Ecological site group description

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 ecological site occurs in an upland position as gently rolling plains, fans and terraces. Slopes generally range from 0% to 15% with occasional steeper slopes up to 30%.

Climate

Winter to summer moisture ratios range from 70:30 to 60:40. Late spring is usually the driest period, and early fall moisture can be sporadic. Summer rains fall from June through September.

Soil features

Soils grouped in this site are moderately deep or deeper to any plant root restricting layers. The surface horizons have textures of very fine sandy loam to sandy clay loam with various amounts of gravel on the surface.

Vegetation dynamics

Composed primarily of warm season mid-grasses and short grasses with a mix of cool season grasses and sub-shrubs. Dominant grasses include black grama, blue grama, squirreltail, indian ricegrass, galleta and sideoats grama. Dominant shrubs include winterfat and fourwing saltbush.

Major Land Resource Area

MLRA 035X
Colorado Plateau

Subclasses

• DX035X01I113–Loamy Upland 10-14" p.z.
• DX035X03B625–Loamy Upland (PIED, JUOS) 13-17" p.z. (Provisional)
• R035XB210AZ–Loamy Upland 6-10" p.z.
• R035XC313AZ–Loamy Upland 10-14" p.z.
• R035XC337AZ–Sandstone/Shale Upland 10-14" p.z.
• R035XF605AZ–Loamy Upland 13-17" p.z.
• R035XF608AZ–Limestone / Sandstone Upland 13-17" p.z.
• R035XY243UT–Semidesert Stony Loam (Blackbrush)
• R035XY246UT–Semidesert Stony Loam (Utah Juniper-Pinyon)

Correlated Map Unit Components

22397544, 22397346, 22600864, 22600868

Stage

Provisional

Contributors

Keith Crossland, Vic Parslow, Harry Hosler, Jeff Fenton
Curtis Talbot