Soil Series Atlas

Menfro soil series

Fine-silty, mixed, superactive, mesic Typic Hapludalfs

050100150200cm1 ft2 ft3 ft4 ft5 ft6 ftATopsoil0–8 cm · 0–3 inELeached layer8–15 cm · 3–6 inBESubsoil with leached traits15–28 cm · 6–11 inBt1Subsoil · clay build-up28–43 cm · 11–17 inBt2Subsoil · clay build-up43–61 cm · 17–24 inBt3Subsoil · clay build-up61–84 cm · 24–33 inBt4Subsoil · clay build-up84–102 cm · 33–40 inBt5Subsoil · clay build-up102–130 cm · 40–51 inBt6Subsoil · clay build-up130–157 cm · 51–62 inBt7Subsoil · clay build-up157–203 cm · 62–80 in050100150200cmATopsoil0–8 cm · 0–3 inELeached layer8–15 cm · 3–6 inBESubsoil with leachedtraits15–28 cm · 6–11 inBt1Subsoil · clay build-up28–43 cm · 11–17 inBt2Subsoil · clay build-up43–61 cm · 17–24 inBt3Subsoil · clay build-up61–84 cm · 24–33 inBt4Subsoil · clay build-up84–102 cm · 33–40 inBt5Subsoil · clay build-up102–130 cm · 40–51 inBt6Subsoil · clay build-up130–157 cm · 51–62 inBt7Subsoil · clay build-up157–203 cm · 62–80 in
Typical pedon, to scale: 203 cm (80 in), 10 horizons.

Alfisols — moderately leached soils with a clay-enriched subsoil

Menfro is mapped on 1.24 million acres in 3 states, 117th nationally by area. It shares its full family classification with the larger Fayette, but is described 18 cm deeper, reaches its subsoil 13 cm higher, and has its largest acreage in Missouri instead of Iowa. The typical pedon is split into 10 horizons, more than any other here. Its solum is 76 cm thicker than the median for Alfisols. It is the state soil of Missouri.

Depth
Very deep
Drainage
Well drained
Water movement
Moderately high

Compare with another seriesSimilar series in the finder

Where Menfro is mapped

1,235,346 acres in 56 soil survey areas, from current SSURGO data.

Its family-mate Fayette is larger overall, yet Menfro covers more ground in Missouri and Kentucky; it overlap in 1 state.

AlabamaArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouri: 767,070 acresWest VirginiaIllinois: 460,405 acresNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaIowaKentucky: 7,872 acresMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Menfro acres

  1. Missouri62%
  2. Illinois37%
  3. Kentucky0.6%
  • Rank in the state · share of its mapped soil
  • Missouri 7th of 524 · 1.89%
  • Illinois 16th of 582 · 1.44%

In the field

Drainage

Well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Water movement (Ksat)

Moderately high

SlowFast
Parent material
Loess
Landform
Uplands, hillslopes, benches
Major land resource areas
115
Type location
Missouri

How it is classified

Identical to Fayette at every level.

Against other Alfisols

Menfro makes up 0.45% of all mapped Alfisols — the 15th largest of 4,001 series in the order.

Solum thickness (topsoil + subsoil)

203 cm over a median of 127 cm

Depth to the subsoil

15 cm under a median of 23 cm

Depth described

203 cm over a median of 156 cm

Its relatives

34 established series share the family “Fine-silty, mixed, superactive, mesic Typic Hapludalfs”

By mapped acres Menfro is 2nd among them. Full family list

Close relatives, at one scale

  1. Menfro203 cm · Typic Hapludalfs
  2. Fayette185 cm · Typic Hapludalfs
  3. Stuttgart203 cm · Albaquultic Hapludalfs
  4. Lester203 cm · Mollic Hapludalfs

Horizon by horizon

HorizonLayerDepthThickness
ATopsoil0–8 cm0–3 in8 cm
ELeached layer8–15 cm3–6 in7 cm
BESubsoil with leached traits15–28 cm6–11 in13 cm
Bt1Subsoil: clay build-up28–43 cm11–17 in15 cm
Bt2Subsoil: clay build-up43–61 cm17–24 in18 cm
Bt3Subsoil: clay build-up61–84 cm24–33 in23 cm
Bt4Subsoil: clay build-up84–102 cm33–40 in18 cm
Bt5Subsoil: clay build-up102–130 cm40–51 in28 cm
Bt6Subsoil: clay build-up130–157 cm51–62 in27 cm
Bt7Subsoil: clay build-up157–203 cm62–80 in46 cm

Sources: USDA–NRCS Official Series Description (revised 2004-08), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides