The Origin and Geography of Brown Forest Soils

Evgeny Abakumov (), Timur Nizamutdinov and Igor Kostenko
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Evgeny Abakumov: Department of Applied Ecology, Faculty of Biology, St. Petersburg State University, 7/9 Universitetskaya Nab., 199034 St. Petersburg, Russia
Timur Nizamutdinov: Department of Applied Ecology, Faculty of Biology, St. Petersburg State University, 7/9 Universitetskaya Nab., 199034 St. Petersburg, Russia
Igor Kostenko: Independent Researcher, 26 Nikitsky Botanical Gardens, 298648 Yalta, Russia

Land, 2024, vol. 13, issue 11, 1-10

Abstract: Brown soils, Brown forest soils, Burozems or Cambisols have been studied for more than 100 years, and to this day, their nature, origin and process organization remain controversial. In addition, issues of their geography are quite controversial, especially in such a large country as Russia. A brief review of the literature on the morphological diversity features of the genesis and origin of brown soils in the various geographical locations of Eurasia is given. It was shown that the genesis of brown soils is not as closely related to the type of forest vegetation as previously thought, although, at the same time, the vast majority of brown soils are forest soils. Depending on the geographic situation and local climatic and geogenic conditions, Brown forest soils have related subtypes among adjacent soil types in different natural zones. Thus, in the polar zone, they are close to Entic Podzols, in the subtropics to Cinamonic soil, and in the forest-steppe, they replace zonal Retisols in positions with a relatively less contrasting and even climate. Being to a certain extent intrazonal soils, brown soils are combined with other more intrazonal soils—Rendzinas—and form the so-called Burozem-Rendzinas on uplands, composed of carbonate rocks in various natural zones. The article is illustrated with original photographs of Brown forest soils from various natural zones, taken by the author during numerous expeditions. It has been established that Burozems combine the characteristics of intrazonal soil, which is inherent in all natural zones, and have elements of zonal soils, as well as adjacent intrazonal soils in invariant combinations of soil-forming factors. From this, two conclusions can follow about their further classification fate: a more thorough justification for an independent soil type or a classification of structural metamorphism and in situ transformation of minerals among various existing zonal soil types.

Keywords: Brown forests soils; Cambisols; Burozems; soil geography; soil taxonomy; geogenic conditions; pedogenic conditions; bioclimatic factors (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
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