EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/23/2019 | 11:15 AM - 11:30 AM | LANDSCAPE AND LAKE INFLUENCES ON GREAT LAKES COASTAL WETLAND WATER QUALITY | 151 DEF
LANDSCAPE AND LAKE INFLUENCES ON GREAT LAKES COASTAL WETLAND WATER QUALITY
Coastal wetlands of the Laurentian Great Lakes provide important ecosystem services and ecological functions to the region. Despite their value and role in mitigating effects of land-use, these ecosystems are susceptible to water quality impairments driven by runoff from the landscape. Using water quality monitoring data collected from coastal wetlands spanning the entire Great Lakes basin from 2011 to 2018, we assessed the influences of the landscape (developed and agricultural land-cover) and the open water (wave action, location) over time to better understand their combined influences on coastal wetland water quality variables (e.g., Cl-, NOx, SRP, TN and TP). Greater proportions of developed and agricultural land related to higher nutrient concentrations, whereas greater wave action was associated with lower nutrients. Lake-influenced lacustrine wetlands consistently had lower nutrients than riverine wetlands. Nutrients were higher in wetlands in the southern basin compared to wetlands in the northern basin, and Lake Huron had the lowest TP and SRP of all five Great Lakes. Our data showcase the importance of monitoring to understand nutrient and pollution trends in coastal wetlands, and support the need for management efforts focused on reducing nutrient and pollution loads.
- Water Quality
- Landuse
- Nutrients
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Presenters/Authors
Anna Harrison
(), Institute for Great Lakes Research, Central Michigan University, harri25a@cmich.edu;
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Matthew Cooper
(), Burke Center for Freshwater Innovation, Northland College, mcooper@northland.edu;
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Donald Uzarski
(), Institute for Great Lakes Research, Central Michigan University, uzars1dg@cmich.edu;
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