Natural Resources
Conservation Service
Ecological site R043BY003ID
Loamy 22+ PZ FEID-PSSPS
Last updated: 2/03/2020
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): 043B–Central Rocky Mountains
Major Land Resource Area (MLRA): 043B–Central Rocky Mountains
Major Land Resource Area (MLRA):
43B – Central Rocky Mountains – This MLRA is extensive including Montana, Idaho, Wyoming and a small portion in Utah. MLRA 43B includes the Rocky Mountains. A revision of the MLRA's in 2006 lead to the inclusion of the foothills with the mountains for much of Wyoming. Cartographic standards limited the ability to capture the foothills as a separate MLRA .
Further information regarding MLRAs, refer to: United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.
Available electronically at: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_053624#handbook.
Classification relationships
Hierarchical Classification Relationships
Relationship to Other Established Classification Systems:
National Vegetation Classification System (NVC):
2 Shrub & Herb Vegetation
2.B Temperate & Boreal Grassland & Shrubland
2.B.2 Temporate Grassland & Shrubland
2.B.2.Na Western North American Grassland & Shrubland
M048 Central Rocky Mountain Montane-Foothill Grassland & Shrubland
A3965 Central Rocky Mountain Subalpine Dry Idaho Fescue Grassland
CEGL001611 – Festuca idahoensis – Carex obtusata Grassland or
CEGL001612 – Festuca idahoensis – Danthonia intermedia Grassland or
CEGL001899 – Festuca idahoensis – Carex scirpoidea Grassland
Ecological site concept
• Site receives no additional water.
• Slope is <20%
• Soils are:
o Derived from sedimentary parent materials.
o Textures range from very fine sandy loam to clay loam in top 4” (10 cm) of mineral soil surface
o Clay content is or = 32% in top 4” (10 cm) of mineral soil surface
o Each following subsurface horizon has a clay content of <35% by weighted average in the particle size control section
o Moderately deep to very deep (20-78+ in. (50-200+ cm)
o <3% stone and boulder cover and <20% cobble and gravel cover
o Not skeletal (<35% rock fragments) within 20” (51 cm) of mineral soil surface
o None to Slightly effervescent throughout top 20” (51 cm) of mineral soil surface
o Non-saline, sodic, or saline-sodic
Associated sites
R043BY002ID |
Granitic 22+ PZ ARTRV/FEID |
---|---|
R043BY004ID |
Shallow Fractured Stony Loam 16-22 PZ ARTRV/FEID |
R043BY009ID |
Loamy 16-22 PZ ARTRV/FEID |
R043BY017ID |
Shallow Stony 22+ PZ ARTRV/FEID |
R043BY018ID |
South Slope Stony 22+ PZ PSSP6-FEID |
R043BY019ID |
North Slope Loamy 16-22 PZ SYORU/FEID-PSSPS |
R043BY020ID |
South Slope Gravelly 16-22 PZ ARTRV/BRMA4-ELTRT |
R043BY022ID |
Windswept Mountain Ridge 22+ PZ FEID-CAREX |
Table 1. Dominant plant species
Tree |
Not specified |
---|---|
Shrub |
Not specified |
Herbaceous |
Not specified |
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