Program Director for Bachelor of Urban Forestry
Research Interests:
Forest Sciences Centre
2424 Main Mall
Vancouver, BC V6T 1Z4
work phone: 6048226652

My work focuses on below-ground systems of urban forests and how they affect ecosystem service provision. This focus allows me to address a variety of contemporary challenges faced by cities in managing their urban forests. Particular interests are stormwater management as mediated by the below-ground system, soil carbon, managing urban soils during land development, and manufactured, blended and engineered soils. As part of the soils technical committee for the Sustainable Sites Initiative (SITES®), I helped develop sustainability standards for soils during site development. I have a long-standing interest in linking design and ecological processes to solve urban problems and my teaching and research reflect this interest. I enjoy working closely cities and private practice to help address the many challenges of the urban environment.

Research Areas

urban soils
stormwater management
greeninfrastructure design
soil carbon
land development

Current Courses


Selected Publications

Pouyat, R.V., Day, S., Brown, S., Schwarz, K., Shaw, R., Szlavecz, K., Trammell, T.L.E., and I.D. Yesilonis. (2019). Urban Soils. In Patel-Weynand, T., Pouyat, R.V., and L. Geiser (Eds.). Forest and Rangeland Soils of the United States under Changing Conditions: A comprehensive science synthesis. Gen. Tech. Report WO- (in press) U.S. Forest Service, Research and Development, Washington, D.C.
Wiseman, P.E. and S.D. Day (2018). Greening the City—Are We Bringing Foresters to the Table? The Forestry Source 23(6): 12-13.
Fields-Johnson, C.W., J.H. Fike, J. M. Galbraith, R.O. Maguire, S.D. Day, S.M. Zedaker, and J.E. Mathis. (2018). Pine sawdust biochar as a potential amendment for establishing trees in Appalachian mine spoils REFORESTA 6:1-14
• Jian, J., M.K. Steele, S.D. Day, R.Q. Thomas and S. Hodges. (2018). Future global soil respiration rates will swell despite regional decreases in temperature sensitivity caused by rising temperatures. Earth’s Future 6, 1539–1554
Jian, Jinshi, M. K. Steele, S. D. Day, R. Q. Thomas, and S.C. Hodges. (2018). Measurement strategies to account for temporal heterogeneity in soil respiration across diverse regions. Soil Biology and Biochemistry 125:166-177
O’Herrin**, K.O., S.D. Day, P.E. Wiseman, J. Munsell, and C. Friedel (2018). University student perceptions of urban forestry as a career path. Urban Forestry & Urban Greening 34:294-304
De la Mota Daniel*, F.J., S.D. Day, J.S. Owen, R.D. Stewart, M.K. Steele, and V.R. Sridhar (2018). Porous-permeable pavements promote growth and establishment and modify root depth distribution of Platanus ×acerifolia (Aiton) Willd. in simulated urban tree pits. Urban Forestry & Urban Greening 33:27-36
Jian, J., M.K. Steele, R.Q. Thomas, S.D. Day and S. Hodges. (2018). Constraining estimates of global soil respiration by quantifying sources of uncertainty. Global Change Biology 24:4143-4159
O’Herrin**, K., P.E. Wiseman, S.D. Day, and W. Hwang (2018). Identifying a career ladder in urban forestry by analyzing job postings and interviews. Journal of Forestry 116 (2): 151–163
Trammell, T.L.E., S.D. Day, R.V. Pouyat, C. Rosier, B. Scharenbroch, and I. Yesilonis (2018). Drivers of Urban Soil Carbon Dynamics.(pp. 93-120) In Advances in Soil Science: Urban Soils. R. Lal and B.A. Stewart (Eds.) Taylor and Francis
Scharenbroch, B., S. D. Day, T.L.E. Trammell, and R.V. Pouyat. (2018). Urban Soil Carbon Storage. In Advances in Soil Science: Urban Soils. R. Lal and B.A. Stewart (Eds.) Taylor and Francis