Difference between revisions of "Mineral material (WRB)"

Revision as of 12:21, 26 October 2009

Mineral material is one of the diagnostic materials used, in the WRB system, to discriminate some soils from others.

Mineral material (from Celtic mine, mineral), the soil properties are dominated by mineral components.

Mineral material has one or both of the following :

less than 20 percent organic carbon in the fine earth (by mass) if saturated with water for less than 30 consecutive days in most years without being drained

or :

less than (12 + [clay percentage of the mineral fraction × 0.1]) percent organic carbon in the fine earth (by mass)

or :

less than 18 percent organic carbon in the fine earth (by mass), if the mineral fraction has 60 percent or more clay

@@ Line 2: / Line 2: @@
 ==Description==
-Mineral material :
+Mineral material (from Celtic ''mine'', mineral), the soil properties are dominated by mineral components.
+==Diagnostic criteria==
+Mineral material has one or both of the following :
+* less than 20 percent organic carbon in the fine earth (by mass) if saturated with water for less than 30 consecutive days in most years without being drained
+or :
+* less than (12 + [clay percentage of the mineral fraction × 0.1]) percent organic carbon in the fine earth (by mass)
+or :
+* less than 18 percent organic carbon in the fine earth (by mass), if the mineral fraction has 60 percent or more clay
 ==RSG in which mineral material can be observed==