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Tytuł:
Grubość pokrywy lodowej wybranych jezior o genezie eolicznej, krasowej i rzecznej w województwie świętokrzyskim
Ice cover thickness of selected aeolic, karst and river lakes in Świętokrzyskie Voivodeship
Autorzy:
Zieliński, Artur
Choiński, Adam
Powiązania:
https://bibliotekanauki.pl/articles/43348466.pdf
Data publikacji:
2021-12-15
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
aeolian lakes
karst lakes
river lakes
the thickness of the ice cover
Opis:
The research covered three genetic groups of lakes (karst, aeolian, and riverine) which occur in Świętokrzyskie Voivodeship. Depending on the specific group, the lakes have different morphometric parameters of the lake basin and the water catchment area as well as physical and chemical properties of the water. In winter 2021, after a wave of severe frost, the thickness of the ice was measured on a selected number of lakes. The results of the tests indicate a diverse thickness of the ice caps. Karst lakes had the thickest ice caps. Riverine and aeolian lakes, on the other hand, featured similar thickness of the ice. However, it was noticed that in the case of riverine lakes, the ice cap on shores with prevailing reed was thinner than in the central parts of the lake.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2021, 12 (72); 191-201
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Subfossil Chydorid taxa and assemblages from lake sediments in Poland and Finland with special reference to climate
Autorzy:
Sarmaja-Korjonen, Kaarina
Szeroczyńska, Krystyna
Gąsiorowski, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2027446.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
subfossil Cladocera
chydorids
Finnish lakes
Polish lakes
climate
redundancy analysis
Opis:
In this study we compared chydorid cladoceran (Chydoridae) taxa and assemblages from sediments of 6 Polish and 6 sq Finnish lakes and investigated if the difference in climate of these two countries can be detected in the cladoceran data. The data were analysed in terms of I) average relative proportions of chydorid taxa during the history of each lake and by 2) redundancy analysis (RDA) to explain the present effect of environmental variables (altitude, area, maximum depth, mean annual temperature, mean summer temperature and length of the growing season) on species abundances. The redundancy analysis (RDA) enabled us to distinguish groups of taxa I) with a high thermal preference 2) associated with small, cold-water lakes and 3) associated with shallow lakes. There are clear differences in the dominant chydorid taxa and in the relative proportions of many other chydorid taxa between the two countries since the end of the last glaciation. Although these differences first of all appear to reflect the climatic difference, the influence of many other environmental factors, controlling the living conditions of particular chydorids have been raised and considered. Further studies with larger data are needed before the role of climate can be reliably separated from other elements of environment.
Źródło:
Studia Quaternaria; 2003; 25-34
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Project of Coagulant Dispenser in Pulverization Aerator With Wind Drive
Autorzy:
Osuch, E.
Osuch, A.
Podsiadłowski, S.
Piechnik, L.
Chwirot, D.
Powiązania:
https://bibliotekanauki.pl/articles/125228.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
eutrophication of lakes
lakes restoration
inactivation of phosphates
pulverization aerator
Opis:
Lakes are one of most important freshwater ecosystems, playing significant role in functioning of nature and human economy. Swarzędzkie Lake is good example of ecosystem, which in last half-century was exposed to the influence of strong anthropopressure. Direct inflow of sewage with large number of biogens coming to the lake with water of inflows caused distinct disturbance of its functioning. In autumn 2011 restoration bagan on Swarzędzkie Lake for reduction of lake trophy and improvement of water quality. For achieving better and quicker effect, simultaneously combination of some methods was applied, among others method of oxygenation of over-bottom water with help of pulverization aerator and method of precise inactivation of phosphorus in water depths. Characterization and analysis of improved coagulant dispenser applying active substance only during work of pulverization aerator is the aim of this thesis. Principle of dispenser work, its structure and location in pulverization aerator were explained. It was stated that introduction to water a factor initiating process of phosphorus inactivation causes significant reduction of mineral phosphorus in water and size of coagulant dose correlates with intensity of work of pulverization aerator with wind drive.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 192-198
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka warunków batymetrycznych i termicznych kompleksu jezior na przedpolu Lodowca Aavatsmarka, Svalbard
Bathymetric and thermal conditions of lakes located in the forefield of Aavatsmark Glacier, Svalbard
Autorzy:
Sobota, I.
Nowak, M.
Powiązania:
https://bibliotekanauki.pl/articles/260993.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
termika jezior
batymetria jeziora
Svalbard
thermal conditions of lakes
lakes bathymetry
Opis:
W sezonach letnich 2009 i 2010 roku przeprowadzono badania warunków batymetrycznych i termicznych kompleksu jezior na przedpolu Lodowca Aavatsmarka. Określono czasowe i przestrzenne zróżnicowanie temperatury powierzchniowej warstwy wody oraz uwarstwienie termiczne w pionach pomiarowych zlokalizowanych w wybranych punktach jezior, a także ich związek z wybranymi warunkami meteorologicznymi. Stwierdzono rzadko spotykane uwarstwienie termiczne masy wodnej jeziora. Sporządzono również plan batymetryczny akwenu i określono jego wybrane cechy morfometryczne.
In summer 2009 and 2010 the measurements of thermal conditions of the lakes located in the forefield of Aavatsmark Glacier, Oscar II Land, NW Spitsbergen, have been conducted. The object of research was the complex of a three moraine lakes: Upper, Middle and Lower. So far the bathymetry and selected elements of thermal and salinity conditions of those lakes was studied (Pietrucień and Skowron 1983; Małachowski and Sobota 2002, Sobota 2007). The results showed distinct differences in depth of lakes, which (beside physic characteristics and dynamic of water circulation) are the most important feature forming thermal conditions of water. The authors took regular measurements of the thermal stratification and temperature of a surface water layer (measured 0.4 m under water level). The area of the whole complex takes approximately 86 000 m2, with mean depth 2.6 m. These lakes are linked with the sea, so specific thermal and salinity conditions were observed. The heat flow in those reservoirs is mainly formed and dependent on characteristic salt and fresh water layers which has been shaped by water exchange between lakes and sea. Inflow of strongly saline sea water causing specific salinity stratification. In consequence the water masses with a different ability of heat absorption and cumulation are forming. Surface inflow is active only in a snowmelt period. Rainfall doesn't take important role in lakes alimentation. There is a need of further researches to define a detailed water circulation conditions.
Źródło:
Problemy Klimatologii Polarnej; 2011, 21; 187-196
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ODTWORZENIE WARUNKÓW WODN YCH OSUSZONYCH JEZIOR W POLSCE – WYBRANE PRZYKŁADY
Autorzy:
Ptak, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/943779.pdf
Data publikacji:
2018
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
lakes
land reclamation
retention
Opis:
In the past, human intervention in water relations focused mainly on draining wetlands and lakes. In general, this was aimed at increasing the area of agricultural land or creating new settlement areas. In the case of lakes, the consequence of such actions was to reduce their level and in many cases to completely dry them. The maintenance of appropriate, assumed environmental conditions requires, in the case of drainage systems, maintaining the high efficiency of the drainage system, which is time- and cost-intensive. Neglecting such an approach, or intentional actions in this respect may lead to the restoration (to a different spatial extent) of drained lakes. The examples presented in the paper indicate that this process is quite common. In the context of the need to expand the water retention of the country, a detailed search of such reservoirs should be carried out and their renaturalization should be considered.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2018, 9(69); 183-192
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena stanu jakości wód jeziora Łomno
Assessment of water quality of lake Łomno
Autorzy:
Osuch, A.
Rybacki, P.
Osuch, E.
Adamski, M.
Buchwald, T.
Staszak, Ż.
Powiązania:
https://bibliotekanauki.pl/articles/401722.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
jezioro
rekultywacja jezior
eutrofizacja jezior
lake
reclamation lakes
eutrophication of lakes
Opis:
Jezioro Łomno znajduje się w województwie wielkopolskim, w powiecie poznańskim, w gminie Murowana Goślina, w miejscowości Wojnówko, w odległości 15 km od centrum Poznania i 8 km od centrum Murowanej Gośliny. Jest to niewielki rynnowo- wytopiskowy zbiornik o powierzchni 19 ha, w najgłębszym miejscu jego głębokość wynosi 6,7 m. Zbiornik pełni przede wszystkim funkcje łowieckie, jak również rekreacyjne, gdzie wyznaczone jest miejsce kąpieliskowe. Nieopodal linii brzegowej znajduje się szereg domków letniskowych Badania polegały na sprawdzeniu podstawowych parametrów fizyczno-chemicznych wody w jeziorze. Pomiary na jeziorze zostały przeprowadzone w okresie wiosennoletnim 2013 roku, za pomocą specjalistycznej aparatury pomiarowej, takiej jak sonda tlenowa, konduktometr, elektroda pH, fotometr i krążek Secchiego. Uzyskane wyniki badań zostały przedstawione graficznie w dalszej części pracy, a szeroka analiza wyników pozwoliła na opracowanie i sformułowanie wniosków.
Lake Łomno is located in the Wielkopolska province, Poznan district, municipality of Murowana Goślina in Wojnówko, 15 km from Poznan city center and 8 km from the center of Murowana Goślina respectively. It is a small gutter reservoir with an area of 19 ha, the deepest place of its depth is 6.7 m. The tank functions primarily as fishing and leisure facility and is a designated bathing place. Near the coastline there are a number of cottages consisted of verifying basic physical and chemical parameters of water in the lake. The measurements were carried out on the lake during spring and summer 2013, using specialized measuring equipment such as oxygen sensor, conductivity, pH electrode, the photometer and Secchi disk. The research results are presented graphically in the later part of the work, as a broad analysis of the results allowed us to design and formulate conclusions.
Źródło:
Inżynieria Ekologiczna; 2016, 46; 24-30
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Governance of publicly owned lakes in Poland – the current state and underlying conditions
Autorzy:
Turkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/95620.pdf
Data publikacji:
2017
Wydawca:
Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:
zarządzanie jeziorami
prawa własności do jezior
governance of lakes
ownership rights to lakes
Opis:
Lakes are water resources which perform unique ecological, recreational and landscape-related functions. Sustaining and enhancing this multi-functional character of lakes while preserving the high quality of lake waters should be the principal objective of lake management. In Poland, we still lack a management strategy that would take into consideration the specific nature of lakes. Audits of the Supreme Audit Office (NIK) have demonstrated that the performance of basic tasks stipulated by law and pertaining to the governance of lakes by Regional Water Management Boards and by Marshalls of Voivodships leaves much to be desired. Irregularities and cases of negligence include, inter alia, the widespread practice of barring the public access to the lakes, lawless construction, and the lack of a current water cadastre. In the draft of a new Water Law, public administration is once again entrusted with the entire governance of inland waters. In the draft of a new Water Law, public administration is once again entrusted with the entire governance of inland waters. Meanwhile, the experience of other countries suggests that decentralization and participation of other interested parties, including community and non-government organizations, makes lake management more efficient.
Źródło:
Ekonomia i Środowisko; 2017, 1; 93-102
0867-8898
Pojawia się w:
Ekonomia i Środowisko
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Batymetria jezior meteorytowych w rezerwacie „Meteoryt Morasko”
Bathymetry of crater lakes in the “Meteoryt Morasko” reserve
Autorzy:
Choiński, Adam
Ptak, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1033077.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
Morasko
crater
impact
lakes
meteorite
Opis:
The paper presents results of bathymetric measurements performed on three crater lakes located in the “Meteoryt Morasko” reserve in west Poland. The maximum depth of the largest of the analysed lakes (1695 m2) was determined to amount to 2.6 m. The parameters of the lake (surface area, depth, etc.) are largely determined by a ditch dug through the crater in the north-western part of the lake, affecting the maximum water volume accumulated in the lake.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2017, 8; 23-29
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An investigation of water level fluctuations in Polish lakes in various phases of the winter North Atlantic Oscillation
Autorzy:
Wrzesiński, D.
Ptak, M.
Powiązania:
https://bibliotekanauki.pl/articles/184338.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
water stages
teleconnection
NAO
lakes
Polska
Opis:
The North Atlantic Oscillation is a macroscale type of circulation determining climate and hydrological conditions in Europe. The paper presents water level fluctuations in 19 Polish lakes in various phases of NAO of the winter season in the years 1976-2010. Correlations of the winter NAO index with monthly, seasonal, maximum, and minimum water stages, and annual water level amplitudes in lakes were calculated. Approximately 20% of the performed tests showed statistical significance. Lakes were recorded where the correlations were significant in a major part of the year, as well as lakes showing no significant correlations in any month. Deviations of mean water stages in the positive and negative phase of NAO from mean water stages were calculated for each of the lakes. This permitted classifying the lakes into two groups by Ward’s method based on deviations of water stages in the positive and negative phase of NAODJFM from average values. This resulted in the designation of 4 and 5 typological classes of lakes, respectively. Deviations of water stages in lakes in various phases of NAODJFM from mean values were determined to even exceed 20 cm. The study results can find practical applications in reference to water retention. In view of the observed environmental changes, it is possible that the hydrotechnical infrastructure on lakes will have to be developed in the future. Such a situation will permit the precise control of water level fluctuations for the purpose of the optimal adaptation of lakes for economic purposes.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 2; 151-163
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The geoecological model for small tundra lakes, Spitsbergen
Autorzy:
Zwoliński, Z.
Rachlewicz, G.
Mazurek, M.
Paluszkiewicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/295158.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
geoecological model
small tundra lakes
Spitsbergen
Źródło:
Landform Analysis; 2007, 5; 113-118
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on concentration of some heavy metals and strontium 90Sr and cesium 137Cs isotopes in bottom sediments of selected lakes of Łęczyńsko-Włodawskie Pojezierze
Autorzy:
Solecki, J.
Reszka, M.
Chibowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/148507.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
strontium
cesium
lakes
sedimentes
haevy metals
Opis:
Research on concentration of radionuclides and heavy metals in bottom sediments of three different lakes is presented. The lakes were located in the vicinity of the National Park in the Lublin (Poland) region. Bottom sediments were collected from various depths. In all studied sediment, sample concentration of 90Sr and 137Cs isotopes ranged from 2.07 11.76 to 5.67 67.7 Bq/kg, respectively. The amount of radioactive 137Cs increased with depth of the lake. The same dependence for 90Sr was not observed. The level of radioactivity originated from natural isotopes was much lower in bottom sediments than that measured in related soils. Most of radioactivity in bottom sediments comes from anthropogenic isotopes.
Źródło:
Nukleonika; 2006, 51,suppl.2; 33-37
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrography, hydrochemistry and composition of sapropel of Shatsk Lakes
Autorzy:
Khilchevskyi, Valentyn
Ilyin, Leonid
Pasichnyk, Mykhailo
Zabokrytska, Myroslava
Ilyina, Olga
Powiązania:
https://bibliotekanauki.pl/articles/2174355.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
bottom sediments
lake
sapropel
Shatsk Lakes
Opis:
The purpose of the study presented in the article is to implement modern hydrographic characteristics of freshwater of the Shatsk Lakes (28 lakes in Volyn Polissya, Ukraine) by typing water bodies according to the requirements of the EU Water Framework Directive, assessment of the chemical composition of lake water and bottom sediments (sapropel), determination of the opportunity for their recreational use in the special status of the district as a national park. Despite the presence of the two large lakes (Svityaz - 26.2 km2 and Pulemetske - 15.5 km2), very small lakes with a water surface area of less than 0.5 km2 (64%) are dominating in the Shatsk group. Mineralisation of calcium-hydrocarbonate lake waters is 115-303 mg∙dm-3 and calcium-sulphate aqueous extract of sapropel is - 318-1451 mg∙dm-3. Using a Piper diagram, it was found that there is genetic homogeneity between surface and groundwater, indicating a significant share of groundwater in the water supply of lakes. There are eight species of sapropel deposits in 19 lakes of the district. A wide range of chemical composition and physical and mechanical properties of sapropel deposits of the Shatsk Lakes allow us to consider them as an important resource for agriculture and industry. We found that sapropel from Shatsk Lakes meets the requirements for therapeutic mud and can be used for therapeutic and health purposes.
Źródło:
Journal of Water and Land Development; 2022, 54; 184--193
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time-Line Based Aerial Analysis for Impact of Rampant Urbanization on Lakes of Bengaluru (India)
Autorzy:
Gopinath, Rajesh
Cu, Akarsh
Me, Muralidhar
Powiązania:
https://bibliotekanauki.pl/articles/27314712.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
lakes of Bengaluru
urbanization
satellite analysis
lakes
jeziora Bangalore
urbanizacja
analiza satelitarna
jeziora
krajobraz naturalny
Opis:
Urbanization is introducing drastic transitions in the natural landscapes such as open areas, green spaces and water bodies of each and every city. The present study undertakes time line aerial analysis for 2 decades from 2000 to 2019 to comprehend the effect of urbanization upon the Lakes of Bengaluru. Once famed as the city of 1000 Lakes; its wetlands now pose serious concern in terms of quantity, quality, aesthetics, epidemics and as life support system for native aquatic species. The outcome for the research was arrived at by analyzing the reduction of physical/geographical area of forty-two prominent Lakes by analyzing Satellite imageries, with inferential observations and deductions. Bellandur and Varthur Lakes rank among the most critically effected, having lost 9,87,411 sq.m. & 619416 sq.m. and 1,33,205 sq.m. and 4,19,310 sq.m. owing to scrupulous encroachment & eutrophication respectively.
Źródło:
Civil and Environmental Engineering Reports; 2022, 32, 1; 1--18
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The origins of the Plitvice Lakes (Croatia)
Autorzy:
Markowska, Joanna
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2029393.pdf
Data publikacji:
2004-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
origin
Plitvice
lakes
tectonic
barriers
sedra
Opis:
The question of the origin of the Plitvice Lakes, situated in the Dynarics Mountains, in central Croatia is still unexplained. Not so many place in a literature is dedicated to this issue. It is said that the Plitvice Lakes are of tectonic or karst origin. In the article the complicated origin of the lakes is shown. To define their origin the author proposes the term “tectonic - barriered”. As a result of tectonical movements which occured on the researched area, many tectonic faults were formed. At the bottom of the lakes barriers of sedra - rock of biogenic origin started to grow. The process of sedra creating has been lasting till today and as a result a very complicated, permanently transformed lakes system has formed. At present, below the lowest located lake of the Plitvice Lakes new lakes appear, which demonstrate about existing and growing submarine barriers.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2004, 11; 93-99
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes of Hydrographic Network of Uściwierskie Lowering According to Cartografic Materials
Autorzy:
Grzywna, A.
Nieścioruk, K.
Powiązania:
https://bibliotekanauki.pl/articles/123898.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
lakes
river
ditches
early maps
drainage
Opis:
The paper analyses a hydrographic network and its changes in the area of Uściwierskie Lowering in last 180 years. The Uściwierskie Lowering was originally the second largest closed drainage depression in Łęczna-Włodawa Lakeland, with an area of 45.83 km2. The increasing anthropopression mainly by melioration works led to significant changes. The authors use early and modern maps to analyse the quantitative aspect of these changes. The technical issues of georeferencing maps in the Geographic Information System (GIS) software are addressed first. In case of some maps, georectification happened to be problematic. 19th century topographic maps (as the Quartermaster map) were of much lower geometric quality compared to early 20th century and modern maps. Also the poor settlement in the area resulted in lack of ground control points useful in case of georectification. Using such data can, however, be justified by the fact that little is known about changes in the hydrographic network of the region during the 19th century, while the period of last 50–100 years is examined with more details. The results show the numeric values illustrating quantitative changes in the area. They are also a step forward towards understanding the degree of anthropogenic transformation of a drainage network. It is vital as these changes influence the whole ecosystem – lowering the water level shapes habitats and change the landscape.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 148-153
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Initial time of two high altitude crater lakes (nevado de toluca, central mexico) recorded in subfossil cladocera
Autorzy:
Szeroczyńska, Krystyna
Zawisza, Edyta
Wojewódka, Marta
Powiązania:
https://bibliotekanauki.pl/articles/2025798.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
crater lakes
Sol and Luna Lakes
palaeolimnological studies
Cladocera and chemical components
Nevado de Toluca
Central Mexico
Opis:
The ob jec tive of this study was the rec og ni tion and re con struc tion of the or i gin of two high al ti tude lakes and the ecolog i cal con di tions of their early ex is tence based on subfossil Cladocera and chem i cal anal y ses. The study fo cused on the old est lac us trine sed i ments from Lake Sol and Lake Luna, lo cated in the crater of Vol cano Nevado de Toluca (Cen tral Mex ico). The Nevado de Toluca crater de vel oped ap prox i mately 12 ka yr BP. Ac cord ing to the lit er a ture, the vol cano was last ac tive ap prox i mately 3.3 ka yr BP, and the lakes de vel oped af ter that erup tion. The re mains of nine Cladocera spe cies were found in the bot tom sed i ments of both lakes. The most dom i nant taxa were two en demic lit toral spe cies: Alona manueli and Iliocryptus nevadensis. The to tal fre quency of Cladocera spec i mens in both of the sed iment cores was very low. No Cladocera re mains were re corded in the sed i ment layer at depths be tween 123–103 m from Lake Luna. The re sults of the lithological and geo chem i cal anal y ses showed that this sed i ment layer was com posed of allochthonous ma te rial, prob a bly orig i nat ing from slid down from the vol ca nic cone. This was sug gested by the con - tent of sil ica (up to 13%), iron (up to 12%), and ti ta nium (up to 4%). The Cladocera re mains re corded in the bot tom sed i - ments sug gested that both res er voirs de vel oped as fresh wa ter lakes at the be gin ning of the sed i men ta tion. The cal i brated ra dio car bon dates ob tained for the bot tom sam ples were 4040 to 3990 yr BP for Lake Luna (129 cm) and 4485 to 4485 yr BP for Lake Sol (89 cm). The ob tained ages were older than the dates of the last erup tion, which oc curred ap prox i mately 3300 yr BP. This re sult was likely re lated to the type of ra dio car bon dated ma te ri als (charcoals).
Źródło:
Studia Quaternaria; 2015, 32; 109-116
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeżywalność bakterii Salmonella Enteritidis w wodach powierzchniowych
Survivability of Bacteria Salmonella Enteritidis in Surface Water
Autorzy:
Szejniuk, B.
Budzińska, K.
Jurek, A.
Traczykowski, A.
Berleć, K.
Michalska, M.
Piątkowski, J. K.
Powiązania:
https://bibliotekanauki.pl/articles/1819116.pdf
Data publikacji:
2013
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
przeżywalność bakterii
Salmonella Enteritidis
Escherichia coli
lakes
Opis:
The most frequent cause of salmonelloses are food poisonings. However, many studies prove the occurrence and possibility of survival of rods of the genus Salmonella in lakes. The bacteria are often isolated from water sources, which act as a bacterial reservoir. Rods of Salmonella are constantly released to the environment, which results in infections of people and animals. In comparison with other microorganisms, bacteria of the genus Salmonella are characterized by a high survival rate in water environments, particularly in waters of highly eutrophicated lakes. Temperature, the shortage of nutrients, osmotic stress and light has the most negative effect on their survival. Due to its common accessibility, water is an environment which plays an essential role in spread of diseases. The aim of this study was to estimate the effect of selected temperatures on the survival rate of bacilli Salmonella Enteritidis, and the dynamics of quantitative changes of the bacteria in time in bathing waters used for recreation, tested under laboratory conditions. As well as to determine the dynamic of quantitative changes of the bacteria in time under laboratory conditions. The samples for the study were collected from a lake in the Bydgoszcz district. In the conducted experiment it was indicated that Salmonella Enteritidis survived longer in water at 4°C (51 days), as compared with 20°C (39 days). In the present study the elimination rate of bacteria population, according to the analysis of regression, amounted to 0.16 log daily at 4°C, whereas at 20°C it assumed a value of 0.15 log daily. Consequently, it may be concluded that a lower temperature has a more stabilizing effect on rods of the genus Salmonella.
Źródło:
Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 3; 2738-2749
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zlodzenie wybranych jezior w krainie wielkich jezior mazurskich w latach 2006–2010
Ice cover of selected lakes in the masurian lakeland in the years 2006–2010
Autorzy:
Wira, J.
Ptak, M.
Powiązania:
https://bibliotekanauki.pl/articles/407502.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczo-Rozwojowy Inżynierii Lądowej i Wodnej Euroexbud
Tematy:
zlodzenie
jeziora
Polska
ice cover
lakes
Polska
Opis:
W pracy przedstawiono charakterystykę warunków zlodzenia jeziora Jagodne, Śniardwy i Roś w latach 2006–2010. W oparciu o obserwacje prowadzone przez Instytut Meteorologii i Gospodarki Wodnej stwierdzono, że parametry zlodzenia (termin początku i końca zjawisk lodowych, termin początku i końca pokrywy lodowej, grubość pokrywy lodowej) tych jezior są mało zróżnicowane względem siebie. Jest to wynikiem bliskiej ich lokalizacji a w związku z tym takich samych panujących warunków klimatycznych. Pewnym odstępstwem jest wcześniejsza pojawianie się zjawisk lodowych na jeziorze Śniardwy w stosunku do dwóch pozostałych jezior, co należy wiązać z morfometrią tego akwenu (mniejsza głębokość średnia), która decyduje o wcześniejszym wychładzaniu mas wody i pojawianiu się w niej lodu.
The work presents the characteristics of the ice cover conditions of Lake Jagodne, Lake Śniardwy and Lake Roś in the years 2006–2010. On the basis of observations conducted by Institute of Meteorology and Water Management it was ascertained that ice cover parameters (the beginning and end of ice phenomena, the beginning and end of ice cap formation, the thickness of the ice cap) of these lakes do not differ much in relation to one another. This results from the fact that the lakes are close to one another so the climate conditions are also the same. The only difference is the earlier time of the ice cap formation on Lake Śniardwy, which is due to the lake morphometry ( its smaller average depth) which determines earlier water cooling and, consequently, earlier appearance of ice.
Źródło:
Zeszyty Naukowe. Inżynieria Lądowa i Wodna w Kształtowaniu Środowiska; 2015, 12; 38-47
2082-6702
Pojawia się w:
Zeszyty Naukowe. Inżynieria Lądowa i Wodna w Kształtowaniu Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zanik jezior okolic Gardei (Pojezierze Iławskie)
The disappearance of lakes near Gardeja (Iława lake district)
Autorzy:
Ptak, M.
Małecka, I.
Powiązania:
https://bibliotekanauki.pl/articles/407635.pdf
Data publikacji:
2014
Wydawca:
Instytut Badawczo-Rozwojowy Inżynierii Lądowej i Wodnej Euroexbud
Tematy:
jeziora
antropopresja
pojezierze iławskie
lakes
human impact
Opis:
Jeziora należą do jednych z najmniej trwałych elementów przyrody nieożywionej w środowisku. Od momentu powstania podlegają ciągłej ewolucji, która zmierza ostatecznie do ich zaniku. Tempo i skala tego procesu są zróżnicowane i zależą od splotu czynników naturalnych (np. fluktuacje klimatyczne) jak i sztucznych (antropopresja). W pracy w oparciu o kartograficzną metodę badania zmian środowiska przedstawiono sytuację dotycząca sześciu jezior na Pojezierzu Iławskim, które w okresie kilkudziesięciu lat przestały całkowicie istnieć. Za fakt ten odpowiedzialne są głównie przeprowadzone prace melioracyjne, które spowodowały obniżenie poziomu wody a tym samym zanik jezior.
Lakes are one of the least durable inanimate elements of the natural environment. From the moment of their inception, they are constantly evolving, which ultimately leads to their disappearance. The pace and scale of this process vary depending on the combination of natural (e.g. climate fluctuations) and artificial (anthropogenic impact) factors. Based on the cartographic method of examining environmental change, the paper describes the situation of six lakes in the Iława Lake District, which, over decades, ceased to exist completely. This was mainly caused by land improvement works, which resulted in the lowering of the water level, which, in turn, led to the disappearance of the lakes.
Źródło:
Zeszyty Naukowe. Inżynieria Lądowa i Wodna w Kształtowaniu Środowiska; 2014, 10; 43-50
2082-6702
Pojawia się w:
Zeszyty Naukowe. Inżynieria Lądowa i Wodna w Kształtowaniu Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeohydrological aspect of transformation of lakes into peat bogs during Middle Holocene on the basis of Cladocera analysis in the northern Poland
Autorzy:
Szeroczyńska, Krystyna
Gąsiorowski, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2027409.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Cladocera remains
fossil lakes
Middle Holocene
palaeohydrology
Opis:
Cladocera are a group of water animals, which are strongly dependent on environmental conditions. The ratio of planktonie to littoral Cladocera species is a widely used tool in palaeohydrological reconstruction of lakes' water level changes. Interpretation of this ratio is still unclear and requires further evidence. The simplest indicator of water level, which can be used in tracing lake-peat bog transitions, is the presence or absence of Cladocera and the character of its disappearance. In general, two models of Cladocera decline are observed. The first model is characterized by a very abrupt disappearance of all species, whereas the second one. with an intermediate stage, is characterized by domination of specific species. These two models are related to different types of terminal history of the water body. Even after a total disappearance of water in the peat bogs, there were episodes of some pioneer cladoceran species presence, correlated with periods of humid climate.
Źródło:
Studia Quaternaria; 2002; 55-60
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reclamation of Polish lignite open pits by flooding
Autorzy:
Szczepiński, J.
Fiszer, J.
Stachowicz, Z.
Szczepanik, P.
Powiązania:
https://bibliotekanauki.pl/articles/2062979.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pit lakes
lignite open pit
hydrogeological conditions
Opis:
This paper presents reclamation of post-mining lignite open pits by flooding in Poland. Besides, it provides some data on hydrogeological conditions of Polish lignite mines. Reclamation by flooding is presently used in post-mining voids in the Adamów Lignite Mine and the Konin Lignite Mine, and it is anticipated to be used in the future, in the case of large-space abandoned open pits in the Turów Lignite Mine and the Bełchatów Lignite Mine, whose volume will exceed one billion cubic meters. Pit lakes in Poland are formed deliberately as a planned part of the after-use of lignite surface mine voids and they are used as wildlife habitats, fisheries, water sports venues or other forms of amenity. In each case the mine voids are flooded by natural groundwater inflow, water pumped out from dewatering system and water from rivers and courses. In the existing and abandoned Polish lignite open pits there are favorable conditions in terms of water quality formation, so the water in pit lakes is of a good quality. However, the studies indicate a potential threat to the water quality in pit lakes, where they are recharged only by groundwater. Therefore, additional recharge the void with surface water or water pumped out from dewatering wells reduces the probable pit lakes deterioration.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2010, 441 Hydrogeologia z. 10; 167--174
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Funkcja i rola wysp jeziornych wedle przekazów pisanych dotyczących środkowoeuropejskich Słowian i Bałtów we wczesnym średniowieczu
The function and role of lake isles as described in sources on central european Slavs and the Balts in the early middle ages
Autorzy:
Tietz, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/15809741.pdf
Data publikacji:
2022-10-28
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
isles
lakes
strongholds
settlement
pagan temples
bridges
Opis:
The text revolves around the use of lake isles by Western Slavs and Western Balts in the North European Plain in the early Middle Ages. The main goal of this article is to collect, discuss and analyse early medieval written sources that provide information about the locations’ forms and functions among old communities. This process has resulted in a picture of the various uses of isles by Slavs (and, to a small extent, by the Balts) which may serve as the starting point for an analysis of archaeological sources.
Źródło:
Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim; 2022, 63; 277-311
0080-9993
Pojawia się w:
Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany powierzchni i zarastanie jezior w Polsce
Surface changes and lake overgrowth in Poland
Autorzy:
Choiński, Adam
Skowron, Rajmund
Powiązania:
https://bibliotekanauki.pl/articles/43347984.pdf
Data publikacji:
2022-05-22
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
lakes
Northern Poland
indicator of plant overgrowth
Opis:
The paper presents changes in the surface area and overgrowing of the largest Polish lakes (> 500 ha). It has been established (on the basis of 4 analyzed time sequences) that over the last 80 years there has been a gradual reduction of the lake area. At the same time, the area occupied by emerged vegetation has increased. This is confirmed by the lake overgrowth rate and the shoreline overgrowth rate.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2021, 12 (72); 125-140
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental aspects of molecular composition of humic acids isolated from lake sediments of a permafrost-affected area of the Arctic
Autorzy:
Guzeva, Alina V.
Krylova, Ekaterina A.
Fedorova, Irina V.
Powiązania:
https://bibliotekanauki.pl/articles/16538448.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Arctic
Siberia
Lena Delta lakes
humic substances
permafrost
Opis:
Humic substances are ubiquitous in terrestrial and aquatic ecosystems. Humic acids (HAs) actively interact with organic and inorganic components of lake sediments. This interaction depends on the molecular structure and elemental composition of HAs. The presented research focuses on the investigation of the composition and molecular structure of humic acids isolated from lakes located in the Lena Delta in the Russian Arctic. The findings of the research are needed to estimate the potential capacity of humic acids to bind microelements, particularly toxic metals, in stable compounds. Surface sediment samples (0–10 cm) were collected from 8 lakes by Van Veen grab during the summer period of the “Expedition LENA 2019”. We analyzed elemental composition of the HAs samples. The results showed that the studied HAs of lake sediments are characterized by low nitrogen content and prevalence of aliphatic fragments in their molecular structure. Furthermore, it was found that the studied humic acids are less mature, showing mineralization processes dominant over humification, and have relatively low potential to complexation compared with soils of the Lena Delta as well as lake sediments of territories with more boreal climate conditions.
Źródło:
Polish Polar Research; 2021, 42, 3; 173-191
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of proglacial lake shore displacement in Estonia
Autorzy:
Vassiljev, J.
Saarse, L.
Miidel, A.
Powiązania:
https://bibliotekanauki.pl/articles/2058906.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
proglacial lakes
shore displacement
modelling
point kriging
isobases
Opis:
The Late Glacial shoreline database compiled for Estonia covers 149 sites on the proglacial lakes A1 (Voose) and A2 (Kemba). Eighty-two sites were used in further simulations. Point kriging interpolation with a linear trend approach was applied to create interpolated surfaces of water levels for checking the spatial correctness of data. The sites with altitudes visually not matching with sites nearby were discarded, as well as those with residuals of more than 1 mand 0.7 mrespectively. The final surfaces were analysed geostatistically by simulating isobases, direction of tilting, and shoreline gradient. The simulated isobases suggest that both proglacial lakes A1 and A2 were connected with the glacial lake in the Lake Peipsi basin. The interpolated surface aspect shows that the direction of tilting varies between 320° and 340°. The surface gradient of lake A1 is highest in the NW and SE parts of the study area (50 and 25 cm km-1, respectively), and that of lake A2 is highest in the NWand SE parts (40 and 20 cm km-1, respectively). Using the modelling data, the shoreline correlation between the two proglacial lakes has been revised.
Źródło:
Geological Quarterly; 2005, 49, 3; 253-262
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
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