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Elementselektive Verwitterung und Verlagerung in Böden auf Bärhaldegranit und ihre Bilanzierung
Author(s) -
Keilen K.,
Stahr K.,
Zöttl H. W.
Publication year - 1976
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19761390505
Subject(s) - podzol , weathering , soil water , humus , chemistry , geology , mineralogy , geochemistry , soil science
Differences in weathering and translocation between several elements in soils formed from Bärhalde‐granite including element balancing Braunerde and iron‐humus podzol profiles formed from granitic scree under the cool‐humid climate of the higher elevations of the Black Forest (SW‐Germany) were analyzed in elements of major importance in soil formation. Their content in the 2–20 mm fragments and < 2 mm soil was compared with the parent rock. Na was lower in the 2–20 mm fragments and in the < 2 mm soil, compared with the parent rock data. Fe, Al, Mn, Ti were reduced in the 2–20 mm fragments but enriched in the < 2 mm soil. K shows in the Braunerde profiles higher contents in the fragments than in the parent rock, but lower contents in the < 2 mm soil. The podzol profiles had lower K contents in both fragments and soil. Si is enriched in the 2–20 mm fragments of all analysed profiles. These differences in the behaviour during soil formation are explained by element‐selective weathering of the primary minerals. Element translocations in the soil profiles were balanced. The calculations demonstrated a strong decrease in Na in all soils, a clear decrease of Al and Mn in the podzol profiles, and decrease of Fe only in the upper soil of the podzol profiles. The queue of mobility runs: Na < Ca < Mg < K < Mn < Al < Fe < Ti = Si.