PIPages
Labs

Georgia Seyfried

Oregon State University, OR·Ecology & Evolution

Fuel buildup and drier conditions are making wildfires more frequent across western forests. In dry forests, repeated fire often lowers soil fertility.

Fields

Ecology & Evolution

Earth & Environmental Science

Plant Science & Agriculture

Topics

wildfire

short-interval reburns

high-severity fire

Grants
1 known grant, through May 2029

What they work on

  1. Characterize interactions among regenerating vegetation, soil fertility and microbial communities after single high-severity fires and short-interval reburns in wet western Cascade conifer forests, using field surveys.
  2. Reconstruct the timescale of soil recovery by comparing sites that burned at different times, combining field sampling and field manipulations.
  3. Measure the contribution of photodegradation, sunlight-driven breakdown of plant litter, to decomposition, and separate microbial community effects from soil property effects in laboratory experiments.

More about the research

It is unclear whether the same happens in wetter, more productive forests that historically burned rarely, such as the conifer forests of the western Cascade Mountains in the Pacific Northwest. This project asks how soils recover after severe fire and after short-interval reburns, when a site burns again within a short time, and how plants, soils and microbes interact during that recovery.

Why it matters

As wildfires return more often to wet Pacific Northwest conifer forests, land managers need to know how quickly soils recover and whether reburns lower fertility. Predicting soil recovery trajectories could help managers decide where to focus post-fire forest regeneration, rehabilitation and restoration.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Effects of short-interval wildfires on interactions among plants, soils, and microbes in Pacific Northwest conifer forests

NSF · Jun 2026 – May 2029

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The school

Oregon State University: 29 labs on PI Pages, $372M a year on research, 238 research doctorates a year.

More about Oregon State University

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