Ecological site group DX035X02DESG02
Grand Canyon - Ustic Aridic - Limestone or Loamy Upland
Last updated: 10/25/2022
Accessed: 05/02/2024
Ecological site group description
Key Characteristics
- Grand Canyon (D)
- Site parent material is limestone or dolomite, or soil is loamy.
- Site soils are ustic aridic or within a 10-14" precipitation zone.
- 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 ustic aridic or within a 10-14" 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 limestone. Soils are loamy. Site consists of limited amounts of gently sloping sheet alluvial or eolian deposits over residuum of plateaus and structural benches.
Vegetation dynamics
This plant community is made up primarily of mid and short grasses, shrubs and a relatively small percentage of forbs and a scattered overstory of junipers. There is a mixture of both cool and warm season grasses.
Plants most likely to invade or increase on this site are broom snakeweed, wooly groundsel, pingue, juniper, rabbitbrush and annuals. Unmanaged grazing during the winter and spring periods will decrease the cool season grasses, which are replaced by warm season, lower forage value grasses and shrubs. In this plant community there may be trace amounts of non-native annuals present. They do not change the sites ecological processes in these minor amounts
Major Land Resource Area
MLRA 035X
Colorado Plateau
Subclasses
- DX035X01I113–Loamy Upland 10-14" p.z.
- F035XA121AZ–Shallow Loam 10-14" p.z. Cobbly (JUOS)
- R035XA119AZ–Shallow Loamy 10-14" p.z.
- R035XA125AZ–Limy Upland 10-14" p.z. Shallow
- R035XC304AZ–Loamy Upland 10-14" p.z. Cindery
- R035XC310AZ–Limy Slopes 10-14" p.z.
- R035XC311AZ–Limy Upland 10-14" p.z.
- R035XC319AZ–Limestone/Sandstone Upland 10-14" p.z.
- R035XC338AZ–Loamy Upland 10-14" p.z. Limy
- R035XC350AZ–Limestone Upland 10-14" p.z. Warm
Correlated Map Unit Components
22394145, 22394143, 22394151, 22395174, 22395175, 22395025, 22395026, 22395023, 22395073, 22395074, 22395178, 22395180, 22395179, 22395458, 22395456, 22395428, 22395052, 22395059, 22395430, 22395157, 22395158, 22395163, 22395162, 22395161, 22395464
Stage
Provisional
Contributors
Curtis Talbot
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