Summary of Changes in the Second Edition
The main changes in the Second Edition accommodate the new knowledge and understanding of the nature, distribution and refined testing for soils containing sulfidic materials (see below). Included in these changes is the introduction of Subtidal and Subaqueous soils. Other minor changes include converting the terminology of Reticulite to Reticulate, adding various Ferric and Manganic Subgroups to the Vertosols and a modification to the A horizon Family criteria for Hydrosols.
The main changes to soils with sulfidic and sulfuric materials are summarized below:
- The soil orders affected are Hydrosols, Organosols, Podosols, Rudosols and Vertosols.
- The inclusion of Subtidal and Subaqueous suborders into the Hydrosol soil order.
- The redefining of sulfidic materials into three types: Hypersulfidic, Hyposulfidic and Monosulfidic. These materials may occur in combination in the same profile. This has led to changes in the keys of the affected soil orders.
- The defining and addition of peat fire induced Fusic materials to the key of Anthroposols, Hydrosols and Organosols.
- The addition of Aquic-Sulfuric and Aquic Sulfidic suborders to the Podosols.