soil order

soil order

I have a question about soil orders. can one group of the horizon sequences have two soil orders? ) For example:

Ah (0-13 cm) 
Ae1 (13-25 cm) 
Ae2 (25-36 cm) 
Bt (36-66 cm) 
Btj (66-86 cm) 
C (86+ cm) 
(Deciduous forest under humid to sub-humid climate; good natural drainage)

it satisfies two soil order(Luvisolic and brunisolic order). which one is the right order? Or it can have two soil orders?

thanks!

GuanyuXing (talk)03:49, 18 April 2015

No, one sequence of horizons can ONLY belong to one order. The example you showed, can only be a Luvisol, since its Bt horizon is very well developed (i.e. thick) and the main soil formation process (i.e. accumulation of clay) is present in 50 cm of this soil profile. For this soil to be a Brunisol, it would not have a Bt horizon and its Btj horizon would need to be much thinner.

MajaKrzic (talk)12:45, 18 April 2015