PIMO-JUOS/ARTRW8
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
The reference state is representative of the natural range of variability under naturally stable, pre-European settlement conditions. This state is dominated by singleleaf pinyon pine (Pinus monophylla) and Utah Juniper (Juniperus osteosperma). Primary natural disturbances affecting this ecological site are wildfire, disease, insect attack and periodic drought. Timing of fire combined with weather events determines 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. Prolonged drought will result in an overall decline in the grass-forb-shrub community components and reduced annual growth of mature pinyon and juniper.
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.