Shallow Clay (SwC) 10-14" p.z.
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
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Transition T1A
Extended drought (greater than 7 years), non-prescribed grazing, no fire
More details -
Restoration pathway R2A
Prescribed grazing, fire (natural interval 10 to 12 years), extended period of favorable precipitation
More details -
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Submodel
Mechanism
Extended drought (greater than 7 years), non-prescribed grazing, no fire
Community B is much less resistant to change than Community A. Lower production, lower vegetative cover, less litter, and increased bare ground increases Community B’s susceptibility to disturbance. Extended drought and non-prescribed grazing can cause regression to State 2.
Mechanism
Prescribed grazing, fire (natural interval 10 to 12 years), extended period of favorable precipitation
Prescribed grazing reduces the probability of further regression in this State, but it does not ensure significant succession to State 1. Succession from State 2 to State 1 may occur with prescribed grazing combined with an extended period of favorable precipitation. This potential succession is depicted with a “dashed” arrow in the state and transition diagram. Succession can also be induced by mechanical treatments and range seeding.
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.