Diagnostic horizons in the Russian soil classification system

Lebedeva, I. I.; Герасимова, М. И.

doi:10.1134/s1064229312090086

Cited by 15 publications

(3 citation statements)

References 5 publications

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“…Diagnostic horizons are the primary building blocks in modern, global soil taxonomic systems and reflect key soil-forming processes (Lebedeva et al, 1999). In many cases diagnostic horizons result from field and laboratory characterization of hundreds of pedons and considerable discussion at international workshops.…”

Section: Introductionmentioning

confidence: 99%

Revisiting the definitions of the sombric horizon in soil taxonomy and world reference base for soil resources

Bockheim

2012

Geoderma

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Section: Introductionmentioning

confidence: 99%

Revisiting the definitions of the sombric horizon in soil taxonomy and world reference base for soil resources

Bockheim

2012

Geoderma

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“…These new approaches have strongly influenced the recent development of national classification systems, including such large classifications as the Russian, Chinese, Brazilian, Canadian and others (Agriculture Canada, 1998;EMBRAPA, 2006;Lebedeva and Gerasimova, 2012;Shi et al, 2006). Currently, the most influential international systems are Soil Taxonomy and the WRB.…”

Section: Classification Systemsmentioning

confidence: 99%

Soil mapping, classification, and pedologic modeling: History and future directions

et al. 2016

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“…Taxonomic soil classification systems are based on morphological properties and recognition of key processes responsible for soil genesis (Lebedeva et al, 1999;Bockheim, 2012). Our improved understanding of the formation of the sombric-like horizons from Southern Brazil (Caner et al, 2003;Chiapini et al, 2018), inhibits the correct classification of these soils, in particular, in the Brazilian Soil Classification System (Embrapa, 2018).…”

Section: Introductionmentioning

confidence: 99%

Sombric-like horizon and xanthization in polychrome subtropical soils from Southern Brazil: implications for soil classification

Chiapini

Oliveira

Schellekens

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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The occurrence of dark subsurface horizons rich in organic matter (OM) associated with polychrome in the B horizon (yellowish over reddish hue) is common in soils from Southern Brazil. The formation of these horizons and the combination with such morphological attributes has not been properly documented, and neither has the cause effect relationship. Four soil profiles with such sombric-like horizons with a yellowish color at the upper part of the B horizon over red subsoil were studied in Southern Brazil. Results from micromorphology, extractable sesquioxide minerals, clay mineralogy and isomorphic substitution of Fe by Al in iron minerals showed that melanization, xanthization, bioturbation, moderate shrinking/swelling and moderate ferralitization were the most evident pedogenetic processes in role. Xanthization is closely related to the sombric-like horizon formation. In the studied area the findings demonstrated that no clay and OM illuviation had taken place. Therefore, the classification of these soils was revisited, so as to take into account the processes that underlie their genesis with emphasis on xanthization, clay illuviation and soil aggregation. The results suggest that the sombric horizon may need redefinition, unless profiles can be found in which illuviation of clay and/or OM can be proven.

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Diagnostic horizons in the Russian soil classification system

Cited by 15 publications

References 5 publications

Revisiting the definitions of the sombric horizon in soil taxonomy and world reference base for soil resources

Revisiting the definitions of the sombric horizon in soil taxonomy and world reference base for soil resources

Soil mapping, classification, and pedologic modeling: History and future directions

Sombric-like horizon and xanthization in polychrome subtropical soils from Southern Brazil: implications for soil classification

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