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Ecosystem Management on the
U.S. Department of Energy's Savannah River Site

 



 













































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Gary Wein and Elizabeth Lemaster



Elements of Ecosystem Management
 

In this 1988 satellite image, to the right, showing a 30,000 km 2 box centered on the 803 km 2 Savannah River Site (SRS), the distinct boundaries of the SRS are obvious. The protected status of the SRS has provided an area conducive to maintaining the natural biodiversity of the Southeastern Upper Coastal Plain. The site is home to:


1988 satellite image showing the SRS
  Upper Three Runs Creek, which has the highest diversity of aquatic insects of any stream in our hemisphere
• 380 isolated depressional wetlands (280 Carolina bays)
• 101 species of reptiles and amphibians
• 50 species of birds, including 3 that are federally endangered
• 46 species of mammals, 79 species of fish
• 1,400+ species of plants.
    
SRS and surrounding landscapeThe SRS is distinct from the surrounding landscape for two primary reasons: 1) it is protected from public access because of its mission, and 2) its timber is managed by the Savannah River Forest Station (SRFS).  The satellite image to the left shows land use change between 1974 and 1992.  This analysis indicates that on the SRS pine stands have been continuous and that significant pine regeneration has occurred.  This is not the pattern off site. 
 
Vegetation on the SRSIn 1972, the SRS was designated as the first National Environmental Research Park (NERP) by President Richard M. Nixon.  The NERP mission is dedicated to the study of the interaction of human-managed environments with natural systems.  As part of the NERP Program, 30 DOE set-asides, 10 in 1972 and an additional 20 in 1989, (totaling 5.761 ha, 7% of SRS) have been established as sites that represent unique and relatively undisturbed habitats of the region, protect threatened biota, and provide sites conducive to longer-term ecological research.  The NERP Program and the Set-Aside Program administered by Savannah River Ecology Laboratory (SREL), have funded seed grants to conduct baseline ecological studies.  These NERP Reports have been used as resource documents for Environmental Impact Statements as required by NEPA and Environmental and Ecological Risk Assessments as required by CERCLA and RCRA
 
GIS image of SRSEcosystem Management requires both research and information management.  Geographic Information System (GIS) technology is providing a powerful tool for spatial management of information.  Spatial analyses are critical components of SRS's landscape approach to management.  By utilizing this technology, the multitude of research and information gathered since 1951 is accessible to all organizations on the site.  This is vital to ensure that the best available scientific information is being used in our NEPA and decision-making process.
 
 
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