Chris LeDoux
Title: Industrial Engineer
Unit: Ecology and Management of Invasive Species and Forest Ecosystems
Address: Northern Research Station
180 Canfield St.
Morgantown, WV 26505
Phone: 304-285-1572
E-mail: Contact Chris LeDoux
Jump to Publications
Education
- PhD, Forest Engineering/Industrial Engineering/Operations Research, Oregon State University
- MS, Forest Engineering/Statistics, Oregon State University
- BS, Forest Management/Computer Science, University of Idaho
Civic & Professional Affiliations
- Adjunct Professor – Dept of Industrial & Management Systems Engineering, West Virginia Univ.
- Xi Sigma Pi Honorary
- Forest Resources Association
- Council of Forest Engineering
- American Society of Industrial Engineers
- IUFRO Harvesting Group
- NFS Region 8 and 9 Planning Team
- American Forests Association
- The Nature Conservancy
- National Arbor Day Foundation
- National Hardwood Lumber Association
- American Society of Agricultural Engineers
- Society of American Foresters
Current Research
Current research specifically focuses on the lack of synthesis/integration of the forest operations process for their selection and implementation to improve intermediate cuttings and structural retention harvests for Eastern hardwoods.
Why is This Important
Society is increasingly demanding more of forests for wood products (veneer, sawlogs, pulpwood, fuelwood, biomass for energy, etc.) and ecological values (forest biodiversity, fish and game, water quality, continual ground cover, etc.). Thus, managers need better information about the operational costs to assess the tradeoffs involved in managing for ecological values. The research in this area could also improve guidelines by identifying how to minimize economic and silvicultural costs of any type of intermediate cutting or structural retention, at any level.
Future Research
Future work will continue to use engineering economics to assess/integrate the opportunity/capital recovery costs of managing/not managing streamside management/riparian buffer zones, patch/structural retention treatments, meeting old growth/late succession objectives, and addressing the economic, social, and environmental impacts of using wood for energy in the Northeast. An exciting emerging area is that of dealing with all aspects of invasive organism's impacts on forests. Future work in this area will focus on a complete systems approach for the tools and techniques to control invasive species, safety considerations, cost analysis, and the opportunity/capital recovery costs and benefits associated with invasive species prevention and control or the lack of such.
Featured Publications
- LeDoux, Chris B. 2011. Harvesting systems for the northern forest hardwoods. Gen. Tech. Rep. NRS-91. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 65 p.
- Brooks, John R.; Wang, Jingxin; LeDoux, Chris. 2011. Thinning strategies to increase the regional availability of oak timber in the Mid-Appalachian Region. In: Fei, Songlin; Lhotka, John M.; Stringer, Jeffrey W.; Gottschalk, Kurt W.; Miller, Gary W., eds. Proceedings, 17th central hardwood forest conference; 2010 April 5-7; Lexington, KY; Gen. Tech. Rep. NRS-P-78. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 2-9.
- LeDoux, Chris B. 2010. Mechanized systems for harvesting eastern hardwoods. Gen. Tech. Rep. NRS-69. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 13 p.
- Wang, Jingxin; Liu, Jingang; LeDoux, Chris B. 2009. A three-dimensional bucking system for optimal bucking of Central Appalachian hardwoods. International Journal of Forest Engineering. 20(2): 26-35.
- LeDoux, Chris B.; Wilkerson, Ethel. 2008. A method for quantifying and comparing the costs and benefits of alternative riparian zone buffer widths. In: Jacobs, Douglass F.; Michler, Charles H., eds. 2008. Proceedings, 16th Central Hardwood Forest Conference; 2008 April 8-9; West Lafayette, IN. Gen. Tech. Rep. NRS-P-24. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 275-289.
Additional
Online Publications
- LeDoux, Chris B.; Wilkerson, Ethel. 2008. Assessing the ecological benefits and opportunity costs of alternative stream management zone widths. In: Deal, R.L., tech. ed. Integrated restoration of forested ecosystems to achieve multiresource benefits: proceedings of the 2007 national silviculture workshop; 2007 May 7-10; Ketchikan, AK. Gen. Tech. Rep. PNW-733. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 193-209.
- LeDoux, Chris B.; Wilkerson, Ethel. 2008. Assessing the ecological benefits and opportunity costs of alternative stream management zone widths for eastern hardwoods. In: Deal, R.L., tech. ed. Integrated restoration of forested ecosystems to achieve multiresource benefits: proceedings of the 2007 national silviculture workshop; 2007 May 7-10; Ketchikan, AK. Gen. Tech. Rep. PNW-733. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 193-209.
- LeDoux, Chris B.; Miller, Gary W. 2008. Exploring the optimal economic timing for crop tree release treatments in hardwoods: results from simulation. In: Jacobs, Douglass F.; Michler, Charles H., eds. 2008. Proceedings, 16th Central Hardwood Forest Conference; 2008 April 8-9; West Lafayette, IN. Gen. Tech. Rep. NRS-P-24. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 265-274.
- Wang, Jingxin; LeDoux, Chris B.; Edwards, Pam. 2007. Changes in soil bulk density resulting from construction and conventional cable skidding using preplanned skid trails. Northern Journal of Applied Forestry. 24(1): 5-8.
- LeDoux, Chris B.; Wilkerson, Ethel. 2006. A case study assessing opportunity costs and ecological benefits of streamside management zones and logging systems for eastern hardwood forests. Res. Pap. NRS-1. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 16 p.
- LeDoux, Chris. 2006. A decision algorithm for determining safe clearing limits for the construction of skid roads. In: Eastern CANUSA conference handbook. Forest science across the borders; 2006 October 19-21; Quebec, Canada: 96-99.
- Li, Yaoxiang; LeDoux, Chris B.; Wang, Jingxin. 2006. An economic assessment of implementing streamside management zones in central Appalachian hardwood forests. Forest Products Journal 56(10):73-79
- LeDoux, Chris B. 2006. Assessing the opportunity cost of implementing streamside management zone guidelines in eastern hardwood forests. Forest Products Journal 56(6):40-44
- Wang, Jingxin; LeDoux, Chris; Vanderberg, Michael; Yaoxiang, Li. 2006. Effects of soil compaction on residual stand growth in central Appalachian hardwood forest: a preliminary case study. In: Chung, Woodam; Han, Han-Sup, eds. Proceedings of the 29th council on forest engineering conference; 2006 July 30-August 2; Coeur d'Alene, ID. [Place of publication unknown]: Council on Forest Engineering: 333-341.
- LeDoux, Chris B.; Whitman, Andrew. 2006. Estimating the capital recovery costs of alternative patch retention treatments in eastern hardwoods. International Journal of Forest Engineering. 17(1):21-30.
- Wang, Jingxin; LeDoux, Chris B.; Li, Yaoxiang. 2005. Simulating cut-to-length harvesting operations in Appalachian hardwoods. International Journal of Forest Engineering. 16(2): 11-27.
- Wang, Jingxin; LeDoux, Chris B.; Edwards, Pam; Jones, Mark. 2005. Soil bulk density changes caused by mechanized harvesting: A case study in central Appalachia. Forest Products Journal. 55(11): 37-40.
- LeDoux, Chris B. 2004. Determining Safe Clearing Limits for Skid Road/Trail Construction. In: Yaussy, Daniel A.; Hix, David M.; Long, Robert P.; Goebel, P. Charles, eds. Proceedings, 14th Central Hardwood Forest Conference; 2004 March 16-19; Wooster, OH. Gen. Tech. Rep. NE-316. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station: 148-153.
- LeDoux, Chris B. 2004. Estimating the capital recovery costs of managing for old growth forests. In: Bennett, Karen P., tech. coord. The 6th eastern old growth forest conference. Moving toward sustainable forestry: lessons from old growth forests; 2004 September 23-26; Moultonborough, NH. University of New Hampshire Cooperative Extension Natural Resource Network Report. UNV Cooperative Extention, Durham, NH: 31.
- Wang, Jingxin; LeDoux, Chris B.; McNeel, Joseph. 2004. Optimal tree-stem bucking of northeastern species of China. Forest Products Journal 54(2):45-52
- LeDoux, Chris B.; Gopalakrishnan, B.; Pabba, R. S. 2003. An expert system for estimating production rates and costs for hardwood group-selection harvests. In: Van Sambeek, J. W.; Dawson, Jeffery O.; Ponder Jr., Felix; Loewenstein, Edward F.; Fralish, James S., eds. Proceedings of the 13th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-234. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station: 390-396
- Wang, Jingxin; LeDoux, Chris B. 2003. Estimating and validating ground-based timber harvesting production through computer simulation. Forest Science. 49(1): 64-76.
- Wang, Jingxin; LeDoux, Chris B.; Li, Yaoxiang. 2003. Modeling and simulating two cut-to-length harvesting systems in central Appalachian hardwoods. In: Proceedings of the 26th Annual Meeting of Council on Forest Engineering. Forest operations among competing forest users; 2003 September 7-11; Bar Habor, ME; Corvalis, OR: Council of Forest Engineers. 1-5
- Wang, Jingxin; LeDoux, Chris B.; Wang, Lihai. 2003. Modeling and validating the grabbing forces of hydraulic log grapples used in forest operations. International Journal of Forest Engineering. 16(1): 77-85.
- LoDoux, Chris B. 2002. Assessing the feasibility and profitability of cut-to-length harvests in eastern hardwoods. In: Wagner, Robert G., comp. Eastern CANUSA forest science conference proceedings; 2002 October 19-20; Orono ME. University of Maine, University of New Brunswick: 53. Abstract.
- LeDoux, Chris B.; Huyler, Niel K. 2001. Comparison of two cut-to-length harvesting systems operating in eastern hardwoods. International Journal of Forest Engineering. 12(1): 53-59.
- Wang, Jingxin; LeDoux, Chris B. 2001. Modeling ground-based timber harvesting systems using computer simulation. In: Proceedings of the 23rd annual meeting of the council on forest engineering; 2000 September 11-13; Kelowna, B.C. Corvalis, OR: 1-7.
- LeDoux, Chris B.; Sendak, Paul E.; McWilliams, William H.; Huyler, Neil; Malecek, Thomas; Muzzey, Worthen; Jones, Toni. 2001. Timber supply and demand assessment of the Green and White Mountain National Forests' market area. Gen. Tech. Rep. NE-280. Newtown Square, PA: Northeastern Research Station. 19 p.
- LeDoux, Chris B.; Huyler, Neil K. 2000. Cost comparisons for three harvesting systems operating in northern hardwood stands. Res. Pap. NE-715. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 4 p.
- LeDoux, Chris B. 2000. Matching skidder size to wood harvested to increase hardwood fiber availability: a case study. Forest Products Journal 50(10):86-90
- Hassler, Curt C.; Grushecky, Shawn T.; LeDoux, Chris B. 2000. The effects of group selection harvest size on logging productivity. Nouthern Journal of Applied Forestry 17(2):51-56
- LeDoux, Chris B. 1999. An integrated approach for determining the size of hardwood group-selection openings. Forest Products Journal 49(3):34-37
- LeDoux, Chris B. 1999. Harvesting strategies for increasing the availability and quality of hardwood fiber. In: Proceedings 12th cebtral hardwood conference; 1999 February 28-March 2; Lexington, KY; U.S. Department of Agriculture, Forest Service, Southern Research Station. 137-140.
- Huyler, Neil K.; LeDoux, Chris. 1999. Performance of a cut-to-length harvester in a single-tree and group selection cut. Res. Pap. NE-711. Radnor, PA. U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 6 p.
- LeDoux, C. B.; Gopalakrishnan, B.; Pabba, R. S. 1998. THINEX - an expert system for estimating forest harvesting productivity and cost. SPIE 3517:262-272
- Huyler, Neil K.; LeDoux, Chris B. 1997. Cycle-time equation for the Koller K300 cable yarder operating on steep slopes in the Northeast. Res. Pap. NE-705. Radnor, PA: U.S. Department of Agriculture, Forest Service. Northeastern Forest Experiment Station. 4 p.
- LeDoux, Chris B. 1997. Evaluating timber harvesting impacts on wildlife habitat suitability using FOREX. In: Pallardy, Stephen G.; Cecich, Robert A.; Garrett, H. Gene; Johnson, Paul S., eds. Proceedings of the 11th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-188. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 26-35
- LeDoux, Chris B. 1997. Use of expert systems for integrated silvicultural planning. In: Communicating the role of silviculture in managing the national forests: Proceedings of the National Silviculture Workshop. 1997 May 19-22; Warren, PA.: Gen. Tech. Rep. NE-238. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 90-95.
- Huyler, Neil K.; LeDoux, Chris B. 1997. Yarding cost for the Koller K300 cable yarder: results from field trials and simulations. The Northern Journal of Applied Forestry. 14(1): 5-9.
- Worthington, Virginia E.; LeDoux, Chris B.; McWilliams, William H.; Sloan, Hank; Jones, Toni. 1996. Methodology for assessing current timber supplies and product demands. Gen. Tech. Rep. NE-226. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 25 p.
- LeDoux, Chris B.; May, Dennis M.; Johnson, Tony; Widmann, Richard H. 1995. Assessing the feasibility and profitability of cable logging in southern upland hardwood forests. Southern Journal of Applied forestry. 19(3): 97-102.
- Baumgras, John E.; Miller, Gary W.; LeDoux, Chris B. 1995. Economics of hardwood silviculture using skyline and conventional logging. In: Lowery, G.; Meyer, D., eds. Proceedings of the 23rd annual hardwood symposium, advances in hardwood utilization: following profitability from the woods through rough dimension; 1995 May 17-20; Cashiers, NC. Memphis, TN: National Hardwood Lumber Association: 5-17.
- LeDoux, Chris B.; Gopalakrishnan, B.; Lankalapalli, K. 1995. FOREX - an expert system for managing even-aged upland oak forests on steep terrain. In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 474-480
- Baumgras, John E.; LeDoux, Chris B. 1995. Hardwood silviculture and skyline yarding on steep slopes: economic and environmental impacts. In: Gottschalk, Kurt W.; Fosbroke, Sandra L. C., ed. Proceedings, 10th Central Hardwood Forest Conference; 1995 March 5-8; Morgantown, WV.: Gen. Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 463-473
- Huyler, Neil K.; Aiken, George D.; LeDoux, Chris B. 1994. Residual stand damage survey for three small tractors used in harvesting northern hardwoods. In: Proceedings of the meeting on advanced technology in forest operations: applied ecology in action. 17th annual council on forest engineering meeting, Department of Forest Engineering, Oregon State University, Portland/Corvallis, OR. July 24-29, 173-183.
- Baumgras, John E.; Hassler, Curt C.; LeDoux, Chris B. 1993. Estimating and validating harvesting system production through computer simulation. Forest Products Journal 43(11/12):65-71
- Baumgras, J. E.; LeDoux, C. B.; Sherar, J. R. 1993. Harvesting costs and environmental impacts associated with skyline yarding shelterwood harvests and thinning in Appalachian hardwoods. In: Foresters together: meeting tomorrow's challenges; Proceedings of the 1993 Society of American Foresters, National convention: Indianapolis, IN; November 7-10: Bethesda, MD. 579-580.
- LeDoux, Chris B.; Erickson, Michael D.; Hassler, Curt C. 1993. Production rates and costs of group-selection harvests with ground-based logging system. In: Gillespie, Andrew R.; Parker, George R.; Pope, Phillip E.; Rink, George: eds. Proceedings of the 9th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-161. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 363-372
- May, Dennis M.; LeDoux, Chris B. 1992. Assessing timber availability in upland Hardwood Forests. Southern Journal of Applied Forestry. 16(2): 82-88.
- Baumgras, Dr. John E.; LeDoux, Dr. Chris B. 1992. Computer software to estimate timber harvesting system production, cost, and revenue. The Compiler 10(4):28-32
- Layton, Deborah, A.; LeDoux, Chris 0.; Hassler, Curt C. 1992. Cost estimators for construction of forest roads in the central Appalachians. Res. Pap. NE-665. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4 p.
- LeDoux, Chris B.; Huyler, Neil K. 1992. Cycle-time equations for five small tractors operating in low-volume small-diameter hardwood stands. Res. Pap. NE-664. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 6 p.
- Erickson, Michael D.; Hassler, Curt C.; LeDoux, Chris B. 1992. Economic comparisons of haul road construction versus forwarding versus longer skid distances. In: 1992 international winter meeting, American Society of Agricultural Engineers. Paper No. 92-7513. Nashville, TN: St. Joseph, MI.
- Huyler, N.; LeDoux, C.B. 1991. A comparison of small tractors for thinning central hardwoods. In: McCormick, Larry H.; Gottschalk, Kurt W., eds. Proceedings, 8th Central Hardwood Forest Conference; 1991 March 4-6; University Park, PA. Gen. Tech. Rep. NE-148. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 92-104.
- Erickson, Michael D.; Hassler, Curt C.; LeDoux, Chris B. 1991. Felling and skidding cost estimates for thinnings to reduce gypsy moth impacts. In: McNeel, J. F.; Andersson, Bjorn, eds. Forestry operations in the 1990's; challenges and solutions, Proceedings of the 14th annual meeting of the Council on Forest Engineering, July 22-25, 1991: Nanaimo, British Columbia, CA. 105-110.
- Baumgras, J.E.; LeDoux, C.B. 1991. Integrating forest growth and harvesting cost models to improve forest management planning. In: McCormick, Larry H.; Gottschalk, Kurt W., eds. Proceedings, 8th Central Hardwood Forest Conference; 1991 March 4-6; University Park, PA. Gen. Tech. Rep. NE-148. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 120-131.
- LeDoux, Chris B.; Baumgras, John E. 1991. Interdisciplinary research can provide information for the harvesting challenges of the 1990's. In: McNeel, J. F.; Andersson, Bjorn, eds., Forestry operations in the 1990's; challenges and solutions, Proceedings of the 14th annual meeting of the Council on Forest Engineering, July 22-25, 1991: Nanaimo, British Columbia, CA. 126-130.
- LeDoux, Chris B.; Baumgras, John E.; Sherar, James; Campbell, Tom. 1991. Production rates and costs of group selection harvests with a christy cable yarder. In: Stokes, Bryce J.; Rawlins, Cynthia L., eds. Forestry and environment...engineering solutions, The proceedings of the June 5-6, 1991 conference: American Society of Agricultural Engineers: St. Joseph, MI: 75-84.
- Erickson, Michael D.; Hassler, Curt C.; LeDoux, Chris B. 1991. Productivity and cost estimators for conventional ground-based skidding on steep terrain using preplanned skid roads. In: McNeel, J. F.; Andersson, Bjorn, eds. Forestry operations in the 1990's; challenges and solutions, Proceedings of the 14th annual meeting of the Council of Forest Engineers, July 22-25, 1991: Nanaimo, British Columbia, CA. 92-96.
- Erickson, Michael D.; Hassler, Curt C.; LeDoux, Chris B. 1991. Silvicultural treatments and logging costs for minimizing gypsy moth impacts. In: The 1991 international winter meeting of the American Society of Agricultural Engineers, December 17-20, 1991: Chicago, IL: St. Joseph, MI: 1-15.
- LeDoux, C.B.; Baumgras, J.E. 1991. The interactive impact of forest site and stand attributes and logging technology on stand management. In: McCormick, Larry H.; Gottschalk, Kurt W., eds. Proceedings, 8th Central Hardwood Forest Conference; 1991 March 4-6; University Park, PA. Gen. Tech. Rep. NE-148. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 148-156.
- Baumgras, John E.; LeDoux, Chris B. 1990. Applications of harvesting system simulation to timber management and utilization analyses. In: Proceedings of the council on forest engineering:13th annual meeting; 1990 August 12-16; Outer Banks, NC. 175-182.
- LeDoux, Chris B.; Baumgras, John E.; Miyata, Edwin S. 1990. Cost of wetland protection using a Christy cable yarder. ASAE paper 90-7573. St. Joseph, MI: American Society of Agricultural Engineers. 4-12.
- LeDoux, Chris B.; Baumgras, John E. 1990. Cost of wetland protection using cable logging systems. In: Proceedings of the council on forest engineering: 13th annual meeting; 1990 August 12-16; Outer Banks, NC. 38-43.
- LeDoux, Chris B. 1990. Determining the economic feasibility of salvaging gypsy moth-killed hardwoods. Forest Products Journal 40(5):43-46
- LeDoux, Chris B. 1989. A stump-to-truck cost estimating program for cable logging young-growth Douglas-fir. The Compiler 7(1):9-10
- LeDoux, Chris B.; Baumgras, John E. 1989. Development of regional stump-to-mill logging cost estimators. In: Stokes, Bryce J., ed. Proceedings of the southern regional council on forest engineering; 1989 May 3-4; Auburn University, AL; Auburn, AL: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station.
- Baumgras, John E.; LeDoux, Chris B. 1989. Impact of product mix and markets on the economic feasibility of hardwood thinning. In: Proceedings of the seventh central hardwood conference; GTR NC-132; U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station. 185-189
- LeDoux, Chris B.; Baumgras, John E.; Selbe, R. Bryan. 1989. PROFIT-PC: a program for estimating maximum net revenue from multiproduct harvests in Appalachian hardwoods. The Compiler 7(4):27-32
- Baumgras, John E.; LeDoux, Chris B. 1989. Production analysis of two tree-bucking and product-sorting methods for hardwoods. In: Stokes, Bryce J., ed. Proceedings of the Southern Regional Council on Forest Engineering; 1989 May 3-4; Auburn University, AL. Auburn, AL: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 88-96
- Sherar, James R.; LeDoux, Chris B. 1989. Shift level analysis of cable yarder availability, utilization, and productive time. In: Proceedings of the 12th annual council on forest engineering; 1989 August 27-30; Coeur d' Alene, ID. Atlanta, GA: U.S. Department of Agriculture, Forest Service, Southern Region: 37-40.
- Huyler, Neil K.; LeDoux, Chris B. 1989. Small tractors for harvesting fuelwood in low-volume small-diameter hardwood stands. In: Proceedings of the 12th annual meeting of the council on forest engineering, Implementing techniques for successful forest operations; 1989 August 29-30; Coeur d'Alene, Idaho. 61-66
- LeDoux, Chris B.; Baumgras, John E. 1988. Analysis of harvesting opportunities for thinning eastern hardwoods on steep terrain. In: International mountain logging and pacific northwest skyline symposium; 1988 December 12-16; Portland, OR: Oregon State University: 93-96.
- LeDoux, Chris B. 1988. Contemporary computerized methods for logging planning. Medd. Nor. inst. skogforsk. 41(33):481-488
- Baumgras, John E.; LeDoux, Chris B. 1988. Impact of stand diameter and product markets on revenue gains from multiproduct harvesting. Forest Products Journal 38(7/8):57-63
- LeDoux, Chris B. 1988. Impact of timber production and transport costs on stand management. Res. Pap. NE-612. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5 p.
- Roise, Joseph B.; Chung, Joosang; LeDoux, Chris B. 1988. Optimal stocking of species by diameter class for even-aged mid-to-late rotation Appalachian hardwoods. In: The 1988 Symposium on Systems Analysis in Forest Resources; 1988 March 29-April 1; Asilomar Conference Center; Pacific Grove, California: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 166-172
- LeDoux, Chris B. 1987. A stump-to-mill timber production cost-estimating program for cable logging eastern hardwoods. The Compiler 5(4):33-34
- LeDoux, Chris B. 1987. Estimating yarding costs for the Clearwater yarder. Res. Pap. NE-609. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4 p.
- LeDoux, Chris B.; Kling, Bruce W.; Harou, Patrice A. 1987. Predicting bunching costs for the Radio Horse 9 winch. NE-RP-595. Broomall, PA: US. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7 p.
- LeDoux, Chris B. 1986. Applications of a stump-to-mill computer model to cable logging planning. In: Proceedings of the forestry microcomputer software symposium; 1986 June 30- July 2; Morgantown, WV. Morgantown, WV: West Virginia University: 395-401
- LeDoux, Chris B. 1986. Bucking logs to cable yarder capacity can decrease yarding costs and minimize wood wastage. Southern Journal of Applied Forestry. 10: 180-183.
- LeDoux, Chris B.; Starnes, Lawson W. 1986. Cable logging production rate equations for thinning young-growth Douglas-fir. Forest Products Journal 36(5):21-24
- Baumgras, John E.; LeDoux, Chris B. 1986. Costs of harvesting forest biomass on steep slopes with a small cable yarder: results from field trials and simulations. In: Smith, Wayne, H., ed. Biomass energy development; Plenum Publishing Corporation, 1986: 133-142.
- LeDoux, Chris B. 1986. MANAGE: A computer program to estimate costs and benefits associated with eastern hardwood management. Gen. Tech. Rep. NE-112. Broomall, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7 p.
- LeDoux, Chris B.; Fight, Roger D.; Ortman, Tom L. 1986. Stump-to-truck cable logging cost equations for young-growth douglas-fir. Western Journal of Applied Forestry. 1: 19-21.
- LeDoux, Chris B.; Peters, Penn A. 1985. Computer planning tools applied to a cable logging research study. In: Proceedings, Improving mountain logging planning, techniques and hardware, a joint symposium of the IUFRO, Mountain Logging Section and the Sixth Pacific Northwest Skyline Logging Symposium; 1985 May 8-11; Vancouver, B.C.: 51-55
- LeDoux, Chris B. 1985. Stump-to-mill timber production cost equations for cable logging eastern hardwoods. Res. Pap. NE-566. Broomall, PA:. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 6 P.
- LeDoux, Chris B. 1985. When is hardwood cable logging economical?. Journal of Forestry 83(5):295-298
- LeDoux, Chris B. 1984. Break-even zones for cable yarding by log size. In: Mountain logging symposium; Morgantown, WV. West Virginia University: p.310-322
- LeDoux, Chris B. 1984. Cable yarding residue after thinning young stands: a break-even simulation. Forest Products Journals 34(9):35-40
- Eli, Robert N.; LeDoux, Chris B.; Peters, Penn A. 1984. MAP - a mapping and analysis program for harvest planning. In: Peters, Penn A.; Luchok, John, eds. Mountain logging symposium proceedings; 1984 June 5-7; Morgantown, WV: West Virginia University. p.49-63
- LeDoux, Chris B. 1984. Production rates and costs of cable yarding wood residue from clearcut units. Forest Products Journal 34(4):55-60
- Peters, Penn A.; LeDoux, Chris B. 1984. Stream protection with small cable yarding systems. In: Water quality symposium; 1984 March 13-14; University Park, PA; Pennsylvania State University: 53-69.
Last Modified:
02/15/2012