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Forested Watershed Management:
Water and aquatic resources as the wave of the future for forest management
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Cedar River Watershed, Washington
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New York State Catskill State Park: 705,000 acres total 292,000 state owned
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Quabbin Reservoir MA
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Selected Key Elements of Forest Watershed Management:
Riparian Buffer Delineation and Management Cumulative Effects Analysis Watershed Analysis
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Riparian zone Three-dimensional zones of direct interaction between terrestrial and aquatic ecosystems (Gregory et al. 1991)
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An Idealized Riparian Zone
Nutrient uptake/filtration Sediment retention Bank stabilization Stream discharge Stream temperature Light availability Organic inputs (inverts, leaves & POM, wood) Aquatic communities (periphyton, invert., vert.) 6 Maser and Sedell 1994
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Little Moose Outlet
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3) Temperature 2 Johnson and Jones 2000(S2)
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4) Nutrient filtration 3 Field Lowrance et al. 1997 (Buffer Width)
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5) Bank Stabilization Photo by Rebecca Schneider
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6) Sediment retention Wenger 1999
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7) Organic inputs: a) terrestrial invertebrates
Kawaguchi and Nakano 2001
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Riparian Buffers Two Key Questions: 1. How wide and where? 2. What management inside the buffers is appropriate?
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Distance from Channel (Site Potential Tree Height)
Coarse Woody Debris to Streams Root Strength 100% Shading Litter Fall Cumulative Effectiveness 0% 0.2 0.5 1.0 Distance from Channel (Site Potential Tree Height)
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RIPARIAN BUFFERS
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Areas prone to small landslides and debris torrents
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Cumulative Effects Analysis
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TMDL Development by Watershed and Waterbody
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Nitrogen Phosphorous Sediment
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Watershed Analysis Watershed analysis is a procedure used to characterize the human, aquatic, riparian, and terrestrial features, conditions, processes, and interactions within a watershed. It provides a systematic way to understand and organize ecosystem information. Watershed analysis enhances our ability to estimate direct, indirect, and cumulative effects of management activities and guide the general type, location, and sequence of appropriate management activities within a watershed
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Federal Watershed Analysis Procedure
Step 1. Characterize the watershed Step 2. Identify issues and key questions Step 3. Describe current conditions Step 4. Describe reference conditions Step 5. Synthesize and interpret results Step 6. Develop recommendations
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Modules Erosion processes Hydrology Vegetation Stream channel
Water quality Species and habitats (aquatic and terrestrial) Human uses
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Watershed Analysis Products
A description of the watershed, including its natural and cultural features A description of the beneficial uses and values When supporting data allow, statements about compliance with water quality standards A description of the distribution, type, and relative importance of environmental processes A description of the watershed’s present condition relative to its associated values and uses A map of possible riparian reserves or buffers
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