Factors for anthropogenic transformation of chernozems

Ivanov, A. L.; Lebedeva, I. I.; Гребенников, А. М.

doi:10.19047/0136-1694-2013-72-26-46

Cited by 5 publications

(2 citation statements)

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“…Despite the long list of experimental works, the obtained contradictory conclusions hamper the development of theory of agrogenic evolution of Chernozems. This theory is far from complete, is composed of individual fragments, and only partially reflects the general trends that need to be verified, and does not cover all the diversity of soil changes occurring under cultivation (Ivanov et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Evolution of Chernozems in the southern forest-steppe of the Central Russian upland under long-term cultivation examined in the agro-chronosequences

Khokhlova

Chendev²,

Myakshina

et al. 2015

Quaternary International

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Section: Introductionmentioning

confidence: 99%

Evolution of Chernozems in the southern forest-steppe of the Central Russian upland under long-term cultivation examined in the agro-chronosequences

Khokhlova

Chendev²,

Myakshina

et al. 2015

Quaternary International

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“…Chernozems are the most fertile, and therefore the most plowed soils in the East European Plain (Ivanov et al., 2013). In Chernozems, the pedogenic carbonates determine soil classification position along with the humus state, thus the carbonate stocks, forms and dynamics is necessary to understand their role in the C cycle and soil evolution.…”

Section: Introductionmentioning

confidence: 99%

Stable and radioactive carbon isotopes as indicators of restructuring the pedogenic carbonates in Chernozems during their transition from arable to abandoned state (Cis‐Azov steppe, Russia)

Khokhlova

Kuznetsova

2022

J. Plant Nutr. Soil Sci.

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Background Pedogenic carbonates are a key component in the steppe soil system that determined soil‐forming processes, classification position, and also responsible for a carbon cycle. Aim Investigating the processes of carbonate status transformation in Chernozems transiting from arable to self‐restoration state. Methods The consequences of land‐use change from arable to self‐restoration abandoned soils for carbonate status have been studied in the chronosequence of Chernozems within the Cis‐Azov steppe, Russia, based on complex examination with the focus on stable and radioactive C isotopes in carbonates. Results Pedogenic carbonate transformation starts immediately after land‐use change with altering of hydrothermal regime of soils and establishing of a permanent vegetation cover on the surface of abandoned soils when plowing stopped. The main changes are: (1) accumulation of carbonates moves deeper in the profile, (2) decreasing of carbonate C stock, (3) the soft carbonate concretions in the carbonate‐accumulative horizons Bk of aged abandoned soils gain vague diffuse boundaries with the soil mass in contrast to clear boundaries of those concretions in the youngest abandoned and arable soils, (4) the soft concretions with hard core completely disappear from the lowermost part of profile of aged abandoned soils, (5) decrease in the age of carbonates (14C values), (6) and the δ13С values in carbonates increase (become less negative) with time after stop plowing. In approximately 30 years of abandonment, Chernozems transformed to a “new” quasi‐stable state of carbonate profile. The movement of soil solutions in abandoned soils with permanent vegetation occurs under transpiration influence that prevailed over physical evaporation, and that results in a change of the carbon isotopic composition in carbonates. After the soil has been abandoned, carbonates are gradually displaced from the soil horizons of the former arable soils, being simultaneously renewed due to active recrystallization under the influence of plant roots and mesofauna. Conclusions In the Chernozems of aged abandoned soils, both radioactive and stable C isotopes in carbonates show renewal as compared with the arable soils, mostly in the nonsegregated carbonates. Thus, the main pathway of the carbonate transformation is through the intrapedal and intercracks soil mass where the nonsegregated carbonates predominate.

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Evolution of scientific views at factors of chernozem soil formation and development

Левыкин

Grosheva

Казачков

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Based on the comparative-historical method, we considered scientific theories about factors of chernozem formation (soil-forming material, relief, climate, vegetation and animal life, time, human) in the paper, their interrelated impact on the formation and evolution of steppe soils reflected in works of F.I. Ruprecht, V.V. Dokuchaev, P.S. Kossovich, S.S. Nestruev, P.A. Kostychev, V.R. Williams, H. Jenny, S.A. Waksman, and other researchers. Taking into account ecosystem significance in the functioning of the steppe landscapes and the high degree of agricultural development of chernozem soils, intensification of degraded processes, a necessity of understanding of the real influence of natural and anthropogenic factors on chernozem evolution is urgent as it serves a basis for the design of ways of steppe soils restoration. Therefore, in the scientific community, an interest was arisen to solve Dokuchaev and Jenny’s equations identifying the functional relation between earth and soil formation factors. At the degree of accumulation of informational data on chernozem changeability in time and space, it has emerged conditions to develop approaches contradicting soil degradation processes.

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Factors for anthropogenic transformation of chernozems

Cited by 5 publications

References 0 publications

Evolution of Chernozems in the southern forest-steppe of the Central Russian upland under long-term cultivation examined in the agro-chronosequences

Evolution of Chernozems in the southern forest-steppe of the Central Russian upland under long-term cultivation examined in the agro-chronosequences

Stable and radioactive carbon isotopes as indicators of restructuring the pedogenic carbonates in Chernozems during their transition from arable to abandoned state (Cis‐Azov steppe, Russia)

Evolution of scientific views at factors of chernozem soil formation and development

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