


Research Philosophy
Part land, part water, wetlands are ecosystems in which water level and low oxygen support a unique variety of ecological habitats. The hydrologic and biologic nature of wetlands is not always understood by those who write and are expected to comply with wetland regulations. Many people are unaware of the connections between surface water and groundwater or the link between the two that wetlands often provide.
Values ascribed to wetlands include: providing habitats for fishing, hunting, waterfowl; timber harvesting; wastewater assimilation; improving water quality; flood control; and providing recreational values. These perceived values arise directly from the ecological functions found within wetlands. Ecosystem functions include hydrologic transfers and storage of water, biogeochemical transformations, maintaining atmospheric carbon balance, primary productivity, decomposition, and community/habitat.
Analysis of the relationship among wetland functions and values show that overutilization or intensive removal of wetland values (e.g. timber harvesting with drainage, peat harvesting) can often result in a loss of specific wetland functions (e.g., decreased water storage).
Further complicating the issue of appropriate wetland resource management, people want both the unfettered right to use their own land and the right to use unpolluted waters. The Duke University Wetland Center focuses on these important issues and provides a forum for scientific and policy analyses.
Challenge
Society must learn how to preserve, restore, and manage our dwindling wetland ecosystems to sustain ecological functions, maintain hydrologic integrity, and preserve community structure, all while allowing compatible development on adjacent landscapes. In the age of climate change, the challenge is even more urgent.
Research Is Needed To:
- Assess the impact of human values on ecological functions in wetlands.
- Develop management strategies for increasing wetland capacity for carbon sequestration.
- Develop restoration or reconstruction wetland procedures that result in functional replacement of wetlands.
- Devise best management practices for forestry and agriculture in or adjacent to wetlands to maintain water quality.
- Address wetland ecosystem functions and values with respect to upland systems on the landscape.
- Determine methods to evaluate wetland functions beyond their boundaries and far from adjacent landscapes.
- Evaluate wetlands in terms of scientific, economic and recreational factors.
Selected Research Goals
- Integrating ecological wetland functions and human wetland values.
- Using wetlands in the fight against climate change.
- Functional assessment of constructed wetlands versus natural wetlands.
- Restoration of wetlands.
- Assessment of wetland ecosystem functional response to highways.
- Paleoecological studies of wetlands and estuaries.
- Wetland hydrology, paleohydrology and hydrologic evolution.
Past Projects
- Everglades Research (1989-2008)
- Restoration Potential of the Iraqi Marshes (2003-2006)
- Phenolic Compounds and Black Carbon Feedback Controls on Peat Decomposition and Carbon Accumulation in Southeastern Peatlands (2014-2018)
- Carbon Sequestration Potential in Restored North Carolina Pocosins (2009-2013)
- High-accuracy Mapping of Peat Thickness Using Airborne Electromagnetics (AEM) (2017)
- Sources, transport, and Fate of Nitrogen and Phosphorus in the Upper Falls Lake Watershed, NC (2014-2018)
- Ecological Impacts from the Interactions of Climate Change, Land Use Change and Invasive Species (2008-2012)
- The Relationship Between Waterfowl Herbivory and wetland Methane Emission (2012-2017)
- Second Publication – https://dukespace.lib.duke.edu/server/api/core/bitstreams/05ef9d6a-77fb-4355-a8ef-789db8eae59b/content
- Differential Nutrient Limitation (2008-2013)
- A Bayesian Hierarchical Modeling Approach (2005-2007)
- Comparison of Wetland Functions and Services on Restored Wetlands of the Piedmont: Carbon and Nitrogen Storage and Gaseous Release Estimates (2008-2013)
- Mecklenburg County Little Sugar Creek Project (2001-2006)
- Role of Sediment Processes in Controlling Water Quality in the Cape Fear River (2002-2003)
- Effects of Highway Construction on Wetlands (phase 1: 1995-1997, phase 2: 1998-2003)
- Ecological and Economic Criteria for Successful Wetland Restoration (1998-2005)
- History of Water Quality in the Neuse & Pamlico Estuaries (1998-2000)