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1.1

Ecological site DX032X01B154

Shale (Sh) Big Horn Basin Rim

Home / Esd catalog / MLRA 032X / Ecological site DX032X01B154
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T 1-2 - Natural variability, frequent and severe grazing, severe ground disturbance, drought, or a combination of these factors eliminates or prevents perennial grass establishment and supports Gardner's saltbush.
T 1-3 - Frequent and severe grazing, ground disturbance, or drought with a seed source present provides weedy species the opportunity to invade this community.
R 2-1 - Long-term prescribed grazing allows existing populations to gain vigor and encourages seedlings if seed source is available and climatic conditions are favorable. This site may require mechanical or cultural inputs to allow minor improvements in a foreseeable time frame.
T 2-3 - Drought, frequent or severe grazing, non-use, or ground disturbance with seed source present exposes this barren community to invasion by weedy species.
R 3-4 - Integrated pest management with grazing lands mechanical treatment, or rangeland seeding with prescribed grazing will be required inputs to alter the soils and hydrology of this site to allow a desirable plant cover to establish and control the invasive species (species dependent.)
T 4-3 - Drought, lack of maintenance, or further ground disturbance with seed source present exposes this disturbed community to (re-)invasion by weedy species.
CP 1.1-1.2 - The combination of frequent and severe grazing and drought or the natural variability in amount and timing of precipitation influence the abundance and dominance of Indian ricegrass compared to bottlebrush squirreltail and Sandberg bluegrass.
CP 1.2-1.1 - Given time to rest and recover and respond to favorable conditions, or once the pressure is released (climatic patterns return to normal), composition will shift back to an Indian ricegrass site.

State 2 submodel, plant communities

State 3 submodel, plant communities

State 4 submodel, plant communities