Singleleaf Pinyon Pine Forestland
Scenario model
Current ecosystem state
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Management practices/drivers
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No transition or restoration pathway between the selected states has been described
Target ecosystem state
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Description
This state represents the natural range of variability under pristine conditions. This state is dominated by singleleaf pinyon pine. Primary natural disturbance mechanisms affecting this ecological site are wildfire and periodic drought. Timing of fire combined with weather events determines plant community dynamics. This site may experience light to moderate grazing by wildlife. Pinyon-juniper habitat is generally arid and species are adapted to receiving limited annual precipitation. Overall, drought related mortality is low in this habitat type. Increased mortality following drought is likely caused by a combination of drought, insect attack and disease.
Submodel
States 1, 5 and 6 (additional transitions)
1.1. Reference Plant Community
1.5. Immature Forest
1.6. Over-mature Forestland
States 2, 5 and 6 (additional transitions)
1.2. Herbaceous
1.5. Immature Forest
1.6. Over-mature Forestland
Description
The Invaded State is characterized by a singleleaf pinyon pine forest with a trace of non-native annuals in the understory. State 2 is functionally similar to the reference state, however the presence of non-natives has reduced the ecological resilience of the site.
Submodel
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.