Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "rivers" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 103
Tytuł:
Imagining Rivers: The Aesthetics, History, and Politics of American Waterways. A Conversation Between Lawrence Buell and Christof Mauch
Autorzy:
Buell, Lawrence
Mauch, Christof
Powiązania:
https://bibliotekanauki.pl/articles/2076945.pdf
Data publikacji:
2021-09-30
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
American Rivers
Opis:
This contribution features a transatlantic conversation between Christof Mauch, environmental historian and Americanist from Ludwig Maximilian University in Munich, and Lawrence Buell, literary scholar and “pioneer” of Ecocriticism from Harvard University. Buell’s The Environmental Imagination: Thoreau, Nature Writing, and the Formation of American Culture (1995) marked the first major attempt to understand the green tradition of environmental writing, nonfiction as well as fiction, beginning in colonial times and continuing into the present day. With Thoreau’s Walden as a touchstone, this seminal book provided an account of the place of nature in the history of Western thought. Other highly acclaimed monographs include Writing for an Endangered World (2001), a book that brought industrialized and exurban landscapes into conversation with one other, and The Future of Environmental Criticism: Environmental Crisis and Literary Imagination (2009), which provides a critical survey of the ecocritical movement since the 1970s, with an eye to the future of the discipline.    
Źródło:
Review of International American Studies; 2021, 14, 1; 229-237
1991-2773
Pojawia się w:
Review of International American Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
“Down Beside where the Waters Flow: Reclaiming Rivers for American Studies (Introduction)
Autorzy:
Della Marca, Manlio
Lübken, Uwe
Powiązania:
https://bibliotekanauki.pl/articles/2076956.pdf
Data publikacji:
2021-09-30
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
rivers
river cultures
Rivers of the Americas
Introduction
riverscapes
Opis:
Over the past three decades, rivers have become a fascinating and popular subject of scholarly interest, not only in the field of environmental history, where river histories have developed into a distinct subgenre, but also in the emerging field of environmental humanities. In this scholarship, rivers have often been reconceptualized as socio-natural sites where human and non-human actors interact with the natural world, generating complex legacies, path dependencies, and feedback loops. Furthermore, rivers have been described as hybrid “organic machines,” whose energy has been utilized by humans in many different ways, including the harvesting of both hydropower and salmon. Indeed, as several environmental historians have noted, in many regions of the world, watercourses have been transformed by technology to such an extent that they increasingly resemble enviro-technical assemblages rather than natural waterways. Rivers have also been discussed through the lens of “eco-biography,” a term coined by Mark Cioc in his influential monograph on the Rhine River, a book informed by “the notion that a river is a biological entity—that it has a ‘life’ and ‘a personality’ and therefore a ‘biography’.” Quite surprisingly, despite this “river turn” (to use Evenden's phrase), rivers have played a marginal role in recent American Studies scholarship. To address this gap, this issue of RIAS brings together scholars from different disciplines, countries, and continents to analyze a wide variety of river experiences, histories, and representations across the American hemisphere and beyond. Hence the title of this volume, Rivers of the Americas, should be seen as both an allusion to the Rivers of America book series (a popular series of sixty-five volumes, each on a particular US river, published between 1937 and 1974) and as a reminder of the still untapped potential of hemispheric, transnational, and comparative modes of critical engagement with rivers in American Studies.
Źródło:
Review of International American Studies; 2021, 14, 1; 13-24
1991-2773
Pojawia się w:
Review of International American Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Investigation of riverbed erosion in a mountainous river
Autorzy:
Łapuszek, M.
Powiązania:
https://bibliotekanauki.pl/articles/241410.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
mountain rivers
riverbed erosion
Opis:
The channel, floodplain and terraces are formed primarily through the erosion, transport and deposition of sediment by streamflow. The aim of the paper is to es-tablish the changes at the gauging sections caused by riverbed erosion. The erosion process is evaluated on the basis of minimal annual water stages in gauging station. Minimal annual water stages correspond to the changes of river-bed level. On the basis of 90 years of low stages for gauging stations: Krościenko and Żabno on the Dunajec River, the erosion trends and intensity of cross-section changes are esta-blished. The computation results are compared with the quantity of real changes at gauging sections which are measured in different years. The problem presented in this paper is important in engineering. The knowledge of river-bed changes is ne-cessary when designing water intakes, bridges, etc. It is also connected with deter-mination of the location of underground water in the adjacent area, which is very important for evaluation of the water regime in the soil.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2003, 50, 1; 21-35
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the USBR equation for surveying balance of sediment yield in Dez River branches in Iran
Autorzy:
Fuladipanah, M.
Makvandi, A.
Powiązania:
https://bibliotekanauki.pl/articles/208109.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
sediments
rivers
osady rzeczne
rzeki
Opis:
Accurate determination of mean annual sediment load (MASL) of natural rivers will affect administrative aspects of water planning in dams. The MASL in Dez River in the southwest Iran has been considered. Sezar and Bakhtiari are its two branches. The amount of MASL was predicted by the USBR equation with three scenarios: using mean value of sediment discharge, using probabilistic classification of river flow data and using separation of wet and dry months. The results show that the USBR equation can be used to evaluate MASL in the Dez basin.
Źródło:
Environment Protection Engineering; 2013, 39, 3; 185-195
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the Impact of Riparian Vegetation on Flow Structure and Bed Sediment Distribution in Rivers
Autorzy:
Morri, Mabrouka
Soualmia, Amel
Powiązania:
https://bibliotekanauki.pl/articles/241422.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
rivers
sediment
flood
vegetation
model
Opis:
The effect of instream vegetation growth has largely been ignored by hydrological and geomorphological research in river environments, which focused instead on the function of riparian vegetation as a regulator of bank stability or as a buffer for dissolved and particulate matter entering the channel from the hillside. However, in many lowland streams, instream vegetation can be very intensive, resulting in high biomass levels during the growing season. Instream plants have a significant influence on the dynamics of flow, sediment, and nutrients. Plant growth can cause increased frictional resistance to flow and can have a short-to medium-term effects on the geomorphology of the channel. Additionally, plant development influences the velocity of river flow, affects sedimentation dynamics and increases flood risk. To achieve a balance between flooding and ecological management of rivers in the presence of vegetation, a reliable method is required to predict the resistance of channels. In the current study, a two-dimensional hydrodynamic and morphodynamic model is developed and applied using a new scaling expression of shear stress based on vegetation characteristics. These first attempts at field simulations showed qualitatively acceptable results and demonstrated the effectiveness of the model in predicting hydraulic parameters in the presence of vegetation. This model is useful in predicting the effect of vegetation on stream flow and river morphology, as well as in managing flood hazards and stream ecology.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2019, 66, 3-4; 59-75
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Function of water in the landscape of the villages in the past and in present, on example of villages in Lower Silesia
Autorzy:
Niedźwiecka-Filipiak, I.
Serafin, L.
Powiązania:
https://bibliotekanauki.pl/articles/125240.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
surface waters
rural landscape
rivers
ponds
Opis:
Since ancient times, water was associated with colonization, being one of the main factors determining the localization of both cities and villages. Rivers, streams, water reservoirs were also the element contributing to the attractiveness of the rural landscape. Initially, the function of surface waters in the rural areas was limited to utility and connected with farm production. With time, the surface waters started being used for energy production and for industrial purposes. Proper management of surface waters also contributes to increase retention and reduce the risk of flooding. With time, streams and ponds became being used in mansion parks, which have been the endeavor enriching the composition. Today, rivers and water reservoirs in the villages no longer play such a significant utility and industrial role. Their function changed into mainly decorative and recreational. However, in many places the potential of using the areas adjoining rivers and ponds is not used by the village residents, which result in backfilling small water reservoirs in the villages and closing the visibility of flowing streams.
Źródło:
Journal of Ecological Engineering; 2015, 16, 1; 92-99
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the situation of the Euphrates-Tigris-Shatt Al Arab river system and possible solutions of the devastation of the ecosystem
Autorzy:
Kordic, M.
Milankovic, M.
Powiązania:
https://bibliotekanauki.pl/articles/184275.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
international waters
water management
transboundary rivers
Opis:
International waters are the most problematic area of water management because there comes to a collision of rights between the riparians, and the most complicated is the problem of trans-boundary rivers (Stevanović 2011). The Euphrates-Tigris-Shatt Al Arab river system is the largest water resource in the Western Asia with a topographic catchment of more than 900,000 km 2 from the Taurus-Zagros Mountain Range to the Persian Gulf and is populated by around 54 million people. The riparians: Turkey, Syria and Iraq have different views on the resources of these rivers. Turkey doesn’t agree with the term “sharing waters”. They see it as inadequate. For them the Euphrates is a trans-boundary river that is under their sovereignty as long as it is within its territory. Iraq and Syria take it as an “international river” that should be treated as a shared entity. According to Turkey the Euphrates and Tigris form a single water basin, but Iraq and Syria consider them as two separate basins (UN-ESCWA and BGR, 2013). Turkey says that in order to reach an agreement on allocation, negotiations should include all available water resources, but Syria and Iraq disagree. At the 1997 UN Convention on the Law of Non-navigational Use of International Watercourses Turkey was the only Euphrates Basin country that voted against. If they had signed, that could give riparians a veto right over their development plans. In 1987 Damask and Ankara signed a protocol, which guaranteed 500 m 3•s -1 of flow volume in the Euphrates River to Syria, which was not respected during the filling of Ataturk Dam in 1990. In 1977 Turkey initiated the South-eastern Anatolia Project (GAP in original) to harness the water of the Tigris and the Euphrates for energy and agricultural production thus providing an economic boost to south-eastern Anatolia by creating 4 million new jobs. The flow of the river has been cut in half by 2010 on the border with Syria and by 2/3 for Iraq since the development of the GAP project. In Iraq this flow reduction is viewed as a national crisis that will have serious consequences (Issa et al. 2014). The project covers an area of 74,000 km 2 and is populated by around 7 million people. When completed, there will be 22 dams and 19 hydroelectric power plants on these rivers. The plan is to produce 27,367 GWh of hydroelectric energy per year and to double irrigable farmland to 1.8 million ha (UN-ESCWA & BGR 2013). Today almost half of GAP has been fulfilled. This led to an increase in salinity and serious changes of the ecosystem and river flow regime. These caused a discord between riparians, NGOs and activists worldwide. International experts think that GAP is going to consume more than 50% of the Euphrates and about 14% of the Tigris. To verify this view, two periods of monitoring were selected. The first period is from 1938–1974 and it represents the natural flow of the Euphrates River before the construction of the Keban Dam in Turkey and Lake Assad in Syria and the second is from 1974–1998 as the first phase of the evolving infrastructure on the Euphrates basin. The average flow was measured in Jarablat (Syria) and for the first period is around 950 m 3•s −1 and for the second around 800 m 3•s −1 , than Hit (Iraq) decreased from 970 m 3• s −1 to 720 m 3• s −1 and Hindijah (Iraq) from 630 m 3•s −1 to 470 m 3 •s −1 (UN-ESCWA & BGR 2013). We can see a pattern and a decrease in river flow volume by around 150 m 3• s −1 . Of course, regulation of the Euphrates can protect downstream countries from floods and droughts. The effects of water pollution are mostly visible downstream in Syria because Turkey diverts water from the main course of the Euphrates at Lake Ataturk. The water goes through the Urfa tunnels to the Urfa-Harran agricultural area in the upper Jallab/Balikh and Khabour sub-basins. The return flows from irrigation are large in quantity but poor in quality and they enter Syria mostly through the Jallab River near Tell Abyad and enter the Euphrates through the Balikh River around 200 km from the Syrian-Turkey border. This shows us why the Euphrates water quality has remained almost unaffected by the agricultural development in Turkey on the Syrian-Turkey border. There should come to a conjoined look from the riparians on the rights of the ecosystem and the serious damage that is being done to it and the legal obligations of the riparians between themselves, for the sake of the greater good. This is extremely difficult especially now with the rising political problems between Turkey and Syria. International experts in all fields relevant to this problem should meet and discuss the matter, and enforce laws that will stick and solve the issue. The most important issue should be the environment but we should not look the other way for the needs of the riparians and their development too. So very important would be research and evaluation of the potential of all available resources and their combined usage. There should be a good monitoring network of the underground and surface waters and calculation of the regime, balance and reserves and the amounts of water that is needed by riparians, and determining the connection of overall water flow because of the circulation of pollution. Also, an assessment of geothermal potential of the area and its possible usage considering the North and East Anatolian Fault Zone should be made. For example, for the production of electricity solar or geothermal energy could be used, as well as the energy of the wind and the energy of biomass should be utilised, separately or concurrently. If there are underground waters available, a variety of methods could be used, such as “AGRONET” and drip irrigation technique to decrease the usage of surface waters and their pollution. Polluted waters could be used for energy production by constructing a hydroelectric power plant in the area where polluted waters are flowing and there could also be a water treatment plant erected. Polluted waters should be monitored and diverted into one watercourse, which should be controlled by a hydro-isolator securing the ground beneath and on the sides of this new course.
Źródło:
Geology, Geophysics and Environment; 2016, 42, 1; 83-84
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal Changes in Chromium Content in the Water of the Bystrzyca River (Dolnoslaskie Province)
Sezonowe zmiany zawartości chromu w wodzie rzeki Bystrzycy (województwo dolnośląskie)
Autorzy:
Senze, M.
Kowalska-Góralska, M.
Powiązania:
https://bibliotekanauki.pl/articles/387960.pdf
Data publikacji:
2012
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
chrom
woda rzeczna
chromium
water rivers
Opis:
The study was conduct on the Bystrzyca river and its tributaries. The samples water were tested for chromium(VI). Chromium content in the waters covered by the study corresponded to that characteristic of surface waters in the areas of Poland with medium chromium pollution levels. Locally recorded higher concentrations were probably a result of discharges of municipal sewage or sewage from small industrial plant.
Badania prowadzono na rzece Bystrzycy i jej dopływach. W pobranych próbkach wody oznaczono zawartość chromu(VI). Zawartość chromu w badanych wodach utrzymuje się na poziomie charakterystycznym dla wód powierzchniowych obszaru Polski o średnim stopniu zanieczyszczenia chromem. Lokalnie notowane podwyższenia stężeń są najprawdopodobniej wynikiem miejscowych zrzutów ścieków komunalnych i pochodzących z niewielkich zakładów przemysłowych.
Źródło:
Ecological Chemistry and Engineering. A; 2012, 19, 4-5; 433-440
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The risk as a measure of ecological safety in watercourses
Ryzyko jako miara bezpieczeństwa ekologicznego w ciekach
Autorzy:
Bondar-Nowakowska, E.
Hachoł, J.
Powiązania:
https://bibliotekanauki.pl/articles/293078.pdf
Data publikacji:
2014
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
ecological risk
ecological safety
hydromacrophytes
rivers
rivers regulation
bezpieczeństwo ekologiczne
regulacja rzek
rośliny wodne
ryzyko ekologiczne
rzeki
Opis:
The study analyses possibilities of PHA (Preliminary Hazard Analysis) usage in ecological risk assessment conducted within technical risk assessment. The analysis was performed based on results obtained in a study performed between 2007 and 2013 in natural and modified lowland Lower Silesian watercourses. The object of the study was communities of hydromacrophytes being good indicators of the water ecosystem quality. The research constituted a base for the determination of ecological risk factors i.e. the probability of hazard occurrence and its effects. It allowed for the acquisition of the risk classification matrix which included three levels – low, medium and high.
W pracy przeprowadzono analizę możliwości wykorzystania metody wstępnej oceny zagrożeń (ang. Preliminary Hazard Analysis – PHA), stosowanej w ocenie ryzyka technicznego, do oceny ryzyka ekologicznego. Analizę przeprowadzono na podstawie wyników badań wykonanych w latach 2007–2012 w czterech nizinnych rzekach Dolnego Śląska. Na rzekach tych wyznaczono 15 odcinków badawczych, zróżnicowanych pod względem stopnia ich przekształcenia. Przedmiotem badań były zbiorowiska naczyniowych roślin wodnych. Badania terenowe obejmowały identyfikację gatunków roślin występujących na poszczególnych odcinkach badawczych oraz określenie stopnia pokrycia przez nie dna. Na tej podstawie dla każdego odcinka obliczono wskaźnik różnorodności Shannona-Wienera. W celu oceny zmian jakościowych i ilościowych w rozpatrywanych zbiorowiskach, wynikających z przekształcenia koryt cieków, wykonano analizy porównawcze. Podstawę do klasyfikacji wielkości szkód zaistniałych w wyniku przeprowadzonych robót stanowiły zmiana liczby gatunków w zbiorowiskach naczyniowych roślin wodnych oraz wskaźnika bioróżnorodności, określone w stosunku do odcinków nieobjętych ingerencją techniczną. Na podstawie wyników badań określono czynniki ryzyka ekologicznego, tj. prawdopodobieństwo wystąpienia zagrożeń oraz skutki tych zagrożeń. Umożliwiło to opracowanie macierzy klasyfikacji ryzyka, w której przyjęto trzy poziomy ryzyka – niskie, umiarkowane oraz wysokie. Zakwalifikowanie ryzyka do odpowiedniego przedziału pozwala na porównanie różnych rozwiązań projektowych oraz na podjęcie decyzji, które z nich przyjąć do realizacji.
Źródło:
Journal of Water and Land Development; 2014, 20; 3-10
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Working Lives on the Mississippi and Volga Rivers. Nineteenth-Century Perspectives
Autorzy:
Zeisler-Vralsted, Dorothy
Powiązania:
https://bibliotekanauki.pl/articles/2076947.pdf
Data publikacji:
2021-09-30
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
rivers
labor
race
barge hauler
African American
Opis:
Throughout the nineteenth century, major rivers assumed multiple roles for the emergent nation-states of the western world.  The Thames in England, Seine in France, and Rhine in Germany all served as fodder for a growing sense of national identity.   Offering a unity and uniqueness, the rivers were enlisted by poets, artiss, and writers to celebrate their country's strengths and aesthetic appeal.  The Mississippi and Volga Rivers were no exceptions to this riverine evolution.  At the same time, however, less vocal populations experienced the rivers differently.  To African Americans--enslaved and free--laboring on the Mississippi offered a freedom of movement unknown to the land-bound.  While employed on steamships, African Americans escaped the vigilance of an overseer with the possibility to escape bondage.  Still the work was demanding and relentless.  To the burlaki, the Volga was taskmaster and nurturer.  But for both groups, laboring on the rivers resulted in connections that were immediate, intimate, exacting, often tedious and brutal concomitant with marginalized lives, consigned to society's fringe.  Still, the lives shaped by working on these rivers, produced rich cultures revealing alternative riverine histories.  In these histories, the rivers possessed an agency, enshrining an ambiguity in humans' kinship to the environment; a complexity often missing in the national narratives. 
Źródło:
Review of International American Studies; 2021, 14, 1; 77-105
1991-2773
Pojawia się w:
Review of International American Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ionic composition of rainwater from different sampling surfaces across selected locations in Rivers State, Nigeria
Autorzy:
Omokpariola, Daniel Omeodisemi
Nduka, John Kanayochukwu
Omokpariola, Patrick Leonard
Omokpariola, Elshalom Chioma Onomeda
Powiązania:
https://bibliotekanauki.pl/articles/1031790.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Anions
Cations
Nigeria
Rainwater quality
Rivers State
Opis:
This study seeks to assess the impact of pH from an array of ions interactions in rainwater samples across different sampling surfaces (ambient, zinc roof, aluminium roof, asbestos roof and stone-coated roof) and locations (Ogale, Eleme, Rumuodomaya/Rumuodome, Obio-Akpor, Diobu, Port-Harcourt and Chokocho, Etche) in Rivers State, Nigeria. Rainwater were sampled from April, 2019 to October, 2019, prepared and analysed for pH, Cl¯, SO42–, NO3¯, NO2¯, PO43–, HCO3¯, Na+, K+, Mg2+, Ca2+, NH4+ and Al3+.using standard procedure. Statistical and Factor analysis was estimated to give ionic impacts on rainwater quality. The results showed that pH across different sampling surfaces ranged from 6.26 – 7.02 with decreasing location as Rumuodomaya/Rumuodome > Diobu > Chokocho > Ogale which impacts on different cation and anion interactions. Factor analysis showed cumulative variance of 88.79% for ambient, 87.58% for zinc roof, 86.49% for aluminium roof, 89.57% for asbestos roof and 65.89% for stone-coated roof across all four locations which are due to industrial and biomass emission, agricultural, metabolic and mining activities on chemical composition. Therefore,
Źródło:
World Scientific News; 2020, 150; 132-147
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability of spring riverflow of selected lowland rivers
Autorzy:
Piętka, Izabela
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2034234.pdf
Data publikacji:
2010-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
spring flow
discharge
lowland rivers in Poland
Opis:
This paper aims at identification of changes in the spring discharge of six lowland rivers in Poland in 1966-2006. The contribution of the spring flow (February, March, April) in the annual flow was analysed as well as the 0.95 quantile time series of the daily flow. To investigate how the date of the occurrence of the spring riverflow changes, for each hydrological year the day up to which 50% of the annual flow had been reached was determined (CMD, the center of mass data). A test based on linear regression was applied, which determined the direction and rate of the changes. In five rivers, a statistically insignificant tendency to increase the contribution of the spring flow in the annual flow has been observed. A decreasing tendency in the spring discharge of all rivers has been shown; in two cases the changes are statistically significant. The tendencies in the CMD time series are not consistent.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2010, 14; 177-183
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The sources of nutrients in waters of rivers in the wetland areas of Narew National Park in north-eastern Poland
Autorzy:
Skorbiłowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/124887.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
rivers
sources of nutrients
factor analysis
Narew
Opis:
The study aimed at the attempt to identify and to evaluate the interaction intensity, and to classify the sources of river waters nutrients in the catchment of upper river Narew within Narew National Park (north-eastern Poland). The studies were carried out on Narew river within borders of Narew National Park, where 5 measurement-control points were localized as well as one near estuaries of its 5 tributaries (Awissa, Czaplinianka, Horodnianka, Turośnianka and Supraśl). Factor analysis (FA) from multi-dimensional group was applied for statistical processing of study results, because it is commonly used to describe and explore a large number of data. concentrations of analyzed chemicals depended on a water sampling point that was under anthropopression and geogenic conditions. Studies and results from analyses (FA and CA) allowed for identifying the main sources of river Narew nutrients within Narew National Park. These are: tributaries of river Narew, point and distributed runoffs, as well as shallow ground waters that transport components having anthropogenic and partially geogenic-lithologic origin. River Turośnianka supplies the largest loads of studied parameters to river Narew within Narew National Park boundaries. River Supraśl is the most contaminated tributary of river Narew.
Źródło:
Journal of Ecological Engineering; 2013, 14, 3; 1-7
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Practical Application of 1-D Sediment Transport Model
Autorzy:
Łapuszek, M.
Paquier, A.
Powiązania:
https://bibliotekanauki.pl/articles/241220.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
mountain rivers
riverbed erosion
1-D model
Opis:
The aim of the paper is to present a numerical simulation of sediment transport in a mountain river. Two one-dimensional sediment transport models: RubarBE and Metoda are applied to predict variation of longitudinal bed profile along the river reach and changes in the cross-sectional geometry due to erosion or deposition of sediment. In the current paper, simulation of the sediment transport is applied for the experimental reach of the River Raba - a mountain tributary of the Vistula River. The reach is located from 81.829 km to 77.751 km upstream from the Dobczyce Dam. This part of the river was completely changed due to the project concerning the extension of the Kraków-Zakopane road, which is located next to the Raba River. The results of simulation of riverbed evolution, before and after river training carried out by both models, are analysed and discussed.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2007, 54, 4; 245-260
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of heavy metal content in bottom sediments and aquatic plants near treated wastewater discharge
Autorzy:
Skorbiłowicz, M.
Skorbiłowicz, E.
Tarasiuk, U.
Falkowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/184819.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
rivers
wastewater treatment plant
metals
bottom sediment
macrophytes
Opis:
The paper attempts to determine the degree of impact of discharged wastewater from five treatment plants on the Bug River ecosystem and its inflow, the Kamianka. For laboratory tests, samples of bottom sediments and aquatic plants were collected in 2014. The content of heavy metals: Zn, Pb, Ni in bottom sediments and aquatic plants (root, stem, leaf) growing close to the discharge of purified sewage, were analyzed. The amount of metals in the samples was determined applying the AAS method in its flame version. The average content of the metals determined in bottom sediments from the study points located before the treatment plant were Zn – 21.8; Pb – 11.5; Ni – 13.7 mg kg−1. However, the content of these metals was higher in samples from the collection points which were located after the place of purified sewage discharge and amounted to: Zn – 34.3; Pb – 12.2; Ni – 16.9 mg⋅kg−1. The test plants were Acorus calamus L., Nuphar lutea L., Typha angustifolia L. The content of metals in the individual parts of macrophytes (root, stem, leaf) was as follows: Zn > Pb > Ni. In the bottom sediments and aquatic plants of the Bug and Kamianka rivers, a higher content of lead, zinc and nickel was found after the discharge of treated sewage in relation to their content than before discharge, but it was not a threat to the aquatic environment of the watercourses studied. Statistical analysis showed that the amount of sewage discharged to the tested receivers influenced the content of organic matter, zinc and nickel in bottom sediments.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 4; 311-325
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 103

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies