2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/08/2017 | 2:00 PM - 2:15 PM | Assessing Morphological Performance of Stream Restoration in North Carolina | 302A
Assessing Morphological Performance of Stream Restoration in North Carolina
Field assessment and multivariate statistical analyses were used to gauge functional uplift of restored streams. 157 restored, impaired and reference streams were assessed in North Carolina in 2006-2012. GIS-based watershed assessment was conducted for the restored streams and a selection of impaired and reference streams. Macroinvertebrates were collected from 85 of the restored streams. Two rapid stream assessment procedures were developed including the Eco-Geomorphological Assessment (EGA) and the Stream Performance Assessment (SPA). Three existing stream assessments were also applied at a subset of restored streams, including USEPA’s RBP, USDA’s SVAP and the Riparian Channel and Environmental Inventory. Several macroinvertebrate metrics were found to correlate with stream assessment variables. Adding watershed condition improved correlation in most cases. Morphological design parameters and geographic factors, including watershed and landscape parameters (e.g., valley slope, substrate) factors were compiled for 79 of the restored streams. Regression predictions of EPT taxa indicate that larger (wider) streams located in steeper valleys with larger substrate and undeveloped watersheds are expected to have higher numbers of dominant EPT taxa. In addition, EPT taxa numbers are positively correlated with floodplain width and negatively correlated with width-to-depth ratio and sinuosity.
- C16 Restoration Ecology
- C17 Bioassessment
- S26 Biological Success Criteria for Stream Restoration Project Monitoring: Are We Still Searching for Unicorns?
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Presenters/Authors
Barbara Doll
(), NC State University, bdoll@ncsu.edu;
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Greg Jennings
(), Jennings Environmental , LLC, jenningsenv@gmail.com;
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Jean Spooner
(), NC State University, jean_spooner@ncsu.edu;
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David Penrose
(), Penrose Environmental, penrose.watershed.science@gmail.com;
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