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Wisconsin/Michigan Pine Barrens

Ecoregion in WI, MI

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Irregular outwash plains and moraines, sandy and sandy-loam soils over outwash, sandy and loamy till, and peat deposits in depressions characterize the Wisconsin/Michigan Pine and Oak Barrens (50k) ecoregion. The features are a contrast to the extensive eskers and drumlins, and more loamy and silty soils of adjacent ecoregion 50j. Also, unlike the hardwood forests of ecoregion 50j to the west, 50k supports a PNV of white/red pine forests, jack pine forests, and oak forests and barrens. Land use in 50k is predominantly woodland, although some mixed agriculture is found. More frost-free days occur in 50k than in adjacent eastern ecoregions, due to the ameliorating effect of Lake Michigan and Green Bay, contributing to the greater agricultural component of the land cover/land use. In addition, 50k has more shallow bedrock than surrounding regions, with areas of exposed Precambrian basalt and granite.

— EPA

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