Difference between revisions of "Gypsisol"
From Wicri Urban Soils
imported>Thierry Daunois |
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* a [[Has for diagnostic horizon::Gypsic horizon (WRB)|gypsic]] or [[Has for diagnostic horizon::Petrogypsic horizon (WRB)|petrogypsic]] horizon within 100 cm from the soil surface | * a [[Has for diagnostic horizon::Gypsic horizon (WRB)|gypsic]] or [[Has for diagnostic horizon::Petrogypsic horizon (WRB)|petrogypsic]] horizon within 100 cm from the soil surface | ||
or : | or : | ||
| − | * 15 percent (by volume) or more gypsum, which has accumulated under hydromorphic conditions, averaged over a depth of 100 cm | + | * 15 percent (by volume) or more gypsum, which has accumulated under hydromorphic conditions, averaged over a depth of 100 cm |
| − | no diagnostic horizons other than an [[Has for diagnostic horizon::Ochric horizon (WRB)|ochric]] or [[Has for diagnostic horizon::Cambic horizon (WRB)|cambic]] horizon, an [[Has for diagnostic horizon::Argic horizon (WRB)|argic horizon]] permeated with gypsum or calcium carbonate, a [[Has for diagnostic horizon::Vertic horizon (WRB)|vertic]], [[Has for diagnostic horizon::Calcic horizon (WRB)|calcic]] or [[Has for diagnostic horizon::Petrocalcic horizon (WRB)|petrocalcic]] horizon underlying the gypsic horizon | + | and : |
| + | * no diagnostic horizons other than an [[Has for diagnostic horizon::Ochric horizon (WRB)|ochric]] or [[Has for diagnostic horizon::Cambic horizon (WRB)|cambic]] horizon, an [[Has for diagnostic horizon::Argic horizon (WRB)|argic horizon]] permeated with gypsum or calcium carbonate, a [[Has for diagnostic horizon::Vertic horizon (WRB)|vertic]], [[Has for diagnostic horizon::Calcic horizon (WRB)|calcic]] or [[Has for diagnostic horizon::Petrocalcic horizon (WRB)|petrocalcic]] horizon underlying the gypsic horizon | ||
==Possible qualifiers== | ==Possible qualifiers== | ||
Revision as of 10:51, 22 October 2009
A gipsysol (GY) can be defined through :
- a gypsic or petrogypsic horizon within 100 cm from the soil surface
or :
- 15 percent (by volume) or more gypsum, which has accumulated under hydromorphic conditions, averaged over a depth of 100 cm
and :
- no diagnostic horizons other than an ochric or cambic horizon, an argic horizon permeated with gypsum or calcium carbonate, a vertic, calcic or petrocalcic horizon underlying the gypsic horizon
Possible qualifiers
For each RSG, there are some possible prefix and suffix qualifiers :
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Prefix qualifiers |
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Source
- The FAO website
