Sands (Sa) 10-14" PZ
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
-
Transition T1A
Long-term excessive grazing, or frequent and severe defoliation without adequate recovery between grazing events, or heavy, excessive grazing with overstocking
More details -
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Description
The Reference state is characterized by three distinct plant communities. The plant communities and various successional stages between them represent the natural range of variability within the Reference state.
Submodel
Description
The Eroded state develops with heavy, excessive grazing with overstocking, or frequent and severe defoliation. An ecological threshold has been crossed. Erosion and loss of organic matter and carbon reserves are resource concerns.
Submodel
Mechanism
Long-term excessive grazing, or frequent and severe defoliation without adequate recovery between grazing events, or heavy, excessive grazing with overstocking, will shift the Reference state across an ecological threshold toward the Eroded state. Biotic integrity and hydrologic function will be impaired because of this transition. Severe soil erosion and loss of organic matter are resource concerns. Annual forbs and cheatgrass are likely to increase or invade because of this transition.
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.