Natural Resources
Conservation Service
Ecological site F152BY003TX
Sloping Clayey Upland
Last updated: 9/22/2023
Accessed: 11/13/2024
General information
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.
MLRA notes
Major Land Resource Area (MLRA): 152B–Western Gulf Coast Flatwoods
Major Land Resource Area (MLRA) 152B, Western Gulf Coast Flatwoods, is in eastern Texas and western Louisiana. Locally termed the Flatwoods, the area is dominated by coniferous forest covering 5,681 square miles (14,714 square kilometers). The region is a hugely diverse transition zone between the northern and eastern mixed forests and southern and western coastal prairies and grasslands.
Classification relationships
Major Land Resource Area (MLRA) (USDA-Natural Resources Conservation Service, 2006)
Ecological site concept
The Sloping Clayey Upland ecological site has very deep, moderately well drained soils influenced by slope and clay content. The majority of the region has little to no slope, so the sloping nature of the sites (3 to 5 percent) make them different. Along with slope, the shrink-swell nature of the soils and a less acidic pH (6.6 to 8.8) than surrounding sites give rise to the unique plant community.
Associated sites
F152BY006TX |
Well Drained Loamy Upland Soils have loamy textures. |
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F152BY004TX |
Clayey Flat Soils are somewhat poorly drained and slopes are not as steep. |
Similar sites
F152BY004TX |
Clayey Flat Soils are somewhat poorly drained and slopes are not as steep. |
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Table 1. Dominant plant species
Tree |
(1) Pinus echinata |
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Shrub |
(1) Ilex vomitoria |
Herbaceous |
(1) Elymus virginicus |
Click on box and path labels to scroll to the respective text.
Ecosystem states
T1A | - | Merchantable timber is harvested by clearcut and site is planted to a monoculture of pine trees. |
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T1B | - | Merchantable timber is harvested by clearcut and site is planted with improved forage species or annual crops. |
R2A | - | Reintroduction of desirable native species and natural regeneration overtime |
T2A | - | Merchantable timber is harvested by clearcut and site is planted with improved forage species or annual crops. |
R3A | - | Reintroduction of desirable native species and natural regeneration overtime |
T3A | - | Site is planted to a monoculture of pine trees |