scholarly journals Soil successions of carbic podzols (arenic) and umbric podzolsof sand forest steppe at change of forest-forming rocks

2021 ◽  
Vol 2 (44) ◽  
pp. 13-13
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Mixed Forest ◽  
Steppe Zone ◽  
Flood Plain ◽  
Soil Survey ◽  
Forest Steppe ◽  
Ecological Stability ◽  
Deciduous Species ◽  
Broadleaf Forest ◽  
Sand Forest ◽  
Soil Forming Processes

The article presents the data of ecological-soil survey of carbic podzols (aerenic) and umbric podzols of sandy pine forests of the Kursk agglomeration. The data on the transformation of morphological, physical and physicochemical properties of the studied soils in the succession series "pine forest - mixed forest - broadleaf forest" are presented. It has been established that when the monodominant plantations of Scots pine are replaced by deciduous species, the soil-forming processes change - podzolic to sod. The settling of deciduous species in pine plantations gradually leads to attenuation of the podzolic process, the development of processes of accumulation of humus and mineral nutrients in the soil profile, which contributes to an increase in the ecological stability of azonal carbic podzols (aerenic) and sandy umbric podzols in the conditions of the forest-steppe zone. Keywords: MICROEVOLUTION OF SOILS, TERRACE ABOVE FLOOD-PLAIN, PODZOLY PROCESS, SODDY PROCESS, SOIL SUCCESSION

scholarly journals Monitoring of the agrochemical state of agricultural chernozems of the forest-steppe zone of the central chernozem region of Russia

2021 ◽  
Vol 36 ◽  
pp. 03018
Author(s):  
A.V. Surinov
Keyword(s):  
Soil Acidity ◽  
Spring Barley ◽  
Steppe Zone ◽  
Soil Survey ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Sunflower Seeds ◽  
Forest Region ◽  
Central Chernozem

The Borisovsky district of the Belgorod region, located in the south-west of the forest-steppe zone of the Central Forest Region, was chosen for the study. The study covered an 11-year period, during which 3 cycles of agrochemical soil survey were conducted in the district - in 2010, 2016 and 2020. Analyzing the use of mineral and organic fertilizers, an increase in crop yield indicators was noted. Thus, an increase in the dose of organic fertilizers (up to 1.96 t/ha) and mineral fertilizers (up to 127.2 kg/ha) made it possible to obtain 5.13 t/ha of winter wheat, 4.19 t/ha of spring barley, 7.9 t/ha of corn for grain and 3.29 t/ha of sunflower seeds. In addition, the content of macro and microelements in the soil has changed. The active fight against soil acidity affected the content of available forms of phosphorus and zinc, the indicators of which decreased slightly.

scholarly journals Complex Geochemical Characteristics of Soils and Plants in Natural Reserve Zones of Ukraine

2021 ◽  
pp. 12-24
Author(s):  
N.O. Kryuchenko ◽  
◽  
Ya. Zhovinsky ◽  
P.S. Paparyga ◽  
O.A. Zhuk ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Quercus Robur ◽  
Humus Content ◽  
Mixed Forest ◽  
Steppe Zone ◽  
Perennial Grasses ◽  
Forest Steppe ◽  
Forest Zone ◽  
Natural Reserve ◽  
Mobile Forms

The results of a comprehensive analysis of the microelement composition of soils — B, Co, Cu, Mn, Mo, Ni, Zn and plants — Ag, Co, Cu, Mn, Mo, Ni, Pb, Zn (oak (Quercus robur L.), pine (Pinus sylvestris L.) perennial grasses — Kupena (Polygonatum multiflorum (L.) All.), wheatgrass (Elymus repens (L.) Gould)) of natural reserve belonging to different physical and geographical zones — Polessky reserve (mixed forest zone), Roztochya reserve (broad-leaved forest zone), Kanevsky reserve (forest-steppe zone), the reserve «Askania Nova» (steppe zone), the Chernogorsk massif of the Carpathian Biosphere Reserve (KBR, Ukrainian Carpathians), which are proposed to be considered as background. It was found that in the soils of mixed and broad-leaved forests and the Chernogorsk massif KBR with an increase in the content of gross forms of Co, Cu, Ni, Zn, the content of their mobile forms increases, this dependence is inverse in the soils of the steppe zone, which is associated with a decrease in soil acidity and mobility microelements A positive correlation was revealed between the humus content in soils and Zn, Co (gross and mobile forms) and negative — B, Mo in the soils of all reserve zones. It was found that the greatest biogeochemical activity is characteristic of plants in the zone of deciduous forests — oak leaves (Quercus robur L.) and pine needles (Pinus sylvestris L.).

scholarly journals Trace Element Content in the Soils of the Forest-Steppe of Western Siberia

2021 ◽  
Author(s):  
Natalia Goman ◽  
Igor Bobrenko ◽  
Oleg Matveychik ◽  
Valentina Popova ◽  
Elena Bobrenko
Keyword(s):  
Copper Content ◽  
Arable Land ◽  
Weighted Average ◽  
Steppe Zone ◽  
Average Concentration ◽  
High Availability ◽  
Soil Survey ◽  
Ordinary Chernozem ◽  
Forest Steppe ◽  
Loamy Soil

This research is based on local monitoring in 1994-2018 on reference plots of agricultural lands and materials of a large-scale agrochemical survey. The research examined the soils of the forest-steppe zone of the Omsk Region: ordinary chernozem low-power low-humus heavy loamy soil; meadow-chernozem medium-thick medium-humus heavy loamy soil; and solonetz meadow chernozemic deep low humus clay soil. It was found that almost the entire surveyed area of arable land in the forest-steppe zone of the Omsk Irtysh Land (98.1 %) had low mobile zinc availability with an average level of 0.85 mg/kg. 41.1% of arable land had low mobile manganese availability, 41.3% had medium and 17.6% had high availability; the weighted average was 13.0 mg/kg. Most of the arable land was characterized by a low degree of mobile copper content security (81.2%), while 18.3% of the land had soil with an average content, and only 0.5% of the land had high mobile copper content. The average concentration was 20.0 mg/kg. The soil levels of mobile molybdenum availability wereas follows: 71.6% of land had medium availability, 26.5% had high, and only 1.9% had low; the weighted average concentration was 0.20 mg/kg. All soils had a high degree of mobile forms of boron, while the weighted average was 2.69 mg/kg of soil. 67.8% of the area had low mobile cobalt availability, 31.6% had average availability, and 0.5 % had high availability, with an average concentration of 0.16 mg/kg in the zone. The reference plots did not differ in terms of their content of mobile zinc, copper, and cobalt, ordinary chernozems, meadow chernozem soils, and deep solonetz. Movable connections of molybdenum, manganese, and boron in ordinary chernozem were lower than in meadow chernozem soil, and the maximum ones were observed in solonetz meadow chernozemic deep. Keywords: trace elements, content, soil, survey, dynamics, Omsk region

LANDSCAPE STUDY OF CHEBOKSARY AND KUYBYSHEV RESERVOIRS COASTS FOR RECREATIONAL USING

2017 ◽  
Author(s):  
Anna Gumenyuk ◽  
Anna Gumenyuk ◽  
Inna Nikonorova ◽  
Inna Nikonorova
Keyword(s):  
Sandy Loam ◽  
Steppe Zone ◽  
Flood Plain ◽  
Forest Steppe ◽  
Forest Zone ◽  
Volga River ◽  
Underground Waters ◽  
Loam Soil ◽  
Favourable Environment ◽  
The Right

The plot of study is Cheboksary and its suburbans and located on the joint of two landscape zones: a forest zone and a forest-steppe zone. The border between the zones goes along the Volga River, which establishes favourable environment for recreation. There has been observed slope type of areas on the right bank of the Volga River of the Cheboksary and Kuybyshev Reservoir. It has 3º and more incline, with washed-off soil and broadleaved woodland (relict mountainous oak woods), subjected to considerable land-clearing. In the immediate bank zone of the Volga River, where abrasive-soil-slipping and abrasive-talus processes mostly develop, the main types of natural areas have been marked out: 1) Abrasive landslide cliffs at the original slopes of Volga Valley of 60º steepness, more than 15 m high, with permanent watering as a result of underground waters leakage; 2) Abrasive cliffs of terraces above flood-plains of 2 m high; 3) Abrasive cliffs of original slope of the valley of the river Volga of 2 m high, with distinctive abrasive niches in the lower part of the slope or temporary concentration of caving demolishing material. Left coast is lowland plain, the part of taiga landscape zone. Low terraces above flood plain of Volga are formed by sand with loam layers, with sod-podzol sandy and sandy loam soil in combination with marshy soil, with fir-pine forest, with from lichen bogs to sphagnum bog; in lowlands, on old felling plots, on abandoned peat mines deciduous forests with mostly birches and aspens prevail.

scholarly journals Results of Standardized Beekeeper Survey of Honey Bee Colony Losses in Ukraine for Winter 2018-2019

2020 ◽  
Keyword(s):  
Natural Disasters ◽  
Honey Bee ◽  
Loss Rate ◽  
Mixed Forest ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Research Association ◽  
Colony Losses ◽  
Bee Colony ◽  
Bee Colonies

Purpose. Analysis of honey bee (Apis mellifera Linnaeus, 1758) colony losses in Ukraine for winter 2018–2019 in comparison with the previous year in different physiographic zones of Ukraine and at the operations of different sizes. Methods. Survey of Ukrainian beekeepers for winter 2018–2019 using the standardised COLOSS questionnaire (International honey bee research association COLOSS). A total of 677 valid questionnaires from five physiographic zones of Ukraine were processed. Results. The total loss rate of honey bee colonies for winter 2018–2019 in Ukraine was 11.18 %, the mortality rate was 5.95 %; the losses due to unsolvable queen problems – 3.37 %, and due to natural disasters – 1.86 %. The total losses in the forest-steppe and the mixed forest zones were 16.2 % and 15.1 %, respectively, whereas in the Ukrainian Carpathians – 7.2 %. The most common sign of dead colonies in Ukraine was the presence of a large number of dead bees in or in front of the hive (25.3 %). The loss rate in the small operations was almost 18 %, in medium – 8.38 % and in large ones – 7.6 %. 77.8 % of respondents treated their bee colonies against Varroa destructor in the period from April 2018 to April 2019. 16.4 % respondents treated their colonies without prior monitoring of mite rate. The most commonly used acaricides were the veterinary medicinal products containing flumetrin (15.1 %), amitraz in strips (11.67 %) and fumigation (9.9 %), as well as oxalic acid – spraying and sublimation (9.5 % and 8.4 %, respectively). Conclusions. The total losses of honey bee colonies for winter of 2018–2019 (11.18 %) remained stable compared to the previous year (for winter of 2017–2018: 11.30 %), the losses due to colonies death (5.95 %) and losses due to natural disasters (1.86 %) decreased slightly (for winter of 2017–2018: 6.7 % and 2.4 %, respectively), whereas losses due to unsolvable queen problems increased form 2.1 % to 3.37 %). The highest losses were observed in the forest-steppe zone and the zone of mixed forests, whereas the lowest in the Ukrainian Carpathians. The smaller beekeeping operations with at most 50 colonies suffer significantly higher losses than larger operations.

scholarly journals Patterns of mercury accumulation in the organs of bank vole Myodes glareolus (Rodentia, Cricetidae)

2019 ◽  
Vol 27 (4) ◽  
pp. 329-333
Author(s):  
V. A. Gremyachikh ◽  
D. A. Kvasov ◽  
E. S. Ivanova
Keyword(s):  
Bank Vole ◽  
Metal Content ◽  
Animal Health ◽  
Mixed Forest ◽  
Steppe Zone ◽  
Atmospheric Mercury ◽  
Clethrionomys Glareolus ◽  
Myodes Glareolus ◽  
Analytical Determination ◽  
Forest Steppe

Mercury (Hg) and its compounds are among the most hazardous environmental pollutants with a high cumulative potential and they can have toxic effects on human and animal health even in low concentrations. Due to the increasing rate of human economic activity and the increase in the amount of Hg in the total cycling of matter, the study of its distribution, transformation, redistribution and accumulation in the abiotic and biotic components of various ecosystems remains important up to the present time. We assessed the content of metal in organs and tissues of the bank vole Myodes (Clethrionomys) glareolus Schreber, 1780 (Rodentia, Cricetidae), a widespread small rodent, caught in different biotopes of forest-steppe and steppe zones of Voronezh region. Measurements of Hg in samples were carried out with a mercury analyzer RA-915+ with the accessory PYRO (Lumex) using the atomic absorption method of cold steam without preliminary sample preparation (the lower limit of mercury detection in samples was 0.001 mg/kg). The sample size was 344 specimens. Mean Hg concentrations ranged from values below the analytical determination threshold to 0.887 mg/kg dry weight in the kidneys, 0.411 in the liver, 0.031 in the muscle tissue, and 0.040 in the brain. A positive correlation was found between the metal content in all possible pairs of organs (except for the “muscle – brain” pair) and a weak negative correlation was found between the Hg level and the mass of the animals. Hg concentrations in the studied organs did not differ between males and females. The metal content in the liver and kidneys of voles from the forest-steppe zone was significantly higher than in those from the steppe zone. Among all studied biotopes (meadow, pine and mixed forest, shrub thickets), the lowest concentrations were observed in animals living in pine forests, while the highest one – in more humidified bush thickets. During the vegetation season, there was a decrease in the average values of animal body mass in the samples and an increase in the content of Hg in the liver and kidneys. The results of the study are relevant in the assessment of atmospheric mercury pollution of terrestrial ecosystems using small mammals, such as Myodes glareolus, as a model object.

scholarly journals DYNAMICS OF FERTILITY OF AGRICULTURAL CHERNOZEMS OF FOREST-STEPPE ZONE OF THE CENTRAL CHERNOZEM REGIONS OF RUSSIA

2021 ◽  
Vol 16 (1) ◽  
pp. 57-61
Author(s):  
Artem Surinov
Keyword(s):  
Weighted Average ◽  
Steppe Zone ◽  
Soil Survey ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Average Dose ◽  
Arable Soils ◽  
Typical Chernozems ◽  
Central Chernozem

The research was carried out to study the dynamics of fertility of arable soils in the southwestern part of the forest-steppe zone of the Central Chernozem region. The work was carried out according to the results of an agrochemical soil survey on the territory of Yakovlevsky district of Belgorod region. The soil cover was represented mainly by typical chernozems (57.7%) and leached (28.2%). Under these conditions, an increase in the average dose of organic fertilizers in the region from 6.5 t/ha in 2010–2014 up to 14.6 t/ha in 2015-2018 while maintaining the use of mineral fertilizers at the level of 82.9 kg a.i./ha, it became one of the main factors in the growth of the weighted average content of mobile forms of phosphorus in the soil from 101 to 167 mg/kg, potassium - from 120 to 183, sulfur - from 2.5 to 4.7, manganese - from 11.0 to 13.1, zinc - from 0.4 to 0.7 mg/kg. Bringing liming volumes in the region for 2015–2018 to 32.7 thousand hectares contributed to a decrease in the share of acidic soils from 84.7 in 2009 to 52.9% in 2018.Along with the improvement of the agrochemical parameters of arable soils, there was a significant increase in the yield of the main agricultural crops: winter wheat - from 3.38 to 4.55 t/ha, corn for grain - from 4.84 to 7.60 t/ha, sugar beet - from 36.8 to 56.4 t/ha

scholarly journals Ecological aspect of the development of soil-forming processes at the post-technogenic stage

2021 ◽  
Vol 937 (2) ◽  
pp. 022008
Author(s):  
O I Podurets ◽  
M A Osintseva
Keyword(s):  
Steppe Zone ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Anthropogenic Transformation ◽  
Factors Affecting ◽  
Asynchronous Development ◽  
Plant Groups ◽  
Soil Forming Processes ◽  
First Time ◽  
Technogenic Landscape

Abstract The relevance of the study is caused by the problem of the global anthropogenic transformation of natural landscapes in Kuzbass as a result of the development of mining. The rate of reclamation of disturbed lands lags behind the rate and scale of their formation, and most of the territory is self-recovering. This paper is aimed at studying the ecological conditions of the natural environment and technogenic factors affecting the dynamics of soil-forming processes and the formation of phytocenoses in disturbed territories, which differ in the way of formation at the technogenic stage. For the first time, some physicochemical parameters of technozems were obtained. Like ebriozems, they are formed in the post-technogenic phase of the development of a technogenic landscape under the conditions of its self-growth. The similarities and differences in the properties of technozems and ebriozems formed in the same natural and climatic conditions of the southern forest-steppe zone of Kuzbass have been revealed. It was found that the rate of their transformation, expressed in the formation of the soil profile, depends on the conditions of the relief and underlying rocks created at the technogenic stage. The presence of a preserved layer of potentially fertile rocks and the absence of slope surfaces led to the formation of the frontal soil and vegetation cover of the technozem; under other conditions, the formation of soils and plant groups occurs fragmentarily, which leads to the asynchronous development of the functions and modes of the technogenic landscape.

LANDSCAPE STUDY OF CHEBOKSARY AND KUYBYSHEV RESERVOIRS COASTS FOR RECREATIONAL USING

2017 ◽  
Author(s):  
Anna Gumenyuk ◽  
Anna Gumenyuk ◽  
Inna Nikonorova ◽  
Inna Nikonorova
Keyword(s):  
Sandy Loam ◽  
Steppe Zone ◽  
Flood Plain ◽  
Forest Steppe ◽  
Forest Zone ◽  
Volga River ◽  
Underground Waters ◽  
Loam Soil ◽  
Favourable Environment ◽  
The Right

The plot of study is Cheboksary and its suburbans and located on the joint of two landscape zones: a forest zone and a forest-steppe zone. The border between the zones goes along the Volga River, which establishes favourable environment for recreation. There has been observed slope type of areas on the right bank of the Volga River of the Cheboksary and Kuybyshev Reservoir. It has 3º and more incline, with washed-off soil and broadleaved woodland (relict mountainous oak woods), subjected to considerable land-clearing. In the immediate bank zone of the Volga River, where abrasive-soil-slipping and abrasive-talus processes mostly develop, the main types of natural areas have been marked out: 1) Abrasive landslide cliffs at the original slopes of Volga Valley of 60º steepness, more than 15 m high, with permanent watering as a result of underground waters leakage; 2) Abrasive cliffs of terraces above flood-plains of 2 m high; 3) Abrasive cliffs of original slope of the valley of the river Volga of 2 m high, with distinctive abrasive niches in the lower part of the slope or temporary concentration of caving demolishing material. Left coast is lowland plain, the part of taiga landscape zone. Low terraces above flood plain of Volga are formed by sand with loam layers, with sod-podzol sandy and sandy loam soil in combination with marshy soil, with fir-pine forest, with from lichen bogs to sphagnum bog; in lowlands, on old felling plots, on abandoned peat mines deciduous forests with mostly birches and aspens prevail.

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