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1. www.nrcs.usda.gov › sites › defaultA Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov › sites › default

   Examples include artifacts, buried soil, artificial drainage, component, correlation, horizon, and normal year. This glossary also contains a selection of taxonomic class terms from great groups, subgroups, or families. Examples include Arenic, Leptic, Ombroaquic, Pachic, and Rhodic.

2. link.springer.com › referenceworkentry › 10Ortstein, Physical Properties | SpringerLink

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   Jan 1, 2014 · Ortstein (German: ort-place, stein-stone) is defined by Soil Survey Staff as all or part of the spodic horizon, when moist, it is at least weakly cemented into a massive horizon that is present in more than half of each pedon.

   • Author: Jacek Chodorowski

   • Email: jchodor@poczta.umcs.lublin.pl

3. acsess.onlinelibrary.wiley.com › doi › fullDistribution and Genesis of Ortstein and Placic Horizons in ...

   acsess.onlinelibrary.wiley.com › doi › full

   May 1, 2011 · According to Soil Taxonomy (ST), ortstein consists of spodic materials and occurs in a layer that is ≥25 mm thick and ≥50% cemented (Fig. 1A-1C; 34). In ST, ortstein is both a diagnostic subsurface horizon and the only rupture-resistance class recognized in the system.

4. link.springer.com › chapter › 10Ortstein and Placic Horizons - SpringerLink

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   Jan 1, 2014 · According to Soil Taxonomy (ST), ortstein consists of spodic materials and occurs in a layer that is ≥25 mm thick and ≥50 % cemented (Soil Survey Staff 2010) (Fig. 18.1). In ST, ortstein is both a diagnostic subsurface horizon and the only rupture-resistance class recognized in the system.

   • Author: James G. Bockheim

   • Publish Year: 2014

5. www.agronomy.lsu.edu › courses › agro2051Soil Classification of the great group and soils that are i

   www.agronomy.lsu.edu › courses › agro2051

   A classification system is needed to organize knowledge on the thousands of natural bodies known as soils. Pedon is the smallest unit of soil that embodies the essential characteristics of a soil. Polypedon is a laterally contiguous group of similar pedons. It is a soil individual.

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6. sis.agr.gc.ca › cansis › taxaThe Canadian System of Soil Classification, 3rd edition

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   Rationale of Soil Taxonomy in Canada. The nature of soil; Nature and purpose of soil classification; Misconceptions about soil taxonomy; Attributes of the Canadian system; Bases of criteria for defining taxa at various categorical levels; Relationship of taxonomic classes to environments; Relationship of the Canadian system to other systems of ...

7. People also ask

   What does Orstein mean in soil taxonomy?

   • Orstein is defined in Soil Taxonomy as being at least 25 mm thick and being cemented in at least 50 percent of its volume (thus root restrictive). It is a diagnostic soil characteristic used to define a family rupture-resistance class recognized for some Spodosols.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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   How thick is Ortstein?

   • According to Soil Taxonomy (ST), ortstein consists of spodic materials and occurs in a layer that is ≥25 mm thick and ≥50 % cemented (Soil Survey Staff 2010) (Fig. 18.1). In ST, ortstein is both a diagnostic subsurface horizon and the only rupture-resistance class recognized in the system.

   Ortstein and Placic Horizons - SpringerLink

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   How thick is a soil with 50 % Ortstein?

   • The ortstein horizon averaged 41 cm and 32 cm in thickness for soils with ≥50 % and <50 % ortstein, respectively. The degree and proportion of cementation were significantly greater in soils with ≥50 % ortstein than in those with <50 % ortstein (Table 18.1).

   Ortstein and Placic Horizons - SpringerLink

   link.springer.com/chapter/10.1007/978-3-319-06668-4_18

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   What is a horizon Ortstein?

   • A huge accumulation of the complexes leads to the formation of coherent aggregates, and even of continuous, highly cemented layers referred to as ortstein. 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.

   Ortstein, Physical Properties | SpringerLink

   link.springer.com/referenceworkentry/10.1007/978-90-481-3585-1_252

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   What does Ortstein mean?

   • Part of the book series: Encyclopedia of Earth Sciences Series ( (EESS)) Ortstein (German: ort -place, stein -stone) is defined by Soil Survey Staff (1992) as all or part of the spodic horizon, when moist, it is at least weakly cemented into a massive horizon that is present in more than half of each pedon.

   Ortstein, Physical Properties | SpringerLink

   link.springer.com/referenceworkentry/10.1007/978-90-481-3585-1_252

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   How does Ortstein form?

   • These soils warrant further investigation as they do not reflect the drainage conditions for ortstein formation. The NRCS data suggest that ortstein begins to form in discrete areas of the spodic horizon as nodules, “bodies,” or “pockets” and that eventually they form isolated “chunks” of ortstein.

   Ortstein and Placic Horizons - SpringerLink

   link.springer.com/chapter/10.1007/978-3-319-06668-4_18

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8. www.researchgate.net › publication › 275730470Distribution and Genesis of Ortstein and Placic Horizons in ...

   www.researchgate.net › publication › 275730470

   May 1, 2011 · According to Soil Taxonomy (ST), ortstein consists of spodic materials and occurs in a layer that is ≥25 mm thick and ≥50 % cemented (Soil Survey Staff 2010) (Fig. 18.1).