Scientists & Staff
Greg C. Liknes
Current Research
I am a Physical Scientist in the Forest Inventory and Analysis (FIA) Research Work Unit. The FIA program at the Northern Research Station is responsible for the forest land inventories of 24 states extending from the Great Plains to the northeastern United States. My current research interest is the application of geospatial and remote sensing technologies to improving the precision and efficiency of inventories.
Research Interests
I work with a variety of airborne and spaceborne sensors including multi-spectral and optical imagery, lidar, and radar. I'm exploring digital stereo imagery (specifically, photogrammetrically-derived point clouds) and the potential for improved estimates of forest volume and biomass over large areas. I work at the intersection of GIS, data science, and remote sensing with the aim of applying best practices from these fields to improve the efficiency of workflows and to analyze large amounts of information.Past Research
I have worked in several different areas of research either supporting forest inventory operations or utilizing inventory data to address ecological questions:- semi-automated approaches to mapping the landscape using high-resolution imagery, particularly in areas with tree cover that do not meet a traditional definition of forest (e.g., narrow windbreaks in the Great Plains)
- determining the best methods for combining climate data with forest inventory information (e.g., to support analysis of elevated tree mortality related to drought)
- canopy cover modeling (formerly as the Forest Service science team leader for the NLCD canopy cover dataset)
Why This Research is Important
The FIA program fills critical forest information needs for a variety of customers in state government, the timber industry, environmental organizations, and many more. As a neutral provider of data, FIA seeks to constantly improve the inventory efficiency and utility in order to maximize the return on taxpayer dollars. Integrating geospatial and remote sensing technologies into inventory processes aids in achieving this objective.
Education
- University of Minnesota, M.S. Department of Soil, Water, & Climate, 1999
- University of North Dakota, B.S. Department of Atmospheric Science, 1996
Professional Experience
- District GIS Coordinator, Minnesota Department of Transportation 2019 - 2020
Professional Organizations
- Minnesota GIS/LIS Consortium (2001 - Current)
Awards & Recognition
- Microsoft AI for Earth grant recipient, 2017
Featured Publications & Products
- Liknes, Greg C.; Meneguzzo, Dacia M.; Kellerman, Todd A. 2017. Shape indexes for semi-automated detection of windbreaks in thematic tree cover maps from the central United States. International Journal of Applied Earth Observation and Geoinformation
- Riemann, Rachel; Liknes, Greg C.; O'Neil-Dunne, Jarlath; Toney, Chris; Lister, Tonya. 2016. Comparative assessment of methods for estimating tree canopy cover across a rural-to-urban gradient in the mid-Atlantic region of the USA. Environmental Monitoring and Assessment. 188: 297. 17 p.
- Meneguzzo, Dacia M.; Liknes, Greg C.; Nelson, Mark D. 2013. Mapping trees outside forests using high-resolution aerial imagery: a comparison of pixel- and object based classification approaches. Environmental Monitoring and Assessment. 185: 6261-6275.
- Liknes, Greg C.; Perry, Charles H.; Meneguzzo, Dacia M. 2010. Assessing tree cover in agricultural landscapes using high-resolution aerial imagery. Journal of Terrestrial Observation. 2(1): 38-55.
- Yang, Limin ; Jin, Suming ; Danielson, Patrick ; Homer, Collin ; Gass, Leila ; Bender, Stacie M.; Case, Adam ; Costello, Catherine ; Dewitz, Jon ; Fry, Joyce ; Funk, Michelle ; Granneman, Brian ; Liknes, Greg C.; Rigge, Matthew ; Xian, George. 2018. A new generation of the United States National Land Cover Database: Requirements, research priorities, design, and implementation strategies. ISPRS Journal of Photogrammetry and Remote Sensing
Publications & Products
- Goff, Thomas C.; Nelson, Mark D.; Liknes, Greg C.; Feeley, Tivon E.; Pugh, Scott A.; Morin, Randall S. 2021. Rapid Assessment of Tree Damage Resulting from a 2020 Windstorm in Iowa, USA. Forests
- Derwin, Jill M.; Thomas, Valerie A.; Wynne, Randolph H.; Coulston, John W.; Liknes, Greg C.; Bender, Stacie ; Blinn, Christine E.; Brooks, Evan B.; Ruefenacht, Bonnie ; Benton, Robert ; Finco, Mark V; Megown, Kevin. 2020. Estimating tree canopy cover using harmonic regression coefficients derived from multitemporal Landsat data. International Journal of Applied Earth Observation and Geoinformation
- Lister, Andrew J.; Andersen, Hans ; Frescino, Tracey ; Gatziolis, Demetrios ; Healey, Sean ; Heath, Linda S.; Liknes, Greg C.; McRoberts, Ronald ; Moisen, Gretchen G.; Nelson, Mark ; Riemann, Rachel ; Schleeweis, Karen ; Schroeder, Todd A.; Westfall, James ; Wilson, B. Tyler. 2020. Use of Remote Sensing Data to Improve the Efficiency of National Forest Inventories: A Case Study from the United States National Forest Inventory. Forests
- McRoberts, Ronald E.; Næsset, Erik ; Liknes, Greg C.; Chen, Qi ; Walters, Brian F.; Saatchi, Sassan ; Herold, Martin. 2019. Using a Finer Resolution Biomass Map to Assess the Accuracy of a Regional, Map-Based Estimate of Forest Biomass. Surveys in Geophysics
- McRoberts, Ronald E.; Stehman, Stephen V; Liknes, Greg C.; Næsset, Erik ; Sannier, Christophe ; Walters, Brian F. 2018. The effects of imperfect reference data on remote sensing-assisted estimators of land cover class proportions. ISPRS Journal of Photogrammetry and Remote Sensing
- Crocker, Susan J.; Liknes, Greg C. 2017. Forests of New Jersey, 2016. Resource Update FS-135. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
- Crocker, Susan J.; Liknes, Greg C.; McKee, Fraser R.; Albers, Jana S.; Aukema, Brian H. 2016. Stand-level factors associated with resurging mortality from eastern larch beetle (Dendroctonus simplex LeConte). Forest Ecology and Management. 375: 27-34.
- Liknes, Greg C.; Crocker, Susan J.; Morin, Randall S.; Walters, Brian F. 2015. Hurricane impacts on forest resources in the Eastern United States: a post-sandy assessment. In: Stanton, Sharon M.; Christensen, Glenn A., comps. 2015. Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015. 2015 December 8-10; Portland, Oregon. Gen. Tech. Rep. PNW-GTR-931. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 173-177.
- Liknes, Greg C.; Meneguzzo, Dacia M.; Nimerfro, Kevin. 2015. Woody encroachment in the Central United States. In: Stanton, Sharon M.; Christensen, Glenn A., comps. 2015. Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015. 2015 December 8-10; Portland, Oregon. Gen. Tech. Rep. PNW-GTR-931. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. p. 374.
- Meneguzzo, Dacia M.; Liknes, Greg C. 2015. Research Activities in Support of High-Resolution Land Cover Mapping in the North Central United States. In: Stanton, Sharon M.; Christensen, Glenn A., comps. 2015. Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015. 2015 December 8-10; Portland, Oregon. Gen. Tech. Rep. PNW-GTR-931. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. p. 244.
- Meneguzzo, Dacia M.; Liknes, Greg C. 2015. Status and trends of eastern redcedar (Juniperus virginiana) in the central United States: Analyses and observations based on Forest Inventory and Analysis data. Journal of Forestry. 113(3): 325-334.
- Schrader-Patton, Charlie; Liknes, Greg C.; Gatziolis, Demetrios; Wing, Brian M.; Nelson, Mark D.; Miles, Patrick D.; Bixby, Josh; Wendt, Daniel G.; Kepler, Dennis; Schaaf, Abbey. 2015. Refining FIA plot locations using LiDAR point clouds. In: Stanton, Sharon M.; Christensen, Glenn A., comps. 2015. Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015. 2015 December 8-10; Portland, Oregon. Gen. Tech. Rep. PNW-GTR-931. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 247-252.
- Butler, Brett J.; Hewes, Jaketon H.; Liknes, Greg C.; Nelson, Mark D.; Snyder, Stephanie A. 2014. A comparison of techniques for generating forest ownership spatial products. Applied Geography. 46: 21-34.
- Hewes, Jaketon H.; Butler, Brett J.; Liknes, Greg C.; Nelson, Mark D.; Snyder, Stephanie A. 2014. Map of distribution of six forest ownership types in the conterminous United States. Res. Map NRS-6. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [Scale 1: 10,000,000, 1: 34,000,000.]
- McRoberts, Ronald E.; Liknes, Greg C.; Domke, Grant M. 2014. Using a remote sensing-based, percent tree cover map to enhance forest inventory estimation. Forest Ecology and Management. 331: 12-18.
- Stein, Susan M.; Carr, Mary A.; Liknes, Greg C.; Comas, Sara J. 2014. Islands on the edge: housing development and other threats to America's Pacific and Caribbean Island forests: a Forests on the Edge report. Gen. Tech. Rep. NRS-137. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 55 p.
- Liknes, Greg C.; Morin, Randall S.; Canham, Charles D. 2013. Trend analyses and projections using national forest inventory data. Mathematical and Computational Forestry and Natural-Resources Sciences. 5(2): 112-114.
- Liknes, Greg C.; Nelson, Mark D.; Kaisershot, Daniel J. 2013. Net change in forest density, 1873-2001. Using historical maps to monitor long-term forest trends.. RMAP-NRS-4. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 12 p.
- Goeking, Sara A.; Liknes, Greg C. 2012. Is lodgepole pine mortality due to mountain pine beetle linked to the North American Monsoon?. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 448-452.
- Goeking, Sara A.; Liknes, Greg C.; Lindblom, Erik; Chase, John; Jacobs, Dennis M.; Benton, Robert. 2012. A GIS-based tool for estimating tree canopy cover on fixed-radius plots using high-resolution aerial imagery. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 237-241.
- Liknes, Greg C.; Woodall, Christopher W.; Perry, Charles H. 2012. Using inventory data to determine the impact of drought on tree mortality. 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. 109-112.
- Liknes, Greg C.; Woodall, Christopher W.; Walters, Brian F.; Goeking, Sara A. 2012. Unlocking the climate riddle in forested ecosystems. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 99-103.
- Meneguzzo, Dacia M.; Liknes, Greg C. 2012. A framework for reporting tree cover attributes in agricultural landscapes. 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. 193-194.
- Meneguzzo, Dacia M; Crocker, Susan J.; Nelson, Mark D.; Barnett, Charles J.; Butler, Brett J.; Domke, Grant M.; Hansen, Mark H.; Hatfield, Mark A.; Liknes, Greg C.; Lister, Andrew J.; Lister, Tonya W.; Piva, Ronald J.; Wilson, Barry T. (Ty); Woodall, Christopher W. 2012. Nebraska's Forests 2010. Resour. Bull. NRS-68 . Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 47 p. [DVD included]
- Morin, Randall S.; Liknes, Greg C. 2012. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]. 478 p.
- Morin, Randall S.; Liknes, Greg C. 2012. Poster abstracts of Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 462-478.
- Morin, Randall S.; Liknes, Greg C. 2012. Abstracts of Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 30 p.
- Riemann, Rachel; O'Neil-Dunne, Jarlath; Liknes, Greg C. 2012. Building capacity for providing canopy cover and canopy height at FIA plot locations using high-resolution imagery and leaf-off LiDAR. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 242-247.
- Toney, Chris; Liknes, Greg; Lister, Andy; Meneguzzo, Dacia. 2012. Assessing alternative measures of tree canopy cover: Photo-interpreted NAIP and ground-based estimates. 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. 209-215.
- Crocker, Susan J.; Liknes, Greg C.; Meneguzzo, Dacia M. 2011. Retrospective analysis of EAB spread: understanding the effect of landscape pattern on invasion and propagation. In: Parra, Gregory; Lance, David; Mastro, Victor; Reardon, Richard; Benedict, Chuck, comps. 2011 emerald ash borer national research and technology development meeting; 2011 October 12-13; Wooster, OH. FHTET-2011-06. Morgantown, WV; U.S. Department of Agriculture, Forest Service, State and Private Forestry, Forest Health Protection, Forest Health Technology Enterprise Team: 122-124.
- Crocker, Susan J.; Meneguzzo, Dacia M.; Liknes, Greg C. 2010. Patterns among the ashes: Exploring the relationship between landscape pattern and the emerald ash borer. In: Michler, Charles H.; Ginzel, Matthew D., eds. 2010. Proceedings of symposium on ash in North America; 2010 March 9-11; West Lafayette, IN. Gen. Tech. Rep. NRS-P-72. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 32-40.
- Liknes, Greg C.; Crocker, Susan J.; Meneguzzo, Dacia M. 2010. Climatic controls on emerald ash borer dispersal. In: Michler, Charles H.; Ginzel, Matthew D., eds. 2010. Proceedings of symposium on ash in North America; 2010 March 9-11; West Lafayette, IN. Gen. Tech. Rep. NRS-P-72. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 61.
- Liknes, Greg C.; Nelson, Mark D.; Butler, Brett J. 2010. Public and private forest ownership in the conterminous United States. Chapter 6.. In: Eredics, Peter, ed. Mapping Forestry. Redlands, CA: ESRI Press: 21-24.
- Meneguzzo, Dacia M.; Crocker, Susan J.; Liknes, Greg C. 2010. A technique for mapping urban ash trees using object-based image analysis. In: Michler, Charles H.; Ginzel, Matthew D., eds. 2010. Proceedings of symposium on ash in North America; 2010 March 9-11; West Lafayette, IN. Gen. Tech. Rep. NRS-P-72. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 62.
- Nelson, Mark D.; Liknes, Greg C.; Butler, Brett J. 2010. Map of forest ownership in the conterminous United States. [Scale 1:7,500,000].. Res. Map NRS-2. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station.
- Woodall, C.J.; Nowak, D.J.; Liknes, G.C.; Westfall, J.A. 2010. Assessing the potential for urban trees to facilitate forest tree migration in the eastern United States. Forest Ecology and Managment. 259: 1447-1454.
- Zimmerman, Patrick L.; Liknes, Greg C. 2010. The role of misclassification in estimating proportions and an estimator of misclassification probability. International Journal of Mathematical and Computational Forestry and Natural-Resource Sciences. 2(2): 78-85.
- Goeking, Sara A.; Liknes, Greg C. 2009. The role of pre-field operations at four forest inventory units: We can see the trees, not just the forest. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 12 p.
- Liknes, Greg C.; Nelson, Mark D. 2009. Improving Forest Inventory and Analysis efficiency with common land unit information. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. Proceedings of the eighth annual forest inventory and analysis symposium; 2006 October 16-19; Monterey, CA. Gen. Tech. Report WO-79. Washington, DC: U.S. Department of Agriculture, Forest Service. 363-366.
- Liknes, Greg C.; Nelson, Mark D.; Gormanson, Dale D.; Hansen, Mark. 2009. The utility of the cropland data layer for Forest Inventory and Analysis. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. Proceedings of the eighth annual forest inventory and analysis symposium; 2006 October 16-19; Monterey, CA. Gen. Tech. Report WO-79. Washington, DC: U.S. Department of Agriculture, Forest Service. 259-264.
- Liknes, Greg C.; Woodall, Christopher W.; Perry, Charles H. 2009. Predicting forest attributes from climate data using a recursive partitioning and regression tree algorithm. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 7 p.
- Nelson, Mark; Liknes, Greg; Perry, Charles H. 2009. Combining forest inventory, satellite remote sensing, and geospatial data for mapping forest attributes of the conterminous United States. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 9 p.
- Ruefenacht, Bonnie; Liknes, Greg; Lister, Andrew J.; Fisk, Haans; Wendt, Dan. 2009. Evaluation of open source data mining software packages. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 13 p.
- Perry, C.H.; Woodall, C.W.; Liknes, G.C.; Schoeneberger, M.M. 2008. Filling the gap: improving estimates of working tree resources in agricultural landscapes. Agroforest Systems.
- Perry, Charles H. (Hobie); Everson, Vern A.; Brown, Ian K.; Cummings-Carlson, Jane; Dahir, Sally E.; Jepsen, Edward A.; Kovach, Joe; Labissoniere, Michael D.; Mace, Terry R.; Padley, Eunice A.; Rideout, Richard B.; Butler, Brett J.; Crocker, Susan J.; Liknes, Greg C.; Morin, Randall S.; Nelson, Mark D.; Wilson, Barry T. (Ty); Woodall, Christopher W. 2008. Wisconsin's forests, 2004. Resour. Bull. NRS-23. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 104 p.
- Woodall, C.W.; Liknes, G.C. 2008. Relationships between forest fine and coarse woody debris carbon stocks across latitudinal gradients in the United States as an indicator of climate change effects. Ecological Indicators. 8: 686-690.
- Woodall, Christopher W.; Liknes, Greg C. 2008. Climatic regions as an indicator of forest coarse and fine woody debris carbon stocks in the United States. Carbon Balance and Management. 3:5.
- Nelson, Mark D.; Liknes, Greg C. 2007. Forest Land Ownership in the Conterminous United States [map]. In: Law, M., ed. 2007. ESRI Map Book. Vol. 22. ESRI Press: Redlands, CA.
- McRoberts, Ronald E.; Barbour, R. James; Gebert, Krista M.; Liknes, Greg C.; Nelson, Mark D.; Meneguzzo, Dacia M.; et al. 2006. Using basic geographic information systems functionality to support sustainable forest management decision making and post-decision assessments. Journal of Sustainable Forestry. 23(4): 13- 34.
- McRoberts, Ronald E.; Holden, Geoffrey R.; Nelson, Mark D.; Liknes, Greg C.; Gormanson, Dale D. 2006. Using satellite imagery as ancillary data for increasing the precision of estimates for the Forest Inventory and Analysis program of the USDA Forest Service. Can. J. For. Res. 36: 2968-2980
- Woodall, Christopher W.; Charney, Joseph; Liknes, Greg; Potter, Brian. 2006. Linking Fuel Inventories With Atmospheric Data for Assessment of Fire Danger. In: Proceedings of the sixth annual forest inventory and analysis symposium; 2004 September 21-24; Denver, CO. Gen. Tech. Rep. WO-70. Washington, DC: U.S. Department of Agriculture Forest Service. 126p.
- Liknes, Greg C.; Holden, Geoffrey R.; Nelson, Mark D.; McRoberts, Ronald E. 2005. Spatially Locating FIA Plots from Pixel Values. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 99-103
- McRoberts, R.E.; Wendt, D.G.; Liknes, G.C. 2005. Stratified estimation of forest inventory variables using spatially summarized stratifications. Silva Fennica. 39(4): 559-571.
- McRoberts, Ronald E.; Holden, Geoffrey R.; Nelson, Mark D.; Liknes, Greg C.; Moser, Warren K.; Lister, Andrew J.; King, Susan L.; LaPoint, Elizabeth B.; Coulston, John W.; Smith, W. Brad; Reams, Gregory A. 2005. Estimating and circumventing the effects of perturbing and swapping inventory plot locations. Journal of Forestry. 3(6): 275-279.
- McRoberts, Ronald E.; Liknes, Greg C. 2005. Assessing the Effects of Forest Fragmentation Using Satellite Imagery and Forest Inventory Data. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 117-120
- McRoberts, Ronald E.; Liknes, Greg C.; Nelson, Mark D.; Gebert, Krista M.; Barbour, R. James; Odell, Susan L.; Yaddof, Steven C. 2005. Allocating Fire Mitigation Funds on the Basis of the Predicted Probabilities of Forest Wildfire. In: Proceedings of the fifth annual forest inventory and analysis symposium; 2003 November 18-20; New Orleans, LA. Gen. Tech. Rep. WO-69. Washington, DC: U.S. Department of Agriculture Forest Service. 222p.
- Moser, W. Keith; Liknes, Greg; Hansen, Mark; Nimerfro, Kevin. 2005. Incorporation of Precipitation Data Into FIA Analyses: A Case Study of Factors Influencing Susceptibility to Oak Decline in Southern Missouri, U.S.A.. In: Proceedings of the fifth annual forest inventory and analysis symposium; 2003 November 18-20; New Orleans, LA. Gen. Tech. Rep. WO-69. Washington, DC: U.S. Department of Agriculture Forest Service. 222p.
- Nelson, Mark D.; McRoberts, Ronald E.; Liknes, Greg C.; Holden, Geoffrey R. 2005. Comparing Forest/Nonforest Classifications of Landsat TM Imagery for Stratifying FIA Estimates of Forest Land Area. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 121-128
- USDA Forest Service; Rummer, Bob; Prestemon, Jeff; May, Dennis; Miles, Pat; Vissage, John; McRoberts, Ron; Liknes, Greg; Shepperd, Wayne D.; Ferguson, Dennis; Elliot, William; Miller, Sue; Reutebuch, Steve; Barbour, Jamie; Fried, Jeremy; Stokes, Bryce; Bilek, Edward; Skog, Ken. 2005. A strategic assessment of forest biomass and fuel reduction treatments in Western States. Gen. Tech. Rep. RMRS-GTR-149. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 17 p.
- Woodall, Christopher W.; Charney, Joseph J.; Liknes, Greg C.; Potter, Brian E. 2005. What's the fire danger now? Linking fuel inventories with atmospheric data. Journal of Forestry 103: 293-298.
- Liknes, Greg C.; Nelson, Mark D.; McRoberts, Ronald E. 2004. Evaluating Classified MODIS Satellite Imagery as a Stratification Tool. In: McRoberts, R.; et al., eds. Proceedings of the joint meeting of The 6th International Symposium On Spatial Accuracy Assessment In Natural Resources and Environmental Sciences and The 15th Annual Conference of The International Environmetrics Society, June 28 - July 1 2004, Portland, Maine, USA. 8 p.
- O'Neill, Katherine; Amacher, Michael; Palmer, Craig; Conkling, Barbara; Liknes, Greg C. 2003. Soil Quality as an Indicator of Forest Health: an Overview and Initial Results from the USFS Forest Inventory and Analysis Soil Indicator Program. In: Proceedings, Society of American Foresters 2002 National Convention; Winston Salem, NC. SAF Publishing.03-01. Bethesda, MD: Society of American Foresters: 347-349
- Rummer, Bob; Prestemon, Jeff; May, Dennis; Miles, Pat; Vissage, John; McRoberts, Ron; Liknes, Greg; Shepperd, Wayne D.; Ferguson, Dennis; Elliot, William; Miller, Sue; Reutebuch, Steve; Barbour, Jamie; Fried, Jeremy; Stokes, Bryce; Bilek, Edward; Skog, Ken. 2003. A strategic assessment of forest biomass and fuel reduction treatments in western states. [Washington, D.C.?] : U.S. Dept. of Agriculture, Forest Service, Research and Development, 2003: iii, 18 pages
- McRoberts, Ronald E.; Liknes, Greg C. 2002. The effects of forest fragmentation on forest stand attributes. In: Proceedings of ForestSAT Symposium; Edinbourgh, UK: Forest Research, Forestry Commission. [City, State: Publisher Unknown].5 p.
Research Datasets
- Paull, Darci A.; Meneguzzo, Dacia M.; Gonzalez, Ricardo M.; Garcia, Devon L.; Marcotte, Abbey L.; Liknes, Greg C.; Finney, Tanner N. 2019. High-resolution urban land cover of Kansas (2015). Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2019-0052.
- Kellerman, Todd A.; Meneguzzo, Dacia M.; Vaitkus, Milda; White, Monica; Ossell, Ryan; Sorsen, Nathan; Stannard, Jack; Gift, Trent; Cox, Jessica; Liknes, Greg C. 2019. High-resolution land cover of Nebraska (2014). Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2019-0038.
- Paull, Darci A.; Whitson, Jakob W.; Marcotte, Abbey L.; Liknes, Greg C.; Meneguzzo, Dacia M.; Kellerman, Todd A. 2017. High-resolution land cover of Kansas (2015). Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2017-0025.
- Hewes, Jaketon H.; Butler, Brett J.; Liknes, Greg C. 2017. Forest ownership in the conterminous United States circa 2014: distribution of seven ownership types - geospatial dataset. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2017-0007.
- Hewes, Jaketon H.; Butler, Brett J.; Liknes, Greg C.; Nelson, Mark D.; Snyder, Stephanie A. 2014. Public and private forest ownership in the conterminous United States: distribution of six ownership types - geospatial dataset. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2014-0002.
- Liknes, Greg C.; Nelson, Mark D.; Kaisershot, Daniel J. 2013. Historical woodland density of the conterminous United States, 1873. Newtown Square, PA: USDA Forest Service, Northern Research Station. https://doi.org/10.2737/RDS-2013-0006.
- Nelson, Mark D.; Liknes, Greg C.; Butler, Brett J. 2010. Forest ownership in the conterminous United States: ForestOwn_v1 geospatial dataset. Newtown Square, PA: USDA Forest Service, Northern Research Station. https://doi.org/10.2737/RDS-2010-0002.
National Research Highlights
Forest Inventory and Analysis Data Helps Inform Landscape Drivers of Insect-induced Tamarack Mortality
Year: 2016
Tamarack trees have long been associated with Minnesota’s “Great North Woods” and have seen a slow but steady rise in abundance starting in the mid-20th century. Now, an eruption in the population of native eastern larch beetles is causing mortality of tamarack to climb.
Partnerships Produce High-resolution Land Cover Maps of the Central Plains
Year: 2016
High-resolution maps, created by the Forest Inventory and Analysis Program and its research partners, are being used to fill a monitoring role for important tree resources in the Plains States of Nebraska and Kansas.
Eastern Redcedar Forests are Expanding in the Central United States
Year: 2015
Monitoring of change in our nation’s forest resources is an important aspect of the Forest Inventory and Analysis (FIA) work in the Forest Service’s Northern Research Station. FIA scientists analyzed more than 8,000 sites and found that eastern red cedar has been increasing its numbers in the Central United States.