Welcome !

We are an urban forestry & greening research lab based in the Department of Wood & Forest Sciences, Faculty of Forestry, Geography, and Geomatics at the Université​ Laval. We focus on transdisciplinary, applied, and collaborative research to build sustainable and resilient communities, while managing and finding nature-based solutions to improve urban and periurban areas for people, wildlife, and ecosystems. Our group is affiliated with the Research Chair on Urban Trees and its Environment (CRAUM), which aims to develop and design new tools for conserving and integrating of trees in urban cities. Our lab is deeply intrigued by the prospect of delving into and assessing the human anthropogenic impacts on urban forests and soils. Our work is positioned at the science-policy interface, and we work to bridge the science-society divide by working closely with practitioners, industry communities, and government. We welcome opportunities to perform collaborative research within and outside of academic settings. Feel free to get in touch with us!
News and Updates
January 2026. Janani Sivarajah recently visited Shahjalal University of Science and Technology (SUST) in Bangladesh through the Programme de mobilité professorale pour le développement de collaborations internationales en recherche 2025‑2026, supported by the VRRCI at Université Laval. Learn more here !

January 2026. CRAUM is hiring summer 2026 research assistants – Apply now! Send your application to [email protected]. More information here.

December 2025. Congratulations to Md Ahosan Habib Ador, PhD candidate in the Sivarajah Lab, on successfully passing his doctoral examination !

November 2025. Three CRAUM students present research at SIAQ 2025 autumn arboriculture meeting !

October 2025. New experimental biodiversity plot established on the Université Laval Campus !

September 2025. Ravosoa Ramaroson, interviewed by ULaval News, shares why leaves change color in the fall—discover her explanation here!

August 2025. Janani Sivarajah participated in two interviews on CBC and BBC.

July 2025. New Opportunities: Master’s, PhD, and Post-Doc in Urban Ecology – see ‘Join the Lab’ section.

June 2025. Congratulations to the 2025 Labo Sivarajah award recipients! Discover our students’ scholarships and awards here.
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June 2025. Two radio interviews with Janani Sivarajah on the emerald ash borer !

May 2025. The NASER training, supported by NSERC and focused on urban soils and greening, has now concluded and it was a great success !

May 2025. The Labo Sivarajah team will be attending the 2025 CEF Annual Conference on May 6–7–8 !

April 2025. New master's project opportunity to help restore the American elm! See the "Join the Lab" section for details! (FILLED)

Mars 2025. Congratulations to Annabelle Poulin for being selected as youth delegate and receiving the scholarship to attend the conference in Minnesota, Minneapolis !

February 2025. Congratulations to Louis-Vincent for his involvement in the ULaval community campaign 2025 !

February 2025. Vote for the 'Projet Technosol' as the favorite initiative in the Québec Circulaire Circular Initiative Awards edition.

January 2025. Article with Janani Sivarajah, Carly Ziter, Line Rochefort, and Joan Laur in the special edition of the magazine Québec Vert, highlighting the journeys of women in the scientific field. Read it right here !