Ключи к почвенной таксономии 2014

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

EDEJ.  Other Haploperox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Haploperox

EDEK.  Other Haploperox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Haploperox

EDEL.  Other Haploperox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Haploperox

EDEM.  Other Haploperox that have 50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Haploperox

EDEN.  Other Haploperox.

Typic Haploperox

Kandiperox

Key to Subgroups

EDDA.  Kandiperox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Kandiperox

EDDB.  Other Kandiperox that have a petroferric contact within 125 cm of the mineral soil surface.

Petroferric Kandiperox

EDDC.  Other Kandiperox that have, within 125 cm of the mineral soil surface, both:

1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Kandiperox

within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Kandiperox

EDDF.  Other Kandiperox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Kandiperox

EDDG.  Other Kandiperox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Kandiperox

EDDH.  Other Kandiperox that have, throughout one or more horizons with a total thickness of 18 cm or more within 75 cm of the mineral soil surface, a fine-earth fraction with both a bulk density of 1.0 g/cm3 or less, measured at 33 kPa water retention, and Al plus 1/2 Fe percentages (by ammonium oxalate) totaling more than 1.0.

Andic Kandiperox

EDDI.  Other Kandiperox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

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EDDJ.  Other Kandiperox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Kandiperox

EDDK.  Other Kandiperox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Kandiperox

EDDL.  Other Kandiperox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Kandiperox

EDDM.  Other Kandiperox that have 50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Kandiperox

EDDN.  Other Kandiperox.

Typic Kandiperox

Sombriperox

Key to Subgroups

organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Sombriperox

EDAD.  Other Sombriperox.

Typic Sombriperox

Torrox

Key to Great Groups

apparent ECEC of less than 1.50 cmol(+) per kg clay and a pH value (1N KCl) of 5.0 or more.

Acrotorrox

Key to Subgroups

EBAA.  Acrotorrox that have a petroferric contact within 125 cm of the mineral soil surface.

Eutrotorrox

Key to Subgroups

EBBA.  Eutrotorrox that have a petroferric contact within 125 cm of the mineral soil surface.

Petroferric Eutrotorrox

EBBB.  Other Eutrotorrox that have a lithic contact within 125 cm of the mineral soil surface.

Lithic Eutrotorrox

EBBC.  Other Eutrotorrox.

Typic Eutrotorrox

Haplotorrox

Key to Subgroups

EBCA.  Haplotorrox that have a petroferric contact within 125 cm of the mineral soil surface.

Petroferric Haplotorrox

EBCB.  Other Haplotorrox that have a lithic contact within

125 cm of the mineral soil surface.

Lithic Haplotorrox

Udox

Key to Great Groups

EEA.  Udox that have a sombric horizon within 150 cm of the mineral soil surface.

Sombriudox, p. 267

EEB.  Other Udox that have, in one or more subhorizons of an oxic or kandic horizon within 150 cm of the mineral soil surface, an apparent ECEC of less than 1.50 cmol(+) per kg clay and a pH value (1N KCl) of 5.0 or more.

Acrudox, p. 263

EEC.  Other Udox that have a base saturation (by NH4OAc) of

35 percent or more in all horizons within 125 cm of the mineral soil surface.

Eutrudox, p. 264

EED.  Other Udox that have a kandic horizon within 150 cm of the mineral soil surface.

Kandiudox, p. 266

EEE.  Other Udox.

Hapludox, p. 265

Acrudox

Key to Subgroups

EEBA.  Acrudox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Acrudox

soil surface, both:

1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Acrudox

EEBD.  OtherAcrudox that have a lithic contact within 125 cm of the mineral soil surface.

Lithic Acrudox

EEBE.  OtherAcrudox that have, within 125 cm of the mineral soil surface, both:

1.  A delta pH (KCl pH minus 1:1 water pH) with a 0 or net positive charge in a layer 18 cm or more thick; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Anionic Aquic Acrudox

EEBF.  OtherAcrudox that have a delta pH (KCl pH minus

1:1 water pH) with a 0 or net positive charge in a layer 18 cm or more thick within 125 cm of the mineral soil surface.

Anionic Acrudox

EEBG.  OtherAcrudox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Acrudox

EEBH.  OtherAcrudox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Acrudox

EEBI.  OtherAcrudox that have a base saturation (by NH4OAc) of 35 percent or more in all horizons within 125 cm of the mineral soil surface.

Eutric Acrudox

EEBJ.  OtherAcrudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

Humic Rhodic Acrudox

EEBK.  OtherAcrudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Acrudox

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EEBL.  OtherAcrudox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Acrudox

EEBM.  OtherAcrudox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Acrudox

EEBN.  OtherAcrudox that have 50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Acrudox

EEBO.  OtherAcrudox.

Typic Acrudox

Eutrudox

Key to Subgroups

EECA.  Eutrudox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Eutrudox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Eutrudox

EECD.  Other Eutrudox that have a lithic contact within 125 cm of the mineral soil surface.

Lithic Eutrudox

EECE.  Other Eutrudox that have, in one or more horizons within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Eutrudox

EECF.  Other Eutrudox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Eutrudox

EECG.  Other Eutrudox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Eutrudox

EECH.  Other Eutrudox that have a kandic horizon within 150 cm of the mineral soil surface.

Kandiudalfic Eutrudox

EECI.  Other Eutrudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  An oxic horizon that has its lower boundary within 125 cm of the mineral soil surface.

Humic Inceptic Eutrudox

EECJ.  Other Eutrudox that have an oxic horizon that has its lower boundary within 125 cm of the mineral soil surface.

Inceptic Eutrudox

EECK.  Other Eutrudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

EECL.  Other Eutrudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Eutrudox

EECM.  Other Eutrudox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Eutrudox

EECN.  Other Eutrudox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Eutrudox

EECO.  Other Eutrudox that have 50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Eutrudox

EECP.  Other Eutrudox.

Typic Eutrudox

Hapludox

Key to Subgroups

EEEA.  Hapludox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Hapludox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Hapludox

EEED.  Other Hapludox that have a lithic contact within 125 cm of the mineral soil surface.

Lithic Hapludox

EEEE.  Other Hapludox that have, in one or more horizons within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Hapludox

EEEF.  Other Hapludox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Hapludox

EEEG.  Other Hapludox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Hapludox

EEEH.  Other Hapludox that have an oxic horizon that has its lower boundary within 125 cm of the mineral soil surface.

Inceptic Hapludox

EEEI.  Other Hapludox that have, throughout one or more horizons with a total thickness of 18 cm or more within 75 cm of the mineral soil surface, a fine-earth fraction with both a bulk density of 1.0 g/cm3 or less, measured at 33 kPa water retention, and Al plus 1/2 Fe percentages (by ammonium oxalate) totaling more than 1.0.

Andic Hapludox

EEEJ.  Other Hapludox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

EEEK.  Other Hapludox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Hapludox

EEEL.  Other Hapludox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Hapludox

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EEEM.  Other Hapludox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Hapludox

EEEN.  Other Hapludox that have 50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Hapludox

EEEO.  Other Hapludox.

Typic Hapludox

Kandiudox

Key to Subgroups

EEDA.  Kandiudox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Kandiudox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Kandiudox

EEDF.  Other Kandiudox hat have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Kandiudox

EEDG.  Other Kandiudox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Kandiudox

EEDH.  Other Kandiudox that have, throughout one or more horizons with a total thickness of 18 cm or more within 75 cm of the mineral soil surface, a fine-earth fraction with both a bulk density of 1.0 g/cm3 or less, measured at 33 kPa water retention, and Al plus 1/2 Fe percentages (by ammonium oxalate) totaling more than 1.0.

Andic Kandiudox

EEDI.  Other Kandiudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

EEDJ.  Other Kandiudox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Kandiudox

EEDK.  Other Kandiudox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Kandiudox

EEDL.  Other Kandiudox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Kandiudox

EEDM.  Other Kandiudox that have 50 percent or more hue

of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Kandiudox

EEDN.  Other Kandiudox.

Typic Kandiudox

Sombriudox

Key to Subgroups

EEAA.  Sombriudox that have a petroferric contact within 125 cm of the mineral soil surface.

Petroferric Sombriudox

EEAB.  Other Sombriudox that have a lithic contact within

125 cm of the mineral soil surface.

Lithic Sombriudox

EEAC.  Other Sombriudox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Sombriudox

EEAD.  Other Sombriudox.

Typic Sombriudox

Ustox

Key to Great Groups

an oxic or kandic horizon within 150 cm of the mineral soil surface, an apparent ECEC of less than 1.50 cmol(+) per kg clay and a pH value (1N KCl) of 5.0 or more.

Acrustox

Key to Subgroups

ECBA.  Acrustox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Acrustox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Acrustox

mineral soil surface, both:

1.  A delta pH (KCl pH minus 1:1 water pH) with a 0 or net positive charge in a layer 18 cm or more thick; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Anionic Aquic Acrustox

ECBF.  OtherAcrustox that have a delta pH (KCl pH minus

1:1 water pH) with a 0 or net positive charge in a layer 18 cm or more thick within 125 cm of the mineral soil surface.

Anionic Acrustox

ECBG.  OtherAcrustox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Acrustox

ECBH.  OtherAcrustox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and

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also aquic conditions for some time in normal years (or artificial drainage).

Aquic Acrustox

ECBI.  OtherAcrustox that have a base saturation (by NH4OAc) of 35 percent or more in all horizons within 125 cm of the mineral soil surface.

Eutric Acrustox

ECBJ.  OtherAcrustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

ECBK.  OtherAcrustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and 2.  A value, moist, of 3 or less.

Eutrustox

Key to Subgroups

ECCA.  Eutrustox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Eutrustox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Eutrustox

within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Eutrustox

ECCF.  Other Eutrustox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Eutrustox

ECCG.  Other Eutrustox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Eutrustox

ECCH.  Other Eutrustox that have a kandic horizon within

150 cm of the mineral soil surface.

Kandiustalfic Eutrustox

ECCI.  Other Eutrustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  An oxic horizon that has its lower boundary within 125 cm of the mineral soil surface.

Humic Inceptic Eutrustox

ECCJ.  Other Eutrustox that have an oxic horizon that has its lower boundary within 125 cm of the mineral soil surface.

Inceptic Eutrustox

ECCK.  Other Eutrustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

ECCL.  Other Eutrustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Eutrustox

ECCM.  Other Eutrustox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Eutrustox

ECCN.  Other Eutrustox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and 2.  A value, moist, of 3 or less.

Haplustox

Key to Subgroups

ECEA.  Haplustox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Haplustox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Haplustox

within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Haplustox

ECEF.  Other Haplustox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Haplustox

ECEG.  Other Haplustox that have, within 125 cm of the mineral soil surface, both:

1.  The lower boundary of the oxic horizon; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aqueptic Haplustox

ECEH.  Other Haplustox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with

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a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Haplustox

ECEI.  Other Haplustox that are saturated with water in one or more layers within 100 cm of the mineral soil surface in normal years for either or both:

1.  20 or more consecutive days; or

2.  30 or more cumulative days.

Oxyaquic Haplustox

ECEJ.  Other Haplustox that have an oxic horizon that has its lower boundary within 125 cm of the mineral soil surface.

Inceptic Haplustox

ECEK.  Other Haplustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  In all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

ECEL.  Other Haplustox that have both:

1.  16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm; and

2.  50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more at a depth between 25 and 125 cm from the mineral soil surface.

Humic Xanthic Haplustox

ECEM.  Other Haplustox that have 16 kg/m2 or more organic carbon between the mineral soil surface and a depth of 100 cm.

Humic Haplustox

ECEN.  Other Haplustox that have, in all horizons at a depth between 25 and 125 cm from the mineral soil surface, more than 50 percent colors that have both of the following:

1.  Hue of 2.5YR or redder; and

2.  A value, moist, of 3 or less.

Rhodic Haplustox

ECEO.  Other Haplustox that have 50 percent or more hue of 7.5YR or yellower and a color value, moist, of 6 or more

at a depth between 25 and 125 cm from the mineral soil surface.

Xanthic Haplustox

ECEP.  Other Haplustox.

Typic Haplustox

Kandiustox

Key to Subgroups

ECDA.  Kandiustox that have, within 125 cm of the mineral soil surface, both:

1.  A petroferric contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Petroferric Kandiustox

mineral soil surface, both: 1.  A lithic contact; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Aquic Lithic Kandiustox

within 125 cm of the mineral soil surface, both:

1.  5 percent or more (by volume) plinthite; and

2.  Redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and also aquic conditions for some time in normal years (or artificial drainage).

Plinthaquic Kandiustox

ECDF.  Other Kandiustox that have 5 percent or more (by volume) plinthite in one or more horizons within 125 cm of the mineral soil surface.

Plinthic Kandiustox

ECDG.  Other Kandiustox that have, in one or more horizons within 125 cm of the mineral soil surface, redox depletions with a color value, moist, of 4 or more and chroma of 2 or less and