Soil Series Atlas

Bayamon soil series

Very-fine, kaolinitic, isohyperthermic Typic Hapludox

050100150cm1 ft2 ft3 ft4 ft5 ftApTopsoil · plowed0–15 cm · 0–6 inA/BMixed topsoil and subsoil15–28 cm · 6–11 inBo1Subsoil · residual iron and aluminumoxides28–51 cm · 11–20 inBo2Subsoil · residual iron and aluminumoxides51–84 cm · 20–33 inBo3Subsoil · residual iron and aluminumoxides84–119 cm · 33–47 inBo4Subsoil · residual iron and aluminumoxides119–155 cm · 47–61 inBo5Subsoil · residual iron and aluminumoxides155–168 cm · 61–66 in050100150cmApTopsoil · plowed0–15 cm · 0–6 inA/BMixed topsoil andsubsoil15–28 cm · 6–11 inBo1Subsoil · residual ironand aluminum oxides28–51 cm · 11–20 inBo2Subsoil · residual ironand aluminum oxides51–84 cm · 20–33 inBo3Subsoil · residual ironand aluminum oxides84–119 cm · 33–47 inBo4Subsoil · residual ironand aluminum oxides119–155 cm · 47–61 inBo5Subsoil · residual ironand aluminum oxides155–168 cm · 61–66 in
Typical pedon, to scale: 168 cm (66 in), 7 horizons.

Oxisols — very highly weathered soils of the tropics

Nationally Bayamon is a small series: 22,290 acres, 9,765th of 24,791 by area. It is the only series in the atlas that belongs to the great group Hapludox. Every mapped acre is in Puerto Rico. It is the state soil of Puerto Rico.

Depth
Very deep
Drainage
Well drained
Water movement
Very slow

Compare with another seriesSimilar series in the finder

Where Bayamon is mapped

22,290 acres in 2 soil survey areas, from current SSURGO data.

1.2%

of all mapped soil in Puerto Rico is Bayamon: 22,290 acres, the 22nd most extensive of 229 series mapped there.

Puerto Rico22,290 acres · 22nd of 229 series

In the field

Drainage

Well drained

Drains fastStays wet

61 other atlas series are well drained, none of them Oxisols.

Soil depth

Very deep

ShallowDeep

67 other atlas series are classed very deep, none of them Oxisols.

Permeability

Very slow

SlowFast

5 other atlas series have very slow permeability, none of them Oxisols.

Parent material
Unconsolidated sediments
Landform
Coastal plains, valleys/basins, hills
Type location
Puerto Rico

How it is classified

  1. OrderOxisols
  2. SuborderUdox
  3. Great groupHapludox
  4. SubgroupTypic Hapludox
  5. FamilyVery-fine, kaolinitic, isohyperthermic Typic Hapludoxvery-fine particle-size classkaolinitic mineralogy classisohyperthermic soil temperature regime

Against other Oxisols

Bayamon makes up 4.54% of all mapped Oxisols — the 6th largest of 61 series in the order.

Solum thickness (topsoil + subsoil)

168 cm over a median of 152 cm

Depth described

168 cm over a median of 152 cm

Its relatives

1 other established series share the family “Very-fine, kaolinitic, isohyperthermic Typic Hapludox”

  1. Bayamon22 k
  2. Coto11 k

Horizon by horizon

HorizonLayerDepthThickness
ApTopsoil: plowed0–15 cm0–6 in15 cm
A/BMixed topsoil and subsoil15–28 cm6–11 in13 cm
Bo1Subsoil: residual iron and aluminum oxides28–51 cm11–20 in23 cm
Bo2Subsoil: residual iron and aluminum oxides51–84 cm20–33 in33 cm
Bo3Subsoil: residual iron and aluminum oxides84–119 cm33–47 in35 cm
Bo4Subsoil: residual iron and aluminum oxides119–155 cm47–61 in36 cm
Bo5Subsoil: residual iron and aluminum oxides155–168 cm61–66 in13 cm

Sources: USDA–NRCS Official Series Description (revised 1999-08), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides