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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chin, Anne Anderson, Shannah Collison, Andrew Ellis Sugai, Barbara J. Haltiner, Jeffrey P. Hogervorst, Johan B. Kondolf, G. Mathias O’Hirok, Linda S. Purcell, Alison H. Riley, Ann L. Wohl, Ellen |
| Copyright Year | 2008 |
| Abstract | Step-pools sequences are increasingly used to restore stream channels. This increase corresponds to significant advances in theory for step-pools in recent years. The need for step-pools in stream restoration arises as urban development encroaches into steep terrain in response to population pressures, as stream channels in lower-gradient areas require stabilization due to hydrological alterations associated with land-use changes, and as step-pools are recognized for their potential to enhance stream habitats. Despite an increasingly voluminous literature and great demand for restoration using step-pool sequences, however, the link between theory and practice is limited. In this article, we present four unique cases of stream restoration using step-pools, including the evolution of the approaches, the project designs, and adjustments in the system following restoration. Baxter Creek in El Cerrito, California demonstrates an early application of artificial step-pools in which natural adjustments occurred toward geomorphic stability and ecological improvement. Restoration of East Alamo Creek in a large residential development near San Ramon, California illustrates an example of step-pools increasingly used in locations where such a channel form would not naturally occur. Construction of a step-pool channel in Karnowsky Creek within the Siuslaw National Forest, Oregon overcame constraints posed by access and the type and availability of materials; the placement of logs allowed natural scouring below steps. Dry Canyon Creek on the property of the Mountains Restoration Trust in Calabasas, California afforded a somewhat experimental approach to designing step-pools, allowing observation and learning in the future. These cases demonstrate how theories and relationships developed for step-pool sequences over the past two decades have been applied in real-world settings. The lessons from these examples enable us to develop considerations useful for deriving an appropriate course of design, approval, and construction of artificial step-pool systems. They also raise additional fundamental questions concerning appropriate strategies for restoration of step-pool streams. Outstanding challenges are highlighted as opportunities for continuing theoretical work. |
| Starting Page | 645 |
| Ending Page | 661 |
| Page Count | 17 |
| File Format | |
| ISSN | 0364152X |
| Journal | Environmental Management |
| Volume Number | 43 |
| Issue Number | 4 |
| e-ISSN | 14321009 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2008-07-29 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Step-pools River restoration Environmental management Human impacts Channel design Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Forestry Management Atmospheric Protection/Air Quality Control/Air Pollution Nature Conservation Ecology Environmental Management |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Pollution Global and Planetary Change |
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