Changes in the acid-base properties of cultivated light-textured soddy-podzolic soils in the course of postagrogenic transformation

Litvinovich, A. V.; Drichko, V. F.; Pavlova, Olga; Чернов, Д. В.; Shabanov, M. V.

doi:10.1134/s1064229309060076

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…After a fallow period of more than 20 years, soils show morphological changes in the arable horizon. This was especially evident in the 35-year-old site, in which the loose sod layer was clearly visible on the soil surface (Litvinovich et al 2009). A lack of macroaggregates with a size > 10 mm and a high level (27%) of aggregates < 0.25 mm compared to the other sites was observed in the first layer (0-12 cm) of the 35-year-old site.…”

Section: Resultsmentioning

confidence: 77%

Impact of different fallow durations on soil aggregate structure and humus status parameters

Бурдуковский¹,

Kiseleva²,

Perepelkina³

et al. 2020

Soil & Water Res.

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Soil aggregate structure and soil organic matter are closely interrelated and commonly considered as key indicators of soil quality. The aim of this study was to evaluate the effects of different fallow durations on indices of soil structure and humus status indicators. Studies were conducted on abandoned agricultural fields (15, 20 and, 35 years after abandonment). As a reference site, we used a cultivated field in the area. The experimental soil fields are classified as Gleyic Cambisols. Soil macroaggregates were separated with the sieve (dry sieve) to seven aggregate size fractions, i.e.> 10, 10–5, 5–2, 2–1, 1–0.5, 0.5–0.25 and < 0.25 mm. The humus status parameters of soils included the following indicators: soil organic carbon (Corg), humus reserves (QH), the degree of humification of organic matter (SOMdh), fractions of humic acids (HA) (free and bound with monovalent cations and Al2O3, Fe2O3, bound with Са2+ which forms humates, bound with clay minerals), fulvic acids (FA) (free aggressive) and ratio of HA to FA (CHA : CFA). After a fallow period of more than 20 years on the surface formation of a sod layer. A long-term fallow period had an impact on the mean weight diameter of the aggregates (MWD) and agronomically valuable aggregates (AVA). Fallow soils have a significantly better structure than soils under a cultivated field. Long-term cultivation leads to the deterioration of soil structure and the formation of large aggregates (>10 mm). The Corg content remains at the level of the background content when the soils are left fallow for less than 15 years and increases over time. The Corg in the upper 0–20 cm soil layer has been shown to increase from 3.55 to 8.74% on arable land that has been fallow for 35 years and has been largely associated with significant accumulation of organic matter within the plant root mass. Mature sites are characterized by an increase of fulvic acids in the humus composition in comparison with their arable analogues. The abandonment of soil agricultural use and the cessation of mechanical tillage results in the restoration of the natural structure of soils and the improvement of their agrophysical properties. Such studies have not been previously conducted in the Primorsky region of the Russian Far East.

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Section: Resultsmentioning

confidence: 77%

Impact of different fallow durations on soil aggregate structure and humus status parameters

Бурдуковский¹,

Kiseleva²,

Perepelkina³

et al. 2020

Soil & Water Res.

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“…Also, the hypotheses that BD will decrease after afforestation is not supported by our results (recovered AL), and contradicts the conclusions from other studies [38,39], but agrees with the work of Vopravil et al [40] which found that previously arable horizon characteristics can persist for a long time. There is also probability that in this study, the abandonment age is too short to see the gradual restoration of BD after afforestation which is shown in [41]. The restoration time of BD in the southern Taiga region to initial values lasts about 200 years.…”

Section: Discussionmentioning

confidence: 63%

Changes of Soil C Stock under Establishment and Abandonment of Arable Lands in Permafrost Area—Central Yakutia

et al. 2018

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Central Yakutia is in one of the most northern agricultural centers of the world. In this territory a notable area of arable land was made by removing the boreal Taiga with the primary purpose of crop cultivation. Such a method of cultivation significantly changes soil total carbon (STC, soil organic carbon + soil carbonate carbon) balance, because of the destroyed upper humus horizon. Soil organic carbon (SOC) of cultivated arable lands is almost a half of that in forest. In abandoned arable lands with grass vegetation, the recovery of SOC has increased to 30% in comparison with cultivated arable lands. On arable lands recovering with new growth of trees, the SOC is related to the abandonment period. Soil carbonates carbon (SCC) content was significantly lower than SOC and showed significant difference among abandoned and other types of arable lands. Objectives of this study are to identify how STC stocks change in response to conversion of the forests to agricultural land and to analyze the arable land system's recovery process after abandonment. Furthermore, after transformation of forest to arable land, a significant decrease of STC was observed, primarily due to mechanical loss after plant residue removal. It was also identified that the restoration and self-recovery of STC in abandoned arable lands of Central Yakutia continuously and slightly increase. Grass vegetation regenerates STC for 20 years. While the difference of average STC of forests and cultivated arable lands reached 41%, a new growth of forest on some abandoned arable land follows the tendency of STC decrease due to a low productivity level and suppressing effect on grass vegetation.

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Changes in the Plant Cover and Biological Properties of Chernozems in the Postagrogenic Period

et al. 2020

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Changes in the acid-base properties of cultivated light-textured soddy-podzolic soils in the course of postagrogenic transformation

Cited by 7 publications

References 1 publication

Impact of different fallow durations on soil aggregate structure and humus status parameters

Impact of different fallow durations on soil aggregate structure and humus status parameters

Changes of Soil C Stock under Establishment and Abandonment of Arable Lands in Permafrost Area—Central Yakutia

Changes in the Plant Cover and Biological Properties of Chernozems in the Postagrogenic Period

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