Natural Resources
Conservation Service
Ecological site R043BY012ID
Mountain Poorly Drained Bottom ARCAV3-DAFRF/FEID
Last updated: 2/03/2020
Accessed: 11/21/2024
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
434 – Central Rocky Mountains and Foothills – In 2016, a revision to Agricultural Handbook 296 was drafted, changing the MLRA naming convention. In response to these noted changes, Region 4 proactively drafted changes to MLRA 43A, 43B, and 43C. In these changes, 43B has been divided into subsequent MLRA’s, LRU’s and Subsets. The Central Rocky Mountains within Wyoming (southern extent of 43B) was divided into MLRA 434. (03 correlates to LRU C as of date 9/2018).
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
Major Land Resource Area (MLRA): 043B–Central Rocky Mountains
Land Resource Unit: E (Rocky Mountain Range and Forested)
EPA EcoRegion: Level III (Middle Rockies)
Ecological site concept
• Site receives additional water.
• Slope is <30%
• Soils are:
o Textures range from fine sandy loam to sandy loam in top 4” (10 cm) of mineral soil surface
o Clay content is or = 35% 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 Deep to very deep
o <3% stone and boulder cover and >35% cobble and gravel cover
o 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
R043BY007ID |
Meadow DECA18-CANE2 |
---|---|
R043BY008ID |
Dry Meadow PONE3-PHAL2 |
R043BY009ID |
Loamy 16-22 PZ ARTRV/FEID |
R043BY011ID |
Riparian SALIX/CAREX |
R043BY014ID |
Wet Meadow (Muck) SALIX/CAREX |
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 |
R043BY002ID |
Granitic 22+ PZ ARTRV/FEID |
R043BY004ID |
Shallow Fractured Stony Loam 16-22 PZ ARTRV/FEID |
Table 1. Dominant plant species
Tree |
Not specified |
---|---|
Shrub |
Not specified |
Herbaceous |
Not specified |
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