Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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336 kb

ANALYSIS OF EXTINCTION AND EMERGENCE DYNAMICS OF NEW RADIOLARIA'S SPECIES IN THE CRETACEOUS AND PALEOGENE PERIODS

abstract 1321708102 issue 132 pp. 1278 – 1289 31.10.2017 ru 97
The dynamics of changes in the species diversity of radiolarians during the last 150 million years with accuracy to one geological century was determined. The basic patterns of species and taxa of high rank change had been established for the boundary between Cretaceous and Paleogene. There were revealed topomorphic features of bipolar species, which have succeeded from the Cretaceous into the Paleogene and became ancestors of Cenozoic radiolarian fauna. Changes in the species number in the boundary between Cretaceous and Paleogene periods, and also significant variations in the species diversity in Paleocene and Eocene are connected to a combination of a number of factors. The most important of those factors are geological processes, causing extensive transgressions and regressions, climate variability, the overall evolution direction of the Earth biota and competition for important chemical components for the Radiolaria’s livelihood. The emergence of powerful tropical forests on the land with their huge bio-production and bio-chemical erosion is connected to late Cretaceous era. This resulted increasing of the dissolved material proceeding into the sedimentation pool, what is confirmed by classical bauxites emergence. Because aluminium oxide and silicon oxide are geochemically connected, we can state as well about increasing of dissolved silica flow initiated development of Diatoms, which became competitors to Radiolaria in their battle for silica. The last ones are lost this battle, what caused the species decreasing. That was not a catastrophic event with immediate extinction, but a long process
254 kb

EXPERIMENTAL RESEARCH AND MODELING OF PACLOBUTRAZOL MIGRATION IN SOIL

abstract 1191605078 issue 119 pp. 1099 – 1110 31.05.2016 ru 873
In this study, we have investigated the migration of paclobutrazol in the sod-podzolics soils. The migration of pesticide was restricted with 5 cm in the field study. Paclobutrazol was found in 11 days after application in the lysimeter’s water samples, though the pesticide is moderately mobile. The lysimeter study showed that the risk of ground water contamination would exist if application of paclobutrazol was on the sod-podzolics medium loamy soils. The modeling by PEARL 4.4.4 and MACRO 5.2 simulated the migration of paclobutrazol until 18 cm in the soil. MACRO was able to predict the leaching of pesticide. The simulated paclobutrazol losses by leaching were consistently lower than the observed
346 kb

STUDY OF CHANGES IN DEFORMATIONS AT FROST PENETRATION DEPENDING ON THE CONCENTRATION OF THE SALT SOLUTION PORE CaCI2

abstract 1081504069 issue 108 pp. 952 – 961 30.04.2015 ru 1909
We have analyzed patterns of change in deformations at frost penetration depending on the humidity, density and concentration of the salt solution pore of CaCI2
306 kb

STUDY OF CHANGES IN DEFORMATIONS AT FROST PENETRATION DEPENDING ON THE CONCENTRATION OF THE SALT SOLUTION PORE NaCI

abstract 1081504070 issue 108 pp. 962 – 973 30.04.2015 ru 2136
We have analyzed patterns of change in deformations at frost penetration depending on the humidity, density and concentration of the salt solution pore NaCI
223 kb

THE INFLUENCE OF HYDROTHERMAL CONDITIONS ON THE CATALASE ACTIVITY OF THE ZONAL SOILS OF THE SOUTH OF RUSSIA

abstract 1041410084 issue 104 pp. 1129 – 1142 30.12.2014 ru 1284
Hydrothermal conditions have a significant effect on catalase activity of soils of the South of Russia. The linear dependence of catalase activity in the upper horizons soils from average annual rainfall, aridity index of de Martonne and the coefficient of moisture of Mezentseva. In terms of catalase activity of the entire humus profile we revealed that the maximum activity has leached black soil, located in the medial climate conditions of the South of Russia
1391 kb

QUALITY ASSESSMENT AND RESERVES ESTIMATE OF GYPSUM DEPOSIT OF SHVALEVSKY LOG (PERM REGION)

abstract 0931309021 issue 93 pp. 319 – 331 30.11.2013 ru 1272
In this article we have analyzed the geological structure of the deposit; thickness of stripping soils, ore, sub-standard layers and cavernous rocks were estimated, made estimation of reserves and given the qualitative characteristics of the ore
1939 kb

ACTIONS FOR PROTECTION OF THE ENVIROMENT IN THE DEVELOPMENT OF PRIDOROZHNOE MINEFIELD (PERM REGION)

abstract 0931309022 issue 93 pp. 332 – 341 30.11.2013 ru 2008
In this article we have analyzed the geological structure and hydrogeological conditions of the minefield; we have also shown the characteristic of land planned for recultivation. We have found that recultivation provides different directions
1345 kb

SEARCHES AND MAPPING OF THE WATER-BEARING ZONES DURING HYDROGEOLOG-ICAL WORKS WITH APPLICATION OF THE LINEAMENT AND GEODINAMIC ANALYSIS

abstract 0931309032 issue 93 pp. 483 – 494 30.11.2013 ru 1434
Hydrogeological conditions and problems of regional hydrogeological works of the territory of the Perm Ural and Priurals are characterized. Possibility of providing the population is shown by fresh underground waters. The methodology of mapping of the water-bearing zones on a complex of the methods including the lineament-geodynamic analysis with allocation of geodynamic active zones on the basis of remote researches and geoinformation technologies is considered
4081 kb

EFFECT OF RECREATIONAL LOAD ON SOIL RESERVE “UTRISH”

abstract 0931309082 issue 93 pp. 1205 – 1214 30.11.2013 ru 1000
The original soils were investigated at the Black Sea coast of Russia. Severe degradation of the soil in a Utrish nation reserve were identified as a result of high recreational pressure. Soils with high recreational load have low humus content (2-3 times) and a lower en-zymatic activity than the control of the soil. Biological parameters can be successfully used for environmental monitoring of soil of Utrish reserve, in contrast to the chemical and physic-chemical properties
526 kb

CHANGE OF BIOLOGICAL ACTIVITY OF SOILS OF NORTH CAUCASUS IN RELATION TO CLIMATE

abstract 0931309083 issue 93 pp. 1215 – 1228 30.11.2013 ru 998
Climatic conditions have considerable impact on biological properties of soils of the South of Russia. From all studied indicators the most dependent on climate there was maintenance of a humus and activity of polyphenoloxidases and peroxidases. Values of the integrated indicator of a biological condition (IIBC) on a profile of soils decrease in process of increase in an amount of precipitation, decrease in temperature, and increase in height of the district in next order: meadow subalpine → brown forest → gray forest → black leached soil → black typical soil → black ordinary soi
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