for 272 forested watershed management: water and aquatic resources as the wave of the future for...
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FOR 272 Forested Watershed Management: Water and aquatic resources as the wave of the future for forest management. Cedar River Watershed, Washington. New York State Catskill State Park: 705,000 acres total 292,000 state owned. Quabbin Reservoir MA. - PowerPoint PPT PresentationTRANSCRIPT
FOR 272
Forested Watershed Management:Water and aquatic resources as the wave of
the future for forest management
Cedar River Watershed, Washington
New York State
Catskill State Park:
705,000 acres total
292,000 state owned
Quabbin Reservoir MA
Selected Key Elements of Forest Watershed Management:
1. Riparian Buffer Delineation and Management
2. Cumulative Effects Analysis
3. Watershed Analysis
Riparian zone
• Three-dimensional zones of direct interaction between terrestrial and aquatic ecosystems (Gregory et al. 1991)
An Idealized Riparian Zone
Maser and Sedell 1994
6
• Nutrient uptake/filtration • Sediment retention• Bank stabilization• Stream discharge • Stream temperature• Light availability• Organic inputs (inverts, leaves & POM, wood) • Aquatic communities (periphyton, invert., vert.)
Little Moose Outlet
3) Temperature
Johnson and Jones 2000(S2)
2
Lowrance et al. 1997
4) Nutrient filtration
Field
Buffer
(Buffer Width)
3
5) Bank Stabilization
Photo by Rebecca Schneider
Wenger 1999
6) Sediment retention
Kawaguchi and Nakano 2001
7) Organic inputs: a) terrestrial invertebrates
Riparian Buffers
Two Key Questions:
1. How wide and where?
2. What management inside the buffers is appropriate?
Cum
ulat
ive
Eff
ectiv
enes
s 100%
0%
Distance from Channel (Site Potential Tree Height)
0 0.2 0.5 1.0
Root Strength
Litter FallShading
Coarse Woody Debris to Streams
RIPARIAN BUFFERS
Areas prone to small landslides and debris torrents
Cumulative Effects Analysis
TMDL Development by Watershed and Waterbody
Nitrogen Phosphorous
Sediment
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
Federal Watershed Analysis Procedure
Step 1. Characterize the watershedStep 2. Identify issues and key questionsStep 3. Describe current conditionsStep 4. Describe reference conditionsStep 5. Synthesize and interpret resultsStep 6. Develop recommendations
Modules
• Erosion processes• Hydrology• Vegetation• Stream channel• Water quality• Species and habitats (aquatic and terrestrial)• Human uses
Watershed Analysis Products
1. A description of the watershed, including its natural and cultural features
2. A description of the beneficial uses and values3. When supporting data allow, statements about
compliance with water quality standards4. A description of the distribution, type, and relative
importance of environmental processes5. A description of the watershed’s present condition
relative to its associated values and uses6. A map of possible riparian reserves or buffers