Which of the following best describes the process of eluviation?
A) removal of very fine- sized silt and clay particles from the A and E soil horizons
B) buildup of calcite in the B- horizon of pedocal soils
C) feldspar decomposition and leaching of the soluble products from the C soil horizon
D) removal of soluble chemical constituents from the A and B soil horizons

Question

Quizplus · Accepted Answer

Eluviation refers to the removal of fine particles and dissolved substances from one soil horizon to another by the downward movement of water. The process is most effective in the A and E horizons, where there is greater biological activity and a higher concentration of organic matter. The process is essential for removing excess salts and other harmful chemicals from the soil and for maintaining soil fertility. Choice B is incorrect because it refers to a specific type of calcareous soil formation, not eluviation. Choice C is incorrect because it describes weathering and leaching processes that occur within the soil, but not eluviation specifically. Choice D is partially correct, as eluviation can involve the removal of dissolved substances, but it also involves the removal of fine particles.

Which of the Following Best Describes the Process of Eluviation