Show simple item record

dc.contributor.authorWilcox, Douglas A.
dc.contributor.authorBaedke, Steve J.
dc.contributor.authorThompson, Todd A.
dc.date.accessioned2022-10-04T15:09:51Z
dc.date.available2022-10-04T15:09:51Z
dc.date.issued2020
dc.identifier.doi10.1007/s13157-020-01302-8
dc.identifier.urihttp://hdl.handle.net/20.500.12648/7661
dc.description.abstractBeach ridges and wetland swales formed in embayments along Great Lakes shorelines during Holocene lake-level changes. Vegetation differences among swales suggested influence from differing groundwater flow systems. We characterized the hydrology across 79 ridge/swale wetlands in the Manistique/Thompson embayments of Lake Michigan using chemical and physical methods. Cross-sections were built from geologic data, and nested piezometers were installed across three ridges/swales where upwelling was noted. Stainless steel piezometers driven in 30 swales were sampled and water analyzed for specific conductance, alkalinity, and major ions. Surface water from 11 swales was analyzed. Water dominated by Ca-Mg-HCO3 was prevalent across the strandplain, with specific conductance generally less than 100 μS/cm. Conductivity, Ca, Mg, and HCO3 in groundwater were greater at identified groundwater discharges; where an amalgamated beach ridge forms a surficial groundwater divide; and swales nearer Lake Michigan that likely receive greatly mineralized water from a deeper aquifer. Repositioning of the shoreline as the embayments filled over the past 4700 years, coupled with isostatic rebound and changes in lake water levels, altered head differentials and changed the sources of discharge from local, intermediate, and deep flow systems over time. Extant plant communities are consistent with the groundwater dependence of these wetlands.en_US
dc.language.isoN/Aen_US
dc.publisherWetlandsen_US
dc.subjectGroundwater Hydrologyen_US
dc.subjectGeochemistry--Lake Michiganen_US
dc.subjectMultiple Flow Systemsen_US
dc.subjectRidge/swale Wetlandsen_US
dc.subjectLake Michiganen_US
dc.titleA Complicated Groundwater Flow System Supporting Ridge-and-Swale Wetlands in a Lake Michigan Strandplainen_US
dc.typeArticle/Reviewen_US
dc.source.journaltitleWetlands V. 40en_US
dc.description.versionVoRen_US
refterms.dateFOA2022-10-04T15:09:52Z
dc.description.institutionSUNY Brockporten_US
dc.description.departmentDepartment of Environmental Science and Ecologyen_US
dc.description.degreelevelN/Aen_US


Files in this item

Thumbnail
Name:
Wetlands 40 1481-1493 2020.pdf
Size:
1.097Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record