cheluviation

cheluviation

(ˌkiːluːvɪˈeɪʃən)
n
the leaching of chelates through soil
References in periodicals archive ?
Soils set by Fe/AI chemistry Allophanes or Al-humus complexes: Andosols Cheluviation and chilluviation: Podzols Accumulation of Fe under hydromorphic conditions: Plinthosols Low activity clay, P fixation, strongly Nitisols structured: Dominance of kaolinite and sesquioxides: Ferralsols 6.
Therefore the ochric epipedon with a very low content of organic carbon is eluvial in origin, and the annual increase in total cheluviation in depth is about 55 [micro]m [yr.sup.-1].
In fact, two processes occur: the first is the formation and migration of soluble chelate compounds of humus with iron and aluminum cations (cheluviation), and the second is their accumulation at depth.