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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:
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:
Effects of idol immersion on the water quality parameters of Indian water bodies: Environmental health perspectives
Autorzy:
Bhattacharya, S.
Bera, A.
Dutta, A.
Ghosh, U.C.
Powiązania:
https://bibliotekanauki.pl/articles/411629.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
quality of water
rivers
dirt of waters
India
Opis:
India is a rich cultural country in which diverse cultural and religious festivals are organized. Idol is an image of a god which is used as an object of worship. After worshipped, these idols are immersed into water bodies. Idols are constructed by plaster of paris, clay, cloths, small iron rods, bamboo and decorated with different paints such as varnish, water colors etc. which can lead to significant alteration in the water quality after immersion. Paints which are used to colour these idols contains various heavy metals such as Mercury, Cadmium, Arsenic, Zinc, Chromium and Lead. Particularly, red, blue, orange and green colours contain mercury, zinc oxide, chromium and lead, which are potent carcinogens. Two heavy metals such as Lead and Chromium also add in the water bodies through Sindoor (a traditional red colored cosmetic powder, usually worn by married women and often used in the festivals). The floating materials released through idol in the river and lake after decomposition result in eutrophication, increase in acidity and heavy metal concentration. Heavy metal pollution caused by idol immersion can damage the ecosystem as it kills fishes, damages plants, blocks the natural flow of the water, causing stagnation. The effects of idol immersion on various water bodies of India like Bhoj wetland, Budhabalanga river, Ganges river, Hussainsagar lake, Kolar river, Sarayu river, Tapi river, Chhatri lake, north and west lakes of Bangalore and Yamuna river have been observed so far. Investigations were carried out to find out the effects of immersion of idols on water quality by collecting and analyzing the water samples from the immersion sites of the rivers. The samplings were done before the immersion, on the day of immersion and after the event and several parameters like Temperature, pH, Dissolved Oxygen, BOD, Dissolved CO2, Conductivity, Salinity, Alkalinity, TDS, Total Hardness, Chlorides etc. are estimated. Most of the studies found significant changes in the water quality parameters during and after immersions. Central Pollution Control Board has formulated guidelines on the practice of idol immersion in water bodies, which should be followed for controlling pollution.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 20, 2; 234-263
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural Diminishing Trend of the Tigris and Euphrates Streamflows is Alarming for the Middle East Future
Autorzy:
Yıldız, Dursun
Powiązania:
https://bibliotekanauki.pl/articles/1192674.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Middle East water
Climate change
drought
water shortage
transboundary rivers
Tigris and Euphrates
Opis:
Over the last decade, numerous studies have appeared in books and journals addressing the climate change impacts on water quantity and quality of the Euphrates and Tigris River Basins. When one focused to these studies it can be seen that several studies link the Syrian uprising and subsequent outbreak of civil war to the drought. it also seems that when the current civil war is over, the most important need will be implementation of a basin wide sustainable water management policy. Therefore this requires more cmprehensive studies on current situation and future threats of the basin. Some of the researches have stated in their recently published articles that, “a severe drought occurred by human-induced climate change and a mass migration of drought-affected farmers fled to Syria’s, then the influx of migrants exacerbated unemployment and inequality in the cities, contributing to civic unrest over a nonresponsive government”. Most researchers agree that climate change contributed to the drought in Syria and civil unrest crisis. Recent studies have also noted that there has been an natural declining trend in Tigris and Euphrates Streamflows That means that changes in flow are more closely related to natural diplomacy features than with human interventions in Tigris and Euphrates Basins. All this abovementioned results are alarming invitations to all riparian states in the Middle East to create a new hydro diplomacy.
Źródło:
World Scientific News; 2016, 47, 2; 279-297
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obecność azotu azotanowego w roślinach i w wodzie - przeszłość i przyszłość
The presence of nitrate nitrogen in plants and in water - the past and the future
Autorzy:
Kozłowski, S.
Zielewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/338582.pdf
Data publikacji:
2009
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
azot azotanowy
rośliny pastewne
trwałe użytki zielone
wody rzek i cieków
fodder plants
nitrate nitrogen
permanent grasslands
waters of rivers and water courses
Opis:
Problem obecności azotu azotanowego w środowisku przyrodniczym jest rozpoznawany w wielu aspektach - w odniesieniu do gleby i wody, organizmów roślinnych, zwierzęcych, uwarunkowań pogodowych, siedliskowych, czynników biotycznych i antropogenicznych. Tematyka azotanowa jest bardzo bliska rolnictwu w sferze poznawczej (naukowej) i utylitarnej. Niewątpliwie rolnictwo stanowi źródło wyzwalania azotu azotanowego do środowiska, lecz jest także dziedziną różnorodnego "konsumowania" azotu azotanowego i minimalizowania skutków jego obecności w środowisku. Prace badawcze nad przyczynami i skutkami obecności azotu azotanowego w środowisku przyrodniczym mają ponad stuletnią historię i są prowadzone przez liczne ośrodki naukowe, a literatura z tego zakresu jest niezwykle bogata. Od blisko 50 lat współuczestniczyliśmy w nich jako Katedra Łąkarstwa Uniwersytetu w Poznaniu. Efektem naszych badań są liczne publikacje. W niniejszym opracowaniu pragniemy przedstawić niektóre z wyników badań zarówno wieloletnich, jak i najnowszych, najbardziej aktualnych.
The problem of the presence of nitrate nitrogen in the natural environment is recognised at different levels and aspects - with reference to the soil and water, plant and animal organisms, weather and site conditions, biotic and anthropogenic factors. Nitrate issues are of vital importance in agriculture not only from the cognitive (scientific) but also utilitarian point of view. There is no doubt that agriculture releases nitrate nitrogen into natural environment but, simultaneously, it "consumes" nitrate nitrogen and minimizes its presence in the environment. Scientific investigations on the cause and effect of the presence of nitrate nitrogen in the natural environment are more than hundred-year old and are carried out by numerous research centres and the literature on the subject is exceptionally abundant. As Department of Grassland Science, we have also participated in these studies for nearly 50 years as can be seen from our numerous papers published on this subject. This paper aims to present some of our long-term research results in this area as well as the most recent publications.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2009, 9, 2; 125-137
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of waste assimilative capacity (WAC) of rivers located within the Desaru Region, Joho
Autorzy:
Zainudin, Z.
Azmi, A. S.
Jimat, D. N.
Jamal, P.
Powiązania:
https://bibliotekanauki.pl/articles/206928.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
water contamination
BOD5
water pollution
rivers
zanieczyszczenie rzek
BZT5
zanieczyszczenie wody
rzeki
Opis:
Desaru is a popular tourist destination located on the east coast of the state of Johor. The area has been identified for further development to enhance tourism. This presents a pollution risk to its surrounding watercourses. The purpose of this study was to assess the potential risk of contamination towards rivers located in the crux of the development region, namely the Terumpah, Che Minah, Semangar, Beluntu, Penawar Besar, and Mertang Besar Rivers. Water quality and hydraulic measurements were made at these rivers, with the intention of developing a numerical model. The model results showed deterioration in BOD5 and NH3-N in the Semangar River, up to 4.0 mg/dm3 and 0.34 mg/dm3, respectively. The Beluntu River experienced the highest degradation, to about 14.0 mg/dm3 of BOD5 and 0.8 mg/dm3 of NH3-N. The waste assimilative capacity (WAC) for the Matang Besar, Che Minah and Beluntu Rivers were very limited, with a class III BOD5 limit of 15, 43, and 10 kg/day, respectively, whereas the Terumpah River is not able to accept any BOD load without breaching the same threshold.
Źródło:
Environment Protection Engineering; 2015, 41, 4; 49-60
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena stanu jakości wód rzek Omulew i Rozoga na podstawie makrofitów
The assessment of water quality of the river Omulew and Rozoga based on the macrophytes
Autorzy:
Grabińska, A
Szymczyk, S.
Grabińska, B.
Powiązania:
https://bibliotekanauki.pl/articles/399641.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
rzeki nizinne
makrolity
jakość wód
lowland rivers
macrolides
water quality
Opis:
W pracy dokonano oceny stanu jakości wód Omulwi i Rozogi według Makrofitowej Metody Oceny Rzek (MMOR). Metoda wykorzystuje właściwości indykacyjne roślin wodnych. Na wytypowanych 100-metrowych odcinkach obu rzek przeprowadzono inwentaryzację roślinności pod kątem składu gatunkowego oraz udziału w pokryciu badanych stanowisk. Uzyskane dane zgodnie z założeniami przyjętej metody pozwoliły na opracowanie ilościowej i jakościowej charakterystyki roślinności wodnej w obrębie wyznaczonych odcinków rzek. W dalszej kolejności dały podstawę do określenia stopnia degradacji rzek związanego z zanieczyszczeniami troficznymi, wyrażonego wskaźnikiem – Makrofitowy Indeks Rzeczny (MIR). Na podstawie zakresu wartości wskaźników trofii oraz tolerancji ekologicznej wody badanych rzek uzyskały charakterystykę mezotroficznych przy czym w środowisku Omulwi znaczący (4,5%) udział w pokrywaniu podłoża miał wrażliwy na zanieczyszczenia Ranunculus aquatilis. Według obliczonej wartości wskaźnika MIR wody Omulwi sklasyfikowały się w II klasie jakości wód i dobrej klasie stanu ekologicznego. MIR dla badanego odcinka Rozogi odpowiadał III klasie jakości wód oraz umiarkowanemu stanowi ekologicznemu.
The paper presents the assessment of water quality of the rivers Omulew and Rozoga with Macrophytes Method of Assessing Rivers (Mmore). The method uses the indicating features of the aquatic plants. An inventory of the vegetation for species composition and participation in covering the surveyed positions has been carried on selected 100-meter sections of the both rivers. The obtained data, in line with the adopted method, allowed to develop the quantitative and qualitative characteristics of aquatic vegetation within the designated sections of rivers. Subsequently, they gave foundation to determining the degree of degradation, associated with the trophic pollution of the rivers, expressed in Macrophyte River Index (MIR). Based on the range of values of the trophic and ecological tolerance, waters of the surveyed rivers acquired the characteristics of the mesotrophic environment, meanwhile in the Omulew river significant (4.5%) share in covering the ground had sensitive to the pollution Ranunculus aquatilis. According to the calculated values of the MIR, the river Omulew water was classified as Class II of the water quality and good ecological status. MIR for the tested Rozoga river section was appropriate for Class III of the water quality and medium ecological status.
Źródło:
Inżynieria Ekologiczna; 2014, 38; 129-135
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioaccumulation of Aluminium in the Aquatic Environment of the Dobra River in Wroclaw
Bioakumulacja glinu w środowisku wodnym rzeki Dobrej we Wrocławiu
Autorzy:
Senze, M.
Kowalska-Góralska, M.
Czyżowicz, I.
Powiązania:
https://bibliotekanauki.pl/articles/388887.pdf
Data publikacji:
2011
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
bioakumulacja
aluminium
rośliny wodne
woda
rzeki
bioaccumulation
aquatic plants
water
rivers
Opis:
Laboratory tests were carried out regarding the aquatic environment of the Dobra River within the borders of the city of Wroclaw. The study material was constituted by the river water and aquatic plants. The concentration of aluminium in the water oscillated between 0.0517 mgAl dm–3 and 0.2130 mgAl dm–3. The maximum concentration of aluminium in the aquatic plants amounted to 7.178.65 mgAl kg–1 and the minimum to 118.75 mgAl kg–1. The tests indicated that the Dobra River waters should be classified as water of medium pollution. Aluminium concentrations in the plants were also found to be moderate.
Przeprowadzono badania środowiska wodnego rzeki Dobrej na terenie Wrocławia. Materiałem badawczym były woda rzeczna i rośliny wodne. Poziom glinu w wodzie zawierał się między 0,0517 mgAl dm-3 a 0,2130 mgAl dm-3. W roślinach wodnych maksimum zawartości glinu wyniosło 7178,65 mgAl kg-1, a minimum 118,75 mgAl kg-1. Wody rzeki Dobrej można zaliczyć do wód o średnim stopniu zanieczyszczenia. Obecność glinu w badanych roślinach utrzymuje się również na umiarkowanym poziomie.
Źródło:
Ecological Chemistry and Engineering. A; 2011, 18, 11; 1545-1550
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ewolucja metody oceny stanu hydromorfologicznego rzek RHS-PL w Polsce
The evolution of hydromorphological method for river assessment RHS-PL in Poland
Autorzy:
Jusik, S.
Bryl, Ł
Przesmycki, M
Kasprzak, M.
Powiązania:
https://bibliotekanauki.pl/articles/297148.pdf
Data publikacji:
2014
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
hydromorfologia
rzeki
monitoring
ramowa dyrektywa wodna
hydromorphology
rivers
Water Framework Directive
Opis:
Ocena antropogenicznych zmian warunków morfologicznych, reżimu hydrologicznego oraz ciągłości ekosystemu, podobnie jak właściwości fizyczno-chemicznych, ma znaczenie wspierające w zgodnej z Ramową Dyrektywą Wodną ocenie stanu ekologicznego wód powierzchniowych. Wśród wielu metod oceny stanu hydromorfologicznego rzek stosowanych w Polsce jedną z bardziej popularnych jest River Habitat Survey (RHS). System ten jest wykorzystywany w naszym kraju od 1997 roku przez wiele ośrodków naukowych. W 2007 roku przygotowana została pierwsza polska wersja podręcznika do badań terenowych RHS. Od tamtego czasu metoda bardzo upowszechniła się zarówno wśród naukowców, jak i praktyków. W artykule przedstawiono przegląd najważniejszych pozycji literatury polskiej i zagranicznej dotyczących stosowania metody RHS na obszarze Polski. Dokonano syntezy informacji na temat ewolucji metody w naszym kraju, podano naukowe, jak też praktyczne przykłady jej zastosowania, wady i zalety systemu, najczęściej popełniane błędy w literaturze tematu oraz przeanalizowano RHS na tle metod badań geomorfologicznych i hydrograficznych stosowanych w Polsce.
Assessment of anthropogenic changes in morphological conditions, hydrological regime and the continuity of the ecosystem, as well as in physicochemical properties, is important for the assessment of ecological conditions of surface waters consistent with the Water Framework Directive. The River Habitat Survey (RHS) is one of the many popular methods used in Poland for the assessment of hydromorphological conditions of rivers. This system has been used in Poland since 1997 by several scientific centres. In 2007, the first Polish version of the textbook on RHS fieldwork was prepared and courses related to the method were organised by the Department of Ecology and Environmental Protection, University of Life Sciences in Poznań. Since then, the method has been commonly used, both by scientists and by practitioners. By the end of 2013, 200 people were trained in the application of the RHS method. The method has been used to assess the hydromorphological status of rivers and as a complementary tool in the assessment of ecological conditions, under the Habitats Directive, with reference to habitat 3260, to assess the continuity of river ecological corridors and suitability of spawning grounds for sea trout and salmon, to assess the process and effects of renaturalization of rivers, and to assess the impact exerted by an investment on the environment (OOŚ). The research was conducted in different types of lowland, upland, and montane watercourses. Both natural watercourses and artificial channels were investigated, as well as morphologically transformed river sections. Some of the studies were conducted in protected areas (in national and landscape parks) characterized by a high degree of hydromorphological naturalness. The method proved to be useful in each of the above-mentioned types of watercourses, allowing reliable assessment, and also in the case of severely transformed rivers with an entirely artificial, concrete, trapezoidal channel and urban sections of watercourses. The paper presents a review of 100 Polish and foreign papers on the use of the RHS method in Poland. A synthesis of information on the evolution of the method in Poland was performed, scientific and practical examples of its application were presented together with advantages and disadvantages of the system, the most common mistakes made in the relevant literature, and RHS was analysed in relation to geomorphological and hydrographic research conducted in Poland. The advantages of the RHS method emphasized by many authors include its affordability, simplicity and comprehensiveness of the description of a watercourse together with a river valley at a distance of 50 m from a river bed. The major advantage consists in the assessment of hydromorphological conditions based on direct measurements performed in the field, which allows collection of current data on the real condition of river habitats.
Źródło:
Inżynieria i Ochrona Środowiska; 2014, 17, 1; 41-62
1505-3695
2391-7253
Pojawia się w:
Inżynieria i Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water mites (Hydrachnidia) of the Biała Łada and Czarna Łada Rivers in the Lublin Region
Autorzy:
Zwal, Andrzej
Kowalik, Witold
Powiązania:
https://bibliotekanauki.pl/articles/763823.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Hydrachnidia
water mites
upland rivers
the Lublin Region
wodopójki
rzeki wyżynne
Lubelszczyzna
Opis:
The collections of water mites (Hydrachnidia) from the years 1973 and 1974 of two upland rivers – the Biała and Czarna Łada (south-eastern Poland) were elaborated. Among 1,178 individuals, 43 species were distinguished: 34 species in the River Biała Łada and 27 in the River Czarna Łada. Rheophiles and rheobionts were dominating. Some mountain species, rare in the upland areas also occurred. Seasonal changes of numbers and clear negative impact of water pollution and hydrotechnical works on water mites were found in the studied rivers, too.
Opracowano zbiory wodopójek (Hydrachnidia) z lat 1973 i 1974 dwu rzek wyżynnych – Białej Łady i Czarnej Łady (Polska południowo-wschodnia). Wśród 1178 osobników wyróżniono 43 gatunki:34 w Białej Ładzie i 27 w Czarnej Ładzie. Dominowały reofile i reobionty. Występowały także niektóre rzadkie na wyżynach gatunki górskie. Stwierdzono sezonowe zmiany liczebności oraz wyraźny negatywny wpływ na wodopójki zanieczyszczenia wody i zabiegów hydrotechnicznych w badanych rzekach.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia; 2013, 68, 1
2083-3563
0066-2232
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential Ecological Risk Index and Metals Residue in Tropical Brackish Water Snail (Pachymelania byronensis Wood, 1828) of the Lower Niger River Basin, Nigeria
Autorzy:
Ikpesu, T. O.
Ezenwaka, C. O.
Powiązania:
https://bibliotekanauki.pl/articles/1177853.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Heavy metals
Pachymelania byronensis
Potential ecological risk index
Rivers
Sediments
Snail
Water
Opis:
The potential ecological risk index (RI) was employed to evaluate water quality and sediment pollution of heavy metals in the fish Town Rivers, Nigeria. The propensity of the presence of the heavy metals residue in a common brackish water snail (Pachymelania byronensis) that serves as food for human was also examined. Fine-grained surficial sediments from natural depositional zones were collected using Ekman dredge, pooled together and analyzed for the present of heavy metals. The snail samples were randomly hand-picked from the edge of the Rivers or attached to the substrata from August, 2017 to January, 2018 depicting wet season (August - October) and dry season (November - January). A total of 144 P. byronensis (24 per station) were sampled for this investigation. The concentrations of the heavy metals concentration in the sediments and snail tissues were analyzed using graphite furnace absorption spectrometry. The order of occurrence of the metal in the snail is Zn > Cu > Fe > Pb > Cd and their levels remain within their permissible safe levels for human consumption as stipulated by the various regulatory bodies. The risk factor for the metals in the sediments revealed that the Rivers is moderately at risk, which may not pose serious environmental threat and health risks to the resident organisms, but may be magnify along the trophic level. Therefore, sensitization of the inhabitants becomes inevitable, since the level is at threshold, above which may be detrimental.
Źródło:
World Scientific News; 2018, 98; 78-88
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Afghanistan’s Transboundary Rivers and Regional Security
Autorzy:
Yıldız, Dursun
Powiązania:
https://bibliotekanauki.pl/articles/1193968.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Afghanistan’s Transboundary Rivers
Central Asian Hydropolitics
Central Asia’s Water
Hydro Politics of Afghanistan
Regional Water Security
Opis:
Aside from the issues peace and stability, one of Afghanistan’s most vital needs is safe and reliable supplies of water. But Afghanistan faces certain economic, political, institutional problems to develop water resources potential. These problems will increase as the years go by. Afghanistan is one of the world’s poorest countries, with an economy largely based on subsistence agriculture. Afghan farmers depend on reliable, year-round sources of surface water and groundwater. Seasonal flows of streams and rivers fed by melting snowpack high in Afghanistan’s mountains recharge alluvial aquifers located in populated valleys and provide city dwellers with drinking water. The current population of Afghanistan is about 31 million and it is projected to increase by nearly 80 percent by the year 2050 to approximately 56 million. This will raise demand on the country’s already economic stressed water resources. Almost all of the river basins are transboundary in the country. The Country due to the political unrest has not participated in many of the agreements regulating water resources in Central Asia. its current “non-player” and "outsider" status of the Central Asian Hydropolitics has to be changed when starting water resources development. This could create an international dispute in future regional water sharing discussions. In addition, recent research suggests that global climate change could alter precipitation patterns in Afghanistan. In particular, both the amount and the timing of snowfall received at higher elevations could change, impacting the major source of water for many areas in Afghanistan. Development of Afghanistan’s most transboundary water resources is a vital need for its own national interest, but it is also directly related with a transboundary water management dispute issue in the region. In other words, Afghanistan should find the best way to develop its transboundary water resources for national development as well as peace and stability of the region. But this development won't be so easy if current amount of water use of riparian states will be same when Afghanistan plans to release smaller amount of water.
Źródło:
World Scientific News; 2015, 16; 40-52
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shaping changes in the ecological status of watercourses within barrages with hydropower schemes : literature review
Autorzy:
Tomczyk, Paweł
Wiatkowski, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/1845360.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
hydropower plants
ecological status
water quality
rivers
environmental impact
aquatic organisms
hydromorphology
physicochemistry
hydrology
Opis:
Hydropower use of watercourses has tangible consequences for the environment, society and economy. Based on a literature review and their own research, the authors present current data on changes in the ecological status of waters within run-of-river and reservoir hydropower plants, i.e. changes in biological elements (benthic macroinvertebrates, plankton, ichthyofauna, macrophytes), as well as hydromorphological and physicochemical changes. Previous researchers have noted that the impact of hydropower use of rivers on ecological status of those rivers is extensive, consisting of, among others, changes in species structure and populations of macrophytes, benthic macroinvertebrates, plankton and ichthyofauna (positive as well as negative changes), algal blooms due to increased turbidity, constrained migration of water organisms, changes in temperature within hydroelectric power plants, the phenomenon of supersaturation, eutrophication, changes in hydrological conditions (e.g., increased amplitudes of diurnal water levels and their consequent annual reduction), and increased erosion below the damming and deposition of bottom sediments on the damming barriers. In addition to such changes in ecological status, hydropower use also has a visible impact on socio-economic conditions (e.g., living standards of the population) and the environment (e.g., quality of bottom sediments and biodiversity). The article offers an assessment of the impact of hydropower use of rivers on ecological status (biological, hydromorphological, physicochemical elements and hydrological conditions of such rivers), society, economy and environment; it also proposes a research scheme to assess the impact of hydropower structures.
Źródło:
Archives of Environmental Protection; 2020, 46, 4; 78-94
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problemy związane z przygotowaniem danych o środowisku w celu przeprowadzenia analiz przestrzennych dla rzek Polski
Problems related to elaboration of environmental data for spatial analyses of Polish rivers
Autorzy:
Barczyńska, M.
Kubacka, D.
Walczykiewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/129882.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geodetów Polskich
Tematy:
ramowa dyrektywa wodna
analiza GIS
rzeki
Polska
Water Framework Directive
GIS analyses
rivers
Polska
Opis:
Dane o środowisku potrzebne do analiz przestrzennych przeprowadzanych dla rzek Polski są w posiadaniu wielu instytucji. Część danych dostępna jest w postaci warstw numerycznych, inne to wyciągi z różnych baz danych, a czasami to tabele oraz mapy papierowe, część przechowywana jest w postaci utrudniającej ich szybkie użycie. Wdrażanie Ramowej Dyrektywy Wodnej oraz konieczność raportowania na poziomie europejskim narzuca konieczność porządkowania i ujednolicania danych. W artykule szczegółowo opisano problemy związane ze zgromadzeniem informacji z terenu Polski, która była niezbędna do wykonania pracy pt. „Opracowanie analizy presji i wpływów zanieczyszczeń antropogenicznych w szczegółowym ujęciu jednolitych części wód powierzchniowych i podziemnych dla potrzeb opracowania programów działań i planów gospodarowania wodami”, zleconej przez Krajowy Zarząd Gospodarki Wodnej. Praca w zakresie wód rzek wykonywana była w Instytucie Meteorologii i Gospodarki Wodnej. Ocenę rzek Polski przeprowadzono na podstawie analiz przestrzennych przy użyciu narzędzi GIS na mapach numerycznych. Wykorzystana została grupa istniejących warstw w ich oryginalnej postaci, inne istniejące warstwy zostały zaktualizowane lub rozbudowane pod względem geometrii i atrybutów, jeszcze inne zostały wykonane od podstaw w oparciu o mapy tradycyjne, bądź o tabele z lokalizacja obiektów związanych z rzekami. W artykule rozważono również problemy dotyczące raportowania do Unii Europejskiej w zakresie ochrony środowiska.
Environmental data needed for spatial analyses performed for the rivers in Poland is in possession of many institutions. The data is partially available in a form of numerical layers, some comes in excerpts from different databases, sometimes there are tables or paper maps, often kept in such way that they are difficult to use. The implementation of the Water Framework Directive and reporting needs on the European level, makes it necessary to organise and standardise the data. In the article, problems connected with acquisition of data from the territory of Poland needed for “Analysis of pressures and impacts on water bodies” commissioned by National Water Management Board has been described in detail. Works for the authorities in charge of river water have been carried out by the Institute of Meteorology and Water Management. The assessment of the Polish rivers was conducted using spatial analysis based on GIS tools and numerical maps. The group of existing layers has been utilised in their original form, other existing layers were updated or extended in view of geometry and attributes, another layers were prepared up from basic level based on traditional maps or tables presenting the location of facilities related to the rivers. In the article, the issues of reporting to the European Union regarding protection of environment are also discussed.
Źródło:
Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2007, 17a; 405-414
2083-2214
2391-9477
Pojawia się w:
Archiwum Fotogrametrii, Kartografii i Teledetekcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie makrofitów w różnych typach nizinnych rzek referencyjnych w Polsce
Differentiation of macrophytes in the reference conditions of different river types in Poland
Autorzy:
Szoszkiewicz, K.
Jusik, Sz.
Ławniczak, A. E.
Zgoła, T.
Szwabińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/339244.pdf
Data publikacji:
2010
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
makrofity
ramowa dyrektywa wodna
rzeki
warunki referencyjne
macrophytes
reference conditions
rivers
Water Framework Directive
Opis:
Badania przeprowadzono na terenie Polski niżowej, z uwzględnieniem odcinków referencyjnych wszystkich typów rzek nizinnych, które zostały wydzielone w naszym kraju na potrzeby Ramowej Dyrektywy Wodnej. Badania terenowe zostały wykonane w okresie od czerwca do września w latach 2003–2007. Badania wykonywano wg makrofitowej metody oceny rzek, na podstawie których obliczono makrofitowy indeks rzeczny MIR, całkowite pokrywanie przez rośliny, udział różnych grup ekologicznych oraz podstawowe wskaźniki różnorodności [liczba gatunków, wskaźnik Shannona-Wienera, równomierności, Simpsona i dominacji]. Oprócz badań biologicznych, na każdym stanowisku przeprowadzono ocenę hydromorfologiczną rzek metodą River Habitat Survey [RHS]. Na wszystkich badanych stanowiskach wykonano także analizy fizykochemicznych cech wody z wykorzystaniem standardowych metod. Analizy te umożliwiły wyodrębnienie czterech makrofitowych typów rzek. Są to: rzeki organiczne, małe rzeki krzemianowe z piaszczystym materiałem dna, małe rzeki krzemianowe z podłożem kamienistym oraz duże rzeki krzemianowe. Porównując obliczone wskaźniki makrofitowe, wykazano, że wskaźniki stanu ekologicznego MIR oraz wskaźniki dominacji miały podobne wartości w różnych typach rzek, natomiast indeksy różnorodności biologicznej oraz całkowite pokrywanie przez makrofity różniły się istotnie między typami. Największą różnorodność gatunkową zaobserwowano w rzekach organicznych, natomiast najmniejszą - w małych rzekach krzemianowych o piaszczystym materiale dna.
Presented analyses were aimed to describe macrophyte development in pristine lowland rivers and to show their variation among various stream types. The study was based on a country-wide survey of Poland with a dataset of 642 sites situated on 367 water courses. Surveyed rivers covered the whole lowland area of Poland and every potential reference site has been checked. During the survey all existing lowland river types were investigated in accordance to WFD requirements. The reference sites were selected from the whole database. Reference conditions were defined using four criteria: catchment land use, hydromorphological features, water quality and biological assessment. Based on chosen criteria, the database of reference lowland rivers included 40 sites. To classify plant data, twoway indicator species analysis Twinspan was used, which resulted in distinguishing 4 evident endclusters which differed in plant composition. These were: organic rivers and 3 types of siliceous rivers (small with sandy substrate, small with stony substrate and large rivers). For each of the revealed river types several macrophyte metrics were calculated. The numerical index MIR [Macrophyte Index for Rivers] did not significantly differ between river types while four diversity metrics: species richness, Shannon index, evenness and Simpson index differed significantly between river types. Moreover, the share of different structural forms of macrophytes was also diversified between river types.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2010, 10, 3; 297-308
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 28

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