Scientists & Staff
- Developing site index curves for central Appalachian red spruce.
- Modeling growth and yield for red spruce and Appalachian Hardwoods, with emphasis on shade tolerant species.
- Examination of the effect of silvicultural treatment on tree grade.
Forest biometrics, Silviculture, Forest Disturbance, Energy Development Issues in Forestry.
Why This Research is ImportantGrowth and yield modeling is an important tool for consultants, land managers, and software developers with new models needing to be developed for Appalachian forests. Appalachian hardwoods are an important component of the area's hardwood forest products industry and the effects of silvicultural treatment on tree quality (tree grade) can further guide management's long term growing choices. Central Appalachian red spruce stands are endangered ecosystems in need of restoration.
- Virginia Polytechnic Institute and State University , Doctor Of Philosophy Forestry and Forest Products (Forest Biometrics), 2009
- Richard Stockton College of New Jersey, B.S. Environmental Science, 1994
- Research Forester, USDA Forest Service 2010 - Current
- Mathematical Statistician, USDA Forest Service 2000 - 2009
Featured Publications & Products
- Schuler, Thomas M.; Thomas-Van Gundy, Melissa; Brown, John P.; Wiedenbeck, Jan. 2017. Managing Appalachian hardwood stands using four management practices: 60-year results. Forest Ecology and Management. 387: 3-11. https://doi.org/10.1016/j.foreco.2016.08.019
- Wiedenbeck, Janice K.; Brown, John P.; Schuler, Thomas M.; Thomas-Van Gundy, Melissa. 2017. Tree-quality impacts associated with use of the shelterwood-fire technique in a central Appalachian forest. In: Kabrick, John M.; Dey, Daniel C.; Knapp, Benjamin O.; Larsen, David R.; Shifley, Stephen R.; Stelzer, Henry E., eds. Proceedings of the 20th Central Hardwood Forest Conference; 2016 March 28-April 1; Columbia, MO. General Technical Report NRS-P-167. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 146-156.
- Brown, John P. 2015. Spatial Allocation of Timber Product Output Roundwood Receipts. Forest Science
- Brown, John P.; Oderwald, Richard G. 2012. Sampling estimators of total mill receipts for use in timber product output studies. Canadian Journal of Forest Research. 42: 476-489.
- Knight, Kathleen S.; Brown, John P.; Long, Robert P. 2013. Factors affecting the survival of ash (Fraxinus spp.) trees infested by emerald ash borer (Agrilus planipennis). Biological Invasions. 15: 371-383.
- Brown, John; Lister, Andrew J.; Fajvan, Mary Ann; Ruefenacht, Bonnie; Mazzarella, Christine. 2012. Modeling forest ecosystem changes resulting from surface coal mining in West Virginia. In: McWilliams, Will; Roesch, Francis A. eds. 2012. Monitoring Across Borders: 2010 Joint Meeting of the Forest Inventory and Analysis (FIA) Symposium and the Southern Mensurationists. e-Gen. Tech. Rep. SRS-157. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 67-75.
- Brown, John; Wiedenbeck, Janice K.; Gazo, Rado; Yaussy, Daniel A. 2004. Silvicultural Treatment Effects on Hardwood Tree Quality on the Vinton Furnace Experimental Forest. 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: 56-65.
Publications & Products
- Brown, John P.; Westfall, James A. 2012. An evaluation of the properties of the variance estimator used by FIA. In: McWilliams, Will; Roesch, Francis A. eds. 2012. Monitoring Across Borders: 2010 Joint Meeting of the Forest Inventory and Analysis (FIA) Symposium and the Southern Mensurationists. e-Gen. Tech. Rep. SRS-157. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 53-58.
- Brown, John P.; Sendak, Paul E. 2006. Association of ring shake in eastern hemlock with tree attributes. Forest Products Journal 56(10):31-36
- Brown, John; Miller, Gary W.; Gottschalk, Kurt W. 2004. Effects of Alternative Thinning Treatments on Tree Grades at Three Upland Hardwood Sites in Kentucky and Ohio: 30 Year Results. 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: 502
- Wiedenbeck, Jan; Brown, John; Bennett, Neal. 2003. Crook and overlength in hardwood lumber:results from a 14-mill survey. Forest Products Journal. 53(5): 61-66.
- Brown, John W. 1993. Economics and agroforestry. In: Raynor, Bill; Bay, Roger R., technical coordinators. Proceedings of the workshop on research methodologies and applications for Pacific Island agroforestry; July 16-20, 1990; Kolonia, Pohnpei, Federated States of Micronesia. Gen. Tech. Rep. PSW-GTR-140. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 26-30
National Research Highlights
Analysis of 50-year records of harvests on the Fernow Experimental Forest in west Virginia by Forest Service scientists demonstrates that diameter-limit cutting is not a sustainable practice in regard to tree quality. In contrast, single-tree selection has not affected stand quality and is sustainable.
The quality of trees grown and harvested under various methods exhibits changing patterns over time. A Forest Service scientist studied three methods to determine the sustainability of the options over the long term. Although the number of trees harvested was initially significantly higher from both patch cutting and single tree selection, the percentage of trees cut from diameter-limit plots decreased over time whereas the patch cutting and single tree selection practices have increasing percentages. At close to fifty years, the practices have converged in percentages and suggest that the diameter practice is on an unsustainable curve while patch cutting and single tree selection are more sustainable choices.