Aleutian Organic Wet Depressions
Scenario model
Current ecosystem state
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Management practices/drivers
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Transition T1A
Catastrophic event, major disturbance
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Restoration pathway R2a
Time following end of disturbance
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No transition or restoration pathway between the selected states has been described
Target ecosystem state
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Description
The Reference State encompasses the hydrogeochemistry driven plant community that creates a mosaic of diverse communities, that transition from the wettest inner portions of the depressions to the drier outer edges of the depression. The organic layer is mainly a sedge peat or of a more decomposed mix of organic material. Cover includes sphagnum, sedges, rushes, cottongrasses, wood rushes, and other wet-obligate plants.
Submodel
Description
Frost action within the soils, human degradation, catastrophic events such as avalanches, landslides, glacial events, or other extreme events will alter the hydrologic function, soil stability, and shift the vegetation within the variable communities. There is currently a minimal data set on wide-extent responses to disturbances. Data presented is an inference of LandFire Biophysical models.
Submodel
Model keys
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The Ecosystem Dynamics Interpretive Tool is an information system framework developed by the USDA-ARS Jornada Experimental Range, USDA Natural Resources Conservation Service, and New Mexico State University.