Sand 12-16 ARTRT/ACHY
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
- Transition T2B More details
- Transition T3A More details
- Transition T4A 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 contains 6 plant community phases. The plant community phases change depending on disturbance, fire or grazing, and proximity to a juniper seed source.
Submodel
States 1, 5 and 6 (additional transitions)
1.1. Basin big sagebrush/Indian ricegrass/other perennial grasses
1.5. Bitterbrush/Basin big sagebrush - Needle and thread - thickspike wheatgrass
1.6. Basin big sagebrush/thickspike wheatgrass
Description
The Current Potential State is similar to the Reference State. However, the Current Potential State has non-native species in the plant community.
Submodel
States 1, 5 and 6 (additional transitions)
2.1. Basin big sagebrush/Indian ricegrass/other perennial grasses
2.5. Bitterbrush/basin big sagebrush-needle and thread-thickspike wheatgrass
2.6. Basin big sagebrush/thickspike wheatgrass
Description
The Shrub State occurs when there has been an absence of disturbance, such as fire. Non-native annual species are also found dominating the understory. Locations where the Shrub State occurs do not have a juniper seed sources, or have not been invaded by junipers.
Submodel
Description
The Tree State occurs when junipers have increased in the plant community in community phase 2.3 or 2.5. Junipers increase with a decrease in fire. The plant community under the juniper canopy is dominated by non-native annuals.
Submodel
Mechanism
Introduction of non-native species. This alters the resilience and resistance of the site. Non-native species, especially annuals, change energy, nutrient, and water cycling.
Mechanism
Develops through improper grazing management and lack of fire.
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.