Natural Resources
Conservation Service
Frigid E-C Meadow System
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
- Transition 1A More details
- Restoration pathway 2.1A More details
- Transition 2A More details
- Restoration pathway 3.1A More details
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No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Description
This state is the reference state for this ecological site. It is defined by an E or C Rosgen channel type.
Submodel
Description
This state is an unstable, entrenched state with G and F type channel types.
Submodel
Mechanism
This transition occurs when the E and C type channel equilibrium is disrupted. This may be triggered by the loss of channel stabilizing vegetation, either from physical trampling or hydrological alterations that cause the water table to lower and subsequently cause a decline in the stabilizing vegetation. Manipulations such as channel straightening, confining the floodplain, or improperly designed road crossings can also trigger this transition.
Mechanism
Restoration to State 1 varies depending upon local site conditions. Stream reconstruction projects have been implemented in reaches of this ecological site. Stream meander was increased, channel bed raised, and E or C type channels were reconstructed. The restoration efforts have been successful in terms of creating a stable channel, and reconnecting the floodplain. See 2nd Nature's (, 2010) report for restoration on a reach of Trout Creek, and the propossed Truckee Marsh restoration EIR (Aecom and Entrix, 2013), which may include some of this ecological site. There are many other restoration projects that have been completed or are being planned.
Mechanism
This transition occurs when the F channel has widened sufficiently to allow for a C channel type to develop with a lower re-established floodplain.
Model keys
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Ecological sites
Major Land Resource Areas
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.
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