LOAMY 8-12 ARTRT/PSSPS
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
- Transition T1A 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
Select a state
Description
The Reference State (State 1), the Historic Climax Plant Community (HCPC) moves through many phases depending on the natural and human forces that impact the community over time. The Reference Plant Community Phase is Phase 1.1, State 1. The plant species composition of Phase 1.1 is listed later under “Reference Plant Community Phase Plant Species Composition”.
Submodel
Description
The Current Potential state is similar to the Reference State, with the addition of non-native species. Non-native species lower resistance and resilience to disturbance.
Submodel
Mechanism
Introduction and establishment of non-native species in the plant community. Annual non-native species, like cheatgrass, lower the site resistance and resilience to disturbance. This occurs through an increase in fine fuels that make the site more susceptible to fires. More frequent fires reduce shrub cover and increase non-native annual species. This positive feedback may lead to a transition to a different state that has not been identified (a potential State 4).
Model keys
Briefcase
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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.