Soil Series Atlas

Port soil series

Fine-silty, mixed, superactive, thermic Cumulic Haplustolls

050100150cm1 ft2 ft3 ft4 ft5 ft6 ftApTopsoil · plowed0–23 cm · 0–9 inATopsoil23–69 cm · 9–27 inBkSubsoil · lime (carbonate) build-up69–107 cm · 27–42 inCParent material107–183 cm · 42–72 in050100150cmApTopsoil · plowed0–23 cm · 0–9 inATopsoil23–69 cm · 9–27 inBkSubsoil · lime(carbonate) build-up69–107 cm · 27–42 inCParent material107–183 cm · 42–72 in
Typical pedon, to scale: 183 cm (72 in), 4 horizons.

Mollisols — soils with a thick, dark, organic-rich topsoil

Port is mapped on 723,252 acres in 3 states, 314th nationally by area. In Oklahoma only four series cover more ground. Besides it, only Eckrant, Uly, and Ulysses belong to the great group Haplustolls in this atlas. It is the state soil of Oklahoma.

Depth
Very deep
Drainage
Well drained
Water movement
Moderate

Compare with another seriesSimilar series in the finder

Where Port is mapped

723,252 acres in 46 soil survey areas, from current SSURGO data.

AlabamaArizonaColoradoFloridaGeorgiaIndianaKansas: 10,708 acresMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahoma: 649,274 acresPennsylvaniaSouth DakotaTexas: 63,270 acresWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaIowaKentuckyMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Port acres

  1. Oklahoma90%
  2. Texas9%
  3. Kansas2%
  • Rank in the state · share of its mapped soil
  • Oklahoma 5th of 571 · 1.53%
  • Texas 537th of 1,565 · 0.04%

In the field

Drainage

Well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Permeability

Moderate

SlowFast
Parent material
Alluvium
Landform
Flood plains, plains
Type location
Oklahoma

How it is classified

  1. OrderMollisols
  2. SuborderUstolls
  3. Great groupHaplustolls
  4. SubgroupCumulic Haplustolls
  5. FamilyFine-silty, mixed, superactive, thermic Cumulic Haplustollsfine-silty particle-size classmixed mineralogy classsuperactive cation-exchange activity classthermic soil temperature regime

Against other Mollisols

Port makes up 0.17% of all mapped Mollisols — the 86th largest of 7,593 series in the order.

Depth to the subsoil

69 cm over a median of 25 cm

Depth described

183 cm over a median of 152 cm

Its relatives

3 other established series share the family “Fine-silty, mixed, superactive, thermic Cumulic Haplustolls”

  1. Port723 k
  2. Bigetty145 k
  3. Iraan119 k
  4. Bergstrom32 k

Close relatives, at one scale

  1. Port183 cm · Cumulic Haplustolls
  2. Ulysses200 cm · Torriorthentic Haplustolls
  3. Uly203 cm · Typic Haplustolls
  4. Eckrant76 cm · Lithic Haplustolls

Horizon by horizon

HorizonLayerDepthThickness
ApTopsoil: plowed0–23 cm0–9 in23 cm
ATopsoil23–69 cm9–27 in46 cm
BkSubsoil: lime (carbonate) build-up69–107 cm27–42 in38 cm
CParent material107–183 cm42–72 in76 cm

Sources: USDA–NRCS Official Series Description (revised 2004-09), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides