Adding a surface rock layer (also called rock armor or rock mulch) to constructed slopes improves erosion resistance but has had mixed effects on revegetation. This study investigated the effects of rock layer depth (no rocks, 10-, 15-, and 20-cm rock layers) and rock size (5-20cm diameter rocks) on vegetation cover. Seeding was applied four times in the first 2 years. After 3 years, plots with a rock layer averaged 7% vegetative cover compared to 85% on plots without a rock layer. There was a nonsignificant trend toward less vegetation with a deeper rock layer.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/627088 |
| Date | 07 November 2017 |
| Creators | Fehmi, Jeffrey S. |
| Contributors | Univ Arizona, Sch Nat Resources & Environm, School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA |
| Publisher | TAYLOR & FRANCIS INC |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | Article |
| Rights | © 2017 Taylor & Francis |
| Relation | https://www.tandfonline.com/doi/full/10.1080/15324982.2017.1391356 |
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