Difference between revisions of "Leptosol"

From Wicri Urban Soils
imported>Thierry Daunois
imported>Thierry Daunois
Line 7: Line 7:
 
* 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, ochric, umbric, yermic or vertic horizon
+
* no diagnostic horizons other than a [[Mollic horizon (WRB)|mollic]], [[Orchric horizon (WRB)|ochric]], [[Umbric horizon (WRB)|umbric]], [[Yermic horizon (WRB)|yermic]] or [[Vertic horizon (WRB)|vertic]] horizon
  
 
==Possible qualifiers==
 
==Possible qualifiers==

Revision as of 16:02, 20 October 2009

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 :

Prefix qualifiers

 
Suffix qualifiers
 
 

Source

fr:Leptosol