2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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5/27/2021 | 2:00 PM - 3:30 PM | FUNCTIONAL IMPROVEMENTS IN WETLANDS RESTORED FROM ROW CROP AGRICULTURE VARY AS WETLANDS AGE | Virtual Platform

FUNCTIONAL IMPROVEMENTS IN WETLANDS RESTORED FROM ROW CROP AGRICULTURE VARY AS WETLANDS AGE

Wetland ecosystems perform important functions, such as nutrient retention, sediment removal, and flood attenuation. Restoration efforts are being implemented to recover lost function, but the recovery of these functions over time is still poorly understood. The objective of our study was to determine the recovery rate of five wetland functional proxies in riparian wetlands restored from row crop agriculture in the Mississippi Alluvial Valley, USA. We evaluated wetlands along a chronosequence from 1 to 13 years since restoration. Our results show that General Function recovered rapidly with age and matched reference wetlands within 13 years. Plant Function also recovered rapidly with age, but after 13 years restored wetlands maintained significantly different plant function from reference wetlands. Flood Attenuation Function, Invertebrate Function, and Sedimentation Function showed weak or no response to wetland age. To support functional recovery, wetland restorations should focus on maintaining microtopographic features and perennial plant richness. Study results highlight the benefits of using proxies for wetland function to monitor restored wetlands over time.

Monitoring
Adaptive management
Ecosystem

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Presenters/Authors

Kinga Stryszowska-Hill (), Murray State University, stryszowskakinga@gmail.com;