Monitoring and mapping selected riparian habitat along the lower Snake River
- Pacific Northwest Lab., Richland, WA (United States)
- Shannon and Wilson, Inc., Seattle, WA (United States). Geotechnical and Environmental Consultants, Seattle, Washington (United States)
- Corps of Engineers, Portland, OR (United States)
Studies in this document were initiated to establish baseline information on riparian and wetland habitat conditions at the areas studied under the current reservoir operations on the lower Snake River. Two approaches were used to assess habitat at 28 study sites selected on the four pools on the lower Snake River. These areas all contribute significant riparian habitat along the river, and several of these areas are designated habitat management units. At 14 of the 28 sites, we monitored riparian habitat on three dates during the growing season to quantify vegetation abundance and composition along three transects: soil nutrients, moisture, and pH and water level and pH. A second approach involved identifying any differences in the extent and amount of riparian/wetland habitat currently found at the study areas from that previously documented. We used both ground and boat surveys to map and classify the changes in vegetative cover along the shoreline at the 14 monitoring sites and at 14 additional sites along the lower Snake selected to represent various riparian/wetland habitat conditions. Results of these mapping efforts are compared with maps of cover types previously generated using aerial photography taken in 1987.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Shannon and Wilson, Inc., Seattle, WA (United States)
- Sponsoring Organization:
- Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 212417
- Report Number(s):
- PNNL-10953; ON: DE96007650
- Resource Relation:
- Other Information: PBD: Jan 1996
- Country of Publication:
- United States
- Language:
- English
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