Ecological site R084CY192TX
Sandstone Hill 37-43 PZ
Last updated: 1/17/2019
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.
Figure 1. Mapped extent
Areas shown in blue indicate the maximum mapped extent of this ecological site. Other ecological sites likely occur within the highlighted areas. It is also possible for this ecological site to occur outside of highlighted areas if detailed soil survey has not been completed or recently updated.
Major Land Resource Area (MLRA): 084C–East Cross Timbers
MLRA 84C is characterized by ridges, hillsides and valleys underlain by interbedded sandstones and shales of Cretaceous age. Most soils support oak savannah vegetation, however much of the area has been subject to fragmentation and urban sprawl.
This ecological site is correlated to soil components at the Major Land Resource Area (MLRA) level which is further described in USDA AgHandbook 296.
Ecological site concept
These sites occur on shallow soils over hard sandstone. The reference vegetation includes a mosaic of mid and tallgrasses and oak trees with various forbs and legumes. Without periodic fire or brush management, woody canopy cover will increase and lead to a significant shift in the plant community. Production is often limited by the shallow soil resources.
Tight Sandy Loam 37-43 PZ
Savannah site with clayey subsoils.
Similar site in Northern Cross Timbers.
Table 1. Dominant plant species
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