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1. VULNERABILITY OF THE BIOLOGICAL ELEMENTS OF RIVER BED ECOSYSTEM ON REGULATORY WORKS

Author

Justyna Hachoł and Elżbieta Bondar-Nowakowska

Subjects
vulnerability, ecological risk, aquatic plants, biodiversity, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350
Abstract

The vulnerability of the system to changes is an additional factor 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.

Published
2017
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2. ECOLOGICAL RISK ASSESSMENT IN THE REGULATED WATERCOURSES

Author

Elżbieta Bondar-Nowakowska and Justyna Hachoł

Subjects
aquatic vascular plants, ecological risk, river, regulation, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350
Abstract

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.

Published
2015
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3. Hierarchia oddziaływania wybranych elementów systemu koryta cieku na rośliny wodne

Author

Justyna Hachoł and Elżbieta Bondar-Nowakowska

Subjects
makrofity wodne, rzeki, regulacja rzek, konserwacja, Environmental technology. Sanitary engineering, TD1-1066, Environmental engineering, TA170-171
Abstract

W pracy podjęto próbę określenia hierarchii elementów systemu koryta cieku, które są kształtowane przez roboty regulacyjne i konserwacyjne, decydujących o składzie jakościowym i ilościowym zbiorowisk makrofitów wodnych. Badania terenowe wykonano w korytach 29 małych i średnich cieków nizinnych Dolnego Śląska. Na ciekach tych wyznaczono 100 odcinków badawczych. Badania obejmowały pomiar i opis wybranych elementów złożonego systemu koryta cieku, takich jak: spadek podłużny, szerokość dna, głębokość koryta, nachylenie skarp oraz sposób ich umocnienia, substrat dna, liczba gatunków roślin wodnych oraz pokrycie dna przez rośliny. Do określenia hierarchii oddziaływania rozpatrywanych elementów systemu cieku na skład jakościowy i ilościowy zbiorowisk roślin wodnych wykorzystano teorię zbiorów przybliżonych. Jej zastosowanie pozwoliło na określenie kolejności oddziaływania: pojedynczych elementów rozpatrywanego systemu koryta cieku, par tych elementów, zespołów złożonych z trzech oraz z czterech elementów na liczbę gatunków roślin wodnych występujących w cieku oraz na stopień pokrycia przez nie dna.

Published
2015
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4. Contributors

Author

Knut Ola Aamodt, Skuja Agnija, Briede Agrita, Nuray (Emir) Akbulut, Aydın Akbulut, Margarita Alexevnina, Hans E. Andersen, Nikolas A. Arnaut, Sophie Ayrault, Mikhail Baklanov, Carole Barthélemy, Jürgen Bäthe, Christian Baumgartner, Serdar Bayarı, Horst Behrendt, Jean-Nicolas Beisel, Vitali V. Bekh, François Bertrand, Gilles Billen, Thomas Bittl, Hélène Blanchoud, Jürg Bloesch, Jim Bogen, Alberto Borges, Elena Borovikova, Jean-Paul Bravard, Vanessa Bremerich, John E. Brittain, Sturla Brørs, Catherine Carré, Georges Carrel, Emmanuel Castella, Dubravka Čerba, Régis Cereghino, Grigory Chuiko, F. Comiti, Alexandra Coynel, Béla Csányi, Francis Dauba, Alain Dauta, Grigore Davideanu, François Delmas, Ghislain de Marsily, Jean-Pierre Descy, Doriane Destrieux, Martin Dokulil, Marie-José Dole-Olivier, Alain Dutartre, Svetlana Dvinskikh, Jon Arne Eie, Parele Elga, Arturo Elosegi, Tatiana V. Eremkina, Henri Etcheber, null Euvgeny, Etienne Everbecq, Per Einar Faugli, Maria Joao Feio, Thibaut Feret, Helmut Fischer, Nicolas Flipo, Mathieu Floury, Georg Frank, Nikolai Friberg, Aleksandra Gancarczyk, Josette Garnier, Johnny Gasperi, Yury Gerasimov, Magali Gerino, Gavrilova Ģertrūde, Chris N. Gibbins, Stankūnavičius Gintautas, Gísli M. Gíslason, Rosa Gómez, Paul Gonthier, Manuel A.S. Graça, Iulia Grecu, Cecile Grosbois, B. Gumiero, Sprinǵe Gunta, Justyna Hachoł, Svein Haugland, Thomas Hein, Alan G. Hildrew, Carl.C. Hoffmann, Nils Arne Hvidsten, Kokorīte Ilga, Anna Istomina, Druvietis Ivars, Sonja C. Jähnig, Arne J. Jensen, Jean Joachim, Celia Joaquim-Justo, Dmitry Karabanov, Ioannis Karaouzas, Viktor M. Katolikov, Patrick Kestemont, Alexander Kitaev, Sergey. K. Kochanov, Alexander V. Kokovkin, Ludmila Korneva, Vladimír Kováč, Brian Kronvang, Leonid A. Kudersky, Vyacheslav V. Kuzovlev, Jan Henning L'Abée-Lund, Thibault Lambert, Nicolas Lamouroux, Adrien Latli, Valentina Lazareva, Maria Leitao, Laurence Lestel, Rob S.E.W. Leuven, Boris Levin, Puy Lim, Alexander Litvinov, Nataliya S. Loboda, Zalewski Maciej, B. Maiolini, Florian Malard, Iain A. Malcolm, Łapińska Małgorzata, Björn Malmqvist, Melnik Maria, Schletterer Martin, Kjetil Melvold, Michel Meybeck, Tibor Mikuska, Camille Minaudo, Natalya Mineeva, Florentina Moatar, Cédric Morana, F. Moroni, Jean-Marie Mouchel, Isabel Muñoz, Timo Muotka, Iulian Nichersu, Christer Nilsson, Victor Noskov, Franciszek Nowacki, Alexander Okhapkin, Jón S. Ólafsson, Jean-Michel Olivier, Naciye Nur Özyurt, Karin Pall, Vladimir Papchenkov, Isabel Pardo, Momir Paunović, Morten L. Pedersen, Svetlana Perova, Vegard Pettersen, Hervé Piégay, Lise-Marie Pigneur, Vasily I. Ponomarev, Carmen Postolache, Elena Presnova, Anne Probst, Ekaterina Pryanichnikova, Martin Pusch, Maja Raković, Jean-Pierre Rebillard, Skorupskas Ričardas, Gaumiga Ritma, Christopher T. Robinson, Stéphane Rodrigues, Fleur Roland, Anna M. Romaní, Sergi Sabater, Yalcın Sahin, Svein Jakob Saltveit, José-Miguel Sánchez-Pérez, Leonard Sandin, Cristina Sandu, Sabine Sauvage, Martin Schletterer, Laurent Schmitt, Martin Schneider-Jacoby, Franz Schöll, Matthias Scholten, Elena Seletkova, Pierre Servais, Grigory Shcherbina, Oleksandra O. Shumilova, Galina Shurganova, Boris G. Skakalsky, Nikolaos Th Skoulikidis, Nike Sommerwerk, Yves Souchon, Chris Soulsby, Katharina Stefke, Sonja Stendera, Angelina S. Stenina, Irina Stepanova, Alexander N. Sukhodolov, Lars M. Svendsen, Eric Tabacchi, Evelyne Tales, Doerthe Tetzlaff, Henn Timm, Klement Tockner, Ion Toderaş, Diego Tonolla, Alexander Tsvetkov, Urs Uehlinger, Laurent¸ia Ungureanu, Marin A. Usatii, Philippe Usseglio-Polatera, Gerard Van der Velde, Gisèle Verniers, Philippe Vervier, Irina Voroshilova, Karl Mathias Wantzen, Ewa Wnuk-Gławdel, Christian Wolter, Margarita I. Yarushina, Christiane Zarfl, null Zinov'ev, and Stamatis Zogaris

Published
2022

5. Factors Influencing Macrophyte Species Richness in Unmodified and Altered Watercourses

Author

Justyna Hachoł, Elżbieta Bondar-Nowakowska, and Ewa Nowakowska

Subjects
0106 biological sciences, Ecology, 010604 marine biology & hydrobiology, Environmental Chemistry, Environmental science, River regulation, 010501 environmental sciences, 01 natural sciences, 0105 earth and related environmental sciences, General Environmental Science, Macrophyte
Published
2018

6. Applying the Analytical Hierarchy Process (AHP) into the effects assessment of river training works

Author

Justyna Hachoł, Mateusz Hämmerling, and Elżbieta Bondar-Nowakowska

Subjects
0106 biological sciences, Sustainable development, lcsh:TC401-506, sustainable development, Environmental Engineering, Operations research, Flood myth, Process (engineering), 010604 marine biology & hydrobiology, Geography, Planning and Development, Analytic Hierarchy Process (AHP), Analytic hierarchy process, lcsh:River, lake, and water-supply engineering (General), 010501 environmental sciences, Development, 01 natural sciences, Agricultural and Biological Sciences (miscellaneous), Training (civil), Field (computer science), river training works, Ranking, multicriterial analysis, Stage (hydrology), 0105 earth and related environmental sciences, Water Science and Technology
Abstract

The aim of the following study was to compare a few methods of river regulations and indicate the one which fully meets technical regulative standard and concurrently ensures protection of the watercourse ecosystem. According to the sustainable development rules it is of the most importance in every human activity to compromise between developmental and environmental needs of current and future generations. Therefore, both technical criteria related to flood safety and environmental ones were taken into consideration in the analysis. Field study was conducted in vegetation stage between 2008 and 2014 in small and medium lowland watercourses in Lower Silesia. The research comprised of measurements and descriptions of selected technical and environmental elements of a complex system of the watercourse river bed. Basing on obtained results a multicriterial assessment of the effects of the works was conducted. In order to assess the results an Analytic Hierarchy Process (AHP) was used in the study. It facilitated the creation of linear ranking of river beds and indicate the most optimal solution in terms of sustainable development. Such methods have not been applied in solving problems connected with river regulation. That’s why this study aims also at checking the utility of this method in decision making in both planning and regulation works realization. Results of the study indicate high usefulness of AHP method in the decision-making process.

Published
2017

7. VULNERABILITY OF THE BIOLOGICAL ELEMENTS OF RIVER BED ECOSYSTEM ON REGULATORY WORKS

Author

Elżbieta Bondar-Nowakowska and Justyna Hachoł

Subjects
0106 biological sciences, aquatic plants, vulnerability, Vulnerability, Biodiversity, ecological risk, 010603 evolutionary biology, 01 natural sciences, lcsh:TD1-1066, River bed, Aquatic biodiversity research, Aquatic plant, Ecological risk, Ecosystem, lcsh:Environmental technology. Sanitary engineering, lcsh:Environmental sciences, Ecology, Evolution, Behavior and Systematics, biodiversity, General Environmental Science, lcsh:GE1-350, business.industry, Ecology, 010604 marine biology & hydrobiology, Environmental resource management, Environmental science, business
Abstract

The vulnerability of the system to changes is an additional factor 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.

Published
2017

8. Aquatic plants–based risk model for assessment of ecological safety of rivers

Author

Justyna Hachoł and Elżbieta Bondar-Nowakowska

Subjects
0106 biological sciences, business.industry, 010604 marine biology & hydrobiology, Health, Toxicology and Mutagenesis, Ecological Modeling, Ecological safety, Environmental resource management, Environmental engineering, 010501 environmental sciences, 01 natural sciences, Pollution, River bed, Natural (archaeology), Risk model, Habitat, Environmental safety, Aquatic plant, Environmental science, Ecosystem, business, 0105 earth and related environmental sciences
Abstract

In order to ensure the ecological safety in river beds, each project affecting it must be subjected to an evaluation in terms of its implementation results on the river habitats. Technical activities in the river beds can cause irreversible changes in their biocenosis. However, due to the lack of a method that allows us to predict these changes, the decisions made by designers and contractors can be evaluated only after completing the investment. Therefore, it is necessary to elaborate a method to evaluate the environmental safety in regulated and maintenanced rivers. This article presents a model that allows us to predict the changes in vascular aquatic plant communities, which result from technical interference in the river bed. The model was elaborated based on the results of the study performed in 2007–2011 in natural and transformed lowland watercourses from Lower Silesia area (Poland). It takes into account the elements of the watercourse bed ecosystem, which significantly affect the magnitu...

Published
2016

10. The risk as a measure of ecological safety in watercourses

Author

Justyna Hachoł and Elżbieta Bondar-Nowakowska

Subjects
Measure (data warehouse), Environmental Engineering, business.industry, Aquatic ecosystem, Geography, Planning and Development, Ecological safety, Environmental resource management, Technical risk, Development, Hazard analysis, Agricultural and Biological Sciences (miscellaneous), Hazard, Environmental science, Ecological risk, business, Risk classification, Water Science and Technology
Abstract

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.

Published
2014

11. Regulation of submersed macrophyte biomass in a temperate lowland river: Interactions between shading by bank vegetation, epiphyton and water turbidity

Author

Sabine Hilt, Jan Köhler, and Justyna Hachoł

Subjects
Hydrology, Biomass (ecology), Ecology, Plant Science, Aquatic Science, Macrophyte, Water column, Aquatic plant, medicine, Environmental science, Shading, Water quality, medicine.symptom, Eutrophication, Vegetation (pathology)
Abstract

Growth of aquatic vegetation is often controlled by light supply, which is potentially decreased by bank vegetation, water turbidity and epiphytic biofilm. To understand the relative importance of these shading factors and the interactions between them we analysed the seasonal course of macrophyte biomass, shading by bank vegetation, turbidity of the water column and epiphytic light absorption in shaded and sunny sections of a temperate eutrophic lowland river. At a shaded site, bank vegetation decreased the light supply by 79%, 0.5 m water column by 45% and 2-week-old epiphyton by 28% during the vegetation period. Growth of submersed macrophytes, but not of epiphyton, was light-limited in the shaded sections. We found a saturation-type correlation between light supply and macrophyte biomass. Therefore, the additional light absorption of the water column or epiphyton only shortened the period of optimum light supply at the sunny site, but was crucial for macrophyte development at the shaded site. Light absorption of phytoplankton was most important in spring and that of epiphyton in late summer. Submersed macrophytes effectively retained particles and thus improved light supply of downstream stands, but this positive feedback effect was only relevant for shaded sections in summer.

Published
2010

12. List of Contributors

Author

Aydin Akbulut, Nuray (Emir) Akbulut, Jurij V. Aleksandrov, Margarita S. Alexevnina, Claude Amoros, Hans E. Andersen, N.A. Arnaut, Hartmut Arndt, Mikhail A. Baklanov, Jürgen Bäthe, Christian Baumgartner, Serdar Bayarl, Horst Behrendt, V.V. Bekh, Jürg Bloesch, B. Boz, Jean-Paul Bravard, John E. Brittain, Jim Bogen, Agrita Briede, Sturla Brørs, Georges Carrel, Jean-Pierre Descy, Marie-José Dole-Olivier, Ivars Druvietis, Svetlana A. Dvinskikh, Alcibiades N. Economou, Jon Arne Eie, Tatjana V. Eremkina, Per Einar Faugli, Maria Feio, Helmut Fischer, Nikolai Friberg, Aleksandra Gancarczyk, Ritma Gaumiga, Ģsertrude Gavrilova, Yuri V. Gerasimov, Chris N. Gibbins, Gísli M. Gíslason, Manuel A.S. Graça, Konstantinos C. Gritzalis, B. Gumiero, Justyna Hachoł, Svein Haugland, Thomas Hein, Alan G. Hildrew, Carl. C. Hoffmann, Nils Arne Hvidsten, Arne J. Jensen, V.M. Katolikov, Ludmila G. Khokhlova, Alexander B. Kitaev, Sergej K. Kochanov, Alexander V. Kokovkin, Ludmila G. Korneva, Brian Kronvang, L.A. Kudersky, Jan Henning L'Abée-Lund, Nicolas Lamouroux, Małgorzata Łapińska, Valentina I. Lazareva, Rob. S. E. W Leuven, Alexander S. Litvinov, N.S. Loboda, B. Maiolini, Florian Malard, Iain A. Malcolm, B. Malmqvist, Marina M. Mel'nik, Kjetil Melvold, Natalya M. Mineeva, F. Moroni, Isabel Muñoz, T. Muotka, C. Nilsson, Victor M. Noskov, Franciszek Nowacki, Alexander G. Okhapkin, Jón S. Ólafsson, Jean-Michel Olivier, Vaida Olšauskytè, Ana Ostojić, Vladimir G. Papchenkov, Elga Parele, Momir Paunović, Morten L. Pedersen, Fabian D. Peter, Vegard Pettersen, Lars-Evan Petterson, Vasily I. Ponomarev, Elena V. Presnova, Martin Pusch, M. Rinaldi, Christopher T. Robinson, Anna M. Romaní, Sergi Sabater, Yalçln Şahin, Svein Jakob Saltveit, Leonard Sandin, Martin Schneider-Jacoby, Franz Schöll, Matthias Scholten, Elena B. Seletkova, Grigory Kh. Shcherbina, Galina V. Shurganova, Rosi Siber, B.G. Skakalsky, Ričardas Skorupskas, Nikolaos Th. Skoulikidis, Nike Sommerwerk, Chris Soulsby, Gunta Sprińǵe, Bernhard Statzner, Sonja Stendera, Angelina S. Stenina, A.N. Sukhodolov, N. Surian, Lars M. Svendsen, Doerthe Tetzlaff, H. Timm, Klement Tockner, Diego Tonolla, Urs Uehlinger, M.A. Usatii, Karl M. Wantzen, Ewa Wnuk-Gławdel, Christian Wolter, Margarita I. Yarushina, Maciej Zalewski, Euvgeny A. Zinov'ev, Stamatis Zogaris, Vaida Olšauskyté, and Riĉardas Skorupskas

Published
2009

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