Southern
Research Station

Featured Publications and Products

• Zhou, Yong ; Singh, Jenia ; Butnor, John R.; Coetsee, Corli ; Boucher, Peter B.; Case, Madelon F.; Hockridge, Evan G.; Davies, Andrew B.; Staver, A. Carla. 2022. Limited increases in savanna carbon stocks over decades of fire suppression.
• Prakash, Anoob ; DeYoung, Sonia ; Lachmuth, Susanne ; Adams, Jacquelyne L.; Johnsen, Kurt ; Butnor, John R.; Nelson, David M.; Fitzpatrick, Matthew C.; Keller, Stephen R. 2022. Genotypic variation and plasticity in climate-adaptive traits after range expansion and fragmentation of red spruce ( Picea rubens Sarg.).
• Capblancq, Thibaut ; Munson, Helena ; Butnor, John R.; Keller, Stephen R. 2021. Genomic drivers of early-life fitness in Picea rubens.
• Gu, Huijie ; Liu, Liantao ; Butnor, John R.; Sun, Hongyong ; Zhang, Xiying ; Li, Cundong ; Liu, Xiuwei . 2021. Electrical capacitance estimates crop root traits best under dry conditions—a case study in cotton (Gossypium hirsutum L.).
• Liu, Xinbo ; Guo, Li ; Cui, Xihong ; Butnor, John R.; Boyer, Elizabeth W.; Yang, Dedi ; Chen, Jin ; Fan, Bihang . 2022. An automatic processing framework for in situ determination of ecohydrological root water content by ground-penetrating radar.
• Butnor, John R.; Johnsen, Kurt H.; Maier, Christopher A.; Nelson, C. Dana. 2020. Intra-annual variation in soil C, N and nutrients pools after prescribed fire in a Mississippi longleaf pine (Pinus palustris Mill.) plantation.
• Capblancq, Thibaut ; Butnor, John R.; Deyoung, Sonia ; Thibault, Ethan ; Munson, Helena ; Nelson, David M.; Fitzpatrick, Matthew C.; Keller, Stephen R. 2020. Whole‐exome sequencing reveals a long‐term decline in effective population size of red spruce ( Picea rubens ).
• Liu, X. ; Chen, J. ; Butnor, J. R.; Qin, G. ; Cui, X. ; Fan, B. ; Lin, H. ; Guo, L. . 2020. Noninvasive 2D and 3D Mapping of Root Zone Soil Moisture Through the Detection of Coarse Roots With Ground‐Penetrating Radar.

Publications

• Butnor, John; Eaton, Bob; Nelson, C. Dana. 2022. Growth Response of mature longleaf pine to drought and thinning at the Harrison Experimental Forest in south Mississippi.
• Butnor, John ; Johnsen, Kurt ; Anderson, Peter ; Hall, Kevin ; Halman, Joshua ; Hawley, Gary ; Maier, Christopher ; Schaberg, Paul G. 2019. Growth, Photosynthesis, and Cold Tolerance of Eucalyptus benthamii Planted in the Piedmont of North Carolina.
• Butnor, John ; Verrico, Brittany ; Johnsen, Kurt ; Maier, Christopher ; Vankus, Victor ; Keller, Stephen R. 2019. Phenotypic variation in climate-associated traits of red spruce (Picea rubens Sarg.) along elevation gradients in the southern Appalachian Mountains.
• Butnor, John R.; Verrico, Brittany M.; Vankus, Victor; Keller, Stephen R. 2018. Ethanol exposure can inhibit red spruce ( Picea rubens ) seed germination.
• Liu, Xiuwei; Dong, Xuejun; Xue, Qingwu; Leskovar, Daniel I.; Jifon, John; Butnor, John R.; Marek, Thomas. 2018. Ground penetrating radar (GPR) detects fine roots of agricultural crops in the field.
• Anderson, Peter H.; Johnsen, Kurt H.; Butnor, John R.; Gonzalez-Benecke, Carlos A.; Samuelson, Lisa J. 2018. Predicting longleaf pine coarse root decomposition in the southeastern US.
• Hardiman, Brady; Gough, Christopher; Butnor, John; Bohrer, Gil; Detto, Matteo; Curtis, Peter. 2017. Coupling fine-scale root and canopy structure using ground-based remote sensing.
• Samuelson, Lisa J.; Stokes, Thomas A.; Butnor, John R.; Johnsen, Kurt H.; Gonzalez-Benecke, Carlos A.; Martin, Timothy A.; Cropper, Wendell P.; Anderson, Pete H.; Ramirez, Michael R.; Lewis, John C. 2017. Ecosystem carbon density and allocation across a chronosequence of longleaf pine forests.
• Schaberg, Paul G.; Murakami, Paula F.; Butnor, John R.; Hawley, Gary J. 2017. Experimental branch cooling increases foliar sugar and anthocyanin concentrations in sugar maple at the end of the growing season.
• Bain, John; Day, Frank; Butnor, John. 2017. Experimental evaluation of several key factors affecting root biomass estimation by 1500 MHz ground penetrating radar.
• Butnor, John R.; Samuelson, Lisa J.; Johnsen, Kurt H.; Anderson, Peter H.; Gonzalez Benecke, Carlos A.; Boot, Claudia M.; Cotrufo, M. Francesca; Heckman, Katherine A.; Jackson, Jason A.; Stokes, Thomas A.; Zarnoch, Stanley J. 2017. Vertical distribution and persistence of soil organic carbon in fire-adapted longleaf pine forests.
• Butnor, John R.; Johnsen, Kurt H.; Nelson, C. Dana. 2016. Changes in soil chemistry six months after prescribed fire in a longleaf pine plantation in Mississippi.
• Butnor, John R.; Samuelson, Lisa J.; Stokes, Thomas A.; Johnsen, Kurt H.; Anderson, Peter H.; Gonzalez-Benecke, Carlos A. 2016. Surface-based GPR underestimates below-stump root biomass.
• Maier, Christopher; Anderson, Peter; Butnor, John R.; Dougherty, Phillip M.; Johnsen, Kurt; Mcinnis, Daniel. 2016. Temporal and spatial patterns of soil CO2 efflux, soil carbon, and root biomass associated with bedding in young loblolly pine plantations.
• Gonzalez-Benecke, C.A.; Samuelson, L.J.; Martin, T.A.; Cropper Jr, W.P.; Johnsen, Kurt; Stokes, T.A.; Butnor, John; Anderson, P.H. 2015. Modeling the effects of forest management on in situ and ex situ longleaf pine forest carbon stocks.
• Samuelson, Lisa; Stokes, Tom; Butnor, John R.; Johnsen, Kurt H.; Gonzalez-Benecke, Carlos A.; Anderson, Pete; Jackson, Jason; Ferrari, Lorenzo; Martin, Tim A.; Cropper, Wendell P. 2014. Ecosystem carbon stocks in Pinus palustris forests.
• Butnor, John R.; Campbell, John L.; Shanley, James B.; Zarnoch, Stanley. 2014. Measuring soil frost depth in forest ecosystems with ground penetrating radar.
• Johnsen, Kurt H.; Keyser, Tara L.; Butnor, John R.; Gonzalez-Beenecke, Carlos A.; Kaczmarek, Donald J.; Maier, Chris A.; McCarthy, Heather R.; Sun, Ge. 2014. Productivity and carbon sequestration of forests in the southern United States.
• Berryman, Erin; Marshall, John D.; Rahn, Thom; Litvak, Marcie; Butnor, John. 2013. Decreased carbon limitation of litter respiration in a mortality-affected pinon-juniper woodland.
• Oishi, A. Christopher; Palmroth, Sari; Butnor, John; Johnsen, Kurt; Oren, Ram. 2013. Spatial and temporal variability of soil CO₂ efflux in three proximate temperate forest ecosystems.
• Day, Frank; Schroeder, Rachel; Stover, Daniel; Brown, Alisha; Butnor, John; Dilustro, John; Hungate, Bruce; Dijkstra, Paul; Duval, Benjamin; Seiler, Troy; Drake, Bert; Hinkle, Ross. 2013. The effects of 11 yr of CO₂ enrichment on roots in a Florida scrub-oak ecosystem.
• Runion, G. Brett; Butnor, John R.; Prior, S. A.; Mitchell, R. J.; Rogers, H. H. 2012. Effects of atmospheric CO₂ enrichment on soil CO₂ efflux in a young longleaf pine system.
• Butnor, John R.; Johnsen, Kurt H.; Nelson, C. Dana. 2012. Exploring genetic diversity, physiologic expression and carbon dynamics in longleaf pine: a new study installation at the Harrison Experimental Forest.
• Butnor, John R.; Johnsen, Kurt H.; Sanchez, Felipe G; Nelson, C. Dana. 2012. Impacts of pine species, stump removal, cultivation, and fertilization on soil properties half a century after planting.
• Butnor, John R. 2012. Proceedings of the 16th biennial southern silvicultural research conference.
• Butnor, John. 2011. Book Review of Soil carbon dynamics: an integrated methodology.
• Munoz Del Valle, Patricio R.; Huber, Dudley A.; Butnor, John R. 2011. Phenotypic analysis of first-year traits in a pseudo-backcross {(slash x loblolly) x slash} and the ope-pollinated families of the pure-species progenitors.
• Samuelson, Lisa J.; Eberhardt, Thomas L.; Butnor, John R.; Stokes, Tom A.; Johnsen, Kurt H. 2010. Maximum growth potential in loblolly pine: results from a 47-year-old spacing study in Hawaii.
• Doolittle, James. 2009. Soils, peatlands, and biomonitoring.
• Butnor, John; Johnsen, Kurt; Samuelson, Lisa; Pruyn, Michele. 2009. Current applications of GPR in forest research.
• Butnor, J.R.; Pruyn, M.L.; Shaw, D.C.; Harmon, M.E.; Mucciardi, A.N.; Ryan, M.G. 2009. Detecting defects in conifers with ground penetrating radar: applications and challenges.
• Johnsen, Kurt H.; Butnor, John R.; Kush, John S.; Schmidtling, Ronald C.; Nelson, C. Dana. 2009. Hurricane Katrina winds damaged longleaf pine less than loblolly pine.
• Busse, Matt D.; Sanchez, Felipe G.; Ratcliff, Alice W.; Butnor, John R.; Carter, Emily A.; Powers, Robert F. 2009. Soil carbon sequestration and changes in fungal and bacterial biomass following incorporation of forest residues.
• Samuelson, Lisa J.; Butnor, John; Maier, Chris; Stokes, Tom A.; Johnsen, Kurt; Kane, Michael. 2008. Growth and physiology of loblolly pine in response to long-term resource management: defining growth potential in the southern United States.
• Stover, Daniel B.; Day, Frank P.; Butnor, John R; Drake, Bert G. 2007. Effect of elevated CO₂ on coarse-root biomass in Florida scrub detected by ground-penetrating radar.
• Johnsen, Kurt; Maier, Chris; Sanchez, Felipe; Anderson, Peter; Butnor, John; Waring, Richard; Linder, Sune. 2007. Physiological girdling of pine trees via phloem chilling: proof of concept.
• Palmroth, Sari; Oren, Ram; McCarthy, Heather R.; Johnsen, Kurt H.; Finzi, Adrien C.; Butnor, John R.; Ryan, Michael G.; Schlesinger, William H. 2006. Aboveground sink strength in forests controls the allocation of carbon below ground and its [CO₂]-induced enhancement.
• Butnor, John R.; Johnsen, Kurt H.; Wikstrom, Per; Lundmark, Tomas; Linder, Sune. 2006. Imaging tree roots with borehole radar.
• Butnor, John R.; Johnsen, Kurt H.; Sanchez, Felipe G. 2006. Whole-tree and forest floor removal from a loblolly pine plantation have no effect on forest floor CO₂ efflux 10 years after harvest.
• Ma, Siyan; Chen, Jiquan; Butnor, John R.; North, Malcolm; Euskirchen, Eugénie S.; Oakley, Brian. 2005. Biophysical controls on soil respiration in the dominant patch types of an old-growth, mixed-conifer forest.
• Butnor, John; Roth, Brian; Johnsen, Kurt. 2005. Feasibility of using ground-penetrating radar to quantify root mass in Florida's intensively managed pine plantations.
• Butnor, John R.; Johnsen, Kurt H.; Maier, Chris A. 2005. Soil properties differently influence estimates of soil CO₂ efflux from three chamber-based measurement systems.
• Butnor, John R.; Johnsen, Kurt H. 2004. Calibrating soil respiration measures with a dynamic flux apparatus using artificial soil media of varying porosity.
• Johnsen, Kurt; Teskey, Bob; Samuelson, Lisa; Butnor, John; Sampson, David; Sanchez, Felipe; Maier, Chris; McKeand, Steve. 2004. Carbon Sequestration in loblolly pine plantations: Methods, limitations, and research needs for estimating storage pools.
• Butnor, John R.; Johnsen, Kurt H.; Oren, Ram; Katul, Gabriel G. 2003. Reduction of forest floor respiration by fertilization on both carbon dioxide-enriched and reference 17-year-old loblolly pine stands.
• Butnor, John R.; Doolittle, J.A.; Johnsen, Kurt H.; Samuelson, L.; Stokes, T.; Kress, L. 2003. Utility of Ground-Penetrating Radar as a Root Biomass Survey Tool in Forest Systems.
• Maier, Chris A.; Johnsen, Kurt H.; Butnor, John; Kress, Lance W.; Anderson, Peter H. 2002. Branch growth and gas exchange in 13-year-old loblolly pine (Pinus taeda) trees in response to elevated carbon dioxide concentration and fertilization.
• Lai, Chun-Tai; Katul, Gabriel; Butnor, John; Ellsworth, David; Oren, Ram. 2002. Modelling night-time ecosystem respiration by a constrained source optimization method.
• Johnsen, Kurt H.; Wear, David N.; Oren, R.; Teskey, R.O.; Sanchez, Felipe; Will, Rodney E.; Butnor, John; Markewitz, D.; Richter, D.; Rials, T.; Allen, H.L.; Seiler, J.; Ellsworth, D.; Maier, Christopher; Katul, G.; Dougherty, P.M. 2001. Meeting global policy commitments carbon sequestration and southern pine forests.
• Johnsen, Kurt H.; Wear, Dave; Oren, R.; Teskey, R.O.; Sanchez, Felipe; Will, R.; Butnor, John; Markewitz, D.; Richter, D.; Rials, T.; Allen, H.L.; Seiler, J.; Ellsworth, D.; Maier, Christopher; Katul, G.; Dougherty, P.M. 2001. Meeting global policy commitments: carbon sequestration and southern pine forests.
• Butnor, John R.; Doolittle, J.A.; Kress, L.; Cohen, Susan; Johnsen, Kurt H. 2001. Use of ground-penetrating radar to study tree roots in the southeastern United States.
• Butnor, J.R.; Seiler, J.R.; Gray, J.A. 2000. Influence of Procerum Root Disease on the Water Relations of Eastern White Pine (Pinus strobus L.).