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PODZOLIC SOILS WITH LUVISOLIC-LIKE MORPHOLOGIES IN THE UPPER SUBALPINE SUBZONE OF THE CANADIAN ROCKIES 2. GENESIS
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| Zeitschriftentitel: | Canadian Journal of Soil Science |
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| Personen und Körperschaften: | , , |
| In: | Canadian Journal of Soil Science, 61, 1981, 2, S. 337-350 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Canadian Science Publishing
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| Schlagwörter: |
| Zusammenfassung: | <jats:p> Clay mineralogy and soil fabric were used to determine processes responsible for development of Luvisolic-like characteristics in some soils of the upper subalpine subzone in the central Rocky Mountains of Alberta. Evaluation by particle size distribution through the profile was complicated by the presence of a silty surficial deposit overlying a texturally heterogenous calcareous till of the study area. Direct observation, in thin section, of apparent illuvial clay revealed its abundance to be relatively low and its distribution to be unlike that found within illuvial horizons of Gray Luvisols elsewhere in Canada. Both pedogenesis and nature of parent material influenced the mineralogy of the clay-sized fraction. Comparison of the clay suites of the argillic-like horizons with those of the significantly different overlying material provided further evidence that contemporary lessivage was largely inconsequential. A combination of processes is hypothesized to have contributed to the anomalous morphologies of these soils. These include the dissolution and removal of primary carbonate from the solum, geomorphic influences and the in situ reorganization of plasmic material within the till. </jats:p> |
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| Umfang: | 337-350 |
| ISSN: |
1918-1841
0008-4271 |
| DOI: | 10.4141/cjss81-038 |