Saline Overflow (SOv) 10-14" p.z.
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
-
Transition T1A
Non-prescribed grazing, extended drought (greater than 7 years), no fire, reduced run-in moisture from adjacent upland sites
More details -
Transition T1B
Non-prescribed grazing, extended drought (greater than 7 years), no fire, increase in subsurface water
More details -
Restoration pathway R2A
Prescribed grazing, fire, favorable precipitation
More details -
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Submodel
Submodel
Mechanism
Non-prescribed grazing, extended drought (greater than 7 years), no fire, reduced run-in moisture from adjacent upland sites
The reference state (State 1) will regress to State 2 under non-prescribed grazing, prolonged drought, and an extended period of no fire. The rate of regression varies with the kind, intensity, frequency and duration of the disturbances. The transition may end up as a warm season short grass dominated community (State 2).
Mechanism
Non-prescribed grazing, extended drought (greater than 7 years), no fire, increase in subsurface water
The reference state (State 1) will regress to State 3 under non-prescribed grazing, prolonged drought, and an extended period of no fire. The rate of regression varies with the kind, intensity, frequency and duration of the disturbances. The transition may end up as a salt-tolerant shrub-dominated community (State 3). The shrub dominated community is depicted within the dashed lines (in the state and transition diagram) because its ecological characteristics are not presently fully understood.
Mechanism
Prescribed grazing, fire, favorable precipitation
The implementation of prescribed grazing is not expected to move these plant communities toward a higher successional state. In comparison to the HCPC, annual production is about 25% of the site potential. It is theorized that the salinity of the site increased during the regression from the “Reference State” to early seral states. Thus, the lower-successional plants occurring on the site may be better-adapted than some of the original climax species. Because of the soil limitations, mechanical treatments and range seeding are not normally recommended.
Model keys
Briefcase
Add ecological sites and Major Land Resource Areas to your briefcase by clicking on the briefcase (
) icon wherever it occurs. Drag and drop items to reorder. Cookies are used to store briefcase items between browsing sessions. Because of this, the number of items that can be added to your briefcase is limited, and briefcase items added on one device and browser cannot be accessed from another device or browser. Users who do not wish to place cookies on their devices should not use the briefcase tool. Briefcase cookies serve no other purpose than described here and are deleted whenever browsing history is cleared.
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.