality monitoring for assessing sustainable forest management. p. 17–52. In: Adams, M.B.; Ramakrishna, K.; Davidson, E.A. (eds.) Criteria and indicators of soil quality for sustainable forest productivity. Spec. Publ. 53, Soil Sci. Soc. Am., Madison, WI.

Carter, E.A.; Aust, W.M.; Burger, J.A. 1998. Soil strength, volumetric content, and soil roughness characteristics of a bedded wet pine flat. p. 401–405. In: Proceedings, Ninth Biennial Southern Silvicultural Research Conference. Clemson, SC. February 25–27, 1997. USDA Forest Service, Asheville, N.C.

Harms, W.; Aust, W.M.; Burger, J.A. 1998. Wet Flatwoods. Chapter 9. p. 421–444. In: Conner, W.; Messina, M. (eds.) Southern Forested Wetlands Ecology and Management. CRC Press - Lewis Publishers.

Miwa, M.; Aust, W.M.; Burger, J.A.; Patterson, S.C. 1998. Characterization of disturbed forest soils in the lower coastal plain of South Carolina. p. 379–385. In: Outcalt, K.W. (ed.) Proceedings, Ninth Biennial Southern Silvicultural Research Conference. Feb. 25–27, 1997. Clemson, SC. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Tiarks, A.E.; Buford, M.A.; Powers, R.F.; Ragus, J.F.; Page-Dumroese, D.S.; Ponder, F., Jr.; Stone, D.M. 1997. North American long-term soil productivity research program pp. 140–147. In: Communicating the Role of Silviculture in Managing the National Forests. Proceedings, National Silviculture Workshop, 1997 May 19–22; Warren, PA. Gen. Tech. Rep. NE-238. Radnor, PA: USDA Forest Servervice Northeastern Forest Experiment Station, Radnor, PA.

Burger, J.A. 1997. Conceptual framework for monitoring the impacts of intensive forest management on sustainable forestry, p. 147–156. In: Hakkila, P. (ed.) Forest management for bioenergy. The Finnish Forest Research Institute.

Waddell, W.C. 1997. The aquic conditions of seasonally wet forest soils. M.S. thesis. 189 p. Louisiana State University and Agricultural and Mechanical College, Baton Rouge, LA,

Carter, M.; Tiarks, A.; Buford, M.; Farrish, K.; Cooksey, T.; Foster, D.; Hill, G.; Zhou, M.; Dean, T.; Newbold, R.; Williams, R. 1996. Nutrient budgets for the seventeen locations of the LTSP and MPEQ studies in Pinus taeda. p. 71. In: Proceedings of the 14th North American Forest Biology workshop. Forest management impacts on ecosystem processes; 1996 June 16–1996 June 20; Quebec City, Canada. Quebec City, Canada: Universite Laval.

Eaton, R.J. 1996. Effects of organic matter removal, soil compaction, and competition control on collembola populations in a Pinus taeda plantation. Raleigh, NC: North Carolina State University. 112 p. M.S. thesis.

Preston, D.P. 1996. Harvesting effects on the hydrology of wet pine flats. M.S. thesis, 126 p. Virginia Polytechnic and State University, Blacksburg.

Hudnall, W.H.; Tiarks, A.E.; Waddell, W.C.; Patterson, W.B. 1995. Soil water relationships within the long-term forest management plots, USFS, Louisiana. p. 85–89. In: Selim, H.M.; Brown, W.H. (eds.) Proceedings, conference on environmental essues at the LSU Agricultural Center, July 24–25, 1995, Baton Rouge, LA. Louisiana State University, Baton Rouge, LA.

Powers, R.F.; Tiarks, A.E.; Burger, J.A.; Carter, M.C. 1996. Sustaining the productivity of planted forests. p. 97–134. In: Carter, M.C. (ed.) Proceedings, 35th Forestry Symposium: Growing Trees in a Greener World: Industrial Forestry in the 21st Century. School of Forestry, Wildlife and Fisheries, Louisiana State Univ., Baton Rouge, LA.

Buford, M.A.; Ragus, J.F.; Tiarks, A.E. 1995. Long-term soil productivity research in the South. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Region and Southern Research Station. [not paged]. Leaflet.

Hudnall, W.H.; Tiarks, A.E.; Waddell, W.C.; Patterson, W.B. 1995. Soil water relationships within the long-term forest management plots, USFS, Louisiana. p. 85–89. In: Selim, H.M.; Brown, W.H. (eds). Proceedings, Conference on Environmental Issues at the LSU Agricultural Center; 1995 July 24–1995 July 25; Louisiana State University, Baton Rouge.

Lankford, G.K. 1995. Effects of soil compaction and harvest removals on vegetation and soils in a loblolly pine plantation. MS thesis, 82 p. North Carolina State University, Raleigh.

Mellin, T.C. 1995. The effects of intensive forest management practices on the natural vegetative communities of loblolly pine plantations in North Carolina. MS thesis, 71 p. North Carolina State University, Raleigh.

Powers, R.F.; Tiarks, A.E.; Buford, M.A. 1995. Influence of site disturbance on fundamental productivity and soil processes in pine plantations of the U.S.: the “LTSP experiment.” p. 68–70. In: Gaskin, R.E.; Zabkiewicz, J.A. (comp.) Proceedings, Second International Conference on Forest Vegetation Management; 20–24 March, 1995: Rotorua, New Zealand. FRI Bull. 192. Forest Res. Inst., Rotorua, New Zealand; NZ.

Tiarks, A.E.; Hudnall, W.H.; Ragus, J.F.; Patterson, W.B. 1995. Effect of pine plantation harvesting and soil compaction on soil water and temperature regimes in a semitropical environment. p. 65–78. In: A. Schulte, and D. Ruhiyat, (eds.) Proceedings, International Congress on Soils of Tropical Forest Ecosystems, 3rd Conference on Forest Soils, (ISSS-AISS-IBG), Volume 3, Soil and Water Relationships; Oct. 29–Nov. 3, 1995, Samarinda, Indonesia. Mulawarman University Press, Samarinda, Indonesia.

Burger, M.A. June 1994. A wetland trafficability hazard index based on soil physical properties and site hydrology evaluations. MS thesis, 139 p. Virginia Polytechnic and State University, Blacksburg.

Scheerer, G.A. October 1994. Site preparation effectiveness in the amelioration of compaction and rutting damage on wetland sites of the South Carolina lower coastal plain. M.S. thesis, 132 p. Virginia Polytechnic and State University, Blacksburg.

Tiarks, A.E.; Hudnall, W.H.; Patterson, W.B. 1994. Soil compaction effects on forest management, productivity and soil water. p. 108–109. In: Proceedings, 15th World Congress of Soil Science; July 10–16, 1994, Acapulco, Mexico. International Society of Soil Science and Mexican Society of Soil Science, Acapulco, Mexico

Wilson, C.A. 1994. The effects of compaction and organic matter removal on nitrogen mineralization in a coastal plain soil of North Carolina. MS thesis, 31 p. North Carolina State University, Raleigh.

Solomon, S.C. 1993. Effects of compaction removal of forest floor litter on soil physical properties. MS thesis, 63 p. North Carolina Agricultural and Technical State University, Greensboro.

Tiarks, A.E.; Powers, R.F.; Alban, D.H.; Ruark, G.A.; Page-Dumroese, D.S. 1993. USFS long-term soil productivity: national research project. A USFS coop research program. p. 236–241. In: Kimble, J.M. (ed.) Proceedings of the Eighth International Soil Management Workshop: Utilization of soil survey information for sustainable land use; 1992 July 11–1992 July 24, Portland, OR. USDA Soil Conservation Service, Lincoln, NE.

Tippett, M.D. September 1992. Impacts of timber harvesting on soil physical properties in wetlands. MS thesis, 165 p. Virginia Polytechnic and State University, Blacksburg.

Tiarks, A.E.; Kimble, M.S.; Elliott-Smith, M.L. 1991. The first location of a national, long-term forest soil productivity study: methods of compaction and residue removal. p. 431–442. In: Coleman, S.S.; Neary, D.G. (eds.) Proceedings, Sixth Biennial Southern Silvicultural Research Conference, Oct. 30–Nov. 1, 1990, Memphis, TN. Gen. Tech. Rep. SE-70, Volume 1. USDA Forest Service Southern Forest Research Station, Asheville, NC.

Powers, R.F.; Alban, D.H.; Miller, R.E.; Tiarks, A.E.; Wells, C.G.; Avers, P.E.; Cline, R.G.; Fitzgerald, R.O.; Loftus, N.S., Jr. 1990. Sustaining site productivity in North America: problems and prospects. p. 49–79. In: Gessel, S.P.; Lacate, D.S.; Weetman, G.F.; Powers, R.F. (eds.) Sustained Productivity of Forest Soils. Proceedings, Seventh North American Forest Soils Conference. Vancouver, B.C. July 1988. Faculty of Forestry, Univ. British Columbia, Vancouver.