معرفی
Steven Perakis is a Courtesy Faculty member in the Department of Forest Ecosystems & Society at Oregon State University's College of Forestry. His research focuses on terrestrial ecosystem ecology and biogeochemistry, particularly nutrient cycling, watershed studies, and riparian biogeochemistry. He holds a B.S. from the University of Pennsylvania (1990), an M.S. from the University of Washington (1994), and a Ph.D. from Cornell University (2000).
Perakis’s work addresses how nitrogen and other nutrients interact with climate, disturbances, and ecosystem processes. Recent studies explore nitrogen fixation dynamics, climate change impacts on nutrient cycles, and the role of bedrock-derived nutrients in forest systems. He has contributed to guides on forest responses to air pollution and frameworks for scaling nitrogen fixation measurements.
His research integrates field experiments, isotopic tracing, and ecosystem modeling. Key findings include the discovery that nitrogen-fixing red alder trees access rock-derived nutrients and that nitrogen deposition weakens soil carbon control over nitrogen dynamics. Perakis collaborates widely, with publications addressing riparian ecosystem linkages, nutrient limitation patterns, and the ecological consequences of disturbances like fire.
