Soil Series Atlas

Stuttgart soil series

Fine, smectitic, thermic Albaquultic Hapludalfs

050100150200cm1 ft2 ft3 ft4 ft5 ft6 ftApTopsoil · plowed0–15 cm · 0–6 inATopsoil15–28 cm · 6–11 inELeached layer28–58 cm · 11–23 inBt1Subsoil · clay build-up58–89 cm · 23–35 inBt2Subsoil · clay build-up89–117 cm · 35–46 inBt3Subsoil · clay build-up117–152 cm · 46–60 inBt4Subsoil · clay build-up152–203 cm · 60–80 in050100150200cmApTopsoil · plowed0–15 cm · 0–6 inATopsoil15–28 cm · 6–11 inELeached layer28–58 cm · 11–23 inBt1Subsoil · clay build-up58–89 cm · 23–35 inBt2Subsoil · clay build-up89–117 cm · 35–46 inBt3Subsoil · clay build-up117–152 cm · 46–60 inBt4Subsoil · clay build-up152–203 cm · 60–80 in
Typical pedon, to scale: 203 cm (80 in), 7 horizons.

Alfisols — moderately leached soils with a clay-enriched subsoil

Nationally Stuttgart is a small series: 193,596 acres, 1,874th of 24,791 by area. Besides it, only Blount is somewhat poorly drained in this atlas. Every mapped acre is in Arkansas. Its solum is 76 cm thicker than the median for Alfisols. It is the state soil of Arkansas.

Depth
Very deep
Drainage
Somewhat poorly drained
Water movement
Slow

Compare with another seriesSimilar series in the finder

Where Stuttgart is mapped

193,596 acres in 5 soil survey areas, from current SSURGO data.

AlabamaArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansas: 193,596 acresCaliforniaDelawareDistrict of ColumbiaIowaKentuckyMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Stuttgart acres

  1. Arkansas100%
  • Rank in the state · share of its mapped soil
  • Arkansas 47th of 359 · 0.61%

In the field

Drainage

Somewhat poorly drained

Drains fastStays wet

Blount also is somewhat poorly drained.

Soil depth

Very deep

ShallowDeep

Permeability

Slow

SlowFast
Parent material
Alluvium
Landform
Terraces, valleys/basins
Type location
Arkansas

How it is classified

  1. OrderAlfisols
  2. SuborderUdalfs
  3. Great groupHapludalfs
  4. SubgroupAlbaquultic Hapludalfs
  5. FamilyFine, smectitic, thermic Albaquultic Hapludalfsfine particle-size classsmectitic mineralogy classthermic soil temperature regime

Against other Alfisols

Stuttgart makes up 0.07% of all mapped Alfisols — the 344th largest of 4,001 series in the order.

Solum thickness (topsoil + subsoil)

203 cm over a median of 127 cm

Depth to the subsoil

58 cm over a median of 23 cm

Depth described

203 cm over a median of 156 cm

Its relatives

Close relatives, at one scale

  1. Stuttgart203 cm · Albaquultic Hapludalfs
  2. Lester203 cm · Mollic Hapludalfs
  3. Menfro203 cm · Typic Hapludalfs
  4. Pamunkey203 cm · Ultic Hapludalfs

Horizon by horizon

HorizonLayerDepthThickness
ApTopsoil: plowed0–15 cm0–6 in15 cm
ATopsoil15–28 cm6–11 in13 cm
ELeached layer28–58 cm11–23 in30 cm
Bt1Subsoil: clay build-up58–89 cm23–35 in31 cm
Bt2Subsoil: clay build-up89–117 cm35–46 in28 cm
Bt3Subsoil: clay build-up117–152 cm46–60 in35 cm
Bt4Subsoil: clay build-up152–203 cm60–80 in51 cm

Sources: USDA–NRCS Official Series Description (revised 2019-11), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides