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Open AccessArticle

The Effect of Grazing on the Temperature Regime of the Alas Soils of Central Yakutia

Scientific Research Institute of Applied Ecology of the North, M.K. Ammosov North-Eastern Federal University, 43 Lenin Prospekt, 677980 Yakutsk, Russia
Author to whom correspondence should be addressed.
Land 2020, 9(10), 365;
Received: 7 September 2020 / Revised: 21 September 2020 / Accepted: 22 September 2020 / Published: 1 October 2020
(This article belongs to the Special Issue Permafrost Landscape)
There are numerous studies on the effect of grazing on the physical and chemical parameters of soils. However, the impact of grazing on the temperature regime of the alas soils in Central Yakutia is still poorly understood. This paper presents the results of long-term observations of the state of the soil-and-plant cover of thermokarst basins—i.e., alases—located in the Lena-Amga interfluve and actively used as pastureland. Observations of the process of the self-restoration of grass cover and changes in the temperature regime of alas soils were carried out on different variants (with isolation from grazing and without isolation). A significant increase in the average height of the grass stand and its foliage projective cover was observed with a gradual reduction in the number of species when isolated from grazing. Changes in the structure of the alas vegetation cover influence the microclimate of the soil. As a result of livestock grazing, the mean annual soil temperature rises and the amount and depth of the penetration of active temperatures increase. The most severe changes in the temperature regime occur in years with an abnormally high cover of snow. The soil warming observed during grazing undoubtedly has a favorable effect on soil organisms. However, in conditions of climate warming, grazing, especially overgrazing, can disrupt the permafrost regime and thereby provoke or intensify thermokarst phenomena. View Full-Text
Keywords: soil temperature; climate change; alas soils; grazing soil temperature; climate change; alas soils; grazing
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MDPI and ACS Style

Makarov, V.; Savvinov, G.; Gavrilieva, L.; Gololobova, A. The Effect of Grazing on the Temperature Regime of the Alas Soils of Central Yakutia. Land 2020, 9, 365.

AMA Style

Makarov V, Savvinov G, Gavrilieva L, Gololobova A. The Effect of Grazing on the Temperature Regime of the Alas Soils of Central Yakutia. Land. 2020; 9(10):365.

Chicago/Turabian Style

Makarov, Victor; Savvinov, Grigory; Gavrilieva, Lyudmila; Gololobova, Anna. 2020. "The Effect of Grazing on the Temperature Regime of the Alas Soils of Central Yakutia" Land 9, no. 10: 365.

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