Fodsol soils constitute a large proportion of the soils of Eastern Canada. They are developed under woodland in cool humid conditions where rainfall exceeds evaporation. The profile from the surface downward consists essentially of an organic layer, a leached layer, and a layer of accumulation just above the parent rock. Thus the simplest podso1 profile consists of three horizons, namely: Ao ‘ the raw humus layer; A2, the leached siliceous layer; B, the layer of accumulation of sesquioxides. The Ao horizon of acid peaty organic matter is considered essential to the development of a true podsol. G.W. Robinson makes the following statement: “.... It would appear that an acid reaction is not in itself sufficient to cause podsolization. This may be readily shown in the laboratory by allowing 0.1 N solutions of hydrochloric acid and oxalic acid, respectively, to percolate through ferruginous sand. Alghough the pH of the hydrochloric acid is lower than that of the oxalic acid, the solvent action of the latter acid is considerably greater and quickly leads to a bleaching by removal of ferric oxide.....” R.T. Jones and J.S. Willcox have demonstrated in the laboratory that oxalic and tartaric acids will bring sesquioxides, from the upper part of the profile, into solution and deposit them lower down.[...]
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.123798 |
| Date | January 1949 |
| Creators | Boswall, Graeme Wyatt. |
| Contributors | DeLong, W. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science. (Department of Agricultural Chemistry.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000591907, Theses scanned by McGill Library. |
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