NDLI: Temperate zone fens of the glaciated Midwestern USA

Content Provider	Springer Nature Link
Author	Amon, James P. Thompson, Carol A. Carpenter, Quentin J. Miner, James
Copyright Year	2002
Abstract	A study of more than 70 fens in the Midwestern United States and a review of the literature indicates that these temperate zone wetlands may differ from fens of the boreal zone and are not adequately differentiated from the by present classification systems. Fens of the Midwestern temperate zone 1) are wetlands with high botanical diversity, 2) are supported in part by ground water with conductivity > 100mS/cm and circumneutral pH, 3) contain water in the root zone during most of the growing season yet are not usually innndated, and 4) accumulate organic and/or carbonate substrates. Individually, none of these descriptors is adequate to distinguish fens from other wetland communities of the Midwest such as marshes, sedge meadows, and wet prairies; yet, when they are taken together, such discrimination is possible. While fens of this zone share many species, our study does not support using indicator species because too few are both faithfully represented and geographically widespread. Midwestern temperate fens are sustained by forces of climate, landscape, and geology, which permit ground water to seep continuously into the root zone in a focused location. Since water availability in the temperate Midwest is less than in the boreal zone, continuous discharge is needed to maintain the saturation conducive to peat formation.
Starting Page	301
Ending Page	317
Page Count	17
File Format	PDF
ISSN	02775212
Journal	Wetlands
Volume Number	22
Issue Number	2
e-ISSN	19436246
Language	English
Publisher	Springer Netherlands
Publisher Date	2002-01-01
Publisher Institution	Society of Wetland Scientists
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	fens mire ground water Midwestern USA hydrology chemistry hydrogeology flora soils temperate zone definition wet meadow sedge meadow peatland Freshwater & Marine Ecology Environmental Management Ecology Hydrogeology Coastal Sciences Landscape Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry

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