Translator Disclaimer
1 December 2009 Spatial Distribution of Historical Wetland Classes on the Des Moines Lobe, Iowa
Author Affiliations +
Abstract

We estimated the pre-settlement density and area of different classes of palustrine wetlands on the Des Moines Lobe based on soil characteristics. Six wetland classes, ranging from temporarily flooded to permanently flooded, were identified based on soil properties that persisted after artificial drainage. Prior to drainage, wetlands covered nearly half of the Des Moines Lobe and there were differences in both the types and relative abundance of wetlands among the four geologic subdivisions of the Lobe (Bemis, Altamont, and Algona till plains and Altamont Lake). In the flat Altamont Lake zone, the most common wetlands were equally split between temporarily flooded and saturated water regimes. Among the three till plain zones, saturated wetlands were the dominant wetland type. Differences in wetland distributions among the zones probably derive from differences in initial topography and post-glacial processes such as erosion-deposition processes and stream-network formation.

Bradley A. Miller, William G. Crumpton, and Arnold G. van der Valk "Spatial Distribution of Historical Wetland Classes on the Des Moines Lobe, Iowa," Wetlands 29(4), 1146-1152, (1 December 2009). https://doi.org/10.1672/08-158.1
Received: 3 July 2008; Accepted: 1 May 2009; Published: 1 December 2009
JOURNAL ARTICLE
7 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top