scholarly journals Ranunculus polyphyllus Willd. still grows in Slovakia

2021 ◽  
Vol 31 (2) ◽  
Author(s):  
Daniel Dítě ◽  
Miloš Balla ◽  
Zuzana Dítě

Ranunculus polyphyllus is a Eurosiberian species of the Eurasian forest-steppe zone, extremely rare in the western part of its distribution range, in Central Europe. In Slovakia, this lowland semiaquatic plant has its westernmost border, where only a few historic locations are known, and which have not been confirmed since 1965: one on the Podunajská nížina Lowland and three on the Východoslovenská nížina Lowland. These records, however, do not include any vegetation data. The species has been recently rediscovered in Slovakia on the Východoslovenská nížina Lowland: one historical site was confirmed in 2020 in the periodically inundated pasture near Strážne settlement, and a second site was found in 2021 near Zemplínske Hradište in a flooded depression in intensively used agricultural land which was formerly used as rice fields. In its European range, this species has been observed only in natural wetlands, and its ability to occupy secondary habitats has not yet been reported. Here we provide new data on the recent occurrence of Ranunculus polyphyllus in Slovakia with regard to its vegetation and habitat conditions.

2021 ◽  
Vol 7 (1) ◽  
pp. 705-717
Author(s):  
Konstantin Mikhailovich Andreev ◽  
Alexander Alekseevich Vybornov

Abstract Early pottery on the territory from the Eastern Caspian Sea and Aral Sea to Denmark reveals a certain typological similarity. It is represented by egg-shaped vessels with an S-shaped profile of the upper part and a pointed bottom. The vessels are not ornamented or decorated with incised lines, organized often in a net. This type of pottery was spread within hunter-gatherer ancient groups. The forest-steppe Volga region is one of the earliest centers of pottery production in Eastern Europe. The first pottery is recorded here in the last quarter of the seventh millennium BC. Its appearance is associated with the bearers of the Elshanskaya cultural tradition. The most likely source of its formation is the territory of Central Asia. Later, due to aridization, these ceramic traditions distributed further westward to the forest-steppe Don region. During the first half of the sixth millennium BC, groups associated with the bearers of the Elshanskaya cultural tradition moved westward. Significant similarities with the ceramic complexes of the Elshanskaya culture are found in materials from a number of early pottery cultures of Central Europe and the Baltic (Narva, Neman, and Ertebølle).


2015 ◽  
Vol 5 (3) ◽  
pp. 65-75 ◽  
Author(s):  
Мучник ◽  
Eugenia Muchnik

The main are high demands to the habitat conditions (stenotopic or not) and confinedness only to oldgrowth and undisturbed forests and bogs as well as old parks. The lists of indicator species for biologically valuable forest landscapes in the coniferous-broadleaved, broadleaved forests subzones and forest-steppe zone of the Central Russia are given.


Author(s):  
Oleksandr Nadvirniak ◽  
Oleg Pogorilets

In autumn 2009, 33 whole and 3 fragmented аntoniniani were discovered and collected within the object of the Late Roman Age - Pereginka (Balakiri)2. According to available information, mostly the coins were concentrated in a limited area with sides of about 15 by 10 meters, and only a few ones were spread by plowing equipment at a distance of up to 30 meters. The distribution of coins and the general state of preservation suggests the collected аntoniniani may have been a part of the deposit, which lay at a depth of 25-40 cm, and was made on the day surface due to the use of more powerful attachments that is used in recent years in the cultivation of agricultural land. In the following years, another five whole and three fragmented аntoniniani were found. The total number of discovered coins is 44 copies. Chronologically, the complex is determined by the lower date – 238 A.D. – the issues of Gordian III: «IOVI CONCERVATORI» and «PROVIDENTIA AVG»; and the upper – 251-253 A.D. – the issues of Trebonianus Gallus «PIETAS AVGG» and Voluzian «PAX AVGG». The chronological framework of the complex's emissions is a relatively short period – about 15 years. The complex became the first fixed and attributed deposit of аntoniniani in the forest-steppe zone of South-Eastern Europe and it is extremely important for understanding the processes of formation of Chernyakhiv culture, as well as, further analysis and development of socio-economic relations of the Roman Empire and «Barbarian» communities in the east of the Danube Limes line. At the same time, the limited source base makes no sense to draw any conclusions about the ethnicity or social status of the deposit holder, as well as about possible ways of entering аntoniniani from the complex Perehinka (Balakiri) 2 on the territory of the Ukrainian Forest-Steppe. To receive conditions close to reality it is possible under the condition of detectiono of the closed complex (or its additional inspection) at carrying out full-fledged archeological researches of the given object. Undoubtedly, one can declare working hypotheses: the аntoniniani came here as prey captured by the «barbarians» during the fighting of 247-251 A.D.; or as a part of the ransom payments promised by Trebonianus Gallus to the «barbaric» tribal or military elite. It can be assumed that the аntoniniani belonged to one of the soldiers of the legions stationed in Moesia, who rebelled and joined the coalition of «barbarian» tribes during the «Scythian» wars, we can appeal to the testimony of Zosimus (Zos., I, 28) about a successful campaign of the Roman units in 253 A.D. those were led by Aemilian, during which not only the detachments of «barbarians» led by Kniva were defeated, but also a successful raid was carried out in their land. It is possible to consider assumptions that the complex could be a part of monetary maintenance of the serviceman or the veteran of regular or federal divisions… But – concerning each of the above-stated hypotheses it will be possible to find and express equal argumentation «for» and «against». As with the typology, the deposit is classified as a single-nominal or mixed treasure, as not only denarii but also sesterces and provincial issues are found on the site. We should also pay attention to another key point. The оbject Perehinka (Balakiri) 2, territorially belonging to the upper reaches of the Southern Bug, is located in a region characterized not only by high density and extreme saturation of monuments those belong to the Chernyakhiv culture, but also as one of the main areas its formation. It is here the objects represented by artifacts attesting to their belonging to the early stage of the Chernyakhiv culture are concentrated: Ruzhychanka, Cherneliv-Rusky, Berezhanka, Lepesivka, Luka-Vrublivetska, Chankiv I, and others. If we take into account the chronology of the early stage of Chernyakhiv culture- the so-called «ruzhychanka phase» (according to E. Gorokhovsky) – 230-270 A.D.; the «first phase» (according to I. Bazhan and A. Gay), which are generally synchronized with phase C1 of the Central-European chronological system – 220-260 A.D. – then the complex of аntoniniani from Pereginka (Balakiri)2 can be one of its chronological benchmarks, as an example, and аntoniniani Valerian and Trajan Decius (for Gerenia Etruscilla) in one of the burials of the Chernyakhiv necropolis of Talalayevka (Khrystynivskyi district, Cherkasy region).


Author(s):  
M.M. Ptashnik ◽  
S.V. Dudnyk ◽  
F.I. Brukhal ◽  
N.Ye. Boris

In the results of research are presented the regularities of the formation of cenoses of segetal vegetation in field crops, in particular, corn for grain and soybeans, with adaptive tillage systems in the Forest-Steppe zone of Ukraine in order to develop effective, environmentally safe, resource-and energy-saving agrotechnological measures to control the level of contamination of agricultural land. The research was carried out during 2016-2020 in a stationary two – factor field experiment, which includes 5 alternative tillage systems (plowing, flat – cutting processing, differentiated – chiseling, shallow and surface – disking) and 3 fertilizer systems (without fertilizers; earning in the soil by – products of the predecessor; by-products + mineral fertilizers) in a short-term grain crop rotation (winter wheat-corn for grain-spring barley-soy) on gray large-sawn-light loamy forest soils.It was found that in agrocenoses of corn for grain and soybeans during the growing season, a small-year type of contamination is formed with a predominance of representatives of the Poaceae family, the monocotyledonous class, in particular Echinochloa crus-galli L. and Setaria glauca L.The best results in controlling of the development of segetal vegetation on experimental variants were provided by varieties of deep tillage (plow, flat-cut or chisel) against the background of an organic-mineral fertilizer system with the introduction of by-products of the predecessor into the soil and the introduction of mineral fertilizers. Such fertilizer systems decreased the contamination of crops by 38.9%.When cultivating the soil without turning the soil chunk – flat-cut and disking, against the background without fertilizers, the development of segetal vegetation was poorly controlled.Systems of minimized–shallow and surface disk treatments significantly (up to 88%) increased the abundance and (up to 91%) weight indicators of crop weed contamination in the pre-harvest period compared to multi-depth plowing and differentiated system of basic soil tilling.


2018 ◽  
Vol 12 (4) ◽  
pp. 91-98
Author(s):  
Ольга Долматова ◽  
Ol'ga Dolmatova ◽  
Юрий Рогатнев ◽  
Yuriy Rogatnev

The article presents the results of applying the methodology for assessing the quality of land to ensure effective agricultural production. On the basis of correlation-regression analysis, indicators were chosen, that ensure high and medium tightness of communication, necessary for the formation of effective use of land by agricultural organizations in the context of municipal districts of Omsk region. Using the variation coefficient, which shows the relative measure of the spread of data, a set is defined. Based on the selected indicators, in accordance with the scaling factor scale, an index assessment of the conditions was carried out, which showed that the agricultural organizations of the steppe and southern forest-steppe zone of Omsk region are most favorable for natural conditions and land properties. Not so definitely, but, basically, the situation of advantage in the supply of labor resources to organizations of the steppe and southern forest-steppe zone was confirmed. However, in terms of the availability of the main means of production, the best indicators are for organizations of the southern forest-steppe zone, which in the end provided them with an advantage in the anthropogenic conditions of using the land in front of other zones. In general, the overall quality of land use conditions in the areas of the southern forest-steppe was higher than in other areas. This has had a decisive impact on the level of efficiency of agricultural land use in the districts of the region. In general, the areas of the southern forest-steppe have a higher efficiency of land use and the efficiency of crop production.


2021 ◽  
Vol 45 (2) ◽  
pp. 245-252
Author(s):  
E.A. Terekhin

The paper presents results of the analysis of long-term changes in the vegetation cover of abandoned agricultural lands in the forest-steppe zone of the Central Chernozem Region using time series of the Normalized Difference Vegetation Index (NDVI), which are measured using MOD13Q1 data. The vegetation index dynamics linked with the proportion of forest communities formed on the abandoned agricultural lands is investigated. The index values for the period of mid-August are the most informative for analyzing the share of forest communities growing on the abandoned agricultural land. Abandoned agricultural lands with coniferous forests have a higher correlation with NDVI than fallows with deciduous species. In the period 2000-2018, for all types of abandoned arable lands, the presence of a positive statistically significant trend component of the vegetation index long-term series is established. Using a slope angle coefficient of the NDVI trend line, a spatio-temporal analysis of the rate of formation of forest stands in the forest-steppe fallows at the beginning of the XXI century was carried out. Features of this process are studied.


2021 ◽  
Vol 901 (1) ◽  
pp. 012034
Author(s):  
I A Trofimov ◽  
L S Trofimova ◽  
E P Yakovleva ◽  
D M Teberdiev ◽  
A A Kutuzova ◽  
...  

Abstract In order to study the spatial distribution of biological and ecological patterns of grass ecosystems, we conducted an agrolandscape-ecological zoning of the territory of the Central Chernozem Region of Russia (CCR) on the basis of the author’s methodology. According to the zoning data, it is established that 75% of the territory of the CCR belongs to the forest-steppe zone. The Central Russian province of the forest-steppe zone covers 67% of the territory of the CCR. Yeletsky district occupies the eastern spurs of the Central Russian upland. The area of the district is 1929.7 thousand hectares. Most of the district (90%) is located in the Lipetsk region, 10% – in the Kursk region. In the past, the watersheds of the district were occupied by meadow steppes and partly oak forests. Currently, more than 80% of the district’s territory is occupied by agricultural land (arable land, pastures, hayfields). The structure of land is dominated by arable land-67% of the total area of the district, pastures occupy 11%, hayfields – 3%, forests – 7%, shrubs – 2%, under water and swamps – 1%, other land – 8%. The grass ecosystems of the meadow steppes preserved along the gullies and slopes are mainly used as natural grasslands (NG) and make up 79% of all NG of the Yelets District. The most common are the downed tipchak pastures on the slopes of different steepness. The yield of these pastures is 8–12 centners per hectare of dry eaten mass.


2020 ◽  
Vol 15 (4) ◽  
pp. 482-491
Author(s):  
A.V. Gan'kin ◽  
◽  
L.M. Khoncheva ◽  
A.P. Demin ◽  
V.V. Chernyshkin ◽  
...  

The article discusses the particular conditions of the forest-steppe zone in the Saratov region with a predominance of moderate and severe erosion hazard. Effective methods and possibilities of creating highly productive agricultural land in such conditions with the maximum approximation of them to natural ecosystems are presented. The environmental requirements considered by various scientists are given to achieve ecological balance in these types of cultivated land. All presented systematized natural and socio-economic components capable of stabilizing and destabilizing effects on the stability of the agrolandscape have a great influence on the stability of its existence over time and on the specific territory. A special role in achieving ecological balance and the formation of highly productive agrolandscapes in the forest-steppe zone of the Saratov Region is assigned to the organization of agricultural land, taking into account the influence of various anthropogenic components on zonal features. The necessity of determining the optimal ratios of natural and man-made land is substantiated. The presence of natural, mediumregulating components on agrolandscapes allows us to create conditions for bringing them closer to natural ecosystems. Therefore, for each type of agricultural landscape, taking into account the terrain and modern requirements for agricultural production, it is necessary to develop adapted components and modular schemes of soil protection systems by including crops with high anti-erosion resistance in the structure of the anthropogenic landscape. These are perennial cereal and bean herbs. The proposed models for organization of the territory, taking into account the types of cultivated land, the use of land reclamation arrangements, the selection of the optimal ratio of arable land, agricultural technology measures will bring it closer to the functions of natural ecosystems and increase the efficiency of agricultural production.


2020 ◽  
pp. 67-79
Author(s):  
Yu. Kravchenko

In Ukraine 57.5 % of agricultural land is subjected to erosion with 10–24 million tons of humus, 0.3–0.96 million tons of nitrogen, 0.7–0.9 million tons of phosphorus and 6–12 million tons of potassium lost annually. Degradation processes are also common on chernozems, which cover about 60 % of the Ukrainian territory. The aim of the research is to defi ne the most eff ective soil conservation practices and legislative decisions aimed to conservation/recovering the Ukrainian chernozem fertility. The experimental data of the agrochemical certifi cation of Ukrainian lands, data from scientifi c papers, stock and instructional materials as well as our own fi eld and laboratory studies were used. It has been established that the long-term use of deep subsurface tillage on typical chernozem increases, compared with plowing, the content of 10–0.25 mm of air-dry and water-resistant aggregates, the bulk density, soil water storages, water infi ltration rates, the content of mobile phosphorus and exchangeable potassium, pHH2O, CaCO3 stocks, the contents of humic and fulvic acids, molecular weights of humic acids – by 5.5 and 3.06 %; 0.05 g/cm3; 25.5 mm; 22.6 mm/h; 0.1 and 3 mg/100 g of soil; 0.03 pHH2O; 18 t/ha, 0.02 and 0.04 %, 91195 kDa, respectively. Fertilizers may contribute to the crop yields increase from by 60% in the Polissya, by 40 % – in the Forest Steppe, by 15 % – in the Wet Steppe, by 10 % – in the Dry Steppe and by 40 % – in the Irrigated Steppe areas. In soil-conservation rotations, the crop placement and alternation are advisable to combine with strips or hills sowing, taking into account the local relief features; soil alkalinization, applying anti-erosion structures. Ukrainian agriculture will receive additional 10–12 million tons of forage units or 20–22 % from all fodder in a fi eld agriculture under increasing 8–10 % of arable lands for intercrops. It is advisable to mulch the eroded chernozems of Ukraine depending on their texture composition: 1.3 t/ha of mulch for sandy and loamy soils, 1.9 t/ha – for sandy and 1.1 t/ha – for loamy soils. The implementation of soil conservation agriculture can minimize some soil degradation processes and improve eff ective soil properties required to realize the biological potential of cultivated plants. Key words: chernozem, degradation, fertility, soil conservation technologies, agriculture policy.


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