Friday, August 6, 2010

Streambank Erosion

A great example of what happens when a stream bank is not properly
maintained.  Vegetation such as trees and shrubs hold streambanks in
place with a network of roots thereby stabilizing the soil.  When vegetation 
is removed, in this case by excessive ATV traffic next to the creek, the soil
cannot be retained in heavy rainfall and easy flows downstream choking the
watershed.  This sediment deposit is at least 30 inches thick.  Fortunately
this degree of erosion is not common throughout the entire watershed or else
it would significantly impact the diversity of life in Captina Creek.  ATV traffic
should stay away from streambanks and try to avoid stream crossing unless
absolutely necessary to preserve the unique habitat the creek has to offer. 
Stay tuned!   

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