Difference between revisions of "Alisol"
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An '''alisol''' (AL) can be defined through : | An '''alisol''' (AL) can be defined through : | ||
| − | * an [[Argic horizon (WRB)|argic horizon]], which has a cation exchange capacity (by 1 ''M'' NH<sub>4</sub>OAc) of 24 cmol<sub>c</sub> kg<sup>-1</sup> clay or more, either starting within 100 cm from the soil surface, or within 200 cm from the soil surface if the argic horizon is overlain by loamy sand or coarser textures throughout | + | * an [[Has for diagnostic horizon::Argic horizon (WRB)|argic horizon]], which has a cation exchange capacity (by 1 ''M'' NH<sub>4</sub>OAc) of 24 cmol<sub>c</sub> kg<sup>-1</sup> clay or more, either starting within 100 cm from the soil surface, or within 200 cm from the soil surface if the argic horizon is overlain by loamy sand or coarser textures throughout |
and : | and : | ||
* alic properties in the major part between 25 and 100 cm from the soil surface | * alic properties in the major part between 25 and 100 cm from the soil surface | ||
and : | and : | ||
| − | * no diagnostic horizons other than an [[Ochric horizon (WRB)|ochric]], [[Umbric horizon (WRB)|umbric]], [[Albic horizon (WRB)|albic]], [[Andic horizon (WRB)|andic]], [[Ferric horizon (WRB)|ferric]], [[Nitic horizon (WRB)|nitic]], [[Plinthic horizon (WRB)|plinthic]] or [[Vertic horizon (WRB)|vertic]] horizon | + | * no diagnostic horizons other than an [[Has for diagnostic horizon::Ochric horizon (WRB)|ochric]], [[Has for diagnostic horizon::Umbric horizon (WRB)|umbric]], [[Has for diagnostic horizon::Albic horizon (WRB)|albic]], [[Has for diagnostic horizon::Andic horizon (WRB)|andic]], [[Has for diagnostic horizon::Ferric horizon (WRB)|ferric]], [[Has for diagnostic horizon::Nitic horizon (WRB)|nitic]], [[Has for diagnostic horizon::Plinthic horizon (WRB)|plinthic]] or [[Has for diagnostic horizon::Vertic horizon (WRB)|vertic]] horizon |
==Possible qualifiers== | ==Possible qualifiers== | ||
Revision as of 10:33, 22 October 2009
An alisol (AL) can be defined through :
- an argic horizon, which has a cation exchange capacity (by 1 M NH4OAc) of 24 cmolc kg-1 clay or more, either starting within 100 cm from the soil surface, or within 200 cm from the soil surface if the argic horizon is overlain by loamy sand or coarser textures throughout
and :
- alic properties in the major part between 25 and 100 cm from the soil surface
and :
- no diagnostic horizons other than an ochric, umbric, albic, andic, ferric, nitic, plinthic or vertic 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
