rapidan and robinson state of the rivers 2015
TRANSCRIPT
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Rapidan and Robinson State of the Rivers 2015
A StreamSweepers report to landowners and watershed
supporters
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State of the Rivers
• The Land around the Rivers• The River Valleys• The Rivers• Recommendations to Help People and Wildlife
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The Land Around the Rivers
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Robinson River
Rapidan River
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Typical Upper Landscape around Rivers
~80% Forest Cover
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Typical Landscape Around Lower River
Under 50% Forest Cover
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The River Valleys
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Floodplain (without trees)
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River Forest Cropland Water Urban Hay/Pasture
Rapidan 29.9% 16.1% 5.5% 3.4% 45.2%
Conway 22.4% 29.3% 0.6% 8.5% 39.3%
Hazel 37.9% 14.4% 1.6% 2.0% 44.1%
Hughes 30.4% 9.5% 0.0% 8.9% 51.2%
Jordan 41.0% 0.5% 0.3% 3.8% 54.5%
Robinson 16.0% 12.8% 1.8% 9.5% 59.9%
Rose 13.7% 1.3% 0.0% 18.0% 67.0%
Rush 42.7% 0.5% 2.0% 4.4% 50.5%
South 16.3% 9.9% 2.6% 7.0% 64.2%
Thornton 30.9% 0.9% 2.6% 7.7% 58.0%
Low Percentage of Trees in River Valley Floodplains
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Clear or tan areas are without trees
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The Rivers
The Quality of the Canopy, Bed, and Bank
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The Rapidan River from SNP to the Rappahannock
Five Sections
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The Robinson River from Village of Banco to the Rapidan
Three Sections
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Rapidan High Quality
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Rapidan Low Quality
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Robinson High Quality
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Robinson Low Quality
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Comparison of 2014/2015 to 2000 Shows Conditions Generally Worsening
Red shows river health decline since 2000
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Water Quality Partnership National Cancer Institute
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Recommendations• Need more forest and native grasslands in rivers landscapes
– especially in floodplains*• Need new businesses that will pay landowners to grow river
friendly crops• Rivers need ongoing Sweeping – people keep treating rivers
like dump**• Probably need for new comprehensive programs to eliminate
endocrine disrupting compounds getting into environment
* Invasive species becoming real problem** Especially in water supply rivers – tires leach endocrine
mimicking compounds