Difference between revisions of "Histosol"

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An '''histosol''' (HS) can be defined through :
 
An '''histosol''' (HS) can be defined through :
  
* a histic or folic horizon
+
* a [[Has for diagnostic horizon::Histic horizon (WRB)|histic]] or [[Has for diagnostic horizon::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
 
and :
 
and :
* the lack of an andic or vitric horizon starting within 30 cm from the soil surface
+
* the lack of an [[Has for diagnostic horizon::Andic horizon (WRB)|andic]] or [[Has for diagnostic horizon::Vitric horizon (WRB)|vitric]] horizon starting within 30 cm from the soil surface
 +
 
 +
==Possible qualifiers==
 +
 
 +
For each RSG, there are some possible prefix and suffix qualifiers :
 +
 
 +
{|width="60%" cellspacing="0" cellpadding="0" style="margin-top:0.6em"
 +
|-
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|width="50%" valign="middle" style="border:1px solid #CCF7CC;background:#EEFFEE;padding:7px;text-align:center"|
 +
<big>'''Prefix qualifiers'''</big><br/>
 +
|style="padding:4px;font-size:1px"|&nbsp;
 +
|width="50%" valign="middle" style="border:1px solid #DDDDF7;background:#F7F7FF;padding:7px"|
 +
<center><big>'''Suffix qualifiers'''</big></center>
 +
|-
 +
|style="font-size:0.6em;line-height:0.6em"|&nbsp;
 +
|-
 +
|valign="top" class="cadregris" style="margin-bottom:0.6em;border:1px solid #AAAAAA;background-color:#FCFCFC;padding:7px"|
 +
* [[Has for prefix qualifier::Folic (WRB qualifier)|Folic]]
 +
* [[Has for prefix qualifier::Limnic (WRB qualifier)|Limnic]]
 +
* [[Has for prefix qualifier::Lignic (WRB qualifier)|Lignic]]
 +
* [[Has for prefix qualifier::Fibric (WRB qualifier)|Fibric]]
 +
* [[Has for prefix qualifier::Hemic (WRB qualifier)|Hemic]]
 +
* [[Has for prefix qualifier::Sapric (WRB qualifier)|Sapric]]
 +
* [[Has for prefix qualifier::Floatic (WRB qualifier)|Floatic]]
 +
* [[Has for prefix qualifier::Subaquatic (WRB qualifier)|Subaquatic]]
 +
* [[Has for prefix qualifier::Glacic (WRB qualifier)|Glacic]]
 +
* [[Has for prefix qualifier::Ombric (WRB qualifier)|Ombric]]
 +
* [[Has for prefix qualifier::Rheic (WRB qualifier)|Rheic]]
 +
* [[Has for prefix qualifier::Technic (WRB qualifier)|Technic]]
 +
* [[Has for prefix qualifier::Cryic (WRB qualifier)|Cryic]]
 +
* [[Has for prefix qualifier::Hyperskeletic (WRB qualifier)|Hyperskeletic]]
 +
* [[Has for prefix qualifier::Leptic (WRB qualifier)|Leptic]]
 +
* [[Has for prefix qualifier::Vitric (WRB qualifier)|Vitric]]
 +
* [[Has for prefix qualifier::Andic (WRB qualifier)|Andic]]
 +
* [[Has for prefix qualifier::Salic (WRB qualifier)|Salic]]
 +
* [[Has for prefix qualifier::Calcic (WRB qualifier)|Calcic]]
 +
 
 +
<!-- ============================================= -->
 +
|style="font-size:0.6em;line-height:0.6em"|&nbsp;
 +
| valign="top" class="cadregris" style="margin-bottom:0.6em;border:1px solid #AAAAAA;background-color:#FCFCFC;padding:7px"|
 +
* [[Has for suffix qualifier::Thionic (WRB qualifier)|Thionic]]
 +
* [[Has for suffix qualifier::Ornithic (WRB qualifier)|Ornithic]]
 +
* [[Has for suffix qualifier::Calcaric (WRB qualifier)|Calcaric]]
 +
* [[Has for suffix qualifier::Sodic (WRB qualifier)|Sodic]]
 +
* [[Has for suffix qualifier::Alcalic (WRB qualifier)|Alcalic]]
 +
* [[Has for suffix qualifier::Toxic (WRB qualifier)|Toxic]]
 +
* [[Has for suffix qualifier::Dystric (WRB qualifier)|Dystric]]
 +
* [[Has for suffix qualifier::Eutric (WRB qualifier)|Eutric]]
 +
* [[Has for suffix qualifier::Turbic (WRB qualifier)|Turbic]]
 +
* [[Has for suffix qualifier::Gelic (WRB qualifier)|Gelic]]
 +
* [[Has for suffix qualifier::Petrogleyic (WRB qualifier)|Petrogleyic]]
 +
* [[Has for suffix qualifier::Placic (WRB qualifier)|Placic]]
 +
* [[Has for suffix qualifier::Skeletic (WRB qualifier)|Skeletic]]
 +
* [[Has for suffix qualifier::Tidalic (WRB qualifier)|Tidalic]]
 +
* [[Has for suffix qualifier::Drainic (WRB qualifier)|Drainic]]
 +
* [[Has for suffix qualifier::Transportic (WRB qualifier)|Transportic]]
 +
* [[Has for suffix qualifier::Novic (WRB qualifier)|Novic]]
 +
|}
 +
 
 +
==See also==
 +
 
 +
* The Histosol's page on [http://en.wikipedia.org/wiki/Histosol Wikipedia]
 +
* The [http://www.fao.org/ag/agl/agll/wrb/wrbmaps/htm/histos.htm FAO's map] of the distribution of histosols in the world
  
 
==Source==
 
==Source==

Latest revision as of 18:21, 28 June 2017

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