River Restoration Strategies and Historical Context in Oregon
Discover the comprehensive approach to river restoration in Oregon, focusing on watershed assessment, salmonid habitat, fluvial hydrology, riparian vegetation, and channel modification. Explore the historical framework and the most common remedial actions implemented for improving hydrologic, geomorphic, and ecological processes in river ecosystems. Gain insights from the ES407 Senior Seminar Working Group at Western Oregon University as they discuss key aspects of river restoration and management, bridging past practices with modern conservation efforts.
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Presentation Transcript
ES407 Senior Seminar Working Group Earth and Physical Science Department Western Oregon University Monmouth, Oregon
River Restoration Restoration Defined: Improving hydrologic, geomorphic, and ecological processes Replacing lost or damaged elements of the natural system Oregon Plan for Salmon and Watersheds: Restoring fish populations and aquatic systems OWEB: 1997 Legislation (Lottery Fund)
Historical Framework Lewis and Clark Expedition ca. 1805 Hudson s Bay Co. Trappers ca. 1830-1840 Willamette Valley Settlement ca. 1840-1880 Logging and Timber Industry Agricultural Development Columbia Basin Dam Projects ca. 1930-1950 s Urbanization of Puget-Willamette Lowland Moral of Story: 150 200 years of intensive management
Most Common Remedial Actions Riparian Vegetation / Planting: Tree cover for stream channels Invasive plant mitigation Large Woody Debris Replenishment: LWD placement and recruitment Erosion Mitigation Fish Passage: Culverts and dams
Session Overview Katie Halvorson: Watershed Assessment and River Restoration Strategies Dylan Castle: Salmonid Habitat as a Guiding Principle in River Restoration Ryan Johnson: Fluvial Hydrology, Fish Passage, and Sedimentation Ian McBride: Riparian Vegetation, Land Use and Habitat Restoration Esteban Quiles: Channel Modification and Restoration
Five-Minute River Interlude https://www.youtube.com/watch?v=8Jq1U8JyHW4 Youtube - Salmon Spawning
