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    Tytuł:
    Vulnerability of the Biological Elements of River Bed Ecosystem on Regulatory Works
    Autorzy:
    Hachoł, J.
    Bondar-Nowakowska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/124219.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    vulnerability
    ecological risk
    aquatic plants
    biodiversity
    Opis:
    The vulnerability of the system to changes is an additional factor that is often taken into account in risk analysis. Usually this assessment takes into account only two elements – probability and consequences of an event. The study attempts to assess the vulnerability of vascular aquatic plant communities to the qualitative and quantitative changes as a result of regulatory works in a river bed. The aim of the paper is to assess the possibility of using biological indicators, commonly used in assessing the status of aquatic ecosystems, as indicators of the vulnerability of analyzed communities. These are: the number of plant species, the degree of their bottom coverage, Shannon-Wiener diversity index, Pielou evenness index and ecological status. Field studies were carried out in growing seasons from 2008–2014 in small and medium-sized lowland watercourses in Lower Silesia. The field study included an inventory of vascular aquatic plants. Based on the results of the research, values of biological indicators were calculated and statistical analysis (cluster analysis and Spearman’s rank correlation) were performed. On this basis it was found that the number of aquatic plants species and diversity index may be indicators of the vulnerability of plant communities to the changes as a result of river regulation.
    Źródło:
    Journal of Ecological Engineering; 2017, 18, 2; 51-56
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metals in organs of bottom sediments and aquatic plants of the Ełk River and its tributaries
    Autorzy:
    Skorbiłowicz, E.
    Skorbiłowicz, M.
    Zamojska, E.
    Wójtowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/184486.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    river
    metals
    bottom sediments
    aquatic plants
    Opis:
    The aim of the work was to analyze the content of Ni, Pb and Cd in organs (root, stem, leaf) Typha latifolia L. and Nuphar lutea as well as bottom sediments of the Ełk River and selected tributaries. An attempt was also made to indicate the factors and processes governing the behavior of the investigated metals in the water environment of the examined rivers. The research object was the Ełk River with its three tributaries - the Gawlik River, the Binduga River and the Kuwasy Canal. Samples of bottom sediments, leaves, stems and roots of Typha latifolia L. and Nuphar lutea were collected in August of 2015. The content of metals was determined by flame atomic absorption spectrometry (F-AAS). The results of analyses of sediments and plant material indicate a lack of environmental pollution by nickel (2.58-8.50 mg-kg-1) and lead (3.82-15.99 mg-kg-1) of the Ełk River and its tributaries whereas the cadmium content ranged from 0.16-0.76 mg-kg-1. Nuphar lutea and Typha latifolia L. showed a varied capacity to accumulate nickel (1.20-10.51 mg-kg-1) and lead (0.04-14.16 mg-kg-1), occurring primarily in the roots. The smallest concentration of nickel and lead was recorded in the stems. The highest concentration of cadmium (2.56 mg-kg-1) was noted in the roots and the lowest (0.01 mg-kg) in the leaves. Factor analysis pointed to the processes of mobilizing elements from bottom sediments as a result of pH drop and their uptake by macrophyte roots and sorption processes of metal ions by macrophytes from river waters and their intensive accumulation in bottom sediments.
    Źródło:
    Geology, Geophysics and Environment; 2018, 44, 3; 281-293
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zinc and lead in bottom sediments and aquatic plants in river Narew
    Autorzy:
    Skorbiłowicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/124796.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    river
    bottom sediment
    aquatic plants
    zinc
    lead
    Opis:
    Aquatic ecosystems are a valuable part of natural environment. The increasing level of pollution in waters transforming biocoenoses and other adverse effects of the impact of toxic substances have contributed to the development of biological monitoring. The aim of the study was to determine the changes in contents of zinc and lead in bottom sediments and roots of aquatic plants: Phragmites australis and Acorus calamus in the river Narew. There were 14 points on the river, from where samples of bottom sediments and plant material were collected. The contents of lead and zinc were determined by means of flame atomic absorption spectrophotometry using Varian device. It was proven that bottom sediments were characterized by low contents of zinc and lead except from two sampling points: in Bondary and Narew. Achieved results of analyzes of plant material showed a slight exceeding in the case of lead. Spatial distribution of zinc and lead contents in examined roots of plants coincided with their contents in bottom sediments, which was also confirmed by statistical analysis. It was proven that aquatic plants had greater tendency for accumulation of metals than bottom sediments.
    Źródło:
    Journal of Ecological Engineering; 2015, 16, 1; 127-134
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An effect of regulatory works range on ecological changes in watercourse bed
    Autorzy:
    Bondar-Nowakowska, E.
    Hachoł, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/101542.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    species similarity
    regulation
    aquatic plants
    species biodiversity
    river
    Opis:
    This paper attempts to assess an effect of the range of regulatory works in watercourse beds on the aquatic plant communities. The results of field studies carried out on sections transformed as a result of regulatory works and the non-altered sections were compared for this purpose. The field studies were conducted in growing seasons in years 2008-2014 on 11 small and medium-sized lowland watercourses in Lower Silesia. They included identification of aquatic plant species and estimation of the degree of bottom coverage with them. The assessment was based on analysis of changes in the values of five biological indicators such as: the number of aquatic plant species, Jaccard similarity coefficient, ecological status, Shannon-Wiener biodiversity index and Pielou`s evenness index. Comparative analyzes enabled to determine the qualitative and quantitative changes in the aquatic plant communities. However, they did not show any correlation between the analyzed biological indicators and the range of regulatory works in watercourse beds.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1129-1142
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    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:
    Ecological risk assessment in the regulated watercourses
    Autorzy:
    Bondar-Nowakowska, E.
    Hachoł, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/125007.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    aquatic vascular plants
    ecological risk
    river
    regulation
    Opis:
    Ecological risk has not been identified well enough for the designers and contractors to take any actions for its limitation. It results from the lack of the basis formed to assess its level objectively. The aim of this study was to determine the standards useful in the evaluation of the ecological risk for aquatic plants in rivers, where it is planned to conduct regulatory works. The basis for the analysis were the results of the study performed in 2008–2014 in unmodified and transformed lowland watercourses in Lower Silesia. 41 study sections were analysed in 11 watercourses. 30 sections were located in regulated watercourses, while 11 were in unmodified streams. The research included vascular aquatic plants identification and the degree of the bottom coverage by these plants. As a result of regulatory works qualitative and quantitative changes in aquatic plants communities were observed. The analysis of these changes concerning the range and conditions of works conduction enabled assigning measures to the factors of the considered risk. It served as a basis for describing the risk register and the matrix of risk. The study demonstrated that the most important threats resulting from the river regulation from the point of view of environmental protection are complete shading of watercourse bed, and in some cases, bed widening and deepening, embankments slope of 1: 1, 1: 0, embankments protection with stone material or their concreting.
    Źródło:
    Journal of Ecological Engineering; 2015, 16, 5; 183-189
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecological Risk Classification in the Regulated and Conserved Watercourses
    Klasyfikacja ryzyka ekologicznego w ciekach regulowanych i konserwowanych
    Autorzy:
    Hachoł, J.
    Bondar-Nowakowska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/388947.pdf
    Data publikacji:
    2011
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    ryzyko ekologiczne
    naczyniowe rośliny wodne
    roboty konserwacyjne
    regulacja cieków
    aquatic vascular plants
    ecological risk
    maintenance works
    watercourses regulation
    Opis:
    The subject of the following study is ecological risk in regulatory and maintenance works conducted in small and medium-sized lowland watercourses. Risk has not been identified well enough. It results from the lack of the data to assess its level objectively. The following research presents a proposal of solving the problem. The results of the field work conducted between 2007 and 2008 on 10 Lower Silesian lowland watercourses form a basis for this analysis. The research included hydromacrophytes identification and the degree of the bottom coverage by these aquatic plants. The following study showed that in a result of regulatory and maintenance works quality and quantity alternations in aquatic plants communities were observed. The analysis of these alternations enabled assigning measures to the factors of considered risk. It served as a basis for describing the matrix of risk classification. Risk classification method suggested in the study may be useful in designing plans concerning ecological risk management and at the determination of the safety management rules in case of technical interferences in the watercourses.
    Przedmiotem pracy jest ryzyko ekologiczne w robotach regulacyjnych i konserwacyjnych wykonywanych na małych i średnich ciekach nizinnych. Ryzyko to nie jest jeszcze dobrze rozpoznane. Wynika to m.in. z braku podstaw do obiektywnej jego oceny. W pracy przedstawiono propozycję rozwiązania tego problemu. Podstawę analizy stanowią wyniki badań terenowych prowadzonych w latach 2007-2008, na 10 nizinnych ciekach Dolnego Śląska. Badania obejmowały identyfikację występujących w korycie gatunków naczyniowych roślin wodnych oraz określenie stopnia pokrycia przez nie dna. Wykazały one, że w wykonanych prac zachodzą zmiany jakościowe i ilościowe w zbiorowiskach naczyniowych roślin wodnych. Analiza tych zmian pozwoliła na przypisanie miar czynnikom rozpatrywanego ryzyka. Stanowiło to podstawę opracowania macierzy klasyfikacji ryzyka. Zaproponowana w pracy metoda klasyfikacji ryzyka może być przydatna w opracowywaniu planówzarządzania ryzykiem ekologicznym oraz przy określaniu zasad zarządzania bezpieczeństwem środowiska przyrodniczego w przypadkach ingerencji technicznych w korytach cieków.
    Źródło:
    Ecological Chemistry and Engineering. A; 2011, 18, 12; 1763-1776
    1898-6188
    2084-4530
    Pojawia się w:
    Ecological Chemistry and Engineering. A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecological risk classification in the regulated and conserved watercourses
    Klasyfikacja ryzyka ekologicznego w regulowanych i konserwowanych ciekach
    Autorzy:
    Hachoł, J.
    Bondar-Nowakowska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/126388.pdf
    Data publikacji:
    2012
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    aquatic vascular plants
    ecological risk
    maintenance works
    watercourses regulation
    ryzyko ekologiczne
    naczyniowe rośliny wodne
    roboty konserwacyjne
    regulacja cieków
    Opis:
    The subject of the following study is ecological risk in regulatory and maintenance works conducted in small and medium-sized lowland watercourses. Risk has not been identified enough for the designers and contractors to take any actions for its limitation. The following research presents a proposal of solving the problem on an example of alternations in hydromacrophytes communities. The results of the field work conducted between 2007 and 2008 on 10 regulated, maintained and unmodified Lower Silesian lowland watercourses form a basis for this analysis. The research included hydromacrophytes identification and the degree of the bottom coverage by these aquatic plants. The analysis of quality and quantity alternations in aquatic plants communities concerning the range and conditions of works conduction enabled assigning measures to the factors of considered risk. It served as a basis for describing the matrix of risk classification. Three risk levels were accepted - low, moderate and high.
    Przedmiotem pracy jest ryzyko ekologiczne w robotach regulacyjnych i konserwacyjnych wykonywanych na małych i średnich ciekach nizinnych. Ryzyko to nie jest jeszcze rozpoznane w stopniu pozwalającym projektantom oraz wykonawcom robót na podjęcie działań mających na celu jego ograniczanie. W pracy przedstawiono propozycję rozwiązania tego problemu na przykładzie zmian w zbiorowiskach naczyniowych roślin wodnych. Podstawę analizy stanowią wyniki badań terenowych prowadzonych w latach 2007-2008 na 10 uregulowanych, konserwowanych oraz nieprzekształconych nizinnych ciekach Dolnego Śląska. Badania obejmowały identyfikację występujących w korycie gatunków naczyniowych roślin wodnych oraz określenie stopnia pokrycia przez nie dna. Wykazały one, że w następstwie prac regulacyjnych i konserwacyjnych zachodzą zmiany jakościowe i ilościowe w zbiorowiskach naczyniowych roślin wodnych. Analiza tych zmian, z uwzględnieniem zakresu oraz warunków wykonania robót, pozwoliła na przypisanie miar czynnikom rozpatrywanego ryzyka. Stanowiło to podstawę opracowania macierzy klasyfikacji ryzyka. Przyjęto w niej 3 poziomy ryzyka - niskie, umiarkowane oraz wysokie.
    Źródło:
    Proceedings of ECOpole; 2012, 6, 2; 517-522
    1898-617X
    2084-4557
    Pojawia się w:
    Proceedings of ECOpole
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transformation and simplification of aquatic vegetation structure and reoligotrophication of a lake during the last 40 years
    Autorzy:
    Brzozowski, M.
    Pelechata, A.
    Kaczmarek, L.
    Pelechaty, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130559.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    aquatic vegetation
    vascular plants
    charophytes
    Chara-lake
    water fertility
    Lychnothamnus barbatus
    Nitellopsis obtusa
    Opis:
    The recovery or reconstruction of aquatic vegetation has recently been reported as a result of water quality improvement aer anthropogenic eutrophication. The objectives of this study were: to investigate long-term trends in aquatic vegetation abundance in relation to decreasing water fertility and to present new directions in changes of the submerged aquatic vegetation structure, species richness, and biodiversity in Lake Kuźnickie (western Poland) with the perspective of the last 40 years (1978–2018). Lake Kuźnickie is an example of water quality improvement taking place without any additional reclamation measures, except a reduction in nutrient discharge into the lake from its direct catchment. Currently, the study lake represents a mesotrophic status. The Trophy State Index evidenced a decrease in the lake’s fertility compared to previous decades. The water quality improvement manifests in a significant reduction in the total phosphorus concentration. An analysis of the spatial changes in the phytolittoral evidenced a decrease in rush vegetation between 1978 and 2018 by over 2 ha. In the period 1978–2018, the aquatic vegetation structure in Lake Kuźnickie underwent significant reconstruction. Currently, charophytes play a much greater role in the lake compared to the last 40 years, contributing to the maintenance of the lake’s high water quality. Moreover, the endangered charophyte Lychnothamnus barbatus has recovered. Concurrently, however, the biodiversity and species richness of the submerged vegetation has decreased. At present, only four species dominate in the lake, including two charophytes L. barbatus, Nitellopsis obtusa, and two vascular plants Ceratophyllum demersum and Myriophyllum spicatum. Over 40 years, Lake Kuźnickie has changed from a eutrophic lake dominated by vascular plants to a mesotrophic lake with a codominant contribution by charophytes. The lake is characterized by good water quality, optimal for the development of aquatic vegetation, especially charophytes.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2021, 90
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    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
      Wyświetlanie 1-10 z 10

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