Natural Resources
Conservation Service
Clay Loam Terrace 10-14" p.z. Saline-Sodic
Scenario model
Current ecosystem state
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Management practices/drivers
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- Transition T1A More details
- Transition T1B More details
- Transition T2A More details
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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 general aspect of the Clay Loam Terracc, Saline-Sodic site is a grass-shrub mix characterized by alkali sacaton, western wheatgrass, fourwing saltbush and greasewood.
Submodel
Description
The plant communities are shrub dominated with a decrease of perennials grasses and increase of annuals, especially introduced annuals such as cheatgrass, filaree and Russian thistle. This state is a result of a degraded biotic function where perennial grasses are reduced and compete with annuals for resources. There are seasonal shifts in annual production, which results in moderate to high amounts of bare ground during dry periods.
Submodel
Description
This state is characterized by a loss of hydrologic function along with a degraded biotic function. The site not longer benefits from overland run-in moisture from uplands. Deep incised channels and/or active gullies have changed the site's ability to hold and capture run-in mosisture. This site gets mosts of its moisture thru precipitation.
Submodel
Mechanism
Introduction of non-native annuals, prolonged severe droughts, unmanaged continuous grazing.
Mechanism
Prolonged severe droughts, unmanaged continuous grazing or frequent soil disturbance, loss of perenial grass cover, invasion of non-native annuals.
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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