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Roger Kjelgren

Profile Picture

PSC

Landscaping

Professor






Contact Information

Go toOffice Location: AGRS 336
DialPhone: 435-797-2972
SendEmail: roger.kjelgren@usu.edu

Awards

Jefferson Science Fellowship, 2012

National Academy of Sciences

Adjunct Professor Lamont-Dougherty Earth Observatory Columbia University, 2009

Adjunct professor, Kasetsart University Thailand, 2009

Sabbatical in Australia, 2006

Fulbright Fellowship, 2005


  • Kjelgren, R.K, (1992). Irrigation, water relations, and Crabapple growth in root control bags in a field nursery. Hortscience Proc. (Abstract) *
  • Kjelgren, R.K, (1992). Water stress detection with foliage temperature for irrigation scheduling in nursery production. Hortscience Proc. (Abstract) *

Publications - Books & Book Chapters

    Books

  • Kjelgren, R.K, (2009). Landscaping on the new frontier: waterwise design for the Intermountain West.
  • Kjelgren, R.K, (2003). Water Wise: Native plants for Intermountain Landscapes. USU Press. 256 pp. Logan, Utah *
  • Book Chapters

  • Rupp, L.A, Kjelgren, R.K, (2006). Stewardship and the Concept of Yield in Landscape Water Conservation. Religious Studies Center, Brigham Young University
  • Kjelgren, R.K, (2003). Maintaining Hydraulic Control Using Deep Rooted Tree Systems. In: Advances in Biochemical Engineering/Biotechnology, Vol. 78. Springer-Verlag,

* Has not been peer reviewed

Publications - Fact Sheets

    * Has not been peer reviewed

    Publications - Curriculum

      * Has not been peer reviewed

      Publications - Journal Articles

        Academic Journal

      • Kopp, K., Kjelgren, R.K, Urzagaste, P., Dai, X., Physiological and quality responses of turfgrass and ornamental plants to weather-based irrigation control. International Turfgrass Research Journal
      • DeRose, J., Bekker, M., Allen, E., Buckley, B., Kjelgren, R.K, Rittenour, T.M, Wang, S., , (2015). A millennium-length reconstruction of Bear River stream flow using Utah Juniper. Journal Hydrology, 529, 524-534.
      • Wensai, Z., Sun, Y., Kjelgren, R.K, Liu, X., , (2015). Response of stomatal density and bound gas exchange in leaves of maize to soil water deficit. Acta Physiologiae Plantarum, 37, 1704.
      • H., F., Kjelgren, R.K, (2015). Response of Physiological Properties and Crop Water Productivity of Young Apple Tree to Water and Fertilizer. . Transactions Chinese Society Agricultural Machinery, 46, 77-87.
      • Glenn, D.T, Endter-Wada, J.L, Kjelgren, R.K, Neale, C.M, (2015). Tools for Evaluating and Monitoring Effectiveness of Urban Landscape Water Conservation Interventions and Programs. Landscape and Urban Planning, 139, 82-93. doi: 10.1016/j.landurbplan.2015.03.002
      • Matt, B., DeRose, J., B.B, Kjelgren, R.K, Gill , N., (2014). A 576-Year Weber River Streamflow Reconstruction from Tree Rings for Water Resource Risk Assessment in the Wasatch Front, Utah. American Water Resources Association 50, 1338-1348.
      • Sriladda, C., Kjelgren, R.K, Kratsch, H., Tom, M., Steve, L., Shen, F., , (2014). Ecological adapation of the endemic Shepherdia rotundifolia to conditions in its Colorado Plateau Range. Western North American Naturalist , 74, 79-91.
      • Leksungnoen, N., Kjelgren, R.K, Richard, B., Johnson, P.G, Cardon, G., Hawks, A., (2014). Salt tolerance of three tree species differing in native habitats and leaf traits. HortScience, 49, 1194-1200.
      • Kjelgren, R.K, Benson, D., (2014). Tacit Diplomacy in Life Sciences: A Foundation for Science Diplomacy. Science and Diplomacy, AAAS, 2014:March
      • Glenn, D.T, Endter-Wada, J.L, Kjelgren, R.K, , Tools for Evaluating and Monitoring Effectiveness of Urban Landscape Water Conservation Interventions and Programs. Landscape and Urban Planning
      • Allen, E., Rittenour, T.M, DeRose, R., Bekker, M., Kjelgren, R.K, Buckley, B., (2013). A tree-ring based reconstruction of Logan River streamflow, northern Utah. . Water Resources Research , 49, 1-10.
      • Sriladda, C., Kratsch, H., Larson, S., Kjelgren, R.K, (2012). Morphological and genetic variation among Sphaeralcea Species in a high desert environment. HortScience, 47:6, 715-720.
      • Richards, M.R, Rupp, L.A, Kjelgren, R.K, Rasmussen, V., (2012). Selection and Budding Propagation of Native Bigtooth Maple for Water-conserving Landscapes. HortTechnology, 22, 669-676.
      • Richards, M.R, Rupp, L.A, Kjelgren, R.K, Rasmussen, V., (2012). Selection and Budding Propagation of Native Bigtooth Maple for Water-conserving Landscapes. HortTechnology, 22, 669-676.
      • Kjelgren, R.K, Hole, D.J, Johnson, P.G, (2012). Globally Engaging American Agriculture and Natural Resource Students through Service Learning Study Abroad. Journal of Developments in Sustainable Agriculture, 7:1, 14-22.
      • Sun, H., Kopp, K., Kjelgren, R.K, (2012). Water efficient urban landscapes-Integrating different water use categorizations and plant types. HortScience, 47, 254-263.
      • Farag, F., Neale, C.M, Kjelgren, R.K, Endter-Wada, J.L, (2011). Quantifying Urban Landscape Water Conservation Potential Using High Resolution Remote Sensing and GISconservation at the rural-urban interface using remote sensing and GIS. Photogrammeteric Engineering and Remote Sensing, 77, 1113-1122.
      • Trisurat, Y., Shrestha, R., Kjelgren, R.K, (2011). Plant Species Vulnerability to Climate Change in Peninsular Thailand. J. Tropical Ecology, 31, 1106-1114.
      • Rosenberg, D.E, Kopp, K., Kratsch, H., Rupp, L.A, Johnson, P.G, Kjelgren, R.K, (2011). Value Landscape Engineering: Identifying Costs, Water Use, Labor, and Impacts to Support Landscape Choice. Journal of the American Water Resources Association, 47:3, 635–649. doi: 10.1111/j.1752-1688.2011.00530.x
      • Lowry, J.H, Ramsey, R., Kjelgren, R.K, , (2011). Predicting urban forest growth and its impact on residential landscape water demand in a semiarid urban environment. Urban Forests & Urban Greening, 10:3, 193-204.
      • Valentin, K., Pierre, M., Kjelgren, R.K, Brice, S., (2010). Effect of moisture stress on leaf silicification of three tropical fodder species (Pennisetum purpureum, Panicum maximum Cv. C1, and P. maximum Jacq.) in Republic of Benin (West Africa). American-Eurasian J. Agriculture & Environmental Science, 8:5, 530-537.
      • Kjelgren, R.K, (2009). Water deficit stress Responses of three herbaceous native Australian ornamental species. HortScience, 44, 1358-1365.
      • Kjelgren, R.K, (2008). Nitrogen and media assessment for first-year pot-in-pot production of container and bare root liners in the Intermountain West. Journal Environmental Horticulture, 26, 247-252.
      • Gunnell, J., Grossl, P., Kjelgren, R.K, (2008). Nitrogen and Substrate Assessment for Pot-in-pot Production in the Intermountain West.. Journal of Environmental Horticulture, Vol. 26 Num. 4:December, 247-252.
      • Kjelgren, R.K, (2008). Urban green space, street tree and heritage large tree assessment in Bangkok, Thailand. Urban Forestry and Urban Greening, 7, 219-229.
      • Kjelgren, R.K, (2008). Water use of four street tree species in Bangkok, Thailand. Acta Horticulturae, 792, 405-409.
      • Kjelgren, R.K, (2008). Situational waste in landscape watering:residential and business water use in an urban Utah community. Journal American Water Resources Association, 44, 902-920.
      • Kjelgren, R.K, (2007). Agricultural Experiment Station Faculty and Administrator Attitudes and Perceptions Regarding Placing Research Results on the World Wide Web .. HorTechnology, 17, 95-101.
      • Kjelgren, R.K, (2007). Characterizing fertilizer and media pH requirements for greenhouse production of Intermountain West native herbaceous perennials.. Native Plant Journal, 8, 115-121.
      • Kjelgren, R.K, (2007). Relative Salinity tolerance of Intermountain Western United States Native Herbaceous Perennials. HortScience, 42, 529-534.
      • Kjelgren, R.K, (2006). Drought responses of six ornamental herbaceous perennials. Scientia Horticulturae, 109, 267-274.
      • Kjelgren, R.K, (2006). Evaluating a Line Source Irrigation System for Determining Water Requirements of Herbaceous Perennials. J. Environmental Horticulture, 24, 225:229.
      • Kjelgren, R.K, (2006). Pot-in-pot production of six Intermountain West native herbaceous perennial speices grown in containers. J. Environmental Horticulture, 24, 77-83.
      • Kjelgren, R.K, (2006). Using thermal dissipation probes to estimate water loss of containerized landscape tree species. J. Environmental Horticulture, 24, 95-104.
      • Stewart, R., Kjelgren, R.K, Johnson, P.G, Kuhns, M.R, (2005). Growth and water relations of littleleaf linden trees in irrigated buffalograss and Kentucky bluegrass. HortScience, 40:5, 1529-1533.
      • Kjelgren, R.K, (2005). Competition between Linden shade trees and buffalograss and Kentucky bluegrass during establishment: turfgrass depletion threshold and rooting depth. HortScience, 40, 1529-1533.
      • Kjelgren, R.K, (2005). Water use and stomatal behavior of sweetgum (Liquidambar styraciflua L.) relative to reference evaporation in three contrasting regions. Acta Horticulturae, 664, 353-360.
      • Stewart, R., Kjelgren, R.K, Johnson, P.G, Kuhns, M.R, (2004). Soil-water-use characteristics of precision-irrigated buffalograss and Kentucky bluegrass. Online Applied Turfgrass Science, doi:10.109
      • Brewer, H., Kjelgren, R.K, Johnson, P.G, (2004). A study of two methods of delivery computer aided diagnostic assistance for turfgrass problems on the web.. Issues in Information Systems, 5, 43-48.
      • Kjelgren, R.K, (2004). Energy balance of six common landscape surfaces and the influence of surface properties on gas exchange of four containerized tree species.. Scientia Horticulturae, 100, 229-249.
      • Kjelgren, R.K, (2004). Soil-water-use characteristics of precision-irrigated buffalograss and Kentucky bluegrass. Applied Turfgrass Science, doi:10.1094/ATS-2004-1118-01-RS
      • Dewey, D.W, Johnson, P.G, Kjelgren, R.K, (2004). Species composition changes in a rooftop grass and wildflower meadow: Implications for designing successful mixtures.. Native Plants Journal, 5, 57-65.
      • Kjelgren, R.K, (2004). Species composition changes in a rootop grass and wildflower meadow: Implication for designing successful mixtures. Native Plants J., 5, 56-65.
      • Kjelgren, R.K, (2004). Water loss estimates for five recently transplanted landscape tree species in a semi-arid climate. J. Environ Hort., 22, 189-196.
      • Montague, D.T, Kjelgren, R.K, Rupp, L.A, (2000). Surface energy balance affects gas exchange and growth of two transplanted landscape trees. J. Am. Soc. Hort. Sci., 125, 299-309.
      • Kjelgren, R.K, Chapman, N., Rupp, L.A, (2000). Tree seedling establishment with protective shelters and irrigation scheduling in three naturalized landscapes in Utah. J. Environmental Horticulture, 18, 238-246.
      • Kjelgren, R.K, (2000). Gas exchange and growth of transplanted, field-grown trees in an arid climate. HortScience, 35, 763-768.
      • Kjelgren, R.K, (2000). Surface energy balance affects gas exchange and growth of two transplanted landscape trees. J. Am. Soc. Hort. Sci., 125, 299-309.
      • Kjelgren, R.K, (2000). Tree seedling establishment with protective shelters and irrigation scheduling in three naturalized landscapes in Utah. J. Env. Hort., 18, 238-246..
      • Kjelgren, R.K, (2000). Water conservation in urban landscapes.. HortScience, 35, 1037-1043.
      • Kjelgren, R.K, (1999). Toxicity assessment of volatile organic compounds in poplar trees.. Int. J. Phytoremediation, 1, 17-Sep.
      • Montague, D.T, Kjelgren, R.K, Rupp, L.A, (1998). Surface energy balance affects gas exchange and growth of two transplanted landscape trees. J. Arboricult., 24, 254-262.
      • Kjelgren, R.K, (1998). In-ground fabric containers as an alternative nursery crop production system. .. HorTechnology, 8:159-163.
      • Kjelgren, R.K, (1998). Surface energy balance affects gas exchange of three shrub species.. J. Arboricult., 24:254-262.
      • Kjelgren, R.K, (1998). Urban Tree Transpiration Over Turf and Asphalt Surfaces. Atmospheric Environment, 32:35-41.
      • Kjelgren, R.K, (1998). Using HortBase in education.. HorTechnology, 8:301-306.
      • Kjelgren, R.K, Rupp, L.A, (1997). Establishment of Norway maple and green ash in treeshelters. I: Shelters reduce growth, water use, and hardiness, but not drought avoidance. HortScience, 32, 1281-1283.
      • Kjelgren, R.K, Rupp, L.A, (1997). Establishment of Norway maple and green ash in treeshelters. II: Effect of shelter color on gas exchange and hardiness. HortScience, 32, 1284-1287.
      • Rupp, L.A, Kjelgren, R.K, Ernstsen, J.A, Varga, W.A, (1997). Shearing and growth of five intermountain native shrub species. J. Environmental Horticulture, 15, 123-125.
      • Kjelgren, R.K, Rupp, L.A, (1997). Treeshelters improve seedling establishment under herbaceous competition. Int. Soc. Arbor. J., 23:4, 131-135.
      • Kjelgren, R.K, (1997). Effect of annual shearing on growth of five high desert shrubs. J. Env. Hort., 15, 123-125.
      • Kjelgren, R.K, (1997). Establishment in Treeshelters I: Shelters Reduce Growth, Water Use, and Hardiness, but not Drought Avoidance. HortScience, 32:1281-1283.
      • Kjelgren, R.K, (1997). Establishment in Treeshelters II: Effect of shelter color on gas exchange and hardiness. HortScience, 32:1284-1287.
      • Kjelgren, R.K, (1997). Treeshelters improve seedling establishment under herbaceous competition.. Int. Soc. Arbor. J., 23:131-135.
      • Kjelgren, R.K, (1996). Irrigation timing of tree landscape shrub species based on foliage temperature. Arboricultural J., 20:47-57.
      • Kjelgren, R.K, (1995). Variable urban irradiance and shade acclimation in Norway maple street trees. J. Arboriculture, 21:145-149.
      • Kjelgren, R.K, (1995). Variable urban irradiance and shade acclimation in Norway maple street trees. J. Arboriculture 21:145-149
      • Kjelgren, R.K, (1994). Coppice growth and water relations of silver maple. Biomass and Bioenergy, 5:317-323.
      • Kjelgren, R.K, (1994). Effect of irrigation on crabapple growth and water relations during field production with in-ground fabric containers. J. Environ. Hort., 100-103.
      • Kjelgren, R.K, (1994). Establishment of six tree species on deep-tilled minesoil during reclamation. Forest Ecol. and Management, 68:273-280.
      • Kjelgren, R.K, (1994). Establishment of white oak seedlings with three handling methods on deep-tilled minesoil during reclamation. J. Environ. Hort., 12, 96-99.
      • Kjelgren, R.K, (1994). Growth and water relations of Kentucky coffee tree and silver maple following transplanting. J. Environ. Hort., 12 108-111.
      • Kjelgren, R.K, (1994). Growth and water relations of Kentucky coffee tree in protective shelters during establishment. HortScience, 29:777-780.
      • Kjelgren, R.K, (1994). Urban microclimates and growth of sweetgum street trees.. Arboriculture J., 18:401-417.
      • Kjelgren, R.K, (1993). Water Relations of Liquidambar Styraciflua L. in an Urban Canyon. J. Arboriculture 19:266-270
      • Kjelgren, R.K, (1992). Cambial electrical resistance does not assess vitality of individual sweetgum trees. J. Arboricult. 18:1-5
      • Kjelgren, R.K, (1992). Microclimates and Tree Growth in Three Urban Spaces. J. Environ. Hort. 10:139-145
      • Kjelgren, R.K, (1992). Photosynthesis and leaf morphology of Liquidambar styraciflua L. under variable urban radiant energy conditions. Int. J. Biometeorol. 36:165-171
      • Kjelgren, R.K, (1990). Water and Urban Trees. J. Arboricult. 16:203-208
      • Kjelgren, R.K, (1989). Conceptual Tree Planting. J. Arboricult. 15:229-236
      • Professional Journal

      • Caron, M.S, Kjelgren, R.K, (2016). Growth and Water Use During Establishment of Irrigated Bare Root and Balled-Burlap Green Ash Transplanted Into a High Desert Landscape. HortScience, 51:9, 1188-1193.
      • Public or Trade Journal

      • Kjelgren, R.K, (1995). Hedgerows use more water, but increase efficiency, profit in young walnuts. California Agri. 49:24-28 *
      • Kjelgren, R.K, (1995). Irrigation and Crabapple Growth. Malus 9:17-22 *
      • Kjelgren, R.K, (1993). Trees in Urban Microclimates. Tree Leaves, publication of the Rocky Mountain Chapter of the International Arboriculture, July *
      • Kjelgren, R.K, (1993). Growth and water relations of Liquidambar styraciflua L in an urban park and plaza. Trees 7:195-201 *
      • Kjelgren, R.K, (1992). Internships: The Untapped Resource. Amer. Nurseryman, Sept. 15. pp. 48-50 *

      * Has not been peer reviewed

      Publications - Literary Journal

        * Has not been peer reviewed

        Publications - MultiMedia

          Other Media

        * Has not been peer reviewed

        Publications - Technical Reports

          Research Reports

        • Rupp, L.A, Kopp, K., Kjelgren, R.K, Johnson, P.G, Extension Water Initiative Interim Report - Center for Water Efficient Landscaping. *
        • Rosenberg, D.E, Kopp, K., Kratsch, H., Rupp, , Johnson, , Kjelgren, R.K, (2010). Value Landscape Engineering Lifecycle Analysis Final Report & User's Guide to the Spreadsheet Program. Central Utah Water Conservancy District *
        • Kjelgren, R.K, (1985). Water use requirements of pistachio trees and response to water stress. In, California Pistachio Industry 1984-1985 Annual Report *
        • Kjelgren, R.K, (1984). Physiological Response of Pistachio to Severe Water Stress. In: California Pistachio Industry 1984-1985 Annual Report *

        * Has not been peer reviewed

        Publications - Translations & Transcripts

          Publications - Other

            Other

          • Kjelgren, R.K, (1988). Urban microclimate effects on the growth and performance of Liquidambar styraciflua L.. Ph.D. Dissertation, University of Washington *
          • Kjelgren, R.K, (1985). Improving low volume sprinkler perfonnance by acid injection. Soil and Water, No. 63 *
          • Kjelgren, R.K, (1984). Fertilizer nitrogen use efficiency by winter wheat in the Willamette Valley. M.S. Thesis, Oregon State University *
          • Kjelgren, R.K, (1983). Estimating soil water contents with the neutron probe-how important is a tight-fitting access tube. Soil and Water, No. 55 *

          * Has not been peer reviewed

          Scheduled Teaching

          PSC 5090 - Sustainable Low Water Landscaping, Spring 2017

          LAEP, PSC 5090, 6090 - Sustainable Low Water Landscaping, Fall 2016

          BIOL, PSC 6950 - Navigating Sciences Terra Incognita: Communicating to Non-Scientists, Fall 2015

          PSC 5090 - Sustainable Low Water Landscaping, Fall 2015

          PSC 5090 - Sustainable Low Water Landscaping, Summer 2015

          PSC 6900 - Special Problems in Plants, Soils, and/or Climate, Spring 2015

          LAEP,PSC 5090,6090 - Sustainable Low Water Landscaping, Fall 2014

          BIOL,PSC 6750,6900 - Topics in Biology, Fall 2014

          PSC 6230 - Readings in Landscape Water Conservation, Summer 2014

          LAEP,PSC 5090,6090 - Sustainable Low Water Landscaping, Fall 2013

          PSC 6900 - Special Problems in Plants, Soils, and/or Climate, Spring 2013

          PSC 6990 - Continuing Graduate Advisement, Fall 2012

          PSC 5090 - Low Water Landscaping, Summer 2012

          PSC 6890,7890 - Plants, Soils, and Climate Graduate Seminar, Spring 2012

          PSC 4900 - Special Problems, Spring 2012

          LAEP 6400 - Low Water Landscaping, Fall 2011

          PSC 5090 - Low Water Landscaping, Fall 2011

          PSC 6970 - RESEARCH & THESIS, Spring 2011

          PSC 7970 - RESEARCH & THESIS, Spring 2011

          PSC 6900 - SPECIAL PROBLEMS, Spring 2011

          PSC 7990 - Continuing Graduate Advisement, Fall 2010

          PSC 6090 - Low Water Landscape Design, Fall 2010

          PSC 5090 - Low Water Landscaping, Fall 2010

          PSC 6090 - Low Water Landscaping, Fall 2010

          PSC 6970 - Research and Thesis, Fall 2010

          PSC 7970 - Research and Thesis, Fall 2010

          PSC 6900 - Special Problems in Plants, Soils, and/or Climate, Fall 2010


          Extension

          International Programs Coordination, - Ongoing
          Propagation of Native Plants for Landscape Use, 2007 - Ongoing
          Applied Water Conservation and Turfgrass Research, 2001 - 2013
          Extension Turfgrass Education, 2001 - 2013
          Extension Water Conservation Education, 2001 - 2013

          Graduate Students Mentored

          Preston Colver, Plants, Soils, and Climate, January 2011
          Hang Duong, Plants, Soils, and Climate, June 2007
          Kurt Rashall, Plants, Soils, and Climate, May 2007
          Graham Hunter, Plants, Soils, and Climate, June 2005 - January 2013
          Nisa Leksungnoen, Plants, Soils, and Climate, June 2007 - May 2012
          Sam Miller, Plants, Soils, and Climate, April 2009 - December 2011
          Chalita Sriladda, Plants, Soils, and Climate, April 2007 - September 2011