Difference between revisions of "Histosol"

From Wicri Urban Soils
imported>Thierry Daunois
imported>Thierry Daunois
Line 1: Line 1:
 
An '''histosol''' (HS) can be defined through :
 
An '''histosol''' (HS) can be defined through :
  
* a [[Histic horizon (WRB)|histic]] or [[Folic horizon (WRB)|folic]] horizon
+
* a [[Has for diagnostic horizon::Histic horizon (WRB)|histic]] or [[Folic horizon (WRB)|folic]] horizon
 
** 10 cm or more thick from the soil surface to a lithic or paralithic contact
 
** 10 cm or more thick from the soil surface to a lithic or paralithic contact
 
** 40 cm or more thick and starting within 30 cm from the soil surface
 
** 40 cm or more thick and starting within 30 cm from the soil surface

Revision as of 16:27, 20 October 2009

An histosol (HS) can be defined through :

  • a histic or folic horizon
    • 10 cm or more thick from the soil surface to a lithic or paralithic contact
    • 40 cm or more thick and starting within 30 cm from the soil surface

and :

  • the lack of an andic or vitric horizon starting within 30 cm from the soil surface

Possible qualifiers

For each RSG, there are some possible prefix and suffix qualifiers :

Prefix qualifiers

 
Suffix qualifiers
 
 

See also

  • The Histosol's page on Wikipedia
  • The FAO's map of the distribution of histosols in the world

Source

fr:Histosol