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Saltbush-Dominated Valleys

Ecoregion in Great Basin in ID, UT

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The Saltbush-Dominated Valleys ecoregion is arid, gently sloping, and dominated by shadscale and greasewood. Light-colored soils with high salt and alkali content are common; they are dry for extended periods and may be leached of salt by irrigation water. Potential natural vegetation is saltbush – greasewood; it is distinct from that of surrounding ecoregions. The primary land use is grazing but irrigated cropland occurs and is much more common than in Ecoregion 13b. Ecoregion 80h drains to the Snake River and was not flooded by Pleistocene Lake Bonneville in contrast to Ecoregion 13b.

— EPA

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