Soil Series Atlas

Dickson soil series

Fine-silty, siliceous, semiactive, thermic Glossic Fragiudults

050100150200cm1 ft2 ft3 ft4 ft5 ft6 ftApTopsoil · plowed0–25 cm · 0–10 inBwSubsoil · color or structure change25–51 cm · 10–20 inELeached layer51–61 cm · 20–24 inBtx1Subsoil · clay build-up, fragipan: denseand brittle61–81 cm · 24–32 inBtx2Subsoil · clay build-up, fragipan: denseand brittle81–109 cm · 32–43 in2BtSubsoil · clay build-up, different parentmaterial109–185 cm · 43–73 in3CrSoft bedrock · different parent material185–206 cm · 73–81 in050100150200cmApTopsoil · plowed0–25 cm · 0–10 inBwSubsoil · color orstructure change25–51 cm · 10–20 inELeached layer51–61 cm · 20–24 inBtx1Subsoil · claybuild-up, fragipan:dense and brittle61–81 cm · 24–32 inBtx2Subsoil · claybuild-up, fragipan:dense and brittle81–109 cm · 32–43 in2BtSubsoil · claybuild-up, differentparent material109–185 cm · 43–73 in3CrSoft bedrock ·different parentmaterial185–206 cm · 73–81 in
Typical pedon, to scale: 206 cm (81 in), 7 horizons.

Ultisols — strongly weathered, leached soils with a clay-enriched subsoil

Dickson is mapped on 593,745 acres in 3 states, 436th nationally by area. Besides it, only Monongahela belongs to the great group Fragiudults in this atlas. Its biggest share, 64%, is in Tennessee, where it ranks 18th of 449 series. No other established series shares its family class. It is the state soil of Tennessee.

Depth
Very deep
Drainage
Moderately well drained
Water movement
Moderate

Compare with another seriesSimilar series in the finder

Where Dickson is mapped

593,745 acres in 41 soil survey areas, from current SSURGO data.

Alabama: 178,409 acresArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaIowaKentucky: 33,803 acresMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennessee: 381,533 acresUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Dickson acres

  1. Tennessee64%
  2. Alabama30%
  3. Kentucky6%
  • Rank in the state · share of its mapped soil
  • Tennessee 18th of 449 · 1.54%
  • Alabama 41st of 439 · 0.65%
  • Kentucky 120th of 324 · 0.15%

In the field

Drainage

Moderately well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Permeability

Moderate

SlowFast
Parent material
Residuum, limestone
Landform
Ridges/interfluves, uplands
Type location
Tennessee

How it is classified

  1. OrderUltisols
  2. SuborderUdults
  3. Great groupFragiudults
  4. SubgroupGlossic Fragiudults
  5. FamilyFine-silty, siliceous, semiactive, thermic Glossic Fragiudultsfine-silty particle-size classsiliceous mineralogy classsemiactive cation-exchange activity classthermic soil temperature regime

Against other Ultisols

Dickson makes up 0.31% of all mapped Ultisols — the 76th largest of 1,278 series in the order.

Solum thickness (topsoil + subsoil)

185 cm over a median of 142 cm

Depth described

206 cm over a median of 178 cm

Its relatives

Close relatives, at one scale

  1. Dickson206 cm · Glossic Fragiudults
  2. Monongahela165 cm · Typic Fragiudults

Horizon by horizon

HorizonLayerDepthThickness
ApTopsoil: plowed0–25 cm0–10 in25 cm
BwSubsoil: color or structure change25–51 cm10–20 in26 cm
ELeached layer51–61 cm20–24 in10 cm
Btx1Subsoil: clay build-up, fragipan: dense and brittle61–81 cm24–32 in20 cm
Btx2Subsoil: clay build-up, fragipan: dense and brittle81–109 cm32–43 in28 cm
2BtSubsoil: clay build-up, different parent material109–185 cm43–73 in76 cm
3CrSoft bedrock: different parent material185–206 cm73–81 in21 cm

Sources: USDA–NRCS Official Series Description (revised 2001-05), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides