in which climate region the amount of elluviation is maximum?
1/2marks
Answers
Explanation:
)
Organizing processes, such as aggregation, humus accumulation, horizonation, flocculation, illuviation–eluviation, and secondary mineral formation; and
2)
Dissipating processes, such as aggregate degradation, humus decomposition, homogenization, dispersion, mixing, and primary mineral weathering.
The first set of processes facilitates the formation of soil structural units, while the second set of processes tends to generate soil matrix; the two combined form soil architectures of various kinds. This dual partitioning of pedogenesis is consistent with the theory of “dissipative structure” proposed by Prigogine (1967), which suggests that a system forms its structure away from thermodynamic equilibrium by energy dissipation.
Soil systems with aggregates, horizons, and profiles formed over time represent more and more ordered states than their precursors (until a soil starts to degrade or when a regressive process occurs). Thus, soil formation and evolution can be conceptualized as consuming energy and exporting entropy (i.e. degraded energy) in order to “grow” and preserve its internal order in order to function (Lin, 2011). As energy dissipates and entropy exports, complex structures are formed through the soil system's self-organization in order to increase the efficiency in processing available free energy