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A Bf horizon contains 0.5-5% organic C, and a Bhf horizon contains more than 5% organic C. Any B horizon that satisfies the specified morphological and chemical requirements is a podzolic B horizon. In the following cases, the color criteria of a podzolic B horizon are waived for the following: Ap horizons that meet the chemical limits; and B subhorizons that meet the chemical limits specified.
- Chapter 9
Chapter 9: Organic Order. Previous | Table of Contents |...
- Humic Podzol
These soils have the general properties specified for the...
- Humo-Ferric Podzol
They do not have an ortstein horizon but may have a duric...
- Third Edition
The Canadian Soil Information Service is an authoritative...
- Chapter 9
May 1, 2011 · The present summary identified elevation as a key factor distinguishing between soils with ortstein and geographically related soils without ortstein; in the USA soils with some form of ortstein often occur below 200 m elevation . About a third of the soils occurred in the Great Lakes region on sites with a seasonally high water table, primarily in the spring following melting of a thick snowpack.
- James Bockheim
- 19
- 2011
- 01 May 2011
Jan 1, 2014 · Properties: Ortstein is 25 mm or more thick and 50% or more (by volume) cemented (Soil Survey Staff, 1999). As a rule, the horizon has sandy grain-size distribution. Compared to the adjacent non-cemented horizons, ortstein usually has a higher bulk density (Lambert and Hole, 1971; Wang et al., 1978). It is also stronger; the penetration ...
- Jacek Chodorowski
- jchodor@poczta.umcs.lublin.pl
May 1, 2011 · Well-developed ortstein averages 41 cm in thickness and is moderately cemented, dense (bulk density 1.60 g cm −3), massive, very firm to extremely firm, predominantly in sandy particle-size classes, and may contain living roots. Because soils with and without ortstein often occur on the same landforms, soils containing >5% ortstein (89 series ...
- James Bockheim
- 2011
May 1, 2011 · Soils with ortstein cover 2.2 million ha in the USA, 87% of which occur in Michigan and Florida. Of the 650 soils in the National Soil Survey database classified as Spodosols, 47 contain ...
Sanborn, P., Lamontagne, L. and Hendershot, W. 2011. Podzolic soils of Canada : Genesis, distribution, and classification. Can. J. Soil Sci. 91: 843–880. Podzolic soils occupy 14.3% of the Canadian landmass, and occur in two widely separated areas, eastern Canada (northern Ontario, Quebec, Maritimes) and British Columbia, usually under coniferous forest and on non-calcareous parent materials ...
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Where do Ortstein soils come from?
Does Ortstein have a aquic soil moisture regime?
Where does Ortstein grow?
How does soil moisture affect Ortstein formation?
How many Spodosols contain Ortstein?
Does Ortstein affect spodic horizon?
Soils with ortstein cover 2.2 million ha in the USA, 87% of which occur in Michigan and Florida. Of the 650 soils in the National Soil Survey database classifi ed as Spodosols, 47 contain suffi cient ortstein to be classifi ed in the ortstein rupture-resistance class; another 42 soils contain materials that are <50% cemented and, therefore, not
