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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
Hydric layers in Organic soils are a kind of W layer as is segregated ice formation in Cryosolic soils. Lowercase suffixes. b - A buried soil horizon. c - A cemented (irreversible) pedogenic horizon. Ortstein, placic and duric horizons of Podzolic soils, and a layer cemented by CaCO 3 are examples.
These soils have the general properties specified for the Podzolic order and the Humic Podzol great group. They are identified by the following properties: They have a Bh horizon at least 10 cm thick. They do not have an ortstein horizon at least 3 cm thick, a placic horizon, a duric horizon, or a fragipan.
Jun 28, 2008 · Because soils with and without ortstein oft en occur on the same landforms, soils containing >5% ortstein (89 series) were compared with geographically associated and competing soil series (59 ...
May 1, 2011 · Whereas soils with ≥50% ortstein commonly had a massive structure (64% of soil series), soils with <50% ortstein and those lacking ortstein often had a subangular blocky structure (74 and 54%, respectively; Table 2). Soils with ≥50% ortstein generally had a hard to extremely hard dry consistence (57%), whereas soils with <50% ortstein and those without ortstein had a consistence of ...
- James Bockheim
- 19
- 2011
- 01 May 2011
May 1, 2011 · The lower depth boundary and thickness of the spodic horizon were significantly greater (p = 0.001) in soils with ortstein than in those without ortstein. The data suggest that soil water transporting cementing materials (Fe, Al, Si, and dissolved organic C) moves more slowly in landscape positions where ortstein eventually forms than in those where it is absent.
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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 sufficient ortstein to be classified in the ortstein rupture-resistance class; another 42 soils contain materials that are 5% ortstein (89 series) were compared with geographically associated and competing ...
