Natural Resources
Conservation Service
Ecological site F152BY011TX
Swamp
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 Swamp ecological site has very deep, very poorly drained soils greater than 80 inches (203 centimeters) that are ponded throughout a portion of the year. A wetland plant community exists because it is the lowest position on the landscape, along with the flooding and ponding regimes.
Associated sites
F152BY010TX |
Terrace Soils are loamy throughout, better drained, and on a higher landform. |
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F152BY013TX |
Poorly Drained Loamy Bottomland Soils are loamy throughout, better drained, and on a higher landform. |
F152BY014TX |
Poorly Drained Clayey Bottomland Soils are better drained, clayey throughout, and on a higher landform. |
Similar sites
F152BY013TX |
Poorly Drained Loamy Bottomland Soils are loamy throughout, better drained, and on a higher landform. |
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F152BY001TX |
Depressional Soils are on a higher landform and not ponded as long. |
F152BY014TX |
Poorly Drained Clayey Bottomland Soils are better drained, clayey throughout, and on a higher landform. |
Table 1. Dominant plant species
Tree |
(1) Taxodium distichum |
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Shrub |
(1) Cephalanthus occidentalis |
Herbaceous |
(1) Lemna |
Click on box and path labels to scroll to the respective text.
Ecosystem states
T1A | - | Introduction of highly competitive, non-native species |
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R2A | - | Biological, chemical and/or mechanical control of non-native species |