Soil Series Atlas

Miami soil series

Fine-loamy, mixed, active, mesic Oxyaquic Hapludalfs

050100150200cm1 ft2 ft3 ft4 ft5 ft6 ftApTopsoil · plowed0–20 cm · 0–8 inBt1Subsoil · clay build-up20–33 cm · 8–13 in2Bt2Subsoil · clay build-up, different parentmaterial33–58 cm · 13–23 in2Bt3Subsoil · clay build-up, different parentmaterial58–79 cm · 23–31 in2BCtSubsoil grading to parent material · claybuild-up, different parent material79–91 cm · 31–36 in2CdParent material · dense, rootsrestricted, different parent material91–200 cm · 36–79 in050100150200cmApTopsoil · plowed0–20 cm · 0–8 inBt1Subsoil · clay build-up20–33 cm · 8–13 in2Bt2Subsoil · claybuild-up, differentparent material33–58 cm · 13–23 in2Bt3Subsoil · claybuild-up, differentparent material58–79 cm · 23–31 in2BCtSubsoil grading toparent material · claybuild-up, differentparent material79–91 cm · 31–36 in2CdParent material ·dense, rootsrestricted, differentparent material91–200 cm · 36–79 in
Typical pedon, to scale: 200 cm (79 in), 6 horizons.

Alfisols — moderately leached soils with a clay-enriched subsoil

Miami is mapped on 821,157 acres in 5 states, 249th nationally by area. In Indiana only two series cover more ground. It is the largest of the 16 established series in its family. It is the state soil of Indiana.

Depth
Very deep
Drainage
Moderately well drained
Water movement
Moderately high

Compare with another seriesSimilar series in the finder

Where Miami is mapped

821,157 acres in 79 soil survey areas, from current SSURGO data.

AlabamaArizonaColoradoFloridaGeorgiaIndiana: 560,751 acresKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouriWest VirginiaIllinois: 11,703 acresNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaIowaKentuckyMarylandMichigan: 73,428 acresMississippiMontanaNew HampshireNew YorkOhio: 48,686 acresOregonTennesseeUtahVirginiaWashingtonWisconsin: 126,588 acresNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Miami acres

  1. Indiana68%
  2. Wisconsin15%
  3. Michigan9%
  4. Ohio6%
  5. Illinois1%
  • Rank in the state · share of its mapped soil
  • Indiana 3rd of 534 · 2.81%
  • Wisconsin 65th of 782 · 0.39%
  • Michigan 110th of 668 · 0.23%
  • Ohio 103rd of 513 · 0.21%

In the field

Drainage

Moderately well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Water movement (Ksat)

Moderately high

SlowFast
Parent material
Loess, glacial till
Landform
Till plains
Major land resource areas
111A, 111D, 95B, 97, 98, 108A, 110, 114A, 115C
Type location
Indiana

How it is classified

  1. OrderAlfisols
  2. SuborderUdalfs
  3. Great groupHapludalfs
  4. SubgroupOxyaquic Hapludalfs
  5. FamilyFine-loamy, mixed, active, mesic Oxyaquic Hapludalfsfine-loamy particle-size classmixed mineralogy classactive cation-exchange activity classmesic soil temperature regime

Against other Alfisols

Miami makes up 0.30% of all mapped Alfisols — the 43rd largest of 4,001 series in the order.

Solum thickness (topsoil + subsoil)

91 cm under a median of 127 cm

Depth described

200 cm over a median of 156 cm

Its relatives

15 other established series share the family “Fine-loamy, mixed, active, mesic Oxyaquic Hapludalfs”

  1. Miami821 k
  2. Hilton184 k
  3. Cazenovia133 k
  4. Rawson79 k
  5. Kidami48 k
  6. Summitville35 k
  7. Funkstown35 k
  8. Richland32 k
  9. Rainsville27 k

Close relatives, at one scale

  1. Miami200 cm · Oxyaquic Hapludalfs
  2. Miamian200 cm · Oxyaquic Hapludalfs
  3. Stuttgart203 cm · Albaquultic Hapludalfs
  4. Lester203 cm · Mollic Hapludalfs

Horizon by horizon

HorizonLayerDepthThickness
ApTopsoil: plowed0–20 cm0–8 in20 cm
Bt1Subsoil: clay build-up20–33 cm8–13 in13 cm
2Bt2Subsoil: clay build-up, different parent material33–58 cm13–23 in25 cm
2Bt3Subsoil: clay build-up, different parent material58–79 cm23–31 in21 cm
2BCtSubsoil grading to parent material: clay build-up, different parent material79–91 cm31–36 in12 cm
2CdParent material: dense, roots restricted, different parent material91–200 cm36–79 in109 cm

Sources: USDA–NRCS Official Series Description (revised 2021-11), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides