The following articles are products of the research and outreach programs from the UFOR lab and its faculty, staff, and students.
- 2021
- Vulnerability of Street Trees in Upper Midwest Cities to Climate Change. Leslie Brandt, Gary Johnson, Eric North, Jack Faje, Annmarie Rutledge. Frontiers in Ecology and Evolution.
- Relationship of structural root depth on the formation of stem encircling roots and stem girdling roots: Implications on tree condition. Richard J. Hauer, Gary R. Johnson. Urban Forestry & Urban Greening. 60, 127031
- Understanding why young urban trees die can improve future success. Daniel J. Wattenhofer, Gary R. Johnson. Urban Forestry & Urban Greening. 64, 127247
- Suitability of a single imagery multispectral sensor for tree health analysis - Michael M. Bahe, Ryan L. Murphy, Matthew B. Russell, Joseph F. Knight, Gary R. Johnson. Urban Forestry & Urban Greening. 63, 127187
- 2020
- Predicting trunk flare diameter to prevent tree damage to infrastructure - Deborah R. Hilbert, Eric A. North, Richard J. Hauer, Andrew K. Koeser, Drew C. McLean, Robert J. Northropd, Michael Andreue, Stephani Parbs. Urban Forestry & Urban Greening. 49, 126645
- 2019
- Boulevard tree failures during wind loading events - Gary Johnson, Chad Giblin, Ryan Murphy, Eric North, Aaron Rendahl. Arboriculture & Urban Forestry. 45(6):259-269
- 2018
- Performance Metrics for Street and Park Trees in Urban Forests - Eric A. North, Anthony W. D'Amato, Matthew D. Russell. Journal of Forestry. 116(6):547-554
- An analysis of agreement between volunteer- and researcher-collected urban tree inventory data. Nick Bancks, Eric North, Gary Johnson. Arboriculture & Urban Forestry. 44(2):83-85
- 2017
- The influence of sidewalk replacement on urban street tree growth - Eric A. North, Anthony W. D'Amato, Matthew B. Russell, Gary R. Johnson. Urban Forestry & Urban Greening. 24:116-124
- Pruning cycles and storm damage: are young American elms failing prematurely? Chad P. Giblin. Proceedings of the American elm restoration workshop 2016; 2016 October 25-27; Lewis Center, OH. Gen. Tech. Rep. NRS-P-174. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 122-132
- 2016
- Conversion of Indole-3-Butyric Acid to Indole-3-Acetic Acid in Shoot Tissue of Hazelnut (Corylus) and Elm (Ulmus). Molly Kreiser, Chad Giblin, Ryan Murphy, Paul Fiesel, Lois Braun, Gary Johnson, Donald Wyse & Jerry D Cohen. Journal of Plant Growth Regulation. 35:710-721
- Effects of inoculation timing on symptom development in Ulmus americana L. Garrett L. Beier, Benjamin W. Held, Chad P. Giblin, and Robert A. Blanchette. Proceedings of the American elm restoration workshop 2016
- 2015
- Trunk flare diameter predictions as an infrastructure planning tool to reduce tree and sidewalk conflicts - Eric A. North, Gary R. Johnson, Thomas E. Burk. Urban Forestry & Urban Greening. 14(1):65-71
- 2011
- The Effects of Planting Depth on Windthrow, Stability, and Growth for Four Tree Species in Containers. Chad P. Giblin, Jeffrey H. Gillman, Gary R. Johnson, David Hanson, and Patrick J. Weicherding. 37(5):247-253
- Local Outcomes of Federal and State Urban & Community Forestry Programs. Richard J. Hauer, Gary R. Johnson, Michael A. Kilgore. Arboriculture & Urban Forestry. 37(4):152-159
- 2008
- State Urban and Community Forestry Program Funding, Technical Assistance, and Financial Assistance within the 50 United States. Richard J. Hauer, Gary R. Johnson. Arboriculture & Urban Forestry. 34(5):280-289
- Approaches Within the 50 United States to Meeting Federal Requirements for Urban and Community Forestry Assistance Programs. Richard J. Hauer, Gary R. Johnson. Arboriculture & Urban Forestry. 34(2):74-83.
- Dysfunctional root systems and brief landscape lives: stem girdling roots and the browning of our landscapes. Gary Johnson. Arnoldia 66(2).
- 2007
- Geospatial methods provide timely and comprehensive urban forest information. Kathleen T. Ward and Gary R. Johnson. Urban Forestry & Urban Greening 6(1):15-22
- Mechanical Root-Disruption Practices and Their Effect on Circling Roots of Pot-Bound Tilia Cordata Mill. and Salix Alba L. ‘Niobe’. Patrick J. Weicherding, Chad P. Giblin, Jeffrey H. Gillman, David L. Hanson, and Gary R. Johnson. Arboriculture & Urban Forestry. 33(1):43-47
- 2006
- Substrate pH Suppression Using Incorporated Sulfur-based Compounds in Nursery Container Production. Chad P. Giblin, Jeffery H. Gillman. Journal of Environmental Horticulture. 24(3):119-123
- 2005
- The effects of soil depth on the long-term health and frequency of storm damage to trees in the Upper Midwest. Chad Giblin, Jeff Gillman, D. Hanson, Gary R. Johnson, Patrick Weicherding. Trees and Planting: Getting the Roots Right, The Morton Arboretum, Lisle, IL (2005), pp. 33-39
- Root Pruning Techniques Do Not Help Pot-bound Plants. Jeffery H. Gillman, Chad P. Giblin, Gary R. Johnson. American Society for Horticultural Science. 40(4)
- 2001
- Growth Regulators and Irrigation Mitigate Competition Between Intercropped Grass and Fraxinus nigra 'Fallgold'. Jeffery H. Gillman, Chad P. Giblin. Journal of Environmental Horticulture. 19(4):195-198
- 1995
- Tree Care Advisor: A voluntary stewardship program. Gary R. Johnson. Journal of Arboriculture. 21(1):25-32
- 1994
- A child's view of the urban forest. Gary Johnson, Janette Monear. Journal of Arboriculture. 20(6):336-340