Permafrost Region Greenhouse Gases


Climate change affects many northern ecosystems such as wetlands, peatlands and permafrost soils, which store a lot of carbon and nitrogen in organic matter. Therefore, these ecosystems have the potential to enhance climate warming through carbon losses from these soils. However, they also have the potential to offset climate warming through continued carbon accumulation in soils and therefore wetlands and permafrost soils are an important component in the carbon cycle.

Our research group focuses on measuring the exchange of greenhouse gases, including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), and understanding the soil processes underlying these fluxes using observations, experiments, modeling, and data synthesis. We work largely in peatlands, wetlands, and permafrost soils. Our projects focus on carbon and nitrogen interactions, cold-season biogeochemical processes, methane emissions from northern wetlands, and permafrost dynamics in northern wetlands. We hope that by understanding these important ecosystems, we can better understand and address climate change and the role of these ecosystems as carbon sinks or sources in the past, present, and future.


12 March 2021

Claire published a paper with the title: "The role of wetland expansion and successional processes in methane emissions from northern wetlands during the Holocene ",

1 January 2021

We welcome Katharina in our group who starts her PhD in the FluxWin-Project.

29 October 2020

Claire and Lona returned from a successful field campaing in Finland. See their FluxWIN Expedition report.

Teaching/ Student opportunities

Research Network


Publications/ Datasets

Team member

Dr. Claire Treat (Group lead)

Dr. Lona van Delden (PostDoc) [ Profile page]

Dr. Matthias Fuchs (PostDoc) [ Profile page]

Katharina Jentzsch (PhD candidate)

Johanna Schwarzer (Master student)

Melissa Laurent (Student intern)