Difference between revisions of "Leptosol"
From Wicri Urban Soils
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imported>Jacques Ducloy m (10 revisions imported) |
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A '''leptosol''' (LP) can be defined through : | A '''leptosol''' (LP) can be defined through : | ||
| − | * a limit in depth by continuous hard rock within 25 cm from the soil surface | + | * a limit in depth by [[Continuous rock (WRB)|continuous hard rock]] within 25 cm from the soil surface |
or : | or : | ||
* overlying material with a calcium carbonate equivalent of more than 40 percent within 25 cm from the soil surface | * overlying material with a calcium carbonate equivalent of more than 40 percent within 25 cm from the soil surface | ||
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* less than 10 percent (by weight) fine earth to a depth of 75 cm or more from the soil surface | * less than 10 percent (by weight) fine earth to a depth of 75 cm or more from the soil surface | ||
and : | and : | ||
| − | * no diagnostic horizons other than a [[Mollic horizon (WRB)|mollic]], [[Ochric horizon (WRB)|ochric]], [[Umbric horizon (WRB)|umbric]], [[Yermic horizon (WRB)|yermic]] or [[Vertic horizon (WRB)|vertic]] horizon | + | * no diagnostic horizons other than a [[Has for diagnostic horizon::Mollic horizon (WRB)|mollic]], [[Has for diagnostic horizon::Ochric horizon (WRB)|ochric]], [[Has for diagnostic horizon::Umbric horizon (WRB)|umbric]], [[Has for diagnostic horizon::Yermic horizon (WRB)|yermic]] or [[Has for diagnostic horizon::Vertic horizon (WRB)|vertic]] horizon |
==Possible qualifiers== | ==Possible qualifiers== | ||
Latest revision as of 19:24, 28 June 2017
A leptosol (LP) can be defined through :
- a limit in depth by continuous hard rock within 25 cm from the soil surface
or :
- overlying material with a calcium carbonate equivalent of more than 40 percent within 25 cm from the soil surface
or :
- less than 10 percent (by weight) fine earth to a depth of 75 cm or more from the soil surface
and :
Possible qualifiers
For each RSG, there are some possible prefix and suffix qualifiers :
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Prefix qualifiers |
| |
Source
- The FAO website
