Hydrogeomorphic classification of wetlands
- wetland definition
- Cowardin classification system (USFWS)
- Hydrogeomorphic Classification system (HGM)
- Genetic factors - geomorphic setting, water source, hydrodynamics
- Slope wetlands
- Riverine wetlands
- Depressional wetlands
- Lacustrine wetlands
- Mineral soil flats
- Organic soil flats
- Tidal wetlands
- Chapter 5: Water and Plants in Freshwater Wetlands (p. 127-136, top of 137 only)
- Pages 10-20 of Smith, R. D., Ammann, A., Bartoldus, C., Brinson, M. M. 1995. An approach for assessing wetland functions using hydrogeomorphic classification, reference wetlands, and functional indices. Technical Report WRP-DE-9, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS.
(this is also available for download in .pdf format by clicking -here .
Related web links:
- Wetland pictures- You should look these over and think about which HGM classes they fit into
- Primer on wetlands
- HGM bibliography
- National Wetland Inventory
- California Wetlands Information System
Video Podcast: Hydrogeomorphic Classification of Wetlands
This 43-minute presentation defines the common elements all wetlands share and then delineates wetlands into groups on the basis of shared landforms and processes.
- 640 x 480 (480p) format that balances speed and quality. (383 MB file)
- 1920 x 1280 (HD) format that provides larges size and best quality. (2.0 GB file)
YouTube Video: Wetland Delineation
This 6-minute video illustrates basic concepts in the practical delineation of a wetland.