Ecological site group DX035X04AESG01
San Juan River Corridor LRU Subset - Bottomlands Subgroup
Last updated: 11/01/2022
Accessed: 05/02/2024
Ecological site group description
Key Characteristics
- San Juan River Corridor. This LRU subset consists of landforms which drain directly into the San Juan River. Elevations are mostly under 1900 meters. Stratigraphy is varied, ranging from the Mancos to the Nacimiento formations. This LRU subset is distinct from the rest of 35.4 in that it provides irrigation water. Thus, upland landforms which contribute significant water are included.
- Site occurs on landforms that are concave in one or more dimensions, and receive extra moisture from runoff, throughflow, or discharge in the landscape.
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.
Physiography
This grouped site occurs on water-collecting landforms such as swales, drainageway bottoms, and floodplains. Elevated terraces, alluvial fans, and other water-shedding landforms are excluded.
Soil features
Soils are quite variable, but all experience at least rare flooding.
Major Land Resource Area
MLRA 035X
Colorado Plateau
Subclasses
- DX035X03E005–Salt Flats
- R035XB024NM–Saline Bottom 6-10"
- R035XB028NM–Sandy Bottom 6-10"
- R035XB269AZ–Loamy Bottom 6-10" p.z. Perennial
- R035XB272AZ–Loamy Bottom 6-10" p.z. Perennial, Saline
- R035XB273AZ–Sandy Bottom 6-10" p.z. Perennial
- R035XY012UT–Semiwet Saline Streambank (Fremont Cottonwood)
- R035XY266CO–Salt Meadow
- R035XY413CO–Alkali Bottom
- R035XY997NM–Clayey Bottomland
Correlated Map Unit Components
22959972, 22959977, 22960360, 22960358, 22959956, 22959946, 22959948, 22960234, 22959942, 22959940, 22856666, 23435725, 23435729, 23435763, 23435813, 23435824, 23435830, 23435870, 23435868, 23435869, 23435908, 23435909, 23435922, 22999907
Stage
Provisional
Contributors
Curtis Talbot
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