Dynamics of the microaggregate composition of chernozem in relation to changes in the content of organic matter
- 作者: Kryshchenko V.1, Zamulina I.1, Rybyanets T.1, Kravtsova N.1, Biryukova O.1, Golozubov O.1
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隶属关系:
- Academy of Biology and Biotechnology
- 期: 卷 49, 编号 6 (2016)
- 页面: 640-651
- 栏目: Soil Physics
- URL: https://journals.rcsi.science/1064-2293/article/view/223404
- DOI: https://doi.org/10.1134/S1064229316060041
- ID: 223404
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详细
Monitoring of soil dispersivity and humus state has been performed in the stationary profile of ordinary chernozem in the Botanic Garden of the Southern Federal University in 2009–2014. The contents of physical clay and sand are almost stable in time, which indicates a quasi-static (climax) equilibrium in the soil. Another (reversible dynamic) process occurs simultaneously: seasonal and annual variation in the mass fractions of clay and silt in physical clay. Variations of humus content in the whole soil and in its physical clay are also observed on the background of seasonal changes in precipitation and temperature. A procedure has been developed for the analysis of the polydisperse soil system with consideration for the quasi-static and dynamic equilibriums. A two-vector coordinate system has been introduced, which consists of scales for changes in the contents of physical clay and physical sand in 100 g of soil and changes in the fractions of clay and silt in 100 g of physical clay. Co-measurements of two dispersivity series of soil samples—actual dynamic and calculated under quasi-static equilibrium (ideal)—have been performed. Dynamic equilibrium coefficients, which cumulatively reflect the varying proportions of physical clay and physical sand in the soil and the mass fractions of clay and silt in physical clay, have been calculated.
作者简介
V. Kryshchenko
Academy of Biology and Biotechnology
Email: kravcova_n@mail.ru
俄罗斯联邦, pr. Stachki 194/1, Rostov-on-Don, 344090
I. Zamulina
Academy of Biology and Biotechnology
Email: kravcova_n@mail.ru
俄罗斯联邦, pr. Stachki 194/1, Rostov-on-Don, 344090
T. Rybyanets
Academy of Biology and Biotechnology
Email: kravcova_n@mail.ru
俄罗斯联邦, pr. Stachki 194/1, Rostov-on-Don, 344090
N. Kravtsova
Academy of Biology and Biotechnology
编辑信件的主要联系方式.
Email: kravcova_n@mail.ru
俄罗斯联邦, pr. Stachki 194/1, Rostov-on-Don, 344090
O. Biryukova
Academy of Biology and Biotechnology
Email: kravcova_n@mail.ru
俄罗斯联邦, pr. Stachki 194/1, Rostov-on-Don, 344090
O. Golozubov
Academy of Biology and Biotechnology
Email: kravcova_n@mail.ru
俄罗斯联邦, pr. Stachki 194/1, Rostov-on-Don, 344090