Study of acid-alkaline conditions of different-age arable soils of landscape catens of Central Forest-Steppe

Author:

Kovalyova E. V.1,Vagurin I. Yu.2,Akinchin A. V.1,Kuzmina O. S.1

Affiliation:

1. Belgorod State Agrarian University named after V. Ya. Gorin

2. Belgorod State National Research University

Abstract

Fertility of soils is largely determined by their physical and chemical properties. Response of soil environment is a mobile indicator of soil fertility. Direction and intensity of almost all soil processes that provide nitrogen, phosphorus and potassi- um regimes of soils, as well as availability of macro- and microelements for plants, depend on it. The paper presents the result of a field study of acid-alkaline conditions of profiles of black soil of typical and leached different terms of agricultural use of soil cat- ens of the meadow-steppe section of the Belgorod region in 2019. The research object was different-age arable areas with an age of agricultural development of 140 and 240 years, respectively. The steepness of surface in areas corresponding to the meadow-steppe zonal landscape of the forest-steppe did not exceed 4-6 °. As a result of field studies, 32 incisions were studied in the mead- ow-steppe section (6 incisions on background catens and 12 incisions on open catens). Each incision was provided with layered values of morphometric indicators of soil horizons. For background steppe soils, shade slopes are characterized by more alkaline conditions, in comparison with southern slopes. For 140-year-old arable land, the situation is opposite: shadow slopes have a more acidic reaction of the medium, in comparison with insoluble ones; for 240-year-old arable land, alkaline-acid conditions on the slopes of opposite expositions did not differ significantly. In the first 140 years of plowing, acidification of the soil profile occurs; the difference in the pH value between the background and arable land values of 140 years of age on the slope of the northern ex- position reaches 1.6 on the surface, gradually decreasing to 0.2 at depth. Further plowing leads to alkalization of the soil profile by 0.6-0.9 pH units. The research results can be used in development of agricultural systems in crop industries.

Publisher

Publishing House Belorusskaya Nauka

Subject

General Medicine

Reference19 articles.

1. Mordkovich V.G. Steppe ecosystems. 2nd ed. Novosibirsk, Geo Publ., 2014. 170 p. (in Russian).

2. Karavaeva N.A. Agrogenic soils: environmental conditions, properties, and processes. Pochvovedenie = Eurasian Soil Science, 2005, no. 12, pp. 1518-1529 (in Russian)

3. Ramenskii L.G. Introduction to a comprehensive soil and geobotanical land survey. Moscow, Sel’khozgiz Publ., 1938. 620 p. (in Russian).

4. Milne G. A provisional soil map of East Africa (Kenya, Uganda, Tanganyika, and Zanzibar), with explanatory memoir. London, Crown Agents for the Colonies, 1936. 34 p.

5. Polynov B. Weathering. Composition of continental deposits. Proceedings of the Geological Association. Iss. 4. Moscow, Publishing House of the USSR Academy of Sciences, 1935. 27 p. (in Russian).

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3