ABSTRACT
Dynamics of the profiles ƒ The true justification of a new model is its ability to explain better what, till then, had been incomprehensible. The new model, in temperate and tropical zones (Chap. 6, § 6.7) enables us to show that the uniqueness of the pedogenetic mechanisms is exhibited through an infinite variety of soil profiles seen in nature. For us the front of clay formation (F1) and that of degradation (F2) are independent and have their own rates of advance. It is therefore of no use to examine if the losses from the E are equal to the presumed gains in the B. It is a misinterpretation. Let us examine a few typical cases (Fig. 8.7).
