Photo of Dale Johnson, Extension

Dale Johnson

Emeritus Professor

Summary

 My research interests fall into two basic categories: 1) biogeochemical cycling and 2) soils. With regard to the former, my interests include effects of both regional and global phenomena (such as atmospheric pollution, increased carbon dioxide and climate change) as well as more localized influences (such as harvesting, fire, fertilization) on biochemical cycling, primarily in forest ecosystems. With regard to the latter, my interests include soil-soil solution chemical interactions, factors affecting organic carbon accumulation and loss, nitrogen, sulfur, phosphorus transformations, and trace gas emission from soils.

Education

B.S. 1969, University of Washington
Ph.D. 1975, University of Washington

Honors and Awards

Oak Ridge National Laboratory:

Eugene P. Wigner Fellowship, 1977-1979
Annual Scientific Achievement Award, Environmental Sciences Division, 1983
Publication Award, Martin Marietta Energy Systems, May 1985

Oak Ridge National Laboratory:

Technical Achievement Award, Martin Marietta Energy Systems, May 1986
Publication Award, Martin Marietta Energy Systems, May 1987

Desert Research Institute/University of Nevada, Reno:

Dandini Medal of Science, October 1993

Outstanding Faculty Member, Board of Regents, University and Community College System of Nevada, March 1997

Regents Researcher Award, Board of Regents, University and Community College System of Nevada, 1999

Outstanding Faculty Member, Board of Regents, University and Community College System of Nevada, March 2000

News & Journal Articles, Fact Sheets, Reports...

Book Chapter(s)
Some Basic Considerations and Case Studies. Johnson, D. W. 2010, In Page-Dumrose, D., D. Neary, C. Trettin (Ed.), Scientific Background for Soil Monitoring on National Forests and Rangelands (pp. pp. 1-12)
Chapter 18: Fire Effects on Carbon and Nitrogen Cycling in Forests of the Sierra Nevada Mountains. Johnson, D. W., Fenn, M. A., Miller, W. W., Hunsaker, C 2009, In Andrzej Bytnerowicz, Michael Arbaugh, Christian Andersen and Allen Riebau (Ed.), Wildland Fires and Air Pollution. Developments in Environmental Science 8.
Responses of Carbon and Nitrogen Cycles to Disturbance in Forests and Rangelands. Johnson, D.W., and Schultz, B.W. 1999, In: Lawrence W. Walker (ed). Ecosystems of the World. 16. Ecosystems of Disturbed Ground. Elsevier Science. New York. Pp. 545-569.
Bulletins
AD-421 Progress Report-The Effects of Broadcast and Slash Pile Burning on Soil Properties, Nutrient Budgets, Fuels, Vegetation Growth, and Water Quality in Sierran Forests. Johnson, D. W., Walker, R. F., Miller, W. W. 2009, Washington, D.C.: U.S. Department of Agriculture.
Journals
Long-term forest floor fuels accumulations in Sierran mixed conifer subjected to forest restoration treatments. Swim, S. L., Walker, R. F., Johnson, D. W., Fecko, R. M., Miller, W. W. 2016, Journal of Forest Research, 5, 134.
Elemental Ratios in Foliage and Soil of a Jeffrey Pine Stand Subjected to Thinning and Burning Restoration Practices. Walker, R. F., Fecko, R. M., Johnson, D. W., Miller, W. W. 2016, Journal of Forest Research, 5, 180
Mechanized Thinning, Prescribed Fire, and Needle Age Influences on the Mineral Nutrition of Jeffrey Pine: Elemental Concentrations in Foliage and Soil. Walker, R. F., Fecko, R. M., Johnson, D. W., Miller, W. W. 2016, Journal of Forest Research, 5, 172
Root System Development of Juvenile Ponderosa Pine as Influenced by Soil Type and Nutritional Augmentation. Walker, R. F., Susfalk, R. B., Johnson, D. W. 2016, Journal of Forest Research, 5, 187
Responses of a Sierran Mixed Conifer Understory Plant Community to Over Story Thinning, Slash Mastication and Prescribed Fire Restoration Treatments. Walker, R. F., Swim, S. L., Fecko, R. M., Johnson, D. W., Miller, W. W. 2016, Journal of Forest Research, 5, 167
Recovery Status of a Sierra Nevada Forest Plant Community One-Half Century After Wildfire. Walker, R. F., Swim, S. L., Johnson, D. W., Miller, W. W. 2016, Journal of Forest Research, 5, 181
Bark Beetle Demography in Sierra Nevada Mixed Conifer: Variability & Influencing Factors. Walker, R. F., Swim, S. L., Fecko, R. M., Johnson, D. W., Miller, W. W. 2015, Journal of Forest Research, 4, 147
Bark beetle demography in Sierra Nevada mixed conifer: Variability and influencing factors. Walker, R. F., Swim, S. L., Fecko, R. M., Johnson, D. W., Miller, W. W. 2015, Journal of Forest Research, 4(3), 147.
Long-term growth of Sierra Nevada mixed conifer in response to mechanized thinning, slash mastication, and prescribed fire. Walker, R. F., Swim, S. L., Fecko, R. M., Johnson, D. W., Miller, W. W. 2015, Journal of Forest Research, 4(4), 159.
The effects of thinning, residue mastication, and prescribed fire on soil and nutrient budgets in a Sierra Nevada mixed conifer forest. Johnson, D. W., Walker, R. F., Glass, D. W., Stein, C. M., Murphy, J. B., Blank, R. R., Miller, W. W. 2014, Forest Science, 60, 170-179.
Prescribed fire and timber harvesting effects on soil carbon and nitrogen in a pine forest. Roaldson, L. M., Johnson, D. W., Miller, W. W., Murphy, J. D., Walker, R. F., Stein, C. M., Glass, D. W., Blank, R. R. 2014, Soil Science Society of America Journal, 78, 548-557.
Fire Effects on the Mobilization and Uptake of Nitrogen by Cheatgrass (Bromus tectorum L.) Johnson, B. G., Johnson, D. W., Chambers, J. C., Blank, R. R. 2011, Plant and Soil, 341, 437-445
The Effects of Slash Pile Burning on Soil and Water Macronutrients Johnson, B. G., Johnson, D. W., Miller, W. W., Carroll-Moore, E. M., Board, D. I. 2011, Soil Science, 176(8), 413-425
Carbon and Nutrient Contents in Soils From the King's River Experimental Watershed, Sierran Nevada Mountains, California. Johnson, D. W., Hunsaker, C. T., Glass, D. W., Rau, B. M., Roath, B. A. 2011, Geoderma, 160, 490-502.
The nature and potential causes of nutrient hotspots in a Sierra Nevada forest soil Johnson, D. W., Miller, W. W., Rau, B. M., Meadows, M. W. 2011, Soil Science, 176(11), 596-610
Subsurface Carbon Contents: Some Case Studies in Forest Soils Johnson, D. W., Murphy, J. D., Rau, B. M., Miller, W. W. 2011, Forest Science, 57(1), 3-10
Revisiting Soil Nutrient Sampling: Quantitative Pits vs. Rotary Cores Rau, B. M., Melvin, A. R., Johnson, D. W., Goodale, C. L., Blank, R. R., Fredriksen, G., Miller, W. W., Murphy, J. D., Todd, D. E., Walker, R. F. 2011, Soil Science, 176(6), 273-279.
Hot Spots and Hot Moments: Another Look at Nutrient Variability in Sierra Nevada Forest Soils. Johnson, D. W., Glass, D. W., Murphy, J. D., Stein, C. M., Miller, W. W. 2010, Biogeochemistry, 101, 93-103
Influence of Prescribed Fire on Ecosystem Biomass, Carbon, and Nitrogen in a Pinyon Juniper Woodland. Rau, B. M., Tausch, B. j., Reiner, A. L., Johnson, D. W., Chambers, J. C., Blank, R. R. 2010, Rangeland Ecology and Management, 63, 197-202
Snowbrush (Ceanothus velutinus Dougl) Effects on Soil Leaching and Water Quality in a Sierran Ecosystem. Stein, C. M., Johnson, D. W., Miller, W. W., Powers, R. F., Young, D. A., Glass, D. S. 2010, Ecohydrology, 3, 79-87.
Biogeochemical Cycling in Forest Soils of the Eastern Sierra Nevada Mountains, USA Johnson, D. W., Miller, W. W., Susfalk, R. B., Dahlgren, R. A., Murphy, J. D., Glass, D. W. 2009, Forest Ecology and Management, 258, 2249-2260.
Evaluation of effects of sustained decadal precipitation. Froberg, M., Hanson, P. J., Todd, D. E., Johnson, D. W. 2008, Biogeochemistry, 89, 151-161.
Decadal changes in potassium, calcium, and magnesium in a deciduous forest soil. Johnson, D. W., Todd, D. E., Trettin, C. F., Mulholland, P. J. 2008, Soil Science Society of America, Journal, 72(6), 1795-1805.
Spatial analysis of a large magnitude erosion event following a Sierran wildfire. Carroll EM, Miller WW, Johnson DW, Saito L, Qualls RG, Walker RF. 2007, Journal of Environmental Quality 36:1105-1111.