Long-term excessive grazing or frequent and severe defoliation without adequate recovery between grazing events, or heavy, excessive grazing with overstocking
The Reference state is characterized by two distinct plant communities.. The plant communities, and successional stages between them, represent the natural range of variability within the Reference state.
Submodel
1.1. Gardner’s Saltbush, Alkali Sacaton, and Western Wheatgrass
1.2. Gardner’s Saltbush, Alkali Sacaton, and Inland Saltgrass
The Eroded state develops with long-term excessive grazing or frequent and severe defoliation, without adequate recovery between grazing events, or heavy, excessive grazing with overstocking, will cause a shift across an ecological threshold to the Increased Bare Ground state. An ecological threshold has been crossed. Erosion and loss of organic matter or carbon reserves are resource concerns.
Submodel
2.1. Greasewood, Pains Pricklypear, Inland Saltgrass, and Purple Threeawn
Long-term excessive grazing or frequent and severe defoliation without adequate recovery between grazing events, or heavy, excessive grazing with overstocking, will cause a shift across an ecological threshold to the Eroded state.
Model keys
Briefcase
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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.