E. Gregory McPherson

Former Volunteer

Emeritus Scientist

Pacific Southwest Research Station

Publications & Products
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Treesearch Publications

Lara Roman, Natalie S. van Doorn, E. Gregory McPherson, Bryant C. Scharenbroch, Jason G. Henning, Johan P.A. Ӧstberg, Lee S. Mueller, Andrew K. Koeser, John Mills, Richard Hallett, John E. Sanders, John J. Battles, Deborah J. Boyer, Jason P. Fristensky, Sarah K. Mincey, Paula Peper, Jess Vogt. 2020. Urban tree monitoring: a field guide
Natalie S. van Doorn, Lara Roman, E. Gregory McPherson, Bryant C. Scharenbroch, Jason G. Henning, Johan P.A. Östberg, Lee S. Mueller, Andrew K. Koeser, John Mills, Richard Hallett, John E. Sanders, John Battles, Debra J. Boyer, Jason P. Fristensky, Sarah K. Mincey, Paula Peper, Jessica M. Vogt. 2020. Urban tree monitoring: a resource guide
E. Gregory McPherson, Allison Berry, Natalie S. van Doorn, James Downer, Janet Hartin, Darren Harver, Erica Teach. 2020. Climate-ready tree study: update for Southern California communities
E. Gregory McPherson, Qingfu Xiao, Natalie S. van Doorn, Nels G. Johnson, Shannon Albers, Paula Peper. 2018. Shade factors for 149 taxa of in-leaf urban trees in the USA
Natalie S. van Doorn, E. Gregory McPherson. 2018. Demographic trends in Claremont California’s street tree population
E. Gregory McPherson, Alison M. Berry, Natalie S. van Doorn. 2018. Performance testing to identify climate-ready trees
E. Gregory McPherson, A.M. Berry, Natalie S. van Doorn, J. Downer, J. Hartin, D. Haver, E. Teach. 2017. Climate-ready tree study – update for Central Valley communities
Qingfu Xiao, E. Gregory McPherson, Qi Zhang, Xinlei Ge, Randy Dahlgren. 2017. Performance of two bioswales on urban runoff management
E. Gregory McPherson, Qingfu Xiao, Natalie S. van Doorn, John de Goede, Jacquelyn Bjorkman, Allan Hollander, Ryan M. Boynton, James F. Quinn, James H. Thorne. 2017. The structure, function and value of urban forests in California communities
Xiang Li, Qingfu Xiao, Jianzhi Niu, Salli Dymond, E. Gregory McPherson, Natalie S. van Doorn, Xinxiao Yu, Baoyuan Xie, Kebin Zhang, Jiao Li. 2017. Rainfall interception by tree crown and leaf litter: an interactive process
E. Gregory McPherson, Q. Xiao, Natalie S. van Doorn, P. Peper, E. Teach. 2017. Surface storage of rainfall in tree crowns: not all trees are equal
Jason J. Griffin, William R. Jacobi, E. Gregory McPherson, Clifford S. Sadof, James R. McKenna, Mark L. Gleason, Nicole Ward Gauthier, Daniel A. Potter, David R. Smitley, Gerard C. Adams, Ann Brooks Gould, Christian R. Cash, James A. Walla, Mark C. Starrett, Gary Chastagner, Jeff L. Sibley, Vera A. Krischik, Adam F. Newby. 2017. Ten-year performance of the United States national elm trial
E. Gregory McPherson, Natalie S. van Doorn, E. Teach. 2017. Evaluation of six drought tolerant trees 17 years after planting in Northern California
Xiang Li, Jianzhi Niu, Linus Zhang, Qingfu Xiao, E. Gregory McPherson, Natalie S. van Doorn, Xinxiao Yu, Baoyuan Xie, Salli Dymond, Jiao Li, Chen Meng, Ziteng Luo. 2016. A study on crown interception with four dominant tree species: a direct measurement
E. Gregory McPherson, Natalie S. van Doorn, Paula Peper. 2016. Urban tree database and allometric equations
Yekang Ko, Lara Roman, E. Gregory McPherson, Junhak Lee. 2016. Does tree planting pay us back? Lessons from Sacramento, CA
E. Gregory McPherson, Natalie S. van Doorn, John de Goede. 2016. Structure, function and value of street trees in California, USA
Jun-Hak Lee, Yekang Ko, E. Gregory McPherson. 2016. The feasibility of remotely sensed data to estimate urban tree dimensions and biomass
S. J. Livesley, E. Gregory McPherson, C. Calfapietra. 2016. The urban forest and ecosystem services: impact on urban water, heat, and pollution cycles at the tree, street, and city scale
Qingfu Xiao, E. Gregory McPherson. 2016. Surface water storage capacity of twenty tree species in Davis, California
Yekang Ko, Jun-Hak Lee, E. Gregory McPherson, Lara Roman. 2015. Long-term monitoring of Sacramento Shade program trees: Tree survival, growth and energy-saving performance
Haider Taha, James Wilkinson, Robert Bornstein, Qingfu Xiao, E. Gregory McPherson, Jim Simpson, Charles Anderson, Steven Lau, Janice Lam, Cindy Blain. 2015. An urban-forest control measure for ozone in the Sacramento, CA federal non-attainment area (SFNA)
T.D. Paine, J.G. Millar, L.M. Hanks, J. Gould, Q. Wang, K. Daane, D.L. Dahlsten, E. Gregory McPherson. 2015. Cost-benefit analysis for biological control programs that target insects pests of eucalypts in urban landscapes of California
Yekang Ko, Jun-Hak Lee, E. Gregory McPherson, Lara Roman. 2015. Factors affecting long-term mortality of residential shade trees: evidence from Sacramento, California
E. Gregory McPherson, Alissa Kendall, Shannon Albers. 2015. Life cycle assessment of carbon dioxide for different arboricultural practices in Los Angeles, CA
E. Gregory McPherson, A. Kendall, S. Albers. 2015. Million Trees Los Angeles: Carbon dioxide sink or source?
E. Gregory McPherson, A.M. Berry. 2015. Climate ready urban trees for Central Valley cities
E. Gregory McPherson, Shannon Albers. 2014. Evaluation of seven drought tolerant tree species for central California
G. Gray, E. Gregory McPherson, C. Mills, E. Morehouse. 2014. Urban forest projects and California’s climate change policies and programs
E. Gregory McPherson. 2014. Monitoring Million Trees LA: Tree performance during the early years and future benefits
E. Gregory McPherson, Qingfu Xiao, Joe Purohit, Mark A. Dietenberger, Charles R. Boardman, Jim Simpson, Paula Peper. 2014. ecoSmart landscapes: a versatile SaaS platform for green infrastructure applications in urban environments
E. Gregory McPherson, Alissa Kendall. 2014. A life cycle carbon dioxide inventory of the Million Trees Los Angeles program
Lara Roman, E. Gregory McPherson, Bryant C. Scharenbroch, Julia Bartens. 2013. Identifying common practices and challenges for local urban tree monitoring programs across the United States
Richard Baldauf, E. Gregory McPherson, Linda Wheaton, Max Zhang, Tom Cahill, Chad Bailey, Christina Hemphill Fuller, Eearl Withycombe, Kori Titus. 2013. Integrating vegetation and green infrastructure into sustainable transportation planning
E. Gregory McPherson, Qingfu Xiao, Elena Aguaron. 2013. A new approach to quantify and map carbon stored, sequestered and emissions avoided by urban forests
E. Gregory McPherson, Robert Prince. 2013. Water scarcity and urban forest management: introduction
E. Gregory McPherson, Louren Kotow. 2013. A municipal forest report card: Results for California, USA
Robert F. Young, E. Gregory McPherson. 2013. Governing metropolitan green infrastructure in the United States
E. Gregory McPherson. 2012. Urban tree growth & longevity working group
E. Gregory McPherson, Bryant C. Sharenbroch. 2012. Urban tree growth & longevity: Introduction
E. Gregory McPherson, Paula Peper. 2012. Urban tree growth modeling
E. Gregory McPherson, Elena Aguaron. 2012. Comparison of methods for estimating carbon dioxide storage by Sacramento's urban forest
Alissa Kendall, E. Gregory McPherson. 2012. A life cycle greenhouse gas inventory of a tree production system
Qingfu Xiao, E. Gregory McPherson. 2011. Rainfall interception of three trees in Oakland, California
E. Gregory McPherson. 2011. Propelling arboriculture into the future
Jim Simpson, E. Gregory McPherson. 2011. The tree BVOC index
Qingfu Xiao, E. Gregory McPherson. 2011. Performance of engineered soil and trees in a parking lot bioswale
E. Gregory McPherson, Jim Simpson, Q. Xiao, C. Wu. 2011. Million trees Los Angeles canopy cover and benefit assessment
A.L. Soares, F.C. Rego, E. Gregory McPherson, Jim Simpson, Paula Peper, Q. Xiao. 2011. Benefits and costs of street trees in Lisbon
R. Baldauf, L. Jackson, G. Hagler, I. Vlad, E. Gregory McPherson, D. Nowak, T. Cahill, M. Zhang, R. Cook, C. Bailey, P. Wood. 2011. The role of vegetation in mitigating air quality impacts from traffic emissions
E. Gregory McPherson. 2010. Tools for valuing tree and park services
E. Gregory McPherson, R. Young. 2010. Understanding the challenges of municipal tree planting
E. Gregory McPherson, F. Ferrini. 2010. Trees are good, but…
Paula Peper, E. Gregory McPherson, Jim Simpson, Shannon Albers, Qingfu Xiao. 2010. Central Florida community tree guide: benefits, costs, and strategic planting
E. Gregory McPherson. 2010. Selecting reference cities for i-Tree Streets
E. Gregory McPherson, Jim Simpson, Paula Peper, Aaron M.N. Crowell, Qingfu Xiao. 2010. Northern California coast community tree guide: benefits, costs, and strategic planting
Katherine Unger, Divya Abhat., Connie I. Millar, E. Gregory McPherson. 2010. New focus on forests
P.J. Peper, E. Gregory McPherson, J.R. Simpson, Q. Xiao. 2009. City of Orlando, Florida municipal forest resource analysis
E. Gregory McPherson. 2009. Observing urban forests in Australia
E. Gregory McPherson. 2009. From frill to fundamental: The growing importance of science to the tree care industry
Paula Peper, E. Gregory McPherson, James R. Simpson, Kelaine Vargas, Qingfu Xiao. 2009. Lower Midwest community tree guide: benefits, costs, and strategic planting
M.R. McHale, I.C. Burke, M.A. Lefsky, Paula Peper, E. Gregory McPherson. 2009. Urban forest biomass estimates: is it important to use allometric relationships developed specifically for urban trees?
E. Gregory McPherson. 2008. Urban forestry and carbon: what the reporting protocol means to you
Kelaine Vargas, E. Gregory McPherson, James R. Simpson, Paula Peper, Shelley L. Gardner, Qingfu Xiao. 2008. Tropical community tree guide: benefits, costs, and strategic planting
Chunxia Wua, Qingfu Xiaoa, E. Gregory McPherson. 2008. A method for locating potential tree-planting sites in urban areas: a case study of Los Angeles, USA
E. Gregory McPherson, James R. Simpson, Qingfu Xiao, Wu Chunxia. 2008. Los Angeles 1-Million tree canopy cover assessment
Q. Xiao, E. Gregory McPherson, J.R. Simpson, S.L. Ustin. 2007. Hydrological processes at the urban residential scale
M.R. McHale, E. Gregory McPherson, I.C. Burke. 2007. The potential of urban tree plantings to be cost effective in carbon credit markets
E. Gregory McPherson. 2007. Benefit-based tree valuation
Paula Peper, E. Gregory McPherson, J.R. Simpson, S.L. Gardner, K.E. Vargas, Q. Xiao. 2007. City of Boise, Idaho Municipal Forest Resource Analysis
Paula Peper, E. Gregory McPherson, J.R. Simpson, S.L. Gardner, K.E. Vargas, Q. Xiao. 2007. New York City, New York Municipal Forest Resource Analysis
S. Rudnick, L. Linsen, E. Gregory McPherson. 2007. Inverse modeling and animation of growing single-stemmed trees at interactive rates
S. Brasch, L. Linsen, E. Gregory McPherson. 2007. Visualization of time-varying natural tree data
E. Gregory McPherson, James R. Simpson, Paula J. Peper, Shelley L. Gardner, Kelaine Vargas, Qingfu Xiao. 2007. Northeast community tree guide: benefits, costs, and strategic planting
Kelaine E. Vargas, E. Gregory McPherson, James R. Simpson, Paula Peper, Shelley L. Gardner, Qingfu Xiao. 2007. Interior West community tree guide: benefits, costs, and strategic planting
Kelaine Vargas, E. Gregory McPherson, James R. Simpson, Paula Peper, Shelley L. Gardner, Qingfu Xiao. 2007. Temperate Interior West community tree guide: benefits, costs, and strategic planting
E. Gregory McPherson. 2006. Urban forestry in North America
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.L. Gardner, K.E. Vargas, S.E. Maco, Q. Xiao. 2006. City of Charleston, South Carolina Municipal Forest Resource Analysis
D.E. Pataki, R.J. Alig, A.S. Fung, N.E. Golubiewski, C.A. Kennedy, E. Gregory McPherson, David J. Nowak, Richard Pouyat, P.R. Lankao. 2006. Urban ecosystems and the North American carbon cycle
K.E. Vargas, E. Gregory McPherson, J.R. Simpson, Paula Peper, S.L. Gardner, Q. Xiao. 2006. City of Albuquerque, New Mexico, Municipal Forest Resource Analysis
E. Gregory McPherson, James R. Simpson, Paula Peper, Shelley L. Gardner, Kelaine Vargas, Scott E. Maco, Qingfu Xiao. 2006. Piedmont community tree guide: benefits, costs, and strategic planting
E. Gregory McPherson, James R. Simpson, Paula Peper, Scott E. Maco, Shelley L. Gardner, Shauna K. Cozad, Qingfu Xiao. 2006. Midwest community tree guide: benefits, costs, and strategic planting
E. Gregory McPherson, James R. Simpson, Paula Peper, Shelley L. Gardner, Kelaine Vargas, Scott E. Maco, Qingfu Xiao. 2006. Coastal plain community tree guide: benefits, costs, and strategic planning
D.E. Pataki, R.J. Alig, A.S. Fung, E. Golubiewski, C.A. Kennedy, E. Gregory McPherson, David J. Nowak, Richard Pouyat, P. Romero Lankao. 2006. Urban ecosystems and the North American carbon cycle
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.L. Gardner, K.E. Vargas, S.E. Maco, Q. Xiao. 2005. City of Charlotte, North Carolina Municipal Forest Resource Analysis
Qingfu Xiao, E. Gregory McPherson. 2005. Tree health mapping with multispectral remote sensing data at UC Davis, California
L. Linsen, B.J. Karis, E. Gregory McPherson, B. Hamann. 2005. Tree growth visualization
S.E. Maco, E. Gregory McPherson, J.R. Simpson, Paula Peper, Q. Xiao. 2005. City of Berkeley, California Municipal Tree Resource Analysis
E. Gregory McPherson, J. Muchnick. 2005. Effects of street tree shade on asphalt concrete pavement performance
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.E. Maco, Q. Xiao. 2005. Municipal forest benefits and costs in five U.S. cities
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.E. Maco, S.L. Gardner, K.E. Vargas, S. Cozad, Q. Xiao. 2005. City of Minneapolis, Minnesota Municipal Tree Resource Analysis
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.L. Gardner, K.E. Vargas, Q. Xiao. 2005. City of Boulder, Colorado Municipal Tree Resource Analysis
Q. Xiao, S.L. Ustin, E. Gregory McPherson. 2004. Using AVIRIS data and multiple-masking techniques to map urban forest trees species
S.E. Maco, E. Gregory McPherson, J.R. Simpson, Paula Peper, Q. Xiao. 2004. City of San Francisco, California street tree resource analysis
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.E. Maco, Q. Xiao, E. Mulrean. 2004. Desert Southwest Community Tree Guide: Benefits, Costs and Strategic Planting
Paula Peper, E. Gregory McPherson, J.R. Simpson, S.E. Maco, Q. Xiao. 2004. City of Cheyenne, Wyoming Municipal Tree Resource Analysis
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.E. Maco, Q. Xiao, P.J. Hoefer. 2003. Northern Mountain and Prairie Community Tree Guide
E. Gregory McPherson, J.R. Simpson, Paula Peper, S.E. Maco, Q. Xiao. 2003. Benefit-cost analysis of Fort Collins' municipal forest
Paula Peper, E. Gregory McPherson. 2003. Evaluation of four methods for estimating leaf area of isolated trees
T.B. Randrup, E. Gregory McPherson, L.R. Costello. 2003. A review of tree root conflicts with sidewalks, curbs, and roads
S.E. Maco, E. Gregory McPherson. 2003. A practical approach to assessing structure, function, and value of street tree populations in small communities
E. Gregory McPherson. 2003. Urban forestry: The final frontier?
E. Gregory McPherson. 2003. A benefit-cost analysis of ten tree species in Modesto, California, U.S.A
E. Gregory McPherson, J.R. Simpson. 2003. Potential energy savings in buildings by an urban tree planting programme in California
Qingfu Xiao, E. Gregory McPherson. 2002. Rainfall interception by Santa Monica's municipal urban forest
E. Gregory McPherson, S.E. Maco, J.R. Simpson, Paula Peper, Q. Xiao, A. VanDerZanden, N. Bell. 2002. Western Washington and Oregon Community Tree Guide: Benefits, Costs and Strategic Planting
E. Gregory McPherson, J.R. Simpson. 2002. A comparison of municipal forest benefits and costs in Modesto and Santa Monica, California, U.S.A
S.E. Maco, E. Gregory McPherson. 2002. Assessing canopy cover over streets and sidewalks in street tree populations
H.-K Jo, E. Gregory McPherson. 2001. Indirect carbon reduction by residential vegetation and planting strategies in Chicago, USA
J. Simpson, E. Gregory McPherson. 2001. Tree planting to optimize energy and CO₂ benefits
Paula Peper, E. Gregory McPherson, Sylvia Mori. 2001. Predictive equations for dimensions and leaf area of coastal Southern California street trees
Paula Peper, E. Gregory McPherson, Sylvia Mori. 2001. Equations for predicting diameter, height, crown width, and leaf area of San Joaquin Valley street trees
T.B. Randrup, E. Gregory McPherson, L.R. Costello. 2001. Tree root intrusion in sewer systems: A review of extent and costs
E. Gregory McPherson. 2001. Sacramento's parking lot shading ordinance: environmental and economic costs of compliance
E. Gregory McPherson, J.R. Simpson, P.J. Peper, Q. Xiao, D.R. Pittenger, D.R. Hodel. 2001. Tree Guidelines for Inland Empire Communities
E. Gregory McPherson, J.R. Simpson, P.J. Peper, Q. Xiao. 2001. Benefit-cost analysis of Santa Monica's municipal forest
Qingfu Xiao, E. Gregory McPherson, Susan L. Ustin, Mark E. Grismer, James R. Simpson. 2000. Winter rainfall interception by two mature open-grown trees in Davis, California
Qingfu Xiao, E. Gregory McPherson, Susan L. Ustin, Mark E. Grismer. 2000. A new approach to modeling tree rainfall interception
E. Gregory McPherson. 2000. Expenditures associated with conflicts between street tree root growth and hardscape in California
E. Gregory McPherson, J.R. Simpson, P.J. Peper, Q. Xiao. 1999. Benefits-cost analysis of Modesto's municipal urban forest
K.I. Scott, J.R. Simpson, E. Gregory McPherson. 1999. Effects of tree cover on parking lot microclimate and vehicle emissions
E. Gregory McPherson, James R. Simpson. 1999. Carbon dioxide reduction through urban forestry: guidelines for professional and volunteer tree planters
P.J. Peper, E. Gregory McPherson. 1998. Comparison of five methods for estimating leaf area index of open-grown deciduous trees
P.J. Peper, E. Gregory McPherson. 1998. Comparison of four foliar and woody biomass estimation methods applied to open-grown deciduous trees
E. Gregory McPherson. 1998. Structure and sustainability of Sacramento's urban forest
Q. Xiao, E. Gregory McPherson, J.R Simpson, S.L. Ustin. 1998. Rainfall interception by Sacramento's urban forest
K.I. Scott, E. Gregory McPherson, J.R. Simpson. 1998. Air pollutant uptake by Sacramento's urban forest
E. Gregory McPherson. 1998. Atmospheric carbon dioxide reduction by Sacramento's urban forest
E. Gregory McPherson, N. Luttinger. 1998. From nature to nurture: the history of Sacramento's urban forest
J. Summit, E. Gregory McPherson. 1998. Residential tree planting and care: a study of attitudes and behavior in Sacramento, California
J.R. Simpson, E. Gregory McPherson. 1998. Simulation of tree shade impacts on residential energy use for space conditioning in Sacramento
E. Gregory McPherson, Klaus I Scott, James R. Simpson. 1998. Estimating cost effectiveness of residential yard trees for improving air quality in Sacramento, California, using existing models
J.R. Simpson, E. Gregory McPherson. 1997. The effects of roof albedo modification on cooling loads of scale model residences in Tucson, Arizona
E. Gregory McPherson, David J. Nowak, Gordon Heisler, Sue Grimmond, Catherine Souch, Rich Grant, Rowan Rowntree. 1997. Quantifying urban forest structure, function, and value: the Chicago Urban Forest Climate Project
E. Gregory McPherson, P.J. Peper. 1996. Costs of street tree damage to infrastructure
J.R. Simpson, E. Gregory McPherson. 1996. Potential of tree shade for reducing residential energy use in California
David J. Nowak, Rowan A. Rowntree, E. Gregory McPherson, Susan M. Sisinni, Esther R. Kirkmann, Jack Stevens. 1996. Measuring and analyzing urban tree cover
E. Gregory McPherson, R.A. Rowntree, J.A. Wagar. 1995. Energy-efficient landscapes
P.L. Sacamano, E. Gregory McPherson, J. Myhre, M. Stankovich, R.C. Weih. 1995. Describing urban forest cover: an evaluation of airborne videography
Hyun-Kil Jo, E. Gregory McPherson. 1995. Carbon Storage and Flux in Urban Residential Greenspace
E. Gregory McPherson. 1994. Cooling urban heat islands with sustainable landscapes
E. Gregory McPherson, David J. Nowak, Rowan A. Rowntree. 1994. Chicago's urban forest ecosystem: results of the Chicago Urban Forest Climate Project
E. Gregory McPherson. 1993. Monitoring urban forest health
E. Gregory McPherson, R.A. Rowntree. 1993. Energy conservation potential of urban tree planting
E. Gregory McPherson, David J. Nowak, Paul L. Sacamano, Scott E. Prichard, Edith M. Makra. 1993. Chicago's evolving urban forest: initial report of the Chicago Urban Forest Climate Project
J.F. Dwyer, E. Gregory McPherson, H.W. Schroeder, R.A. Rowntree. 1992. Assessing the benefits and costs of the urban forest
E. Gregory McPherson. 1992. Accounting for benefits and costs of urban greenspace
E. Gregory McPherson, S. Biedenbender. 1991. The cost of shade: cost-effectiveness of trees versus bus shelters
E. Gregory McPherson, James R. Simpson, Margaret Livingston. 1989. Effects of three landscape treatments on residential energy and water use in Tucson, Arizona
E. Gregory McPherson, R.A. Rowntree. 1989. Using structural measures to compare twenty-two U.S

Last updated March 10, 2026

E. Gregory McPherson

Treesearch Publications

Other Publications

Tree Guidelines for Coastal Southern California Communities

Tree Guidelines for San Joaquin Valley Communities