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Candidate soil indicators for monitoring the progress of constructed wetlands toward a natural state: a statistical approach

Wetlands

By:
, , , ,
DOI: 10.1007/s13157-013-0464-3

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Abstract

A persistent question among ecologists and environmental managers is whether constructed wetlands are structurally or functionally equivalent to naturally occurring wetlands. We examined 19 variables collected from 10 constructed and nine natural emergent wetlands in Ohio, USA. Our primary objective was to identify candidate indicators of wetland class (natural or constructed), based on measurements of soil properties and an index of vegetation integrity, that can be used to track the progress of constructed wetlands toward a natural state. The method of nearest shrunken centroids was used to find a subset of variables that would serve as the best classifiers of wetland class, and error rate was calculated using a five-fold cross-validation procedure. The shrunken differences of percent total organic carbon (% TOC) and percent dry weight of the soil exhibited the greatest distances from the overall centroid. Classification based on these two variables yielded a misclassification rate of 11% based on cross-validation. Our results indicate that % TOC and percent dry weight can be used as candidate indicators of the status of emergent, constructed wetlands in Ohio and for assessing the performance of mitigation. The method of nearest shrunken centroids has excellent potential for further applications in ecology.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Candidate soil indicators for monitoring the progress of constructed wetlands toward a natural state: a statistical approach
Series title:
Wetlands
DOI:
10.1007/s13157-013-0464-3
Volume
33
Issue:
6
Year Published:
2013
Language:
English
Publisher:
Springer
Contributing office(s):
Great Lakes Science Center
Description:
12 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1083
Last page:
1094
Number of Pages:
12
Country:
United States
State:
Ohio
Other Geospatial:
Medallion No. 20 Wetland;Pizzuti Wetland;Sacks Wetland;Bluebird Wetland;Trotwood Wetland;Prairie Lane Wetland;Slate Run Bank Se Wetland;Jmb Mitigation Wetland;Big Island Area D Wetland;New Albany Hs Wetland;Eagle Creek Marsh Wetland;Baker Swamp Wetland;Rickenbacker Wetland;Ballfield Wetland;Denver Wetland;Lodi North Wetland;Lake Abrams Wetland;Calamus Wetland;Eagle Creek Beaver Wetland