a changing environment

How does climate change influence northern ecosystems?

How can we model ecosystem response to climate change to better understand dynamic feedbacks? How does carbon move in systems impacted by climate change? In this project, we sampled Alaskan soils along a gradient of ecosystems undergoing rapid change from permafrost thaw. We measured rates of climate warming greenhouse gas production and other soil metabolic products to model soil and microbe response to climate change across different ecosystem types. Our results highlight the importance of using a chronosequence or a space-for-time substitution of different ecosystems to assess the potential dynamic response to climate change.

Date: 2010 - 2015
Location: Interior Alaska
Organization: Arizona State University
Collaborators/Credits: This project was lead by Eric Chapman in collaboration with Drs. Dan Childers, Hinsby Cadillo-Quiroz, and Everett Shock at Arizona State University, and Dr. Merritt Turetsky at the University of Guelph, Dr. Mark Waldrop at the U.S. Geological Survey.

Chapman EJ, Childers DL, Shock E, Turetsky MR (2016). A thermodynamic analysis of soil ecosystem development in northern wetlands. Wetlands 36: 1143-1153
Chapman EJ, Cadillo-Quiroz H, Childers DL, Turetsky MR, Waldrop MP. Soil microbial community composition is strongly linked to soil carbon processing along a boreal wetland formation gradient. In Review. European Journal of Soil Biology