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Riparian & Riverscour

Riparian communities of Tennessee are tremendously variable. Basically, the term includes any vegetation that borders a stream and whose composition is influenced by the stream and its various processes (e.g. flooding, silt deposition). Non-riparian flood plain communities (e.g. flood plain forests or bottomland hardwood forests) are classified under forested wetlands. Riparian communities are here divided into several types, including riparian forests and woodlands, mudflats, sandbars, gravelbars, and various types of rocky bars known collectively as riverscour communities. Riverscour communities are riparian communities developed in entrenched rocky gorges in dissected terrain where streams drop in elevation and often cut through the various rock strata. In these areas flooding is very intense and "scours" the rocky riparian zone, hence the name riverscour. Riverscour communities develop on sand, gravel, cobble, boulder, and bedrock or often on some combination of these. 

MISSISSIPPI VALLEY LOESS PLAINS

BLUFF HILLS ECOREGION

  • Bluff Hills Unconsolidated Cliff

LOESS PLAIN ECOREGION

  • Loess Plain Unconsolidated Cliff

SOUTHEASTERN PLAINS

NORTHERN HILLY GULF COASTAL PLAIN ECOREGION
  • Northern Hilly Gulf Coastal Plain Unconsolidated Sand Cliff

INTERIOR PLATEAUS

WESTERN HIGHLAND RIM ECOREGION

  • Western Valley Limestone Cliff
  • Western Highland Rim Limestone Cliff
  • Western Highland Rim Shaley-Limestone Cliff
  • Western Highland Rim Siltstone/Mudstone Cliff

PENNYROYAL PLAIN ECOREGION

  • Pennyroyal Plain Limestone Cliff

NASHVILLE BASIN ECOREGION

  • Nashville Basin Limestone Cliff
  • Nashville Basin Sinkhole Wall
CUMBERLAND ENCLAVE ECOREGION

  • Cumberland Enclave Limestone Cliff
  • Cumberland Enclave Shaley-Limestone Cliff
EASTERN HIGHLAND RIM ECOREGION

  • Eastern Highland Rim Limestone Cliff
  • Eastern Highland Rim Shaley-Limestone Cliff

SOUTHWESTERN APPALACHIANS

CUMBERLAND PLATEAU ESCARPMENT ECOREGION

  • Cumberland Plateau Limestone Cliff
  • Cumberland Plateau Limestone Sinkhole Wall

CUMBERLAND PLATEAU ECOREGION

CRAB ORCHARD MOUNTAINS

  • Crab Orchard Mountains Sandstone Cliff

SEQUATCHIE VALLEY ECOREGION

  • Sequatchie Valley Limestone Cliff

CENTRAL APPALACHIANS

CUMBERLAND MOUNTAINS

  • Cumberland Mountains Siltstone Cliff

CUMBERLAND MOUNTAIN THRUSTBLOCK ECOREGION

  • Cumberland Mountain Thrustblock Sandstone Cliff
  • Cumberland Mountain Thrustblock Sandstone Rockhouse

RIDGE AND VALLEY

SOUTHERN CALCAREOUS VALLEYS ECOREGION

  • Ridge and Valley Limestone Cliff
  • Ridge and Valley Dolomite Cliff

SHALE VALLEYS ECOREGION

  • Ridge and Valley Shale Cliff

DISSECTED RIDGES ECOREGION

  • Ridge and Valley Shale Cliff
  • Ridge and Valley Mudstone/Claystone Cliff
  • Ridge and Valley Limestone Cliff

SANDSTONE RIDGES ECOREGION

  • Ridge and Valley Sandstone Cliff
  • Ridge and Valley Quartzite Cliff
  • Ridge and Valley Siltstone Cliff
  • Ridge and Valley Shale Cliff

BLUE RIDGE MOUNTAINS 

SEDIMENTARY MOUNTAINS ECOREGION

  • Blue Ridge Sandstone Cliff
  • Blue Ridge Quartzite Cliff
  • Blue Ridge Shale Cliff
  • Blue Ridge Siltstone Cliff
  • Blue Ridge Dolomite Cliff

METASEDIMENTARY MOUNTAINS ECOREGION

  • Blue Ridge Phyllite Cliff
  • Blue Ridge Slate Cliff
  • Blue Ridge Metasandstone Cliff

IGNEOUS MOUNTAINS ECOREGION

  • Blue Ridge Gneiss Cliff
  • Blue Ridge Granite Cliff
  • Blue Ridge Gabbro Cliff

AMPHIBOLITE MOUNTAINS ECOREGION

  • Blue Ridge Amphibolite Cliff

DOLOMITE COVES ECOREGION

  • Blue Ridge Dolomite Cliff