Classifications: International WRB and U.S. Soil Taxonomy - Major Soil Groups of the World - page 143

Table 4.18 Analysis of the expression 'Vitric Melanudand'.

Order Suborder Great Group Subgroup

and ud Melan Vitric

The soil is an It has a moisture This Udand is This Melanudand

Andisol (Table 4.14) regime of udic black (melanic is rich in glass

(humid) type epipedon). See (Table 4.16)

(Table 4.15) Table 4.16

When all is said and done, we have an Andosol linked to a humid
climate; it is black and rich in volcanic glass.

We examine this Lithic Hap-rend-oll in Table 4.19.

Third example: Lithic Haprendoll

Table 4.19 Analysis of the expression 'Lithic Haprendoll'.

Order Suborder Great Group Subgroup

oll rend Hap Lithic

It is a Mollisol Shows that the soil Characterizes weak Indicates (for the

(mollic epipedon or, is less than 50 cm development second time) that

at the least, base thick (Table 4.15) (Table 4.16) the parent material

saturation > 50%). occurs within 50

See Table 4.14 cm (Table 4.13)

What we have is a Leptic Calcisol (WRB).
In the same way a 'Typic Halaquept' is an Inceptisol with saturated
moisture regime, having saline character.

The names can be a little more complex and detailed than those seen till
now. For example, we can add a qualifier so that an 'Aquic Haplustalf'
(classic formative structure of a name) becomes an 'Aquic Arenic
Haplustalf' (Arenic to specify a property of the soil). It should be noted
that we have 'Hapl' and not 'Hap' as in 'Haprendoll' (Table 4.19). This
difference corresponds to what has been indicated in Table 4.16.
We can also use two Orders to compose the name of an intergrade
soil. For example, an 'Aquultic Haplustalf' is an Alfisol with ustic
moisture regime, with mainly poorly developed horizons (Hapl), but
which resembles Ultisols with aquic moisture regime (giving the
qualifier Aquultic).

Examples of complex cases