CEEOL - Browse Subjects Result

We kindly inform you that, as long as the subject affiliation of our 300.000+ articles is in progress, you might get unsufficient or no results on your third level or second level search. In this case, please broaden your search criteria.

Značaj Nacionalnog parka Sjeverni Velebit u zaštiti prirode s obzirom na gljive

Author(s): Neven Matočec,Ivana Kušan,Dušan Mrvoš / Language(s): Croatian Issue: 1/2019

The region of Northern Velebit National Park is characterised by a high diversity of fungi. Around 750 species have been recorded to date, of which 20 are strictly protected while 37 are very rare on the global scale and currently without conservation status in Croatia. Latest intensive mycological research has resulted in the publication of one genus and as many as five species new to science. In this paper are discussed fungal species of high bioindicator values for the quality of the system of nature protection, presented in three groups: biotrophic species linked to endemic species – endemobionts, (2) ecologically stenovalent species linked to the faeces of animals and(3) ecologically stenovalent species linked to old forests and primeval forests. All three groups are under the strong influence of locally specific climatic characteristics. According to the analysed data, it can be said that the Northern Velebit National Park has been successfully designed with regard to the protection of fungi. Due to its diversity and specificity, the Northern Velebit National Park can be designated as an Important Fungus Area (IFA).

More...

Nacionalni park Sjeverni Velebit kao vrhunsko edukativno-turističko središte

Author(s): Dalibor Paar / Language(s): Croatian Issue: 1/2019

Northern Velebit is a Croatian pearl which in the context of education in the 21st century, nature protection, confronting the endangerment of nature and climatic changes could become a significant European centre. Besides the evaluation, protection of nature and contribution to education from the nursery to lifelong learning, the development in this direction opens new workplaces and raises the quality of life of the local community. The Northern Velebit National Park is a location which in synergy with the infrastructure and logistic elements in Krasno, Otočac and Senj, along with the support of European funds, can develop on contemporary educational concepts of the 21st century. Especially the underground of Velebit, in other words, its numerous speleological phenomena, represent an excellent example of why it is necessary to connect the geological, biological and climatic aspects of the protected location.The high level of unexplored karst phenomena of the Northern Velebit National Parkand the potentials for new discoveries open the possibilities of generating dynamic educational contents which can be supplemented through continuous collaboration with experts. The discovery of something new until then unknown, unusual and unexpected is something which with the corresponding presentation techniques can awaken interest in the natural sciences in pupils and students, in other words, in accordance with the recommendations of the European Commission awaken the interest in the education of science and STEM regions.

More...

5.90 €

Preview

Sowjetunion - „Das Jahrhundertprojekt“

Author(s): Author Not Specified / Language(s): German Issue: 21/1985

Wenn eines Tages in der Arktis das Eis schmilzt und in den Alpen die Gletscher — dann werden dies Auswirkungen eines der monumentalsten Eingriffe in die Natur sein: die Sowjetunion plant die Umleitung von riesigen Wassermassen aus Sibirien in die Trockenregionen Zentralasiens. Der folgende Beitrag über die innersowjetischen Diskussionen zu diesem „Jahrhundertprojekt“ wurde uns als Vorabdruck von dem französischen Reisemagazin autrement zur Verfügung gestellt.

More...

Precision of the Nebra Disc in Astronomical and Geometric Aspect

Author(s): Piotr Banasik,Władysław Góral / Language(s): English Issue: 20/2021

The astronomical knowledge on the disc has been coded on two planes: horizontal and meridian. The range of sunrise and sunset directions during the year has been described on the horizontal plane. In turn, on the meridian (vertical) plane, the range of changes in the horizontal height and declination of the Sun in the upper culmination during the year and the Moon in its 18.61-year cycle were described. The relationships between the latitude of the place of observation, the horizontal height of the celestial body and its declination were described by means of geometric constructions. The presented article is a continuation of two publications [1] and [2], which describe the decryption of the Nebra disc. These publications were based on the interpretation of the results of angular measurements, made using a protractor with a scale of 0.5 degrees, without the use of a computer. The presented publication is based on a digital disc image obtained by means of its digitization. The obtained data was used for further calculations based on analytical geometry and graphic programs. This allowed to obtain results in a linear measure with a precision of less than 1 mm.

More...

Springtime Air Temperature variations in South-Western Romania (1961-2023).

Author(s): Andreea Floriana Marinică / Language(s): English Issue: 2/2023

Over time, the warming and cooling periods of the climate on Earth followed each other with great irregularity and caused significant variations in air temperature, but allowed the existence of life and especially of the human species. They are determined by the variability of the cosmic factors that essentially determine the Earth's climate. In the following paper I’ve analyzed the variation of the air temperature in Oltenia during the springs for the interval 1961-2023. A number of other works have analyzed climate variability in this part of Romania. The warm 1945-1955 period was followed by a gradual cooling of the weather, and in the 1961-1998 period (39 years), there was only one spring in which all three months were warmer than normal (1983). Then the frequency of warmer-than-normal months and springs gradually increased starting in 1999, peaking in the 2007-2020 range. Several daily temperature climate records were broken, but seasonal records were not. At the same time, in the analyzed interval, in the polar areas the rate of melting of the ice increased a lot and exceptional thermal maxima were recorded in the cold season. Late spring frosts also occurred in warm springs and did significant damage. The random variability of air temperature determined by the random variability of cosmic factors is the main cause of these thermal variations. The work is useful to all those interested in climate variability in Oltenia.

More...

The impact of severe convective phenomena in Sălaj and Maramureş counties. Case study: Supercell on May 28th 2019.

Author(s): SERGIU-DANIEL PAVEL,Traian Tudose / Language(s): English Issue: 2/2023

The main purpose of the study is to analyze the conditions and impact of severe weather phenomena in Sălaj and Maramureș counties. A supercell storm that crossed a significant part of the mentioned area in the 28th May 2019’s afternoon, also affecting Zalău and Baia Mare was chosen as a case study through its impact and severe threats that occurred, leaving many damages over the area. The analyzed phenomena are convective, generated by Cumulonimbus clouds with a considerable vertical extent. Synoptic and mesoscale conditions were determined using the specific methods of investigation (charts of sea level pressure, geopotential height, temperature and humidity, atmospheric soundings, different stability indices, vertical wind shear, infrared and visible satellite images and radar images of convective storms). The main findings are: synoptic conditions were determined by low values of atmospheric pressure at the surface and by the atmospheric depressions, while in the middle troposphere, an atmospheric trough was present; mesoscale conditions presented: elevated values of Convective Available Potential Energy, negative values of Lifted Index, and strong wind shear in the 0-3 km layer.

More...

ZRÓŻNICOWANIE TEMPERATURY POWIETRZA WEWNĄTRZ PARKU MIEJSKIEGO NA PRZYKŁADZIE PARKU LOTNIKÓW POLSKICH W KRAKOWIE

Author(s): Katarzyna Wrona / Language(s): Polish Issue: 113/2023

Differentiation of air temperature within urban green areas is an issue relatively rarely discussed in the literature.The aim of this study was to partially fill this research gap by taking our own measurements of the local climate inside the PolishAviators’ Park (Park Lotników Polskich) in Cracow. Measurement data regarding air temperature was collected at five pointslocated inside the park and one in the park’s immediate vicinity. The sample period comprised of 18 days with high radiationand insolation and 12 days with a significant degree of cloud cover and weak wind, from May to September 2020. The resultsshow that the interior of the park, where denser tree cover is present, differs in terms of microclimate from the exteriorof the park, where low vegetation prevails. On sunny days, the air temperature differences were estimated to be on average1 °C between the reference site (outside the park) and high vegetation and about 0.5 °C between the reference site and lowvegetation. During the day, a greater thermal difference was noted between the park and its surroundings, while at night the con-trasts became more pronounced within the park itself due to the intense cooling of the exposed grassy areas.

More...

A CHIRONOMIDAE-BASED RECONSTRUCTION OF THE SAALIAN- -EEMIAN TRANSITION (MIS 6a–MIS 5e) IN A PALAEOLAKE FROM THE “PARCHLINY 2016” PROFILE, CENTRAL POLAND

Author(s): Mateusz Płóciennik,SYLWIA ŁUKAWSKA,EWA JANOWSKA,Dariusz Krzyszkowski,Dariusz Wieczorek,Lucyna Wachecka-Kotkowska / Language(s): English Issue: 113/2023

In the end of Saalian Glaciation (Wartanian Stadial, MIS 6a) there formed many glacial depressions, melt-out kettleholes and subglacial channels in central Poland’s ice-marginal zone. In these landforms, there developed a lakeland that existedto the Early Weichselian (5d-a). Following excavation in 2016 on the eastern wall of the Szczerców field, lacustrine depositswere recognised in the Parchliny 2016 profile. A previous multi-proxy study of the Parchliny 2016 profile concerning a recon-struction of the palaeolake included analyses of pollen, plant macrofossils, wood macrofossils, diatoms, cladocerans, ostracodsand molluscs. The present work presents the Chironomidae analysis for the above-mentioned section. The collected subfossilscould be identified from the keys presenting modern Palaearctic fauna. The Chironomidae indicate a temperate climate inthe region and favourable, meso/eutrophic conditions in the palaeolake during the Late Saalian (MIS 6a). The changes in sub-fossil numbers reveal that the Zeifen interstadial fells at 24.38–24.23 m core depth and the subsequent Kattegat stadial at 24.18––23.83 m, but head capsule count is too low for quantitative temperature estimations. From the Eemian (MIS 5e) transition,they decline in the sediment and are represented only by two head capsules at the 23.33 m core depth below the ground surface.The increase in summer temperature, trophic status and stratification of the lake may have caused an oxygen depletion thateliminated sensitive taxa. However, no species are observed that are resistant to eutrophication and anoxia replacing sensitiveones in the assemblages. Sediment desiccation and compaction may have caused the decomposition of Chironomidae subfossilsin the deposits from the Eemian interglacial, so their apparent decline in the ecosystem may be misleading.

More...

PALAEOLITHIC SITES OF PODILLYA (UKRAINE) AS GEOHERITAGE OBJECTS: KEY FEATURES AND CURRENT CHALLENGES

Author(s): ANASTASIIA SHEVTSOVA / Language(s): English Issue: 113/2023

The article provides a comprehensive analysis of Palaeolithic sites as geoheritage objects. It also examines in detailthe state of their preservation and the main problems related to the process of organising the protection of Palaeolithic heritagemonuments in Ukraine (using the example of Palaeolithic sites in the Podillya region). The study focuses on the distinctivefeatures of these geoheritage objects, emphasising their natural significance and unique historical features.Based on a detailed analysis of natural conditions, as well as legal aspects, this article presents ideas and best practicesthat can significantly change the Ukrainian approach to the preservation and management of Palaeolithic heritage. It highlightsthe importance of Palaeolithic sites as natural and cultural monuments that deserve our utmost care and attention.

More...

ZAPIS ZMIAN ŚRODOWISKOWYCH W OSADACH ZAGŁĘBIENIA KRASOWEGO ŁYKAWE DOŁY NA WYŻYNIE MAŁOPOLSKIEJ

Author(s): Dorota Brzozowicz / Language(s): Polish Issue: 113/2023

The paper describes the results of physicochemical analysis and pollen analysis of the Łykawe Doły site locatedin a drainless depression with karst genesis. The site is located directly adjacent to the western border of the Małopolska Upland,where under a thin layer of Quaternary sediments there are carbonate rocks undergoing karstification. The aim of the work wasto reconstruct changes in the plant cover in the immediate vicinity of the depression and the changes taking place in the depres-sion itself. The dating and palynological analysis showed that the depression of covered karst began to fill with biogenic sedi-ments in the Subboreal period, and its development also took place in the Sub-Atlantic period. Throughout the entire time thatthe depression was filling with sediments, a peatbog existed within it.

More...

OSADY BIOGENICZNE TORFOWISK REGIONU ŁÓDZKIEGO JAKO MATERIAŁ DO BADAŃ KOPALNYCH CLADOCERA

Author(s): Marta Rudna,Jacek Forysiak / Language(s): Polish Issue: 113/2023

This paper shows the origin and geomorphological diversity of peatlands in the Łódź region and the variable lith-ology of the sediments filling their depressions. The suitability of biogenic sediments deposited in such forms for paleoeco-logical analyzes was assessed. A review of previous research highlights analyzes of cladoceran fossil remains. The contentindicates the scope of such analyzes over the last dozen or so years and their importance for the reconstruction of paleogeo-graphic changes in the Late Vistulian and Holocene. Other important goals of the synthesis are to indicate the importanceof high-resolution studies and to assess the validity of their performance.

More...

FEEDING OR FIGHTING

Author(s): Geoff Hiscock / Language(s): English Issue: 3/2013

The author looks at how enough food production and water usage for everyone is attainable. Nevertheless, he writes that further conflict awaits if no progress is made. First, he points out the areas most likely to face food shortages and those affected by drought, floods, disease and pests, at the same time noting that the world produces enough food to feed its current population, the real problem being the lack of a workable mechanism to get this food to where it is most needed. In his opinion, storage and distribution are the two big challenges, compounded by conflict and poor governance in certain countries. In the end, he mentions the efforts made by international organisations to put these issues on their list of priorities, increase sustainable agriculture, develop food markets, boost farmers’ welfare and improve access to food for vulnerable groups.

More...

INDIA’S NEXUS BETWEEN RESOURCES, CLIMATE CHANGE AND STABILITY

Author(s): Michael KUGELMAN / Language(s): English Issue: 4/2012

Few regions are more environmentally insecure than South Asia. The region faces rising sea levels and regularly experiences coastal flooding – of particular concern in a region with heavily populated and arable land-rich coastal areas. Additionally, it is highly vulnerable to glacial melt. The Western Himalayas, which provide water supplies to much of South Asia, have experienced some of the most rapid melt in the world. Natural resource deficiencies are stark as well.

More...

О развитии арктических исследований через призму наукометрии

Author(s): Alexander I. Terekhov / Language(s): Russian Issue: 2/2024

There are still few Russian studies on quantitative measurements of Arctic science that could help create a holistic picture of developing research, compare the contributions of individual countries, and assess Russia’s scientific potential. The performed scientometric analysis partly fills this gap, relying on multiple sources: bibliographic databases Web of Science Core Collection and DIMENSIONS; grant databases of Russia, the USA and Germany. The analysis revealed: 1) the fast growth of Arctic publications in the period 1980–2020 with an average annual rate of 5 % after 2008, which is similar to some high-tech fields; 2) increasing globalisation of research performed by scientists from more than 100 countries; 3) changes in Arctic research interests, including long-term trends (socialisation of research, decreasing share of works on geology and physical geography) and fast new trends (increasing share of publications on economics and technologies of industry 4.0). According to calculations, Russia is third among countries in terms of the number of Arctic publications in the Web of Science Core Collection database, significantly contributing to highly cited papers; however, this contribution may be negatively affected by a decline in the share of Russian publications with international co-authorship. Thanks to its traditionally strong position, the Russian Academy of Sciences remains the leading centre of global Arctic research; within the country, it promotes Arctic science through its regional branches and institutes, as well as supports the intensification of university studies. The abstracts of selected 2023 Arctic grants reflect the topics of some future publications; for example, their analysis showed different attitudes towards the role of the climate factor in Arctic research: excessive focus of projects supported by foreign funds and a more balanced approach in Russian projects.

More...

UNIFORMS ARE GETTING GREENER

Author(s): David SHUKMAN / Language(s): English Issue: 3/2011

The author recounts how climate has become part of defence planning, writing that compared to winning a war, saving the planet used to be too woolly a concept to merit attention, too vague to factor into planning, but this is not the case today, as the potential implications of a shifting climate are gradually working their way onto the security agenda. In this respect, he presents a series of facts highlighting the potential implications of a shifting climate and of warming, as well as the steps taken by the international community as it struggles to make progress in tackling the problem. The author concludes by mentioning a stark warning belonging to Professor Sir David King: climate change could ultimately prove more dangerous than terrorism.

More...

Zintegrowana ocena stanu hydrochemicznego doliny rzecznej w obszarze podmiejskim na przykładzie Strugi Dobieszkowskiej (Młynówki) (gm. Stryków)

Author(s): Maciej Ziułkiewicz,Anna Fortuniak,Jan Górowski,Mateusz Ajzert,Kacper Kaźmierczak,Kacper Lik,Natalia Mytkowska,Tomasz Ślisarczyk / Language(s): Polish Issue: 22/2023

The work presents the results of waters research in Struga Dobieszkowska (Młynówka) river valley with a lot of natural groundwater outflows, which is located in the area of the Łódź Hills. The research work covered, apart from spring waters, the waters of the stream and its hyporheic zone. They were carried out in one day, thanks to which an integrated view of the current hydrochemical stage was obtained in the area, where anthropogenic pressure has been ongoing for several decades related to the progressive urbanization of villages in suburban area of the Łódź city. The research date was preceded by a long rainless period, hence it was assumed that the investigated environments would represent only underground water supply. The mixing of river and groundwater (represented by springs) under the streambed of the Struga Dobieszkowska was assessed in order to hydrochemically verify the existence of a hyporheic zone there, as this was indicated by the results of vertical hydraulic gradient (VHG) measurements. A general deterioration of the hydrochemical condition of water was demonstrated as a result of the inflow of pollutants, including through the hyporheic zone. Comparison of the three tested aquatic environments lead to identify which of chemical compounds that significantly differentiate them.

More...

Wpływ wydm śródlądowych na ukształtowanie miejskich terenów zieleni na przykładzie wybranych miast środkowej Polski

Author(s): Elżbieta Kobojek / Language(s): Polish Issue: 22/2023

Green areas are important elements of the urban spatial structure. Some geomorphological forms had a great influence on the location and character of these areas, e.g. floodplains, peat bogs, steep slopes. Within the reach of many cities in the lowland part of Poland, there are numerous inland dunes, which are distinguished by their sandy structure, dryness of the ground and varied relief. The article presents the influence of inland dunes on the formation of green areas in cities. Inland dunes in the studied cities are covered mainly by pine forests. Depending on their location in the urban space, they perform various functions, e.g. for walking, rest or recreation. Dunes also affect the arrangement of green areas in cities. Most often they form a spot and wedge system. Pine forests in the dunes are not as biologically rich as deciduous vegetation shaped by man in city parks, but they are an important element of the urban natural system. They do not require intensive care treatments (economic aspect), including watering, which is very important in the period of climate change. Additionally, the vegetation is adapted to abiotic conditions, i.e. a specific ecosystem is developed. This is consistent with the pro-ecological trend of accepting and creating natural landscapes in the city, in order to increase the resilience of the urban environment and improve the quality of life of people and other species.

More...

Wahania poziomu wody w wybranych jeziorach Niecki Nidziańskiej

Author(s): Artur Zieliński,Michał Stachura,Krzysztof Jarzyna,Piotr Zagórski,Dariusz Wieczorek / Language(s): Polish Issue: 22/2023

The rapid development of civilization significantly intensifies the anthropopressure and modifies the environment. On the other hand, the extending periods of droughts result in water deficiency and fluctuations and reduction of the level of surface water and groundwater. The aim of the conducted study has been to assess the extent of such changes in the region of the district city of Staszów located in the south-eastern part of Świętokrzyskie Voivodeship. The fluctuations in water level in lakes, especially their amplitude, frequency and duration, constitute important factors affecting the ecosytems in questions. Moreover, lakes serve as a great indicator of climate changes and their water levels reflect the abundance of water resources in the regions that such reservoirs are located in. This elaboration has presented changes in water levels of 12 lakes in the Staszów region within the period of 2011–2020, whereby continuous observations were conducted from March 2011 to December 2020. The study revealed a difference in water level amplitudes from 16 cm (Duży Staw) to 127 cm (Ciemne lake) and a general drop in the water level.The said lakes were created in form of reproduced karst. In the analyzed group of reservoirs, the study identified: an increase (one lake), a reduction (8 lakes) and lack of an evident tendency for changes in water level (3 lakes). The highest and constant increase in water level was exhibited by the Ciemne lake (+87 cm) while the most profound reduction – by the Przedpole lake (−90 cm) and the Odrodzone lake (−89 cm). Various characteristics of water level changes were identified even in case of reservoirs that were located very close to each other. The collected results in scope of water level fluctuation and their differentiation in lakes indicate that local factors have a greater impact than climate factors. The local factors with a vivid effect included: height above sea level of the location, the nature of the reservoir (whether it is closed, connected to other reservoirs or serves as a pass-through reservoir) and beaver activity. What is more, it was established that the size and characteristic of the basin, both in case of surface water and groundwater, as well as the parameters of lake basins are of crucial importance.

More...

Przydatność biotestu Phytotoxkit do badania zanieczyszczenia gleb metalami ciężkimi

Author(s): Wojciech Tołoczko,Anna Wyrwicka-Drewniak,Robert Spała / Language(s): Polish Issue: 22/2023

An experiment was carried out to test the resistance of four soils to contamination with heavy metals. The sampling sites were located approximately 40 m from the S8 expressway. It was assumed that the expressway would be a potential source of soil contamination with heavy metals in the future. One meadow soil and three arable soils were tested. The research attempted to verify the degrees of soil contamination with heavy metals determined by the IUNG. To determine soil resistance, the Phytotoxkit biotest was used. It was investigated how soil solutions with different contents of heavy metal cations (zinc, cadmium, nickel, copper and lead) affect the growth of cress in the germination phase. Based on measurements of the length of cress roots after 3 days, clear growth inhibition was found caused by various concentrations of heavy metals in the soil. The granulometric composition, soil reaction and organic carbon content were also examined. The grain size of all tested soils was similar and can be described as clayey sands. The soil from grassland had the highest organic carbon content and alkaline reaction. This is probably why it showed the greatest resistance to heavy metal contamination. The Phytotoxkit test showed that the inhibition of cress growth was much lower than in the case of soils from arable land. The high content of organic carbon and the favorable alkaline reaction of the soil contributed to this. Lower resistance was obtained in the study of soils from arable fields, which were characterized by the lowest organic carbon content and slightly acidic reaction. The research results confirmed the great usefulness of the Phytotoxkit biotest for assessing soil contamination with heavy metals.

More...

Wpływ tężni solankowych na właściwości gleb miasta Ciechocinek

Author(s): Wojciech Tołoczko,Aleksander Szmidt,Rafał Fijałkowski / Language(s): Polish Issue: 22/2023

Soils in Ciechocinek were tested. Research points have been designated in the city and its surroundings. The basic physical and chemical properties of soils were examined, including soil salinity. After the conducted research, it can be concluded that saline soils are located only in the area limited by brine graduation towers No. I, II, III and in the close zone surrounding the graduation towers. Saline soil covers an area of 28 hectares, and the measured value was 2.35 [g (NaCl) ∙ dm−3] of soil, which, after taking into account the bulk density of 1.86 kg ∙ dm−3 of soil, is approximately 0.437% NaCl. According to FAO recommendations, this area can be classified as medium-saline soil, salinity class 2. The remaining soils, apart from brine graduation towers, did not show significant salinity.

More...