Research Associate Professor

Picture of Fereidoun RezanezhadSoil and Environmental Physics, Critical Zone Hydrogeochemistry, Winter Soil Processes, Aquatic-Terrestrial Biogeochemistry

Associate Editor:

  • Journal of Hydrology
  • Canadian Journal of Soil Science
  • Mires and Peat

Mercator Fellow in Baltic TRANSCOAST Research Training Group

Co-op Program Coordinator of the Ecohydrology Research Group

My research broadly focuses on the effects of climate change and management practices, on the fate of soil carbon, nutrients and fluxes between atmosphere and soil, and on understanding the fundamental mechanisms controlling the fate and movement of elements within soils, sediments, and surface waters, from both physical and hydrogeochemical perspectives. My primary research focus is the investigation of the mechanisms of carbon and nutrient retention and elimination within critical reactive interfaces (e.g.,the capillary fringe, riparian areas, hyporheic zone) using a combination of data synthesis, field, laboratory, and computational approaches that quantify their hydrological and biogeochemical connectivity at the field and watershed scales in the context of ongoing and future climate and land use changes. My fundamental and applied research on soil physical and hydrogeochemical approaches has contributed to the understanding of the complex processes in the natural critical zoneenvironmentas an integrated system, and how these processes are better informed by an improved examination of critical zonephysical and hydro(bio)geochemistry. I am an expert in novel laboratory/field techniques and he recently developed and implemented novel techniques in the lab, including automated water table fluctuating soil column system, automated freeze-thaw cycle soil column system, an automated flow injection switch-box, different pore water sampling devices, and high resolution electrochemistry sensors, for innovative research projects, which will allow to advance to understand the response of soil processes to dynamic hydrological and climatic drivers, from local to regional scales. My fundamental and applied research on physical and hydrogeochemical approaches has contributed to the understanding of biogeochemical processes at aquatic-terrestrial interfaces. I have extensive field experience in terrestrial and wetland ecosystems, specifically with soil and water quality, and nutrient and greenhouse gas flux monitoring. Since 2014, I have been a PI, Co-PI or collaborator on grants totalling more than $12.8M  from a diversity of funding sources, including NSERC, CFI, Global Water Futures, Qatar National Research Fund and others. Recognized for my dedication to international research collaborations (DFG Mercator Fellow), I have trained >50 PhD, MSc and BSc students and Postdoctoral Fellows. 

My current research areas include studies on:

  • Hydrogeochemical processes of aquatic-terrestrial interfaces
  • Biogeochemical cycles of nutrients
  • Terrestrial ecosystem processes
  • Groundwater-surface water interactions
  • Hydrological and biogeochemical processes of peatlands and wetlands
  • Seasonal freeze/thaw dynamics
  • CO2, N2O and CH4 production and fluxes
  • Flow and transport in porous media (particularly in complex dual-porosity)
  • HydroBioGeoPhysics: Geophysical methods to assess subsurface biogeochemical processes
  • Reactive Interfaces in Agroecosystem
  • ​Winter Soil Processes
  • Peatland and Permafrost Processes

Curriculum Vitae


Office: EIT 2006

Phone: 519-888-4567 ext. 31328


University of Waterloo

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