Silica: Pedogenic Accumulation
2017 ENCYCLOPEDIA OF SOIL SCIENCE, VOLS I-III, 3RD EDITION 2017 null(卷), null(期), (2012-2014页)
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Pedogenic silica is formed in arid, semiarid, and Mediterranean climates where there is adequate precipitation to mobilize the silica but not so much as to leach the silica out of the profile. In its most advanced form, it cements the soil fabric to form extremely hard horizons known as duripans or silcrete.
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