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    Wyświetlanie 1-34 z 34
    Tytuł:
    Actual State and Changes of Flora and Vegetation in the Broczówka Steppe Reserve
    Autorzy:
    Cwener, Anna
    Nowak, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/764985.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    steppe reserve
    rare and endangered species
    succession
    Opis:
    This paper presents floristic characterization of xerothermic plant associations and analysis of changes of flora within Broczówka steppe reserve. The floristic research was carried out in 2004-2009. Numerous species that were noted here almost 30 years ago were not found in the present study, the size of other populations decreased. Nevertheless, many plant species occurring in the reserve are rare, endangered or protected. Six major plant associations, impoverished form of two ones and one plant community are distinguished in the whole area of the reserve. Occurrence of two plant associations was not confirmed.
    Źródło:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2011, 7; 163-176
    1730-2366
    2083-8484
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Biologica et Oecologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stratyfikacja społeczna ludności prawobrzeżnego leśnostepowego Podnieprza okresu Scytii klasycznej (2. poł. VI–IV/III w. p.n.e.)
    Social stratification of forest-steppe population of the right-bank of the Dnieper river during the classical Scythia (the second half of 6th–4th/3rd century BC)
    Autorzy:
    Burghardt, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/567537.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    graves
    social stratification
    forest-steppe
    classical Scythia
    Scythians
    Opis:
    The article discusses the issue regarding the reconstruction of social structure of the early Scythian populations from the forest-steppe area of the Dnieper river, in the period between the second half of 6th–4th/3rd century BC, on the basis of funeral materials. As a result of the analysis of the most important elements of burial rites implemented by the discussed population groups, and based on records of ancient authors (The Histories by Herodotus), it has been established that the most valuable sources are the size and complexity of the funerary structure and covering embankment as well as quantitative and qualitative diversity of included inventory. The classification developed on the basis of 198 burials, by means of statistical inference methods, has led to the separation of several classes of graves that can be combined with different social strata. These layers included nomadic higher spheres (leaders of local communities, leaders of “military teams” and tribal aristocracy) and elites of local settled tribes, average members of the population divided into its wealthy representatives and the so-called “simple Scythians” and lower layers of (“the poor”) and people with limited rights (domestic slaves?).
    Źródło:
    Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego; 2017, 38; 111-154
    0137-5725
    Pojawia się w:
    Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temporal change of soil chemical properties in the southern forest-steppe of the Ufa region of the Republic of Bashkortostan, Russia
    Autorzy:
    Asylbaev, Ilgiz
    Khabirov, Ilgiz
    Khasanov, Ayrat
    Gabbasova, Ilysja
    Garipov, Timur
    Powiązania:
    https://bibliotekanauki.pl/articles/947131.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    agrochemical properties
    forest-steppe
    monitoring
    soil fertility
    soil maps
    Opis:
    Modern technologies make it possible to obtain a lot of diverse information about the soil properties using satellite images, but field studies are also required to create or refine digital soil maps. To create a digital soil map scaled 1:25 000 in 2016, a classical field study was conducted with the laying of soil sections in places with the same coordinates as in the mapping of 1982. It allowed to carry out retrospective monitoring of transformation of morphogenetic and agrochemical properties of soils of the southern forest-steppe of the Republic of Bashkortostan (Russia) for the 34-year period of farm use. Thus, the correction and digitization of the soil map allowed to establish that arable land occupies 69.792 ha (67.9%) in the structure of agricultural land (102 811 ha). The monitoring showed deterioration of the main characteristics of arable soil fertility: the diminishing of humus-accumulative horizons, significant decrease of humus content (p ≤ 0.05), a small but reliable acidification of the medium reaction and reducing labile phosphorus. Losses of organic matter occurred mainly in the most fertile soils; their proportion decreased from 55.9% of the total area of agricultural land to 12.4%.
    Źródło:
    Journal of Water and Land Development; 2020, 44; 8-12
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Botanical Diversity of Arid Steppe in South East of Algeria (Biskra)
    Autorzy:
    Belhadj, Amina
    Allache, Fatma Demnati
    Boulghobra, Nouar
    Mebrek, Naima
    Powiązania:
    https://bibliotekanauki.pl/articles/2202318.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    plant diversity
    diversity parameter
    arid steppe
    plant community
    Opis:
    In the light of climate change, it is important to acquire the information on the diversity of flora in order to ensure rational use of steppe rangelands. The present study aimed at diagnosing the botanical and the taxonomic diversity of the arid steppe plant communities in South East of Algeria. A total of 216 phytoecological sampling, were collected in three sites and one sample for each month during 2017 and 2018. The vegetation was analyzed using various species diversity parameters (abundance, species richness, life forms, alpha and beta diversity indices and disturbance index). Results show that 985 plant individuals were classified into 27 species, 27 genera and 14 families, with predominance of Chenopodiaceae and Asteraceae in the arid steppe of El-Haouch, and remarkable dominance of Chamaephytic and Therophytic plants in different phytoecological groups. The state of vegetation degradation in a susceptible environment on Algeria’s rangeland in the South East which is confirmed by the low values of Shannon, Jaccard indices and the values of disturbance index ranged between 50 and 85.71%. The alpha diversity parameters of the different phytoecological groups have low values, which reflect a more fragile homogeneous ecosystem, unfavorable life conditions and the absence of certain species of high pastoral value.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 1; 120--134
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial Modeling of the Effects of Deflation Destruction of the Steppe Soils of Ukraine
    Autorzy:
    Dudiak, Nataliia Vasylivna
    Pichura, Vitalii Ivanovich
    Potravka, Larisa Aleksandrovna
    Stroganov, Alexander Alexandrovich
    Powiązania:
    https://bibliotekanauki.pl/articles/123298.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    wind erosion
    soil loss
    steppe soils
    geomodeling
    GIS technologies
    ERS
    Opis:
    The decrease in the agricultural efficiency is associated with the influence of wind erosion, the consequence of which is a decrease in the soil fertility. Significant effects of wind erosion are typical of the arid and semi arid zones with a small amount of precipitation, high air temperature and degree of evaporation, reinforced by strong winds and low differentiation of plant protection. It has been proven that the intensity of the effects of deflation processes depends on the physical and geographical conditions of the distribution of agricultural land, systematic soil protection activities and the availability of vegetation. It has been established that the acceleration of the deflation processes occurs in the territories with increased anthropogenic pressure, which leads to ecological disturbance of the natural balance characterizing territorial ecosystems. In the course of the studies it was found that the natural processes of wind erosion are significantly enhanced by the absence of a scientifically-based and ecological land development system of agriculture, which leads to destruction of the soil cover, reduction of soil fertility, damage to the agricultural crops and, thus, the economic damage. As a result of application of the GIS and ERS technologies, the empirical-statistical model of the possible soil loss due to wind erosion in the territory of the Steppe zone of Ukraine, it has been found that in the course of the deflation processes in the territory taken by naked fallow upon the absence of the conditions for the deflation resistance activities, the value of soil loss at the epicenter of dust storms can reach about 600 t / ha. Studies proved the importance of the deflation resistant action of the vegetation cover, which tends to an increase in the erosion dangerous (favorable) areas of agricultural land by 1.7 times, which reduces the soil loss by 5.62 times. In accordance with the intensity of the effects of the deflation processes and the increase of the soil losses, the contour and land development deflation resistance activities with elements of soil protection agriculture were proposed.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 2; 166-177
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Soil Moisture on the Epigeic Arthropods Diversity in Steppe Landscape
    Autorzy:
    Kirichenko-Babko, Marina
    Danko, Yaroslav
    Franus, Małgorzata
    Stępniewski, Witold
    Powiązania:
    https://bibliotekanauki.pl/articles/124674.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    steppe
    humidity
    ground-dwelling beetle
    distribution
    south-western Ukraine
    Opis:
    The consequences of global climate change are a decrease in precipitation as well as an increase in the length of the period with high temperatures from spring to autumn. The climate change intensified the negative consequences of land reclamation and regulation of rivers by dams in Ukraine in the 20th century. The modern landscape of the Circum-Pontic and Circum-Azov regions in Ukraine has undergone desertification, and a multiple reduction in the freshwater runoff has manifested itself in a violation of the water balance of soils and their salinization. In addition to the climate change and anthropic landscape transformations, most upland areas in southern Ukraine have been converted into farmland, systematically fertilized and treated with pesticides and herbicides. Total plowing of the territory also led to soil erosion and degradation. The global climate change and the impact of human activity have affected the diversity of the steppe fauna as well. The questions of the influence of soil humidity on the diversity of epigeic arthropods were considered on the example of ground beetles (Coleoptera, Carabidae). Soil moisture is one of the key factors that determines their diversity.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 5; 137-147
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contributions to the flora of steppes of the Black Sea Region [Ukraine]
    Autorzy:
    Moisienko, I
    Gorski, P.
    Boiko, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/878109.pdf
    Data publikacji:
    2002
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    Ukraine
    Black Sea Region
    rare species
    flora
    Festuco-Brometea
    steppe
    contribution
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika; 2002, 05
    1508-9193
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The dynamics of the population of a steppe perennial Senecio macrophyllus M.BIEB. during xerothermic grassland overgrowing
    Autorzy:
    Czarnecka, B
    Powiązania:
    https://bibliotekanauki.pl/articles/56894.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    population dynamics
    steppe plant
    Senecio macrophyllus
    xerothermic grassland
    life-stage structure
    Opis:
    The study aimed to determine the long-term changes of the Senecio macrophyllus M.BIEB. population traits: the abundance, reproduction mode, individual fecundity, seed rain and recruitment of new genets in the course of xerothermic grassland overgrowing. The study had also the applied goal: to estimate the chances of "special care" species to survive in the changing environment without management regime for the maintenance of grassland. The model object was the island population of large-leaved ragwort on Biała Góra (the White Mountain) near Tomaszów Lubelski, South-East Poland. To achieve these aims I used the following sets of data: phytosociological relev,s made in plant communities in an interval of 16-18 years; repeated elaboration of the numbers and life-stage structure of the population, both by non-surface and surface method; observation of plants, life cycle in 50 labelled genets; population reproduction and seed rain amounts. The area of an open xerothermic grassland decreased due to the process of overgrowing by bushes which was accompanied by the increasing coverage of forest and meadow herbs as well as monocotyledons, mainly Brachypodium pinnatum and Calamagrostis epigejos. The abundance of the S. macrophyllus population noticable diminished. The flowering mode has been changing during years from an oscillation to a chaotic type which caused the significant decreasing of the individual fecundity, population reproduction and seed rain. In last years it was reflected in the interruption of juveniles’ recruitment.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2009, 78, 3; 247-256
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The problem of horse domestication. Selected issues
    Problematyka domestykacji konia. Wybrane zagadnienia
    Autorzy:
    Skrzyniecka, Weronika
    Powiązania:
    https://bibliotekanauki.pl/articles/498011.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    horse
    domestication
    Eurasian Steppe
    archaeozoological evidence
    genetic evidence
    Botai culture
    Opis:
    The main goal of this paper is to discuss the current state of research on horse domestication in prehistory by using selected evidence. This article refers to the steppe origin of horse domestication. Recently, the debate on this problem concerns not only archaeological aspects but also specialist analyses, such as archaeozoology or genetics. The interdisciplinary character of the problems explored in this article creates significant research possibilities, especially with regard to the of origins and dating of horse domestication. All of these issues are still open for debate among archaeologists.
    Źródło:
    Analecta Archaeologica Ressoviensia; 2014, 9; 299-325
    2084-4409
    Pojawia się w:
    Analecta Archaeologica Ressoviensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    «Wernyhora» i «ukraiński step» jako polskie „lieux de mémoire”
    Autorzy:
    Marta, Brzezińska,
    Powiązania:
    https://bibliotekanauki.pl/articles/1927187.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Wernyhora
    places of memory
    Polish romanticism
    Polish identity
    Ukrainian Steppe
    Opis:
    The aim of the article is to present figures of Ukrainian legendary bard Wernyhora and the Ukrainian Steppe as Polish places of memory according to the concept of French historian Pierre Nora. In this concept a place or figure can act as a transmitter of national common values or a center around which visions of the past can be formed. Places of memory (lieux de mémoire) are also special kinds of symbols because of their visual character. In the article I try to highlight this based on (mainly) literature of Polish romanticism. A visual character of both figures and its connection with Polish identity and historical discussions make them vital and important motif of Polish past and imaginary.
    Źródło:
    Studia Interkulturowe Europy Środkowo-Wschodniej; 2015, 8; 34-42
    1898-4215
    Pojawia się w:
    Studia Interkulturowe Europy Środkowo-Wschodniej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Percepcja przyrody w sonecie Stepy akermańskie Adama Mickiewicza i jego przekładach na język rosyjski
    Perception of nature in the Adam Mickiewicz’s sonnet The Akkerman Steppe and its Russian translations
    Autorzy:
    Borys, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/482163.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    Adam Mickiewicz
    Crimean Sonnets
    translation to Russian
    Romantic translation
    The Akkerman Steppe
    Opis:
    The paper analyses Russian translations of The Akkerman Steppes (Crimean Sonnets) from the perspective of perception of nature by the poet and its translations. The author examines their characteristics connected with the interpretation of this poem and the translation choice – a challenging exercise for translators.
    Źródło:
    Acta Polono-Ruthenica; 2017, 2, XXII; 91-101
    1427-549X
    Pojawia się w:
    Acta Polono-Ruthenica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of the Research on Spatio-Temporal Differentiation of a Vegetation Index in Evaluating Sunflower Hybrid Plasticity and Growth-Regulators in the Steppe Zone of Ukraine
    Autorzy:
    Pichura, Vitalii
    Domaratskiy, Yevhenii
    Potravka, Larisa
    Biloshkurenko, Oleksandra
    Dobrovol'skiy, Andrey
    Powiązania:
    https://bibliotekanauki.pl/articles/24201739.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    sunflower
    growth-regulatory preparation
    climate
    vegetation
    NDVI
    Steppe zone
    remote sensing
    Opis:
    The purpose of the study was to establish dependence of sunflower productivity on hybrid plasticity under the climatic conditions of the Steppe zone and effectiveness of growth-regulators on the basis of the analysis of differentiation of a vegetation index. The research on the development and productivity of different sunflower hybrids under the natural-climatic conditions of the Steppe zone of Ukraine was conducted in the years of 2019 (medium-wet), 2020 (dry) and 2021 (wet). Spatio-temporal differentiation of the vegetation of sunflower hybrids was established on the basis of calculation of a normalized difference vegetation index (NDVI) using the data of the decoded space images of Sentinel 2. Cartographic and grapho-analytical materials reflecting the reaction of plants to natural-climatic conditions and multifunctional growth-regulators were obtained. The dependence of the reaction of sunflower hybrids to multifunctional growth-regulators on their plasticity in response to the natural-climatic conditions of the Steppe zone was established. There was a weak reaction to application of growth-regulators of the sunflower hybrids Oplot and P64HE133 which are characterized by a high level of plasticity in response to the natural-climatic conditions of the Steppe zone. It was proven that the application of the biological preparation Helafit Combi exceeded the level of agrocenoses productivity in comparison with the chemical preparation ArchitectТМ by 1.1-5.4%. It was established that foliar treatment with growth-regulators led to a decline in water uptake by the sunflower hybrids by 1.2–10.0% in the dry year, by 3.8–8.6% in the medium-wet year and by 3.7%–21.9% in the wet year. There was a significant reduction in the level of water uptake by the hybrid Hector – by 7.7–10.0% and the hybrid 8KH477KL – by 1.2–21.9%. The research results are the basis for forecasting the development of sunflower hybrid crops with further measurement of the crop productivity that allows establishing a probable level of efficiency of sunflower hybrid production by agricultural producers under the climatic conditions of the Steppe zone.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 6; 144--165
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the relations between burial types and a level of development of the society
    Autorzy:
    Grechko, Denis S.
    Powiązania:
    https://bibliotekanauki.pl/articles/567516.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    East European Forest-Steppe
    Bronze Age
    Scythian period
    funeral ceremony
    human burials
    exposure
    Opis:
    There are main forms of the funeral ceremony of indigenous population of Central and East European Forest-Steppe of the Bronze Age and the Scythian period which have been marked out in the article. The ways of treating the dead were different. The body could be buried in the ground and burial mounds within the territory of settlements (in household buildings and special graves). The bones of dead could be left in the settlement area on exposure. The forest-steppe population followed a tradition of forefathers which was expressed in worship of human remains.
    Źródło:
    Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego; 2017, 38; 101-109
    0137-5725
    Pojawia się w:
    Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some remarks on new directions in social archaeology of early nomads
    Autorzy:
    Vdovchenko, Evgeny
    Pokutta, Dalia
    Powiązania:
    https://bibliotekanauki.pl/articles/1035357.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    archaeology of the great steppe
    actor-network theory
    sarmatians
    tamga
    broken glass theory
    Opis:
    The article discusses the interpretational issues of the so-called actor-network theory (ANT) in relation to the archeology of nomadic societies. Based on selected examples, in particular the analysis of clan symbols, the so-called tamga and military organization units (so-called troops), the authors present potential new interpretations of known cultural phenomena in the archeology of the Great Steppe.
    Źródło:
    Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego; 2020, 41; 53-56
    0137-5725
    Pojawia się w:
    Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contribution to morphology and ecology of Polyporus rhizophilus
    Dane do morfologii i ekologii Polyporus rhizophilus
    Autorzy:
    Luszczynski, J.
    Luszczynska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/67667.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    morphology
    ecology
    Polyporus rhizophilus
    fungi
    graminicolous fungi
    threatened fungi
    steppe fungi
    occurrence
    locality
    Opis:
    The distribution and ecological conditions of the occurrence of Polyporus rhizophilus in Poland are discussed. The species was previously known from only one locality in Dwikozy near Sandomierz. Further localities were found on the roots of Stipa capillata in the Skorocice reserve near Busko Zdrój and at an anthropogenic site among Dactylis glomerata, Poa annua and P. trivialis grasses in an urban park in Końskie. The latter locality is noteworthy as it is situated outside the occurrence range of xerothermic grasslands in the Wyżyna Kielecko-Sandomierska upland. This locality is isolated ecologically from the two remaining Polish localities situated in the xerothermic grasslands.
    Polyporus rhizophilus należy do rzadkich grzybów związanych z trawami stepów i kserotermicznych muraw rozwijających się w klimacie kontynentalnym. Na stanowiskach naturalnych notowany bywał głównie na korzeniach wielu gatunków traw, jednak najczęściej z rodzaju Stipa. W Polsce znany był do tej pory z jednego stanowiska w Dwikozach koło Sandomierza. Kolejne jego stanowiska zostały odszukane w rezerwacie Skorocice koło Buska Zdroju, na korzeniach Stipa capillata oraz w Końskich, w parku miejskim, na siedlisku antropogenicznym, wśród traw Dactylis glomerata, Poa annua i P. trivialis. Interesującym jest stanowisko w Końskich, leżące poza północną granicą zasięgu Polyporus rhizophilus, poza obszarem występowania muraw kserotermicznych na Wyżynie Kielecko-Sandomierskiej. Występowanie tego gatunku grzyba na izolowanym stanowisku być może należy wiązać z globalnym zjawiskiem ocieplenia klimatu. Na ten problem zwracał już uwagę Kreisel (2006), który zalicza m.in. Polyporus rhizophilus do grupy grzybów ciepłolubnych rozszerzających swój areał na północ w kontekście aktualnych zmian klimatycznych.
    Źródło:
    Acta Mycologica; 2010, 45, 2
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Current state of irrigation in the Kherson steppe zone of Ukraine and in Kujawsko-Pomorskie province in Poland
    Aktualny stan nawodnień na obszarze stepu ukraińskiego i w województwie kujawsko-pomorskim w Polsce
    Autorzy:
    Reznik, V.S.
    Morozova, O.S.
    Morozov, O.V.
    Jaskulska, I.
    Kamieniarz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47284.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
    Tematy:
    agricultural land
    drainage
    irrigation
    Kherson region
    steppe zone
    Ukraine
    Kujawsko-Pomorskie voivodship
    Polska
    Opis:
    In various regions of the world you will find areas with low precipitation and high water deficits in soil in terms of field plant production. Examples of such areas are the Kherson region in Ukraine and the Kujawsko-Pomorskie province, especially the Kujawy region, in Poland. The Kakhovka Irrigation System in the Kherson region of Ukraine is the largest irrigation system in Europe. In 2015 it facilitated irrigating about 220 thousand ha. of farmland. Some limitation in the use of that system for enhancing soil productivity comes from the water quality. In the Kujawsko-Pomorskie province, Poland, which covers about 1 mln ha. of agricultural land, direct irrigation is performed on about 12 thousand ha. An improvement in soil moisture is seen through increasing water retention in the habitat by limiting water outflow.
    W różnych regionach świata występują obszary o małej ilości opadów i dużych niedoborach wody w glebie dla polowej produkcji roślinnej. Przykładem takich obszarów jest region Kherson na Ukrainie i województwo kujawsko-pomorskie, a zwłaszcza Kujawy – w Polsce. Na Ukrainie w regionie Kherson znajduje się największy system nawadniający w Europie – Kakhovka. W 2015 roku pozwolił on na nawodnienie około 220 tys. ha użytków rolnych. Pewnym ograniczeniem wykorzystania tego systemu do zwiększania produktywności gleb jest jakość wody. W województwie kujawsko-pomorskim w Polsce, obejmującym około 1 mln ha użytków rolnych, bezpośrednie nawadnianie wykonywane jest na powierzchni około 12 tys. ha. Poprawy uwilgotnienia gleb upatruje się w zwiększeniu retencji wody w siedlisku poprzez ograniczenie jej odpływu.
    Źródło:
    Acta Scientiarum Polonorum. Agricultura; 2016, 15, 4
    1644-0625
    Pojawia się w:
    Acta Scientiarum Polonorum. Agricultura
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rola koczowników Wielkiego Stepu w transferze idei pomiędzy Europą a Dalekim Wschodem
    Autorzy:
    Janik, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/915182.pdf
    Data publikacji:
    2015-12-01
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    China
    Korea
    Europe
    nomads of the Great Steppe
    transfer of ideas
    inventions
    Opis:
    This paper discusses the role of nomads in transfer of ideas between Western Eurasia and the Far East (understood as China and the Korean Peninsula). An ongoing contact between European and Central Asian cultures, constantly influenced by Chinese people, had started in the early Bronze Age and has continued until the Middle Ages, when the military power of Asiatic nomads decreased. This influence concerned not only inventions but also horse breeding, new vocabulary and cuisine. The majority of ideas spread only in one direction, from the Far East to Europe. The most famous of them were different types of weapon, such as a sword with annular pommel introduced in the Roman period or powder known from the 13th century, but also horse tack (for example stirrups) and dumplings. The influence of European culture on Asia is less visible, but it included chariots and probably the bronze treatment.
    Źródło:
    Studia Azjatystyczne; 2015, 1; 18-34
    2449-5433
    Pojawia się w:
    Studia Azjatystyczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Buryat-Mongols’ Way of Being and Their National Image of the World
    Autorzy:
    Boldonova, Irina
    Powiązania:
    https://bibliotekanauki.pl/articles/508728.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Slawistyki PAN
    Tematy:
    image of the world
    landscape
    nature
    ethnos
    nomads
    imaginative writing
    steppe
    water
    Opis:
    The Buryat-Mongols’ Way of Being and Their National Image of the WorldThe article focuses on the comparison of two main concepts in the national image of the world of the Buryat-Mongols as it applies to their way of being: the Man of the Steppes and the Man of Water and the Woods. The research is based on the theory of the well-known Russian scholar Georgiĭ Gachev, who connects types of landscape and natural environment to national images of the world. Dwelling around Lake Baikal on the one hand, and at flat steppe territories on the other hand is reflected in two alternative ways of living, as well as images of world and forms of imagination. The author of the article analyzes the two variants of identity, which have always been under the influence of certain geographical and climate factors, economic activities, as well as cultural and historic traditions of various Buryat-Mongol ethnic subgroups. Buriacko-mongolska droga życia i narodowy obraz świataArtykuł jest poświęcony komparatystycznej analizie dwóch podstawowych konceptów (hipostaz) buriacko-mongolskiego narodowego obrazu świata: człowiekowi stepów i człowiekowi wody i lasu. Analiza opiera się na teorii znanego rosyjskiego badacza Gieorgija Gaczewa, który postuluje istnienie wzajemnego oddziaływania między obrazami natury i narodowym obrazem świata. Życie wokół jeziora Bajkał z jednej strony i praca w bezkresnym stepie z drugiej znajdują wyraz w tych dwóch podstawowych formach istnienia, światopoglądach i formach wyobraźni. Autorka artykułu analizuje te dwie odmiany tożsamości, które podlegają wpływowi ze strony określonych czynników geograficznych i klimatycznych, aktywności ekonomicznej oraz historyczno-kulturowej tradycji różnych buriacko-mongolskich podgrup etnicznych.
    Źródło:
    Colloquia Humanistica; 2016, 5
    2081-6774
    2392-2419
    Pojawia się w:
    Colloquia Humanistica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in Climate and Bioclimatic Potential in the Steppe Zone of Ukraine
    Autorzy:
    Pichura, Vitalii
    Potravka, Larisa
    Vdovenko, Nataliia
    Biloshkurenko, Oleksandra
    Stratichuk, Natalia
    Baysha, Kira
    Powiązania:
    https://bibliotekanauki.pl/articles/2202306.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    climate
    air temperature
    precipitation
    bioclimatic potential
    retrospective analysis
    forecasting
    management
    Steppe zone
    Opis:
    To increase the level of management efficiency in the agricultural sector of the economy, it is necessary to substantiate environmental protection measures for the restoration and rational use of natural resources, to ensure the implementation of the sustainable environmental management principles, considering the spatio-temporal patterns of changes in climate and bioclimatic potential of the territory. Using the methods of multivariate statistics and time series forecasting, regularities of changes in climatic conditions in the Steppe zone of Ukraine for 1945–2019 were established, and a forecast of changes in the bioclimatic potential of the region until 2030 was made. It was established that during the research period the average annual air temperature increased by 3.5 °C. The amount of annual atmospheric precipitation varied within 186–778 mm with a variation level of 27.2%, in the last 20 years it was determined to decrease by 40% – to 500–300 mm. It has been proven that the inertial probability of repeating hot years is estimated at 0.58, and the possibility of repeating wet years at 0.46. As a result of forecasting, it was determined that if the trend of climatic conditions is maintained, there will be a stable trend-cyclic increase in the average annual air temperature by 0.06 °C per year and a decrease in the amount of annual precipitation by 62.0 mm per year. This resulted in an 18.7% increase in solar radiation on the soil surface and a 26.0% decrease in climatic losses on soil formation, which reduced the rate of the natural ability to reproduce soil fertility. In particular, the bioproductivity of plants decreased by 62.0%, and the probability of its further decrease by 20% is predicted. Over the past 20 years, the coefficient of natural humidification has decreased by 66.4%, and it is predicted to decrease by 20%. The obtained results confirm significant climatic changes and their negative manifestations on the reduction of bioclimatic potential in the Steppe zone of Ukraine, the deterioration of agricultural production conditions, the reduction of harvests, the self-regenerating and self-regulating function of steppe soils.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 12; 189--202
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changed species composition of naked amoebae in soils of forest-and-steppe zone of Ukraine
    Autorzy:
    Patsyuk, Marina
    Powiązania:
    https://bibliotekanauki.pl/articles/1386300.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    naked amoebae
    morphotypes
    soils
    forest-and-steppe
    Ukraine
    ameby nagie
    morfotypy
    gleba
    gradient step-las
    Ukraina
    Opis:
    Twenty-three species of naked amoebae of 3 classes, 11 families and 16 genera were found in soils of the forest-and-steppe zone of Ukraine. The most common species were Vahlkampfia sp. (2), Vahlkampfia sp. (1), D. mycophaga, H. vermiformis, T. striata, R. platypodia, M. cantabri-giensis, Vexillifera sp., Cochliopodium sp. (1), Acanthamoeba sp. (1). The species with least occurrence were Polychaos sp., T. similis, T. terricola, M. viridis, Rhizamoeba sp. (1). Highest species diversity of naked amoebae was recorded for soils of forests and shrubs, least for soils of meadows. All of the found amoebae species belong to 12 morphotypes.
    Dwadzieścia trzy gatunki nagich ameb z 3 klas, 11 rodzin i 16 rodzajów znaleziono w glebach strefy leśno-stepowej Ukrainy. Najczęściej występującymi gatunkami były Vahlkampfia sp. (2), Vahlkampfia sp. (1), D. mycophaga, H. vermiformis, T. striata, R. platypodia, M. cantabrigien-sis, Vexillifera sp., Cochliopodium sp. (1), Acanthamoeba sp. (1). Najwyższą różnorodność gatunkową nagich ameb odnotowano dla gleb lasów i krzewów, najmniejszą – dla gleb łąk. Wszystkie znalezione gatunki ameb należą do 12 morfotypów
    Źródło:
    Acta Biologica; 2019, 26; 57-64
    2450-8330
    2353-3013
    Pojawia się w:
    Acta Biologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geomodelling of Destruction of Soils of Ukrainian Steppe Due to Water Erosion
    Autorzy:
    Dudiak, Nataliia Vasylivna
    Pichura, Vitalii Ivanovich
    Potravka, Larisa Aleksandrovna
    Stratichuk, Natalia Vladimirovna
    Powiązania:
    https://bibliotekanauki.pl/articles/123599.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    water erosion
    RUSLE
    rainfall erosivity
    soil erodibility
    topography factor
    erosion index
    crops
    steppe zone
    GIS technologies
    geomodeling
    Opis:
    Spatial raster distribution models of the values of factors influencing the potential soil erosion hazard were created using GIS technologies. The erosion hazard was estimated using the modified RUSLE (Revised Universal Soil Loss Equation) model. The potential of annual soil loss of arable land was calculated. The spatial gradation of erosion violation of administrative and territorial units in the steppe zone of Ukraine was provided. About 32.7% of arable land that is subject to high erosion hazard was allocated. About 48 administrative and territorial units have a specific area less than 5% of erosion disturbed lands. They are characterized by a resistant type of agrolandscapes regarding the water-erosion processes. Most administrative and territorial units with high erosive-accumulative potential (the percentage of the area is 15% or more) are located in the western and southwestern parts of the steppe zone of Ukraine. The specific area of erosion hazardous lands reaches up to 32% in separate administrative-territorial units. The obtained results allow determining the need for a spatially discrete-distribution implementation of adaptive-landscape anti-erosion design with the elements of soil-protective agriculture.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 8; 192-198
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Accelerated steppe demutation (ecological restoration) as an effective method for restoration of the Crimean steppe landscapes
    Przyśpieszona demutacja stepów (przywrócenie ekologiczne) jako skuteczna metoda renowacji krymskich krajobrazów stepowych
    Autorzy:
    Wakhrusheva, L.
    Wakhrushev, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/88186.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Geograficzne
    Tematy:
    steppe
    landscape
    accelerated demutation
    ecological restoration
    Kerch peninsula
    step
    krajobraz
    przyśpieszona demutacja
    przywrócenie ekologiczne
    półwysep Kerczeński
    Opis:
    Accelerated steppe demutation (ecological restoration) is an effective method for restoration of the Crimean steppe landscapes. Critical state of steppe type of vegetation is analyzed, the slow rate of natural demutation is assessed, the urgency of measures for accelerated restoration of steppe habitats is argued for. Data on flora of steppe areas of the Kerch peninsula steppe used as the bank for seed material are provided, as well as the data of the vegetation at the areas chosen for accelerated restoration. The experiment on accelerated demutation has been conducted following the method by D.S. Dzybov with the author’s modifications.
    Artykuł omawia stan krytyczny roślinności naturalnej krymskich stepów, wskazuje na wolny przebieg naturalnej demutacji i uzasadnia konieczność prowadzenia prac przyśpieszających odradzanie się stepowych fitocenozów. Scharakteryzowano florę obszarów stepowych Półwyspu Kerczeńskiego służących za obszary źródłowe materiału nasiennego oraz stan roślinności w obrębie obszarów, wytypowanych do demutacji roślinności stepowej. Eksperymentalne prace demutacyjne wykonano wg zmodyfikowanej przez autorów metody D.S. Dzybowa.
    Źródło:
    Prace Komisji Krajobrazu Kulturowego; 2013, 20; 45-50
    1896-1460
    2391-5293
    Pojawia się w:
    Prace Komisji Krajobrazu Kulturowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Management of productivity of sunflower plants depending on terms of sowing and density of standing in arid conditions of the Right-bank Steppe of Ukraine
    Zarządzanie produktywnością słonecznika w zależności od terminu siewu i obsady roślin w suchych warunkach Prawobrzeżnego Stepu Ukrainy
    Autorzy:
    Pinkovskyi, H.
    Tanchyk, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/13925514.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    sunflower
    Helianthus annuus
    hybrid
    sowing date
    plant density
    moisture
    plant development
    productivity
    yield
    Right-bank Steppe of Ukraine
    Źródło:
    Agronomy Science; 2021, 76, 1; 21-38
    2544-4476
    2544-798X
    Pojawia się w:
    Agronomy Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The floristic differentiation of microhabitats within kurgans in the desert steppe zone of Southern Ukraine
    Autorzy:
    Sudnik-Wojcikowska, B
    Moysiyenko, I.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/58569.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    kurgan flora
    plant ecology
    floristic diversity
    Kherson Region
    botany
    Ukraine
    barrow flora
    Pontic desert steppe zone
    microhabitat
    flora
    Opis:
    Results of the studies on the floristic biodiversity of the kurgans in the Pontic desert steppe of the Black Sea Lowland (Kherson Region) are presented. Twenty-six of about 130 kurgans higher than 3 m, distributed over an area of approx. 1500 km2, were surveyed and the flora of 5 microhabitats within every kurgan (top, southern and northern slope, southern and northern foot) was examined. The richness of the kurgan flora is estimated at 305 species. Species of alien origin constituted 23% of the total flora, which indicates limited anthropogenic influence. Species of two classes, Festuco-Brometea and Stellarietea mediae were predominant, which also confirmed the semi-natural character of the kurgan flora. The lowest number of species was recorded on top, which was relatively rich in synanthropes, particularly therophytes (Stellarietea mediae). The north side was richer in species than the south side of the kurgans. Steppe species were the most stable and important component of the flora of the slopes (45-47% of the species represented the class Festuco-Brometea). The total flora of the foot contained more species and was more diversified than the flora of the slopes (although the mean number of species was similar in both habitats), but each species occurred at low frequency. There was a higher proportion of species which were introduced from the area surrounding the kurgans, e.g. weeds, halophytes, meadow species, as well as trees which are rarely found in the desert steppe zone. In spite of the small size of the kurgans, significant differences between the floristic composition of the various microhabitats were detected.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2008, 77, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geograficzna sukcesja religii wielkiego stepu
    The geographical succession of the religion in the Great Steppe
    Autorzy:
    Mikołajec, Jarosław
    Wendt, Jan A.
    Powiązania:
    https://bibliotekanauki.pl/articles/480424.pdf
    Data publikacji:
    2017-12-31
    Wydawca:
    Wydawnictwo Księży Werbistów Verbinum
    Tematy:
    buddyzm tybetański
    Jedwabny Szlak
    nestorianizm
    nomadyzm
    tengryzm
    Wielki Step
    Great Steppe
    Silk Road
    nomadism
    Tengrism
    Nestorianism
    Tibetan Buddhism
    Opis:
    Tematem artykułu jest przestrzenna ewolucja religii Wielkiego Stepu i Azji Środkowej. Jako perspektywę historyczną analizy badawczej przyjęto Jedwabny Szlak i XIII-wieczne imperium mongolskie. Obszary wnętrza Azji, przez które przebiegał Jedwabny Szlak, cechowała różnorodność religijna oraz tolerancja. Wraz z rozpadem imperium mongolskiego tradycyjne religie zostały stopniowo zastąpione religiami uniwersalnymi, które powstały poza badanym obszarem: islamem, buddyzmem tybetańskim, prawosławiem. W państwach związanych z Wielkim Stepem i tradycją koczowniczą pojawiają się współcześnie ruchy odnowy starych religii, takich jak tengryzm i zaratusztrianizm. Nie mają one jednak większego znaczenia politycznego.
    The subject of this article is the spatial evolution of the religion in the Great Steppe and the Central Asia. The research is focused on history of the Silk Road and the Mongol Empire in the 13th century. The interior of Asia was characterized by great religious diversity and tolerance. With the disintegration of the Mongol Empire, traditional religions have been gradually replaced by the universal ones that had emerged outside the studied area: Islam, Tibetan Buddhism and Orthodoxy. There has been a revival of some old religions like Tengrism and Zoroastrianism in states with some nomadic tradition around the former Silk Road, but they are not of much political significance.
    Źródło:
    Nurt SVD; 2017, 2; 388-402
    1233-9717
    Pojawia się w:
    Nurt SVD
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Уездный начальник как институт управления и аккультурации (на материалах юго-восточной окраины Российской империи 2-й половины XIX – начала XX века)
    Autorzy:
    Любичанковский, Сергей
    Powiązania:
    https://bibliotekanauki.pl/articles/632260.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    bureaucracy, Kazakh Steppe, frontier, acculturation, county commandant, uyezdnyi nachalnik, self-government
    бюрократия, казахская степь, окраина, аккультурация, уездный начальник, местное управление
    Opis:
    The article analyses, from the vantage point of the imperial policy of acculturation, the activity of the county commandant (uyezdnyi nachalnik), an administrative office which functioned in the Kazakh Steppe between 1868 and 1917. The article argues that since the inception of the office, the commandant became a pivotal figure in the administration of the south-eastern frontiers of Russia. The powers of the commandant were directly connected not only with the introduction of efficient local self-government, but also with the implementation of the policy of acculturation of local populations. The research is supported by the Russian National Fund (Project No 17-18-01008).
    В статье с позиций имперской политики аккультурации анализируется деятельность уездных начальников – специфического института власти, существовавшего в казахской степи с 1868 по 1917 гг. Показано, что с момента появления уездный начальник являлся ключевой фигурой в управлении степными областями юго-восточной окраины России. Его полномочия напрямую были связаны не только с налаживанием эффективного управления на местах, но и с реализацией политики аккультурации местного населения. Исследование выполнено при поддержке Российского научного фонда (проект № 17-18-01008).W artykule poddano analizie, z perspektywy imperialnej polityki akulturacji, działalność naczelników powiatu, czyli specyficznej instytucji do sprawowania władzy, która istniała w Stepie Kazachskim od 1868 r. do 1917 r. Wyjaśnione zostało, iż od chwili pojawienia się naczelnik powiatu stał się kluczową figurą w zarządzaniu obwodami stepowymi południowo-wschodnich peryferii Rosji. Jego pełnomocnictwa były bezpośrednio związane nie tylko z wprowadzaniem efektywnego samorządu, ale również z realizacją polityki akulturacji miejscowej ludności. Badania zrealizowano przy wsparciu Rosyjskiego Funduszu Naukowego (projekt nr 17-18-01008).
    Źródło:
    Res Historica; 2017, 44
    2082-6060
    Pojawia się w:
    Res Historica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat conditions of Sisymbrio-Stipetum capillate and Koelerio-Festucetum sulcatae steppe plant associations in the Ostoja Nidzianska specially protected area
    Autorzy:
    Misztal, A.
    Zarzycki, J.
    Bedla, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/61924.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    habitat condition
    Sisymbrio-Stipetum capillate association
    steppe plant
    Koelerio-Festucetum sulcatae association
    plant association
    Ostoja Nidzianska area
    protected area
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2015, IV/3
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Floral biology of Senecio macrophyllus M. Bieb. (Asteraceae), a rare Central European steppe plant
    Autorzy:
    Czarnecka, B.
    Denisow, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/57873.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    floral biology
    Senecio macrophyllus
    Compositae
    rare species
    insect visitation
    female phase
    male phase
    pollen production
    pollen viability
    Central Europe
    steppe plant
    Opis:
    Knowledge of the flowering phase and plant pollination ecology is very important for understanding the life history of long-lived perennials. In the case of rare species, the information may have implications for conservation practices. Our studies on flower morphology and blooming biology of the vulnerable plant Senecio macrophyllus M. BIEB. were conducted in situ (flowering, activity of insect visitors) in the largest population in SE Poland and in laboratory (light and scanning electron microscopy). The disc florets open diurnally with most intensive anthesis in the early afternoon and attract insect visitors with nectar and pollen. In highly protandrous disc florets, pollen viability decreases in time, whereas stigma receptivity increases. The upper part of the pistil forms a brush-like pollen presenter, covered with unicellular trichomes with chromoplasts. Pollen presentation lasts 4–11 hours per floret, and 8 days in a single head, the main function of which is to extend the availability of male gamets for reproduction. The number of florets per head, the head size, and the number of pollen grains produced per anther, and the pollen grain viability differed significantly between microsites. The finding indicates that, apart from the biotic factors, abiotic conditions may considerably influence generative reproduction of the species. In the study area, the principal visitors of S. macrophyllus flowers were Hymenoptera, with predominance of Apis mellifera (53.4% of visits). The remarkable share of butterflies (13.9%) recognized as the long-distance moving insects may improve the genetic variability of individuals within a fragmented population. A more detailed study is necessary to explain the role of insect visitors in effective pollination and in gene transfer between patches. The assessment of optimal conditions for the generative reproduction is fundamental for the in situ conservation of this rare species.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2014, 83, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Węgrzy a ludy tureckie przed Osmanami
    Hungarians and the Turkic people before Ottomans
    Autorzy:
    Grzesik, Ryszard
    Powiązania:
    https://bibliotekanauki.pl/articles/32315646.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    The Hungarians
    Turkic people
    Hungarian medieval chronicle writing
    the people of a Great Steppe
    Węgrzy
    ludy tureckie
    średniowieczne dziejopisarstwo węgierskie
    ludy Wielkiego Stepu
    Opis:
    Ugrofińscy Węgrzy nawiązali kontakt z ludami z tureckiej grupy językowej najpóźniej w dzisiejszej Baszkirii stanowiącej ich praojczyznę, legendarne Wielkie albo Wschodnie Węgry, o których pamiętali średniowieczni kronikarze. Ludy tureckie były mieszkańcami Wielkiego Stepu, stąd określenie Turków stało się synonimem koczowników. W źródłach bizantyńskich pod mianem Turków występują Węgrzy. Wraz z odłamem bułgarskich Onogurów, zapisanych w źródłach arabskich jako s.k.l, a znanych później jako Szeklerzy, w latach 30. IX w. osiedlili się w okolicach Morza Azowskiego, dostając się pod polityczną podległość Chazarów. O tym, że Węgrów powszechnie utożsamiano z Turkami, świadczy określenie ich przez słowiańskich sąsiadów mianem Onogurów, czyli *Ągrów, skąd wzięła się łacińska nazwa Hungari albo polska Węgrów. Jak się wydaje, węgierski związek plemienny wędrujący najpierw nad stepy meotydzkie, później zaś migrujący do Kotliny Karpackiej, był wieloetniczny z dużym udziałem ludności tureckojęzycznej (Szeklerzy, chazarscy Kabarzy), która stopniowo uległa madziaryzacji, pozostawiając Węgrom elementy świadomości historycznej (pamięć o Attyli, którą Szymon z Kézy erudycyjnie przekształcił w historię o pokrewieństwie huńsko-węgierskim). Jednak stworzone przez nich w Kotlinie Karpackiej państwo zachowało charakter wieloetniczny, co dopiero w czasie rozwoju nowożytnych nacjonalizmów zaczęło stwarzać problemy, które przyczyniły się do rozpadu państwa w 1918 r.
    The Finno-Ugric Hungarians made contact with people from the Turkish language group not later as in present-day Bashkiria. It was their original homeland, which was mentioned as the Great or Eastern Hungary by the medieval chroniclers. The Turkic people lived on the Great Steppe in that time, therefore the name of the Turks was a synonym of the nomads. However, in the Byzantine sources it were the Hungarians who were called The Turks. They settled in the region of the Azov Sea together with a branch of the Bulgarian Onogurs, noted in the Arabian sources as s.k.l, and later known as the Szeklers. They got under the political dependency of the Khazars. The Slavic name of the Hungarians *Ągri, from which the Latin name of the Hungari and the Polish Węgrzy was derived, descended from the name of the Onogurs. It seems that the Hungarian tribal commonwealth, which originally wandered to the Maeotidian Steppes and afterwards migrated to the Carpathian Basin, was multiethnical, with great participation of the Turkic population (such as the Szeklers and the Kabars). This people was Magyarized, but left elements of the own historical consciousness to the Hungarians, such as the memory of Attila, which was the basis of the eruditional story of the Hunnic-Hungarian identity by Simon of Kéza. Nevertheless, the Hungarian state preserved its multiethnical character, which generated problems only in the 19th century, a period of growth of the modern nationalisms, which resulted in the disintegration of the state in 1918.
    Źródło:
    Balcanica Posnaniensia Acta et studia; 2022, 29; 91-99
    0239-4278
    2450-3177
    Pojawia się w:
    Balcanica Posnaniensia Acta et studia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Environmental and economic effects of water and deflation destruction of steppe soil in Ukraine
    Autorzy:
    Dudiak, Nataliia
    Pichura, Vitalii
    Potravka, Larisa
    Stratichuk, Natalia
    Powiązania:
    https://bibliotekanauki.pl/articles/1841975.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    adaptive and landscape erosion control design
    environmental and economic consequences
    erodibility of soil
    geomodeling
    GIS-technologies
    steppe zone
    water erosion
    wind erosion
    Opis:
    Water and wind erosion are the most powerful factors in the decrease of soil fertility and a threat to food security. The study was conducted on the steppe zone in Ukraine (total area of 167.4 thous. km2), including agricultural land (131.6 thous. km2). At the first stage, the modeling of spatial differentiation of water and wind erosion manifestations was carried out to calculate losses of soil (Mg∙ha–1) and to determine their degradation. At the second stage, soil-climatic bonitet of zonal soils (points) is carried out to determine their natural fertility (Mg∙ha–1). At the third stage, the spatial adjustment of the natural soil fertility to the negative effect of erosion was carried out. This made it possible to calculate crop losses and total financial losses due to water and wind erosion. The integrated spatial modeling showed that about 68.7% of arable land was constantly affected by the combined erosion, in particular the area of low eroded arable land (16.8%), and medium and highly eroded land (22.1%). Due to erodibility of soil, about 23.3% of agricultural land transferred from the category of high and medium quality to medium, low and very low quality, which is caused by the loss of soil fertility of up to 70%, crop losses of up to 1.93 Mg∙ha–1 ha–1 and eduction of agricultural income up to 390 USD∙ha–1. In the steppe region under the research, gross crop losses from erosion were up to 15.11 thous. Mg∙ha–1 (3.05 mln USD). In order to protect soils, improve fertility and increase crop yields in the steppe zone in Ukraine, the following measures were suggested: adaptive and landscape erosion control design with elements of conservation farming in accordance with the spatial differentiation of soil quality and extent of water erosion deflation danger.
    Źródło:
    Journal of Water and Land Development; 2021, 50; 10-26
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seslerio uliginosae-Scorzoneretum purpureae (Festuco-Brometea class) in the Nida Basin (Malopolska Upland) after 90 years
    Autorzy:
    Towpasz, K.
    Stachurska-Swakon, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/56885.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Seslerio uliginosae-Scorzoneretum purpureae community
    Festuco-Brometea class
    Nida basin
    Malopolska Upland
    Sesleria uliginosa
    gypsum grassland
    xerothermic grassland
    species diversity
    succession
    steppe reserve
    ecological indicator
    Opis:
    Seslerio uliginosae-Scorzoneretum purpureae is the only xerothermic community of the Festuco-Brometea class, where a rare species known as Sesleria uliginosa occurs in Poland. A couple of sites hosting this association in the Nida Basin were described in the 1920s and 1950s. All these stands are now situated in the areas designated as xerothermic nature reserves. The study aimed at describing the present-day characteristics of this rare association, the most likely being endemic in Poland, as well as the changes that have occurred in it. The species diversity and the contribution of xerothermic plants have decreased significantly in terms of their number and cover coefficient. Some of the diagnostic species of the association have become extremely rare. Sesleria uliginosa is the only one without visible changes in their dominant position in the community. Mosses, that have played a significant role before, were among the vanished species. At the same time, an increase in number and cover of mesophilous meadows species was observed. Mesophilous grasses belong to the group of species growing in significance in the phytocoenoses. The observed changes in species composition were reflected in a statistically significant increase of nitrogen indicator value. The slow process of succession observed in the Seslerio-Scorzoneretum purpureae could be attributed to the lack of appropriate land use, e.g. mowing and grazing that have been ceased in the nature reserves.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Euroazjatycka późna starożytność czy Jedwabne Szlaki? Polityczne, kulturowe i ekonomiczne konstrukty pojęciowe w studiach nad historią i kulturą Orientu
    Eurasian Late Antiquity or the Silk Roads? Political, Cultural, and Economic Conceptual Constructs in the Study of Oriental History and Culture
    Евразийская поздняя античность или Шёлковые пути? Политические, культурные и экономические концептуальные конструкты в исследованиях истории и культуры Востока
    Autorzy:
    Sińczak, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/52791051.pdf
    Data publikacji:
    2024-03-31
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    Eurasia
    Silk Roads
    Iran
    China
    Roman Empire
    India
    Arsacids
    Sassanids
    Han
    nomads
    Huns
    Great Steppe
    Евразия
    Шёлковые пути
    Иран
    Китай
    Римская империя
    Индия
    Аршакиды
    Сасаниды
    Хань
    кочевники
    Гунны
    Великая степь
    Opis:
    In contemporary historiography, there is a growing interest in interactions between nomadic peoples and the empires of sedentary peoples in antiquity, with particular emphasis on late antiquity. Differences in the perception of nomadic communities’ impact on the economy cause a conceptual confusion. It is largely due to differences in the perception of the influence that nomadic communities had in shaping the functioning of trade routes leading from one part of Eurasia to another. This article organises and indicates the origin of concepts, such as the Silk Road, the cultural complex of central Eurasia, the first story, and Eurasian Late Antiquity from specific researchers. At the same time, the author compares and presents perceiving trade routes and the influence of nomads on sedentary peoples in two opposing concepts: a metanarrative of the nomad history as the main catalyst for the continent’s economic development and presenting the history of the Silk Road and nomads as part of the multi-vector interaction of various communities in Eurasia during the late antiquity, at the same time indicating a certain advantage of the latter.
    В современной историографии растёт интерес к теме взаимодействия кочевых народов и империй оседлых народов в древности с особым акцентом на позднюю античность. Различия в восприятии влияния кочевых сообществ на экономику и культуру региона вызывают некоторую концептуальную путаницу. В большой мере это обусловлено различиями в восприятии влияния кочевых сообществ на формирование процесса функционирования торговых путей, ведущих из одной части Евразии в другую. В данной статье систематизируется и указывается происхождение от конкретных исследователей таких понятий, как Шёлковые пути, культурный комплекс Центральной Евразии, первоистория и поздняя евразийская античность. Одновременно автор сопоставляет и представляет концепции восприятия торговых путей и влияния кочевников на оседлые народы в двух противоположных концепциях: концепции метанарратива истории кочевников как основного катализатора экономического развития континента и концепции представления истории Шёлковых путей и кочевников как части многовекторного влияния различных сообществ Евразии в период поздней античности, одновременно указывая на некоторое преимущество второй из них.
    Źródło:
    Studia Orientalne; 2024, 1(29); 30-42
    2299-1999
    Pojawia się w:
    Studia Orientalne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rozważania o praojczyźnie Słowian
    Autorzy:
    Jasiński, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1897213.pdf
    Data publikacji:
    2020-06-30
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    allochtoniści
    autochtoniści
    zapożyczenia irańskie w języku prasłowiańskim
    praojczyzna Słowian
    Scytowie
    Sarmaci
    Goci
    lasostep nadczarnomorski
    allochthonists
    autochthonists
    Iranian borrowings in the Slavic language
    the
    Slavic homeland
    Scythians
    Sarmatians
    Goths
    the Black Sea forest steppe
    Opis:
    The Slavs’ homeland was in the Black Sea forest steppe. The Slavs neighboured the Iranian peoples from the south and the Balts from the north. The characteristic features of the Slavs’ culture, mainly material culture, were shaped in the third and fourth centuries AD, when the dominance of the Sarmatians over the Slavs ended as a consequence when the Goths ravaged the coasts of the Black See.
    Źródło:
    Historia Slavorum Occidentis; 2020, 2 (25); 11-90
    2084-1213
    Pojawia się w:
    Historia Slavorum Occidentis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Poziom chlorofilu a i b w liściach krzewów podszytowych w grabowo-dębowych lasach lasostepu Ukrainy Zachodniej
    The content of chlorophyll a and chlorophyll b in leaves of undergrowth species in hornbeam-oak forest stands of the forest-steppe zone in Western Ukraine
    Autorzy:
    Zaika, V.
    Bondarenko, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292298.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewostany grabowo-debowe
    podszyt
    krzewy
    liscie
    chlorofil a
    chlorofil b
    poziom chlorofilu
    lasostep
    Ukraina Zachodnia
    shrubs
    plastid pigments
    chlorophyll a
    chlorophyll b
    hornbeam-oak forest stands
    forest-steppe zone of western
    Ukraine
    Opis:
    In this study, the biosynthesis of the plastid pigments chlorophyll a and b was examined for the most common shrubs in hornbeam-oak forest stands of the Western forest-steppe zone of Ukraine. The characteristics of the pigments’ biosynthesis were determined in terms of plant species, vegetation period and growth conditions (under canopy cover and out in the open). The gathered data on the changes of the pigment complex with respect to the examined variables confirms the sensitivity of plastid pigment biosynthesis to environmental factors.
    Źródło:
    Leśne Prace Badawcze; 2018, 79, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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