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Uploaded on Jul 7, 2014
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This training module on Depressional Wetlands is intended to provide supplemental information on using CRAM for rapid wetland assessment and monitoring. This video can be viewed in advance of a field training program to help prospective students prepare for the session, as a refresher for those who have already been trained in CRAM, or for others interested in knowing how the method can be applied. This video was filmed at "Tyson Lagoon" in Fremont, California (1990 Walnut Ave, Fremont, CA 94536).
Depressional wetlands exist in topographic lows that do not usually have outgoing surface drainage except during extreme flood events or heavy rainfall. Many depressional wetlands are seasonal, and some lack surface ponding or saturated conditions during dry years. The margins of distinct depressional wetlands are relatively easy to discern in aerial photos and in the field.
The California Rapid Assessment Method for wetlands and riparian areas (CRAM) is a tool for standardized and cost-effective assessment of wetland condition.