“Hydrology and water quality of headwater streams in the Pacific Northwest: The state of our understanding.” Invited keynote presentation at Symposium on Science and Management of Headwater Streams in the Pacific Northwest, Corvallis, Oregon, November 2005.

“The ‘timeless field experiment.’ Can we design studies that will endure?” Invited presentation (co-author with R.F. Powers) at IUFRO World Congress, Brisbane, Australia, August 2005.

“Assessing environmental sustainability of silvicultural systems for woody bioenergy production: What have we learned?” Invited presentation at International Workshop on Multiple Benefits from Sustainable Bioenergy Systems, IEA Tasks 30 and 31, Perth, Australia, August 2005.

"Fire effects on soils and watershed processes." Invited presentation at Creating Fire Resilient Landscapes: Improving our understanding and application Conference, Medford, Oregon, March 2004.

“Impacts of intensive plantation management on soil and water.” Invited presentation at Symposium on Intensive Plantation Forestry in the Pacific Northwest: Assessment of future potential and economic, environmental, and social implications, Portland, Oregon, January 2004.

“Riparian forest management: Impacts on sediments dynamics in headwater catchments of North Central Mississippi.” Presented to Forest and Range Soils Division, American Society of Agronomy Annual Meeting, Denver, Colorado, November 2003. 

“Effects of soil and climatic factors on Douglas-fir growth responses to woody debris removal and competing vegetation control.” Invited presentation to Annual Winter Meeting, Northwest Forest Soils Research Council, Federal Way, Washington, January 2003.

“Assessing soil quality in our western forests: Where do we go from here?” Invited presentation at Soil Quality Symposium, American Society of Agronomy Annual Meeting, Indianapolis, Indiana, November 2002.

“Understanding how extremes influence water quality: Experience from forest watersheds.” Presented at Annual Convention of American Institute of Hydrology, Portland, Oregon, October 2002. 

“Forestry SMZ Effectiveness in the Sand Clay Hills of Mississippi: Early Indications.” Presented at Forestry Best Management Practices Research Symposium, Atlanta, Georgia, April 2002. 

“Research needs for water quality.” Invited presentation at AFPA/NASF Water Quality Workshop, New Orleans, Louisiana, April 2001. 

“Harvest residue management across a fertility gradient in New Zealand: Relationships between forest floor properties and radiata pine growth.” Presented to Forest and Range Soils Division, American Society of Agronomy Annual Meeting, Minneapolis, Minnesota, November 2000. 

“Role of hydrologic and edaphic functions in hardwood bottomland restoration.” Invited presentation at Conference on Sustainability of Wetlands and Water Resources, Oxford, Mississippi, May 2000. 

“Bottomland hardwood restoration in the Lower Mississippi Alluvial Valley.”  Invited training session at NRCS Forestry, Wetlands, and Wildlife Technology Workshop, Vicksburg, Mississippi, May 2000. 

“Bottomland hardwood restoration in the Lower Mississippi Alluvial Valley.”  Invited training workshop presented to Ducks Unlimited, Jackson, Mississippi, March 2000. 

“Soil quality as an indicator of hardwood bottomland restoration.” Presented to Forest and Range Soils Division, American Society of Agronomy Annual Meeting, Salt Lake City, Utah, November 1999. 

“The influence of water on forestry practices.” Invited presentation at Mississippi Farm Bureau Federation 1999 Summer Commodity Conference, Jackson, Mississippi, July 1999. 

“Reforestation of agricultural lands in the Mississippi Alluvial Valley: The state of our understanding.” Invited keynote presentation at Symposium on Ecology and Management of Bottomland Hardwood Systems: The State of our Understanding, Memphis, Tennessee, March 1999. 

“New Zealand: land of the long white cloud.” Invited presentation at Loblolly Chapter Meeting, Mississippi Society of American Foresters, Starkville, Mississippi, October 1998. 

“Sustainable forestry trials on the North Island: recent revelations.: Invited presentation at New Zealand Forest Site Management Cooperative Technical/Business Meeting, Nelson, New Zealand, May 1998. 

“Indices of soil quality: physical and chemical properties.” Invited keynote presentation at Ninth North American Forest Soils Conference, Tahoe City, California, August 1998.

Recent and upcoming presentations by Graduate Students

McFarlane, K, S. Schoenholtz and R. Powers. Influence of silvicultural practices on soil carbon quality in Ponderosa pine plantations long a productivity gradient in northern California. Poster presentation at the 2nd International Conference on Mechanisms of Organic Matter Stabilization and Destabilization in Soils, Asilomar, CA, October 9-13, 2005. 

Floyd, W.C., S.H. Schoenholtz, S.M. Griffith, P.J. Wigington, Jr., J.J. Steiner. 2005. Presentation: Seasonal Relationships between dissolved nitrogen, landuse/landcover and poorly drained soils at multiple spatial scales in the Calapooia River Watershed, Oregon, USA. AWRA Specialty Conference: Institutions for Sustainable Watershed Management: Reconciling Physical and Management Ecology in the Asia-Pacific. June 2005.

McFarlane, K, S. Schoenholtz and R. Powers. Belowground carbon sequestration in fertilized and herbicide treated ponderosa pine plantations along a site quality gradient in northern California. Poster presentation at the Soil Science society of America Annual Meeting, Division S-7, Seattle, WA.  October 31-November 4, 2004.

McFarlane, K, S. Schoenholtz and R. Powers. Effects of intensive plantation management on belowground carbon storage and distribution. Poster presentation at the Productivity of Western Forests: A Forest Products Focus Conference, Kamilche, WA.  September 20-23, 2004.

Meehan, N. A., Schoenholtz, S.H., and T.B. Harrington. “Early Soil Responses to Post-Harvest Woody Debris Manipulation and Competing Vegetation Control in Western Oregon and Washington.” Poster presentation at the Soil Science society of America Annual Meeting, Division S-7, Seattle, WA.  October 31-November 4, 2004.

Meehan, N. A., Schoenholtz, S.H., and T.B. Harrington. "Initial responses of decomposition and nitrogen mineralization to woody debris manipulation and competing vegetation control in intensively-managed Douglas-fir plantations. " Poster presentation at the Productivity of Western Forests: A Forest Products Focus Conference, Kamilche, WA.  September 20-23, 2004.

Floyd, W.C., S. H. Schoenholtz, S.M. Griffith, P.J. Wigington, Jr., J.J. Steiner. “Relationships Between Dissolved Nitrogen and Landuse/Landcover at Two Spatial Scales in the Calapooia River Watershed, Oregon”.  Presented at the American Water Resources Association Conference- Riparian Ecosystems and Buffers: Multi-scale Structure, Function, and Management, June 28-30, 2004. Olympic Valley, CA

Schoenholtz, S., A.E. Skaugset, and R. Keim.  "Matching Form to Function in Forestry Riparian Buffer Zones" Presented at American Geophysical Union, San Francisco, California, December 8-12, 2003.

Luecker, T.A., S. Schoenholtz, and E. Dibble. “Substrate and invertebrate relations in small southern headwater streams.” Poster presentation at the American Water Resources Association, San Diego, California, November 2-5 2003.

McFarlane, K. and R. Yanai.  “Measuring nutrient uptake by Engelmann spruce and sub alpine fir at two Colorado Rocky Mountain Forests.” Poster presentation at the Soil Science Society of America Annual Meeting, Denver, Colorado, November 2-6, 2003. 

Smith, D.D., S. Schoenholtz, and L. Dent.  “Contributions of Riparian Vegetation and stream morphology to headwater stream temperature in the Oregon Coast Range.” Poster presentation at the American Water Resources Association, San Diego, California, November 2-5 2003.