Ecological site group DX035X02DESG11
Grand Canyon - Aridic Ustic - Volcanic or Clayey Upland
Last updated: 10/26/2022
Accessed: 05/02/2024
Ecological site group description
Key Characteristics
- Grand Canyon (D)
- Site parent material is volcanic or clayey.
- [Criteria]
- Site is and/or located in an upland with slopes <15%.
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
Site is and/or located in an upland with slopes <15%. Physiography is complex.
Climate
Site soils are aridic ustic or within a 13-17" precipitation zone. Precipitation comes monsoonal patterns during months of July, August, and September, and is supplemented by winter storm patterns from November through March.
Soil features
Parent material is basalt or andesite. Soils are clay loam, or clayey. Site consists of limited amounts of gently sloping sheet alluvial or eolian deposits over residuum of plateaus and structural benches.
Vegetation dynamics
The dominant aspect of the site is a Colorado pinyon and Utah juniper woodland with understory of cool season grasses and large shrubs. Major grasses include western wheatgrass, blue grama, squirreltail and muttongrass. Dominant shrubs are Wyoming big sagebrush, Stansbury cliffrose, and antelope bitterbrush.
Major Land Resource Area
MLRA 035X
Colorado Plateau
Subclasses
- DX035X02B611–Clay Loam Upland 13-17" p.z. Gravelly (PIED, JUOS)
- DX035X03G602–Clay Loam Upland 13-17" p.z. (PIED, JUOS)
- F035XF609AZ–Cinder Hills 13-17" p.z. (PIED)
- F035XF610AZ–Cinder Upland 13-17" p.z. (PIED, JUOS)
- F035XF620AZ–Basalt Upland 13-17" p.z. (JUOS)
- F035XF624AZ–Basalt Slopes 13-17" p.z. (JUOS, PIED)
- R035XF603AZ–Clay Loam Upland 13-17" p.z.
- R035XF604AZ–Clayey Upland 13-17" p.z.
Correlated Map Unit Components
22391240, 22391238, 22395014, 22395184, 22395185, 22394887, 22394883, 22394884, 22395068, 22395064, 22394988, 22394993, 22394992, 22395011, 22395187, 22395031, 22395032, 22395453, 22394866, 22395040, 22395183, 22394880, 22395432, 22394863, 22394985, 22394983, 22394979, 22394891, 22394856
Stage
Provisional
Contributors
Curtis Talbot
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