Natural Resources
Conservation Service
Ecological site R025XY010OR
LOAMY 8-11 PZ
Accessed: 11/13/2024
General information
Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.
MLRA notes
Major Land Resource Area (MLRA): 025X–Owyhee High Plateau
MLRA 25 lies within the Intermontane Plateaus physiographic province. The southern half is in the Great Basin Section of the Basin and Range Province. This part of the MLRA is characterized by isolated, uplifted fault-block mountain ranges separated by narrow, aggraded desert plains. This geologically older terrain has been dissected by numerous streams draining to the Humboldt River. The northern half of the area lies within the Columbia Plateaus geologic province. This part of the MLRA forms the southern boundary of the extensive Columbia Plateau basalt flows. Deep, narrow canyons drain to the Snake River which incise the broad volcanic plain. The Humboldt River, route of a major western pioneer trail, crosses the southern half of this area. Reaches of the Owyhee River in this area have been designated as National Wild and Scenic Rivers.
Associated sites
R025XY009OR |
LOAMY PLATEAU 8-11 PZ Loamy Plateau 8-11 PZ (colder soil, higher elevation, different composition – greater cover of Wyoming big sagebrush and Sandberg bluegrass) |
---|---|
R025XY012OR |
LOAMY 11-13 PZ Loamy 11-13 PZ (higher precipitation, greater production, different composition – presence of Idaho fescue) |
R025XY013OR |
NORTH SLOPES 8-11 PZ North Slopes 8-11 PZ (cooler north slope, higher production) |
R025XY019OR |
SOUTH SLOPES 8-11 PZ South Slopes 8-11 PZ (warmer south slope, lower production) |
Similar sites
R025XY025OR |
ASHY PLATEAU 11-13 PZ Ashy Plateau 11-13 PZ (colder, higher precipitation, greater production, different composition – Idaho fescue dominant) |
---|---|
R025XY012OR |
LOAMY 11-13 PZ Loamy 11-13 PZ (higher precipitation, greater production, different composition – presence of Idaho fescue) |
R025XY009OR |
LOAMY PLATEAU 8-11 PZ Loamy Plateau 8-11 PZ (colder soil, higher elevation, different composition – greater cover of Wyoming big sagebrush and Sandberg bluegrass) |
Table 1. Dominant plant species
Tree |
Not specified |
---|---|
Shrub |
(1) Artemisia tridentata var. wyomingensis |
Herbaceous |
(1) Pseudoroegneria spicata subsp. spicata |
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