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Changwoo Ahn, Ph.D.

Ahn’s work includes planning, designing, and analyzing different scenario (simulation)-based restoration alternative for the Illinois large river-floodplain ecosystem targeting the Emiquon site, the largest floodplain re-connection project on the Upper Mississippi River, working with The Nature Conservancy, National Science Foundation, Corps of Engineers, USGS, farmers, landowners, and other stakeholders


  • Professor
  • Graduate Program Director


Department of Environmental Science and Policy, George Mason University


Changwoo Ahn’s research centers on wetland ecosystem ecology, system ecology, and ecological engineering. Ahn’s dissertation work focused on designing and constructing wetlands to improve water quality by reuse of combustion by-products (i.e., wastes for landfills) from power plants in the Midwest, incorporating system ecological approaches. Ahn studied biogeochemical and ecological processes in a human-created wetland complex at the Olentangy River Wetland Research Park (ORWRP), now designated as the 24th Ramsar (i.e., a wetland of international importance) site in the United States. Ahn served as a consultant and participant in the making of the television documentary titled “Restore wetlands as a resource for the future” by Korea Broadcasting System (KBS ) for the RAMSAR International Conference in 2008.

Recent Publications:

Schmidt S. and Ahn, C. 2021. Analysis of Soil Color Variables and their Relationship between Two Field-Based Methods and its Potential Application for Wetland Soils. Science of the Total Environment 783 (in press) doi: 10.1016/j.scitotenv.2021.147005

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