Soil Series Atlas

Zahl soil series

Fine-loamy, mixed, superactive, frigid Typic Calciustolls

050100150cm1 ft2 ft3 ft4 ftATopsoil0–13 cm · 0–5 inBkSubsoil · lime (carbonate) build-up13–51 cm · 5–20 inCParent material51–152 cm · 20–60 in050100150cmATopsoil0–13 cm · 0–5 inBkSubsoil · lime(carbonate) build-up13–51 cm · 5–20 inCParent material51–152 cm · 20–60 in
Typical pedon, to scale: 152 cm (60 in), 3 horizons.

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

Zahl is mapped on 1.89 million acres in 3 states, 43rd nationally by area. In North Dakota only one series covers more ground. Besides it, only Ector and Tarrant belong to the great group Calciustolls in this atlas. Its solum is 53 cm thinner than the median for Mollisols.

Depth
Very deep
Drainage
Well drained
Water movement
Moderately slow

Compare with another seriesSimilar series in the finder

Where Zahl is mapped

1,891,363 acres in 39 soil survey areas, from current SSURGO data.

AlabamaArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth Dakota: 1,632,977 acresOklahomaPennsylvaniaSouth Dakota: 192,027 acresTexasWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaIowaKentuckyMarylandMichiganMississippiMontana: 66,358 acresNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Zahl acres

  1. North Dakota86%
  2. South Dakota10%
  3. Montana4%

In the field

Drainage

Well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Permeability

Moderately slow

SlowFast
Parent material
Glacial till
Landform
Till plains, moraines, valleys/basins
Type location
North Dakota

How it is classified

  1. OrderMollisols
  2. SuborderUstolls
  3. Great groupCalciustolls
  4. SubgroupTypic Calciustolls
  5. FamilyFine-loamy, mixed, superactive, frigid Typic Calciustollsfine-loamy particle-size classmixed mineralogy classsuperactive cation-exchange activity classfrigid soil temperature regime

Against other Mollisols

Zahl makes up 0.43% of all mapped Mollisols — the 13th largest of 7,593 series in the order.

Solum thickness (topsoil + subsoil)

51 cm under a median of 104 cm

Depth to the subsoil

13 cm under a median of 25 cm

Its relatives

7 other established series share the family “Fine-loamy, mixed, superactive, frigid Typic Calciustolls”

  1. Zahl1.9 M
  2. Kiev80 k
  3. Beanlake67 k
  4. Roundor55 k
  5. Ipano31 k
  6. Mudcree12 k
  7. Minnimaud10 k
  8. Osote7 k

Close relatives, at one scale

  1. Zahl152 cm · Typic Calciustolls
  2. Ector102 cm · Lithic Calciustolls
  3. Tarrant76 cm · Lithic Calciustolls

Horizon by horizon

HorizonLayerDepthThickness
ATopsoil0–13 cm0–5 in13 cm
BkSubsoil: lime (carbonate) build-up13–51 cm5–20 in38 cm
CParent material51–152 cm20–60 in101 cm

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