MICROAGGREGATE COMPOSITION OF ALLUVIAL SOILS OF FLООDPLAIN OF WESTERN BUG RIVER

Yurii Nakonechnіу

Abstract


The study of the microaggregative composition of soils of the fl oodplain of the Western Bug River has been carried out. The microstructure of these soils is characterized by considerable strength, especially in the transition horizons. In the alluvial sod short-profi le soils, the fraction of fi ne sand prevails. The microaggregate fractions dominant in alluvial turf typical soils are micro aggregates in the size of 0,05-0,01 mm. Alluvial meadow soils are characterized by the lack of a clear distribution of microaggregates by profi le. In the humus horizon of these soils dominated particles in the size of 0,05-0,01 mm. In alluvial meadow and wetland soils, there is an even distribution of the profi le of microaggregates of all fractions. For the in-depth assessment of the results of the microaggregate analysis, a number of indicators have been calculated that assess the potential soil potential for microstructure formation: the Kachinsky dispersion factor (K, %), the Fageler structural factor (Kc, %), the degree of aggregation by Baver and Roathers (Ka, %), the microstructure rate for Dimo (Kd, %) and the number of aggregation for Pustovoitov (Kp, %). Consequently, the study of the microorganic composition of alluvial soils in the fl oodplain of the Western Bug River has shown that they are characterized by an extremely stable microstructure of the soil, high water resistance of microaggregates. The highest values of these indicators are alluvial turf and meadow soils, and somewhat lower – alluvial turf short-profi le soils.


Keywords


microaggregate composition, alluvial soils, stability of microstructure.

References


Vadiunyna, A. F., & Korchahyna, Z. A. (1986). Methods of study in the physical properties of soils. Moscow: Agropromizdat, 416 pp. (in Russian).

Voronyn, A. D. (1984). Structural-functional geophysics of soils. Moscow: Izv. Mosk. State un. 214 pp. (in Russian).

Dymo, V. N. (1958). Agrophysical characteristics of soddypodzolic soils of different mechanical composition. Fertility of soddypodzolic soils. Moscow, 19–30 (in Russian).

Kornieienko, S. V. (2016). Investigation of the composition of physical and physical and chemical properties of soils. Kyiv, 14–15 pp. (in Ukrainian).

Medvedev, V. V. (2008). Structure of the soil (methods, genesis, classifi cation, evolution, geography, monitoring). Kharkiv: 13 printing house, 406 pp. (in Russian).

Nakonechnyi, Iu. I., & Poznyak, S. P. (2011). Soils of the fl oodplain of the Western Bug River. Lviv: Lviv. un. 220 pp. (in Ukrainian).

Papish, I. Ia. (2001). Work shop on Physics of the Soil. Physics of the solid phase, 1. Lviv: Vyd. Center of Ivan Franko LNU. 95 pp. (in Ukrainian).

Soils of Moldavia. (1984).Chisinau: Shtiintsa. 352 pp. (in Russian).

Revut, Y. B. (1964). Physics of soils. Lviv: Kolos, 320 pp. (in Russian).

Theories and methods of soil physics. E. Shein, L. & Karpachevsky (Eds.). (2007). Moscow: Grif and K, 616 pp. (in Russian).




DOI: http://dx.doi.org/10.30970/vgg.2017.51.8863

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