Publications
Littke, K.M., Holub, S.M., Littke, W.R., Turnblom, E.C. 2025. Effects of urea fertilization and liming on soil nutrient dynamics following intensive organic matter removal and vegetation control in a Douglas-fir forest. For. Ecol. Manage. 590. https://doi.org/10.1016/j.foreco.2025.122792.
Lim, H., Medvigy, D., Mäkelä, A., Kim, D., Albaugh, T.J., Knier, A., Blaško, R., Campoe, O.C., Deshar, R, Franklin, O., Henriksson, N., Littke, K., Lutter, R., Maier, C.A., Palmroth, S., Rosenvald, K., Slesak, R.A., Tullus, A., Oren, R. 2024. Overlooked branch turnover creates a widespread bias in forest carbon accounting. PNAS. 121(42). https://www.pnas.org/lookup/suppl/doi:10.1073/pnas.2401035121/-/DCSupplemental
Holub, S.M., Cattnach, G., Littke, K.M., Hatten, J.A. 2024. Forest soil carbon storage in 10-year-old Douglas-fir plantations of western Oregon and Washington remains similar to pre-harvest. Soil Sci. Soc. Am. J. https://doi.org/10.1002/saj2.20740.
Jang, W., Eskelson, B.N.I, Littke, K.M., Turnblom, E.C. 2024. Individual fertilization response with social status and crown characteristics for western hemlock (Tsuga heterophylla). Can. J. For. Res. https://doi.org/10.1139/cjfr-2023-0258.
Littke, K.M., Holub, S.M., Bremer, E., Turnblom, E.C. 2024. Utility of in situ ion exchange membranes to assess nutrient availability, productivity, and fertilizer response of coastal Douglas-fir of the Pacific Northwest. Soil Sci. Soc. Am. J. 1-19.
Ochoa-Hueso, R., M. Delgado-Baquerizo, A.C. Risch, L. Ashton, D. Augustine, N. Bélanger, S. Bridgham, A.J. Britton, V.J. Bruckman, J. J. Camarero, G. Cornelissen, J.A. Crawford, F. Dijkstra, A. Diochon, S. Earl, J. Edgerley, H. Epstein, A. Felton, J. Fortier, D. Gagnon, K. Greer, H.M. Griffiths, C. Halde, H.M. Hanslin, L.I. Harris, J.A. Hartsock, P. Hendrickson, K.A. Hovstad, J. Hu, A.D. Jani, K. Kent, D. Kerdraon-Byrne, S.D.S. Khalsa, D.Y.F. Lai, F. Lambert, J.M. LaMontagne, S. Lavergne, B.A. Lawrence, K.M. Littke, … Bioavailability of macro and micronutrients across global topsoils: Main drivers and global change impacts. Global Biogeochemical Cycles. 37(6).
Buntrock, L. V.A. Thomas, B. Strahm, T. Fox, R. Harrison, A. Himes, K. Littke. 2022. Patterns in foliar isotopic nitrogen, percent nitrogen, and site index for managed forest systems in the United States. Forests. 13(10): 1694.
Gallo, A.C., S. Holub, K. Littke, K. Lajtha, D. Maguire, J. Hatten. 2022. Effects on soil temperature, moisture, and soil respiration two years following intensive organic matter and compaction manipulations in the Oregon Cascades. Soil Sci. Soc. J. 87(4).
Littke, K.M., Holub, S.M., Slesak, R.A., Littke, W.R., Turnblom, E.C. 2021. Five-year growth, biomass, and nitrogen pools of Douglas-fir following intensive forest management treatments. For. Ecol. Manage. 494(2).
Littke, K.M., Harrington, T.B., Slesak, R.A., Holub, S.M., Hatten, J.A., Gallo, A.C., Littke, W.R., Harrison, R.B., Turnblom, E.C. 2020. Douglas-Fir Biomass Allocation and Net Nutrient Pools 15–20 Years after Organic Matter Removal and Vegetation Control. Forests. 11.
Littke, K.M., Harrington, T.B., Slesak, R.A., Holub, S.M., Hatten, J.A., Gallo, A.C., Littke, W.R., Harrison, R.B., and Turnblom, E.C. 2020. Impacts of organic matter removal and vegetation control on nutrition and growth of Douglas-fir at three Pacific Northwestern Long-Term Soil Productivity sites. For. Ecol. Manage. 468.
Littke, K.M., Zabowski, D., Turnblom, E.C., and Harrison, R.B. 2018. Estimating Shallow Soil Available Water Supply for Douglas-fir Forests of the Coastal Pacific Northwest: Climate Change Impacts. Can. J. For. Res. 48: 421-430.
Littke, K.M., Cross, J., Harrison, R.B., Zabowski, D., and Turnblom, E.C. 2017. Understanding spatial and temporal Douglas-fir fertilizer response in the Pacific Northwest using boosted regression trees and linear discriminant analysis. For. Ecol. Manage. 406: 61-71.
James, J., Littke, K., Bonassi, T., and Harrison, R. 2016. Exchangeable cations in deep forest soils: Separating climate and chemical controls on spatial and vertical distribution and cycling. Geoderma 279: 109-121.
Littke, K.M., Harrison, R.B., and Zabowski, D. 2016. Determining the Effects of Biogeoclimatic Properties on Different Site Index Systems of Douglas-fir in the Coastal Pacific Northwest. For. Sci. 62(5): 503-512.
Sampaio, T.F., Guerrini, I.A., Otero, X.L., Vazquez, F.M., Bogiani, J.C., Oliveira, F.C., Gava, J.L., Ciol, M.A., Littke, K.M., and Harrison, R.B. 2016. The Impact of Biosolid Application on Soil and Native Plants in a Degraded Brazilian Atlantic Rainforest Soil. Water Air Soil Poll. 227(1): 1-9.
Himes, A.J., Turnblom, E.C., Harrison, R.B., Littke, K.M., Devine, W.D., Zabowski, D., and Briggs, D. 2014. Predicting risk of long-term nitrogen depletion under whole-tree harvesting in the Coastal Pacific Northwest. For. Sci. 60(2): 382-390.
Littke, K.M., Harrison, R.B., Zabowski, D., and Briggs, D.G. 2014. Assessing Nitrogen Fertilizer Response of Coastal Douglas-fir in the Pacific Northwest using a Paired-tree Experimental Design. For. Ecol. Manage. 330: 137-143.
Littke, K.M., Harrison, R.B., Zabowski, D., Briggs, D.G. and Ciol, M. 2014. Prediction of Douglas-fir fertilizer response using biogeoclimatic properties in the Pacific Northwest. Can. J. For. Res. 44: 1253-1264.
Littke, K.M., Harrison, R.B., Zabowski, D., Briggs, D.G. and Maguire, D.A. 2014. Effects of geoclimatic factors on soil water, nitrogen, and foliar properties of Douglas-fir plantations in the Pacific Northwest. For. Sci. 60(6): 1118-1130.
Shryock, B., K. Littke, M. Ciol, D. Briggs, and R. Harrison. 2014. The effects of urea fertilization on carbon sequestration in Douglas-fir plantations of the coastal Pacific Northwest. For. Ecol. Manage. 318: 341-348.
Littke, K.M., Harrison, R.B., Briggs, D.G., and Grider, A.R. 2011. Understanding soil nutrients and characteristics in the Pacific Northwest through parent material origin and soil nutrient regimes. Can. J. For. Res. 41 (10): 2001-2008.
Littke, K.M. and Zabowski D. 2007. Calcium uptake, partitioning, and sinuous growth in Douglas-fir seedlings. For. Sci. 53 (6): 692-700.
Littke K. M.; Zabowski D. 2007. Influence of calcium fertilization on Douglas-fir foliar nutrition, soil nutrient availability, and sinuosity in coastal Washington. For. Ecol. Manage. 247 (1-3): 140-148.
Technical Papers
Littke, K.M., Littke, W.R. and Browning, J. 2006. Assessment of Baseline Soil and Foliar Nutrition in SW Washington Douglas-Fir Stands Infected with Swiss Needle Cast Disease. Weyerhaeuser Technical Report-Forest Health.
Professional / Outreach Publications
Littke, K.M. 2025. Exploring the Relationship Between Soils and Douglas-fir. Western Forester. 70(2). 1-3.
Littke, K.M. 2025. An Update to Best Management Practices for Maintaining Soil Productivity in the Douglas-fir Region. Western Forester. 70(2). 16-17.