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1 June 2009 An Ecosystem Restoration Model for the Mississippi Alluvial Valley Based on Geomorphology, Soils, and Hydrology
Charles Klimas, Elizabeth Murray, Thomas Foti, Jody Pagan, Malcolm Williamson, Henry Langston
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Abstract

Alternating braided and meandering stream flow regimes throughout the Quaternary Period have left a subtly complex landscape of depositional features within the Mississippi Alluvial Valley (MAV). Prior to European settlement, those variations produced tremendous spatial complexity and diversity within vast forested wetlands and extensive fire-maintained prairies and savannas, with the distribution of specific plant communities largely reflecting abiotic site characteristics such as geomorphology, soils, and hydrology. Agricultural development, river engineering, flood protection, and drainage projects over the past century have destroyed most of the natural vegetation and obscured the patterns of plant community distribution. Recent studies have established hydrogeomorphic criteria for wetland classification over a large part of the MAV. Detailed, spatially explicit geomorphology and soils data are available for the entire MAV, and hydrologic mapping has been completed in many areas. Thus, even in areas that are currently in agriculture, the tools exist to adapt the hydrogeomorphic classification and to develop maps of potential plant community distribution based on abiotic characteristics of sites. These Potential Natural Vegetation maps provide an indication of the multi-scale complexity that once characterized the MAV, and serve as planning tools for ecosystem restoration.

Charles Klimas, Elizabeth Murray, Thomas Foti, Jody Pagan, Malcolm Williamson, and Henry Langston "An Ecosystem Restoration Model for the Mississippi Alluvial Valley Based on Geomorphology, Soils, and Hydrology," Wetlands 29(2), 430-450, (1 June 2009). https://doi.org/10.1672/08-99.1
Received: 15 April 2008; Accepted: 1 January 2009; Published: 1 June 2009
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21 PAGES

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