| Frequency of prescribed burning in an upland oak forest determines soil and litter properties and alters the soil microbial community RJ Williams, SW Hallgren, GWT Wilson Forest Ecology and Management 265, 241-247, 2012 | 108 | 2012 |
| Drought and fire suppression lead to rapid forest composition change in a forest-prairie ecotone RD DeSantis, SW Hallgren, DW Stahle Forest Ecology and Management 261 (11), 1833-1840, 2011 | 108 | 2011 |
| Hydraulic and osmotic properties of spruce roots M Rüdinger, SW Hallgren, E Steudle, ED Schulze Journal of Experimental Botany 45 (10), 1413-1425, 1994 | 87 | 1994 |
| Long‐term directional changes in upland Quercus forests throughout Oklahoma, USA RD DeSantis, SW Hallgren, TB Lynch, JA Burton, MW Palmer Journal of Vegetation Science 21 (3), 606-618, 2010 | 73 | 2010 |
| Stress factors associated with forest decline in xeric oak forests of south-central United States DP Bendixsen, SW Hallgren, AE Frazier Forest Ecology and Management 347, 40-48, 2015 | 65 | 2015 |
| Understory response to varying fire frequencies after 20 years of prescribed burning in an upland oak forest JA Burton, SW Hallgren, SD Fuhlendorf, DM Leslie Plant Ecology 212, 1513-1525, 2011 | 63 | 2011 |
| Age estimation of Quercus marilandica and Quercus stellata: applications for interpreting stand dynamics SL Clark, SW Hallgren Canadian Journal of Forest Research 34 (6), 1353-1358, 2004 | 63 | 2004 |
| Dynamics of oak (Quercus marilandica and Q. stellata) reproduction in an old-growth Cross Timbers forest SL Clark, SW Hallgren Southeastern Naturalist 2 (4), 559-574, 2003 | 56 | 2003 |
| Historic fire regime of an upland oak forest in south-central North America RD DeSantis, SW Hallgren, DW Stahle Fire Ecology 6, 45-61, 2010 | 54 | 2010 |
| Fire frequency affects structure and composition of xeric forests of eastern Oklahoma JA Burton, SW Hallgren, MW Palmer Natural Areas Journal 30 (4), 370-379, 2010 | 52 | 2010 |
| Anatomy of seedling tap roots of loblolly pine (Pinus taeda L.) DE Enstone, CA Peterson, SW Hallgren Trees 15, 98-111, 2001 | 43 | 2001 |
| The historic fire regime on the edge of the prairie: a case study from the Cross Timbers of Oklahoma SL Clark, SW Hallgren, DM Engle, DW Stahle Proceedings of the Tall Timbers Fire Ecology Conference 23, 40-49, 2007 | 38 | 2007 |
| Effects of root severing treatments on loblolly pine WC Carlson, CA Harrington, P Farnum, SW Hallgren Canadian Journal of Forest Research 18 (11), 1376-1385, 1988 | 36 | 1988 |
| Juniperus virginiana encroachment into upland oak forests alters arbuscular mycorrhizal abundance and litter chemistry RJ Williams, SW Hallgren, GWT Wilson, MW Palmer Applied soil ecology 65, 23-30, 2013 | 34 | 2013 |
| Beneficial effects of solid matrix chemo-priming in okra KE Conway, R Mereddy, BA Kahn, Y Wu, SW Hallgren, L Wu Plant disease 85 (5), 535-537, 2001 | 34 | 2001 |
| Using marker-aided selection to improve tree growth response to abiotic stress CG Tauer, SW Hallgren, B Martin Canadian Journal of Forest Research 22 (7), 1018-1030, 1992 | 33 | 1992 |
| Fine root carbohydrate dynamics of loblolly pine seedlings grown under contrasting levels of soil moisture SW Hallgren, CG Tauer, JE Lock Forest science 37 (3), 766-780, 1991 | 28 | 1991 |
| Effects of osmotic priming using aerated solutions of polyethylene glycol on germination of pine seeds SW Hallgren Annales des sciences forestières 46 (1), 31-37, 1989 | 28 | 1989 |
| Characteristics of the Keystone Ancient Forest Preserve, an old-growth forest in the Cross Timbers of Oklahoma, USA. SL Clark, SW Hallgren, DW Stahle, TB Lynch | 27 | 2005 |
| Effects of moist chilling and solid matrix priming on germination of loblolly pine (Pinus taeda L.) seeds L Wu, SW Hallgren, DM Ferris, KE Conway New Forests 21, 1-16, 2001 | 26 | 2001 |
