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Introduction to River Restoration. Geoscience in the U.S. Scientific history rooted in the study of rivers John Wesley Powell: 1869 tour of Grand Canyon.

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Presentation on theme: "Introduction to River Restoration. Geoscience in the U.S. Scientific history rooted in the study of rivers John Wesley Powell: 1869 tour of Grand Canyon."— Presentation transcript:

1 Introduction to River Restoration

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3 Geoscience in the U.S. Scientific history rooted in the study of rivers John Wesley Powell: 1869 tour of Grand Canyon 1881 appointed second director of USGS 1881 appointed second director of USGS Geologic studies and topographic mapping Geologic studies and topographic mapping Investigations of rivers and water resources Investigations of rivers and water resources Georef Citations: Keywords “river or fluvial” >198,000 entries dating back to 1801 (AGI, 2007)

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7 Coho Chinook

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11 Sockeye Spawning Humans Spawning

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13 “assisting the establishment of improved hydrologic, geomorphic, and ecological processes in a degraded watershed system and replacing lost, damaged, or compromised elements of the natural system” River Restoration Defined

14 Watershed Systems Characterized by geology, landforms, and climate Affected by local biotic and abiotic influences Comprised of multivariate subsystems with interdependent process-response mechanisms Watershed Assessment Objectives Identify features and processes important to fish habitat Determine the influence of natural processes Understand human activities and evaluate effects of land management OWEB (1999) Watershed Assessment Manual River management projects require a multi- disciplinary team approach

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23 Census of U.S. River Restoration Projects National River Restoration Synthesis Database Oregon Plan (OWEB) Outcomes >90 assessments since 1999 ~$180,000,000 in restoration 65 projects/1000 km river length (K. Bierly, (OWEB); Bernhardt et al., 2005)

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27 Watershed Project Activities Involving the Practice of Geology Map / air photo interpretation of geologic features Geologic and geomorphic mapping Geomorphic analysis (processes and landforms) Interpretation of the geologic record Hydrogeology and aquifer characterization Engineering geology (erosion and slope stability) Evaluation of geologic hazards

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