@article{2-s2.0-85184045990,

title = {Multi-criteria assessment of factors affecting the reduction of retention capacity of dam reservoirs},

author = { Ł. Pieron and D. Absalon and M. Matysik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184045990&doi=10.1525%2felementa.2023.00069&partnerID=40&md5=c630bf08fe768c98aa183f41beb2f02f},

doi = {10.1525/elementa.2023.00069},

issn = {23251026},

year  = {2024},

date = {2024-01-01},

journal = {Elementa},

volume = {12},

number = {1},

publisher = {University of California Press},

abstract = {Maintaining the appropriate capacity of a retention reservoir is necessary for the optimal performance of the functions for which it was built, including flood and drought protection. Therefore, to properly manage individual reservoirs and sediments within their catchments, it is necessary to analyze the factors affecting the reduction of the retention capacity of reservoirs. Our study proposes a methodology for conducting a multi-criteria assessment of anthropogenic pressures and natural impacts affecting the reduction of reservoir capacity, such as land use, hydrographic network density, hydraulic development, and land slopes. For this purpose, geospatial analyses were applied to a grid of basic fields (hexagons). The research procedure showed that land slopes in the catchment area are the key factor determining the supply of sediment to the reservoir. Our study focused on the basins of reservoirs located in the southern part of Poland: Goczałkowice on the Vistula, Rozn _ ów on the Dunajec, and Tresna on the Soła. However, our proposed new approach to multi-criteria assessment of reservoirs can be applied to and implemented in other catchments. The application of solutions based on our study may contribute to maintaining or potentially increasing the level of water retention in reservoirs and their catchment areas. Copyright: © 2024 The Author(s).},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85184401396,

title = {Dammed context: Community perspectives on ecosystem service changes following Poland's first dam removal},

author = { M. Habel and K. Mechkin and I. Wagner and Z.J. Grabowski and Z. Kaczkowski and D. Absalon and D. Szatten and M. Matysik and S. Pytel and T.E. Jurczak and K. Obolewski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184401396&doi=10.1002%2fldr.5053&partnerID=40&md5=9c798886725445ff0a85e1ae54ee7d09},

doi = {10.1002/ldr.5053},

issn = {10853278},

year  = {2024},

date = {2024-01-01},

journal = {Land Degradation and Development},

publisher = {John Wiley and Sons Ltd},

abstract = {Decisions to build or remove dams and other large engineered hydraulic infrastructures are always entangled in social and environmental impacts, which are often evaluated formally through bureaucratic processes. In Europe dam removals are relatively infrequent, even though extensive hydraulic infrastructure has degraded biodiversity and water quality. The Wilkówka dam in southern Poland was required to be removed rapidly, primarily due to engineering failures during its construction. Using survey methods, we examine the local community's perceptions of the net environmental and social impacts of the Wilkówka dam removal. In surveying the opinions of households, 62% of respondents expressed that decisions about the removal were taken without sufficient community consultation, and 92% felt that the dam had been removed despite their opposition. Although the dam had been built recently and had failed to operate at design capacity, respondents reported strong attachments to the services they perceived it to provide, including water supply, flood regulation and cultural significance. In spite of the possibility of an environmental disaster and long-term environmental degradation, most surveyed households would have preferred it to have been renovated or reconstructed. In short, the removal of the Wilkówka dam was perceived by local households but also by local officials as bringing about a net loss in socially relevant ecosystem services, despite the urgent need for removal perceived by regional and national authorities. The local community's rapid attachment to the dam despite its potential negative impacts on biodiversity and the local environment were primarily attributable to the high expectations as to the hydrological services that the dam was to provide (water supply; flood regulation and its larger symbolic value as an infrastructural investment in the community). This work provides an empirical demonstration of the importance of understanding the social, ecological and technological context within decision-making processes regarding dam removals, and its implications may improve the planning and implementation of future dam removal projects. © 2024 The Authors. Land Degradation & Development published by John Wiley & Sons Ltd.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85174948183,

title = {Verification of the consistency of surface water spatial databases and their importance for water management in Poland},

author = { N. Janczewska and M. Matysik and D. Absalon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174948183&doi=10.1016%2fj.ejrh.2023.101486&partnerID=40&md5=27b9c5d278a0c628d88a8a391706ceea},

doi = {10.1016/j.ejrh.2023.101486},

issn = {22145818},

year  = {2023},

date = {2023-01-01},

journal = {Journal of Hydrology: Regional Studies},

volume = {49},

publisher = {Elsevier B.V.},

abstract = {Study region: The research was carried out in 38 rivers in the Oder and Vistula basins. They are located in various parts of Poland, which are geologically, geomorphologically and anthropogenically diversified. Study focus: The paper deals with the inconsistency and incorrectness of applied spatial data in water management. This is caused due to the lack of a unified method of creation and different data sources. The analysis covered three databases used in Polish water management: the digital Map of the Polish Hydrographic Division (MPHP), the Database of Topographic Objects (BDOT) and the Drainage System Database (EM). The Geographic Information Systems and statistical methods (Pearson's; Kendall's and Spearman's coefficients) were used to study the occurrence and size of discrepancies in Polish databases of surface waters. New hydrological insights for the region: The study showed that in the analysed databases there are discrepancies in the nomenclature (47% cases) and watercourse lengths (geometric and attribute – 97% cases). The examined databases differ in the course and mileage of the same watercourse. The research results showed high consistency of BDOT and MPHP and the highest values of discrepancies when compared with EM. A significant statistical dependence of these discrepancies on land cover with dense vegetation was also found. The research proves that it is important to be careful about the certainty of using these data and shows how this can negatively influence water management system effectiveness. © 2023 The Authors},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85160218348,

title = {Evaluation of Selected Amateur Rain Gauges with Hellmann Rain Gauge Measurements},

author = { R. Drozdziol and D. Absalon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160218348&doi=10.3390%2fcli11050107&partnerID=40&md5=046a51cb8cdd302638561f44aeba03d1},

doi = {10.3390/cli11050107},

issn = {22251154},

year  = {2023},

date = {2023-01-01},

journal = {Climate},

volume = {11},

number = {5},

publisher = {MDPI},

abstract = {The paper compares precipitation measurements from the Stratus manual rain gauge from the CoCoRaHS network and two Davis Vantage Vue and Davis Vantage Pro 2A rain gauges with the Hellmann rain gauge. Comparative measurements were made on a specially prepared experimental plot. The statistical calculations took into account 15 full months in the period from 1 October 2019, to 31 December 2020. In order to estimate the differences in measurements between amateur rain gauges and the Hellmann rain gauge, two statistics were calculated: the mean square error (MSE) and the mean absolute error (MAE). In order to present formal and more detailed differences in measurements between amateur rain gauges and the Hellmann rain gauge, analyses were performed using a linear regression model. The general form of the tested models was presented. The procedure for estimating the parameters of the models and the method of comparing the fit of the models to the data were described, and the rain gauge whose measurements were most closely related to the measurements of the Hellmann rain gauge was indicated. The study showed that the higher price of amateur rain gauges does not mean higher quality. The study showed that the Stratus rain gauge was the best at recording daily precipitation totals. The Davis Vantage Pro 2A rain gauge recorded daily precipitation sums with less accuracy. The Davis Vantage Vue rain gauge, despite being located on the roof, recorded similar rainfall totals as the Hellmann rain gauge. It was found that, despite the different construction and measurement methods, the precipitation measurement data from the Stratus rain gauge and the Davis Vantage Vue rain gauge are suitable both for climate monitoring and for use, after applying quality control, in NMHS networks. © 2023 by the authors.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85159324707,

title = {Spatial Multi-Criteria Analysis of Water-Covered Areas: District City of Katowice—Case Study},

author = { N. Janczewska and M. Matysik and D. Absalon and Ł. Pieron},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85159324707&doi=10.3390%2frs15092356&partnerID=40&md5=3a197fd522903259e255a3b2fec32f48},

doi = {10.3390/rs15092356},

issn = {20724292},

year  = {2023},

date = {2023-01-01},

journal = {Remote Sensing},

volume = {15},

number = {9},

publisher = {MDPI},

abstract = {The following databases contains information on land use with water in Poland: Corine Land Cover (CLC), the Urban Atlas (UA); Database of Topographic Objects (BDOT) the digital Map of Poland’s Hydrographic Division (MPHP); and the Register of Lands and Buildings (EGiB). All these data are referenced in scientific analyses and the Polish water management system, so the results of their processing should be the same (or at least similar); if not, output materials will be inconsistent and unreliable. In the Katowice sample, we checked the quality of this data using multi-criteria analyses, which is based on a grid of equal-area hexagons. Additionally, we applied the Normalized Difference Water Index to check real-time water presence. We detected discrepancies between all the data. The CLC does not reference any flowing water in Katowice. Most data overlapped between MPHP and BDOT, and both databases were similar to UA. However, a lot of uncertainty was also observed in the EGiB, which is considered to be the most accurate of the databases surveyed. In conclusion, we argue that water land cover data should be used with caution, and depending on the scales of analysis, that most actual data could be remote sensed data. We also include a diagram which can be useful in the data selection process. © 2023 by the authors.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85149706025,

title = {Detection of changes in the hydrobiological parameters of the Oder River during the ecological disaster in July 2022 based on multi-parameter probe tests and remote sensing methods},

author = { D. Absalon and M. Matysik and A. Woźnica and N. Janczewska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85149706025&doi=10.1016%2fj.ecolind.2023.110103&partnerID=40&md5=86f1cfc17a45108877a190a1034d1dfc},

doi = {10.1016/j.ecolind.2023.110103},

issn = {1470160X},

year  = {2023},

date = {2023-01-01},

journal = {Ecological Indicators},

volume = {148},

publisher = {Elsevier B.V.},

abstract = {Starting from the second half of July, hydrological conditions (low water levels and low flows) and atmospheric conditions (high temperatures; lack of precipitation) contributed to algae bloom in the Oder River basin. The mass extinction of fish in the middle and lower section of the Oder was probably the result of such environmental conditions. Because algae bloom is correlated with an increase in the content of chlorophyll in the river and on its surface, the authors focused on an analysis of changes in the chlorophyll amount in the longitudinal profile of the river. The key data was obtained by soundings carried out at an interval of about one kilometre during the research expedition, which took place on July 16–24, 2022. These data coincided with the values of the NDVI index (normalised difference vegetation index) based on 10-metre satellite images from the Sentinel 2 mission. Imagery from cloudless periods (mainly March; June; July and August) processed using the NDVI index was compared. Regularly elevated chlorophyll levels in the upstream section (occurring in each period) and temporarily elevated chlorophyll values as moving downstream were observed. This article confirms the initial conclusions of Kolada et al. (2022) that the mass fish kill in the Oder River in the summer of 2022 was conditioned by natural environmental pressure causing massive algae bloom and the release of their toxins. The article also proves that the use of satellite images for this type of analysis is the correct approach, but due to low resolution, they cannot be used as reference material. Changes in the hydrobiological parameters of the river, which are a direct indicator of the causes of the ecological disaster, are the data of the multi-parameter probe obtained two weeks before the first mass catches of dead fish. © 2023},

note = {5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85149932914,

title = {Analysis of the Salinity of the Vistula River Based on Patrol Monitoring and State Environmental Monitoring},

author = { A. Woźnica and D. Absalon and M. Matysik and M. Bąk and A. Cieplok and D. Halabowski and A. Koczorowska and M. Krodkiewska and M. Libera and E.M. Sierka and A. Spyra and R. Czerniawski and Ł. Sługocki and B. Łozowski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85149932914&doi=10.3390%2fw15050838&partnerID=40&md5=a1b9ba5b610a3021fd3cad70380682bc},

doi = {10.3390/w15050838},

issn = {20734441},

year  = {2023},

date = {2023-01-01},

journal = {Water (Switzerland)},

volume = {15},

number = {5},

publisher = {MDPI},

abstract = {Background: Secondary salinity of river water reduces the value of ecosystem services, negatively impacting the entire aquatic ecosystem and reducing the possibility of water use. In Poland, significant anthropogenic salinity of rivers and water reservoirs is usually associated with mining activity consisting of pumping salty mine water into settling ponds or often directly into rivers. However, to assess the reasons for the salinity of the Vistula waters, it is necessary to identify all sources of salt in surface waters, enabling the assessment of the salt load in the waters. Methods: The paper presents four sources of data which have been compiled to propose a valuable method for analyzing the threat of the river. Patrol monitoring was one method of data acquisition, and State Environmental Monitoring data ware also used. Clustering and correlation statistical techniques were used for analysis. Results: Of the 20 physical and chemical parameters analyzed, chloride, calcium sulphate and magnesium ions are important for salinity. Measurements with multi-parameter probes allowed for the identification of increased salinity pressure sites, while flow analyses were required to calculate the load. Conclusions: The Vistula River had the highest concentrations of the analyzed ions in the Silesia Region. The use of patrol monitoring can be highly useful in determining the causes of emerging problems with water quality and supporting State Environmental Monitoring. © 2023 by the authors.},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85147795706,

title = {Evaluation of Pressure Types Impacted on Sediment Supply to Dam Reservoirs: Selected Examples of the Outer Western Carpathians Catchments Area},

author = { D. Absalon and M. Matysik and Ł. Pieron},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147795706&doi=10.3390%2fw15030597&partnerID=40&md5=dc7770eaebb62a8c3562d20a4e772739},

doi = {10.3390/w15030597},

issn = {20734441},

year  = {2023},

date = {2023-01-01},

journal = {Water (Switzerland)},

volume = {15},

number = {3},

publisher = {MDPI},

abstract = {The proper characteristics of the catchment area of dammed reservoirs is of great importance when managing their capacity in the context of enabling proper functioning, including retention of the planned amount of water and counteracting the effects of drought. Therefore, detailed analyses covered mountain reservoirs with varying degrees of capacity changes: Goczałkowice on the Vistula, Rożnów on the Dunajec and Tresna on the Soła, thanks to which reasons for the differences in these changes were determined. For this purpose, data on the volume of the suspended load was used. Diversity in its transport is mainly caused by the presence of damming structures. Correlation of morphological and hydraulic indicators was carried out, preceded by the identification and characteristics of all transverse and longitudinal structures located in catchments upstream of individual reservoirs. Analysis of the geological structure, as well as the structure of land use in the basins of the reservoirs, was also performed. The obtained results allowed for the preparation of recommendations for further work, allowing, among other things, an increase in water retention. The key factors for maintaining the capacity of retention reservoirs were defined, which may be useful in national plans or programs in the field of counteracting the effects of drought or flood protection. © 2023 by the authors.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85146051993,

title = {An Integrated Approach to an Assessment of Bottlenecks for Navigation on Riverine Waterways},

author = { M. Schoeneich and M. Habel and D. Szatten and D. Absalon and J. Montewka},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146051993&doi=10.3390%2fw15010141&partnerID=40&md5=ff0c08439ca627c999a89422d2f6ef10},

doi = {10.3390/w15010141},

issn = {20734441},

year  = {2023},

date = {2023-01-01},

journal = {Water (Switzerland)},

volume = {15},

number = {1},

publisher = {MDPI},

abstract = {Water transport, both sea and inland, is the cheapest, least invasive, and safest option for non-standard loads; hence, it is important to increase the percentage share of inland waterway transport on the rivers of Central and Eastern Europe. Transporting cargo is particularly difficult on shallow waterways because rivers overloaded with sediment determine the vertical parameters on inland waterways. A ship’s safe manoeuvrability depends on the available water depth of the navigational area concerning the vessel’s draught. The draught is related to channel depth and sediments. The paper presents a model assessment of a new tool for studying limitations for ships carrying oversized cargo and the shallow channel bed inland waterways. Our analysis was carried out on the Vistula River lowland reach for the winter hydrological conditions. The Lower Vistula River in Poland is a clear example of a sedimentation problem. This waterway is also a zone of active sediment transport of sandy material; a massive volume of sediment reaches 1 million cubic meters per year. The results of this research could be helpful for inland transport management, risk assessment of ships entering waterways with shallow channel beds such as the Vistula River, and analysis for a new waterway project. © 2022 by the authors.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85135441745,

title = {The spatial structure (3D) and mechanical properties of the sponge Spongilla lacustris L. (Porifera: Spongillida) skeleton as a potential tensegral architecture},

author = { A. Woźnica and J. Karczewski and T. Bernaś and P. Świątek and M. Drab and R. Surma and M. Krzyżowski and B. Łozowski and R. Gwiazda and M. Libera and D. Absalon and A. Babczyńska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85135441745&doi=10.1080%2f24750263.2022.2105964&partnerID=40&md5=d32c8660b692cf631fb930f88c6b6495},

doi = {10.1080/24750263.2022.2105964},

issn = {24750263},

year  = {2022},

date = {2022-01-01},

journal = {European Zoological Journal},

volume = {89},

number = {1},

pages = {1002-1017},

publisher = {Taylor and Francis Ltd.},

abstract = {Complex biological systems often provide ready solutions for contemporary engineering. One such organism might be sponges, primitive, tissueless animals whose evolution over 600 million years has allowed them to become highly specialized. An example of such an organism is the freshwater sponge Spongilla lacustris L., an organism that filters water. This study aimed to investigate the 3D structure of the aforementioned sponge using a broad spectrum of techniques such as Microcomputed Tomography (µCT), Scanning Electron Microscopy (SEM), Confocal Laser Scanning Microscopy (CLSM), and Light Microscopy. Additionally, these techniques have been used to correlate sponge architecture with mechanical properties using the concept of tensegrity, i.e., the feature of architectural structures that self-stabilize by balancing multidirectional, often opposing, tensile and compressive forces. A more detailed look at the structure of the sponge skeleton reveals that it is based on two elements: rigid siliceous spicules, chitin in in fibres with cementing collagen-type spongin material. The coexistence of these elements in the sponge structure determines the mechanical properties and, consequently, the sponge skeleton’s postulated tensegrity. Our observations indicate that the integrity of loose megascleres is realized by sponging material surrounding the bundles of spicules. Our distinction of skeletal elements was determined by the number of spicules in the bundle, the direction of spicule position relative to the main body axis, and the way the elements were connected. The arrangement of the bundles described above has important implications for the mechanical properties of the sponge skeleton and, consequently, for the tensegrity hypothesis. © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.},

note = {1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85128691739,

title = {Microbiome dynamics modeling and analysis in relation to spatio-temporal changes in physicochemical conditions of the water ecosystem},

author = { A. Woźnica and M. Kwaśniewski and K. Chwiałkowska and B. Łozowski and D. Absalon and M. Libera and M. Krzyżowski and A. Babczyńska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128691739&doi=10.24425%2faep.2022.140542&partnerID=40&md5=62aef1f191ab748b40b4223bc7d4161e},

doi = {10.24425/aep.2022.140542},

issn = {20834772},

year  = {2022},

date = {2022-01-01},

journal = {Archives of Environmental Protection},

volume = {48},

number = {1},

pages = {18-30},

publisher = {Polska Akademia Nauk},

abstract = {In this paper, we consider the development of reliable tools to assess the water quality and state of aquatic ecosystems in dynamic conditions a crucial need to address. One of such tools could be devised by monitoring the taxonomic structure of reservoirs’ microbiomes. Microbial taxa’s ecological and metabolic characteristics suggest their essential roles in maintaining the water ecosystem’s environmental equilibrium. The study aimed to explain the role of diversity and seasonal variability of the microbial communities in the ecosystem stability on the example of Goczałkowice Reservoir (Poland). The structure of the reservoir microbiome was studied using bioinformatics and modeling techniques. Water was sampled periodically in July & November 2010, and April 2011 at four representative sites. The abundance and relative fraction of the limnetic taxonomic units were determined in respect to the physicochemical indices. Significant seasonal variations in the number of operational taxonomic units (OTU) were observed within the reservoir basin’s main body but not at the main tributary’s mouth. The highest values of the correlation coefficients between OTU and physicochemical variables were obtained for Burkholderiales, Pseudoanabenales, Rickettsiales, Roseiflexales, Methylophilales, Actinomycetales, and Cryptophyta. These microorganisms are proposed as indicators of environmental conditions and water quality. Metataxonomic analyses of the freshwater microbiome in the reservoir, showed that microorganisms constitute conservative communities that undergo seasonal and local changes regarding the relative participation of the identified taxa. Therefore, we propose that monitoring those variations could provide a reliable measure of the state of aquatic ecosystems. © 2022. The Author(s).},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85120326608,

title = {Inventory of reservoirs of key significance for water management in Poland—Evaluation of changes in their capacity},

author = { Ł. Pieron and D. Absalon and M. Habel and M. Matysik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120326608&doi=10.3390%2fen14237951&partnerID=40&md5=985596f4afd62c423a7c9f94234c983f},

doi = {10.3390/en14237951},

issn = {19961073},

year  = {2021},

date = {2021-01-01},

journal = {Energies},

volume = {14},

number = {23},

publisher = {MDPI},

abstract = {Dam reservoirs constitute an important element of protection against floods and hydrological droughts, and they ensure the possibility of producing electricity. Loss of reservoirs’ storage capacity has a significant impact on the management of their water resources, including flood protection and counteracting the effects of drought and the possibility of producing electricity. The paper presents changes in the capacity of 47 reservoirs in Poland that have the status of key objects of protection against floods and hydrological drought. Based on the collected, unpublished data, the changes in capacity from the beginning of the reservoirs’ existence to 31 March 2021 were calculated, which allowed us to determine the total amount of lost capacity and the pace of the processes taking place. From the beginning of operation (average operation time 48 years), the capacity has decreased by about 5%, which means that almost 200 million m3 less water is stored. Detailed analyses of the lost capacity also allowed for an illustrative presentation of forecasts for further changes in the short and long term. The results obtained represent a unique contribution to future national strategies for the management of sediment and reservoirs’ flood reserve and reduction of drought. The presentation of this problem seems to be important also in the context of climate change. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85111257029,

title = {Hydrodynamic parameters of floods and related bank erosion events indicated from tree rings and 2D hydrodynamic model for a small ungauged catchment (Sudeten Mts., Poland)},

author = { I. Malik and M. Wistuba and D. Absalon and M. Habel and S. Chalov and R. Yu},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111257029&doi=10.1016%2fj.ecolind.2021.108021&partnerID=40&md5=34e770ca26a7e993b091769257016eb9},

doi = {10.1016/j.ecolind.2021.108021},

issn = {1470160X},

year  = {2021},

date = {2021-01-01},

journal = {Ecological Indicators},

volume = {129},

publisher = {Elsevier B.V.},

abstract = {Small mountain catchments usually lack hydrological monitoring and gauges. Therefore, in such areas, data on past flood and bank erosion are often missing, which makes assessing flood and erosion hazards very limited. We attempt to fill in this gap by dating individual flood and erosion events from growth disturbances produced by trees after their stems are tilted, and their roots are exposed and wounded by transported material. We aimed to develop a conceptual approach to integrate dendrochronology and 2D modelling for indicating and assessing past events of floods and bank erosion on a small mountain river Łomniczka, Sudeten mountains, Poland. We dated growth disturbances resulting from tilting of stems of spruce trees which grow on eroded riverbanks, i.e. tree-ring eccentricity and compression wood. We also dated disturbances resulting from the exposure of roots from under the soil cover, i.e. sudden decreases of cell lumen, and root injuries by debris transported by floods, i.e. scars and traumatic resin ducts. Dendrochronology allow to indicate the occurrence of 28 floods since the 1930s, including 11 floods when bank erosion was also recorded at study sites. The approach enables to identify rates of bank erosion during specific floods which ranged at study sites from 20 to 120 cm. The largest discharge was determined for the 1997 flood (106;7 m3 s−1), and the highest flow velocities were obtained for the 1930 floods (4.59 m/s). Results show that the highest shear stress occurred during the floods in 1943 and 1977 (510;3N/m2) and in 1997 flood (469.1 N/m2). We conclude that dendrochronology combined with 2D modelling allowed us to indicate past floods and bank erosion, and to prepare reliable inventories for analyses of flood and erosion hazard. The approach proposed in this paper can also be used as a tool for flood management, spatial management and planning. © 2021},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85095441499,

title = {Dam and reservoir removal projects: a mix of social-ecological trends and cost-cutting attitudes},

author = { M. Habel and K. Mechkin and K. Podgorska and M. Saunes and Z. Babiński and S. Chalov and D. Absalon and Z. Podgórski and K. Obolewski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095441499&doi=10.1038%2fs41598-020-76158-3&partnerID=40&md5=17c0b739037a088e7f4dae1a5e826f3f},

doi = {10.1038/s41598-020-76158-3},

issn = {20452322},

year  = {2020},

date = {2020-01-01},

journal = {Scientific Reports},

volume = {10},

number = {1},

publisher = {Nature Research},

abstract = {The removal of dams and reservoirs may seem to be an unforeseen and sometimes controversial step in water management. The removal of barriers may be different for each country or region, as each differs greatly in terms of politics, economy and social and cultural awareness. This paper addresses the complex problem of removing dams on rivers and their connected reservoirs. We demonstrate the scales of the changes, including their major ecological, economic, and social impacts. Arguments and approaches to this problem vary across states and regions, depending on the political system, economy and culture, as confirmed by the qualitative and quantitative intensities of the dam removal process and its global geographical variation. The results indicate that the removal of dams on rivers and their connected reservoirs applies predominantly to smaller structures (< 2.5 m). The existing examples provide an important conclusion that dams and reservoirs should be considered with regard to the interrelations between people and the environment. Decisions to deconstruct hydraulic engineering structures (or; likewise; to construct them) have to be applied with scrutiny. Furthermore, all decision-making processes have to be consistent and unified and thus developed to improve the lack of strategies currently implemented across world. © 2020, The Author(s).},

note = {11},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85084176121,

title = {Multi-faceted environmental analysis to improve the quality of anthropogenic water reservoirs (Paprocany reservoir case study)},

author = { D. Absalon and M. Matysik and A. Woźnica and B. Łozowski and W. Jarosz and R. Ulańczyk and A. Babczyńska and A. Pasierbiński},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084176121&doi=10.3390%2fs20092626&partnerID=40&md5=cc466385954de533dfd5f2601a334e34},

doi = {10.3390/s20092626},

issn = {14248220},

year  = {2020},

date = {2020-01-01},

journal = {Sensors (Switzerland)},

volume = {20},

number = {9},

publisher = {MDPI AG},

abstract = {Maintaining good condition of dam reservoirs in urban areas seems increasingly important due to their valuable role in mitigating the effects of global warming. The aim of this study is to analyze possibilities to improve water quality and ecosystem condition of the Paprocany dam reservoir (highly urbanized area of southern Poland) using current data of the water parameters, historical sources, and DPSIR (Driver–Pressure–State–Impact–Response) and 3D modeling concerning human activity and the global warming effects. In its history Paprocany reservoir overcame numerous hydrotechnical changes influencing its present functioning. Also, its current state is significantly influenced by saline water from the coal mine (5 g L−1 of chlorides and sulphates) and biogenic elements in recreational area (about 70 mg L−1 of chlorate and to 1.9 mg L−1 Kjeldahl nitrogen) and in sediments (222.66 Mg of Kjeldahl nitrogen; 45.65 Mg of P; and 1.03 Mg of assimilable phosphorus). Concluding, the best solutions to improve the Paprocany reservoir water quality comprise: increasing alimentation with water and shortening the water exchange time, restoration of the 19th century water treatment plant, and wetlands and reed bed area revitalization. The study also proved the applicability of mathematical models in planning of the actions and anticipating their efficiency. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {9},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85082300147,

title = {Surface water quality analysis using CORINE data: An application to assess reservoirs in Poland},

author = { M. Matysik and D. Absalon and M. Habel and M. Maerker},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082300147&doi=10.3390%2frs12060979&partnerID=40&md5=263f4e40d2abeeb63444a4293b58126a},

doi = {10.3390/rs12060979},

issn = {20724292},

year  = {2020},

date = {2020-01-01},

journal = {Remote Sensing},

volume = {12},

number = {6},

publisher = {MDPI AG},

abstract = {Reservoirs are formed through the artificial damming of a river valley. Reservoirs, among others, capture polluted load transported by the tributaries in the form of suspended and dissolved sediments and substances. Therefore, reservoirs are treated in the European Union (EU) as "artificial" or "heavily modified" surface water bodies. The reservoirs' pollutant load depends to a large extent on the degree of anthropogenic impact in the respective river catchment area. The purpose of this paper is to assess the mutual relation between the catchment area and the reservoirs. In particular, we focus on the effects of certain land use/land cover on reservoirs' water quality. For this study, we selected twenty Polish reservoirs for an in-depth analysis using 2018 CORINE Land Cover data. This analysis allowed the identification of the main triggering factors in terms of water quality of the respective reservoirs. Moreover, our assessment clearly shows that water quality of the analysed dam reservoirs is directly affected by the composition of land use/land cover, both of the entire total reservoir catchment areas and the directly into the reservoir draining sub-catchment areas. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {12},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85048159373,

title = {Mathematical Modelling as a Tool for the Assessment of Impact of Thermodynamics on the Algal Growth in Dam Reservoirs - Case Study of the Goczalkowice Reservoir},

author = { R. Ulańczyk and C. Kliś and D. Absalon and M. Ruman},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048159373&doi=10.2478%2foszn-2018-0005&partnerID=40&md5=d461622e3806fd08cf2741a84a602424},

doi = {10.2478/oszn-2018-0005},

issn = {12307831},

year  = {2018},

date = {2018-01-01},

journal = {Ochrona Srodowiska i Zasobow Naturalnych},

volume = {29},

number = {1},

pages = {21-29},

publisher = {De Gruyter Open Ltd},

abstract = {Depending on climate conditions, bathymetry, basin morphology, management practices and other factors, some reservoirs are more or less prone to stratification, which can strongly affect both chemical and biological status of water. In the Goczalkowice Reservoir (the biggest dam reservoir in the south of Poland), water quality parameters, such as chlorophyll a concentration, change very dynamically. In the presented study, the Estuary, Lake and Coastal Ocean Model (ELCOM) was applied to simulate water thermodynamics in a period of summer and autumn when the highest concentrations of chlorophyll a were observed, based on the continuous water monitoring in the ZiZOZap project (Łaszczyca et al.; 2011). The purpose of the application of ELCOM was to simulate the thermal stratification in the reservoir and to prepare a basis for analyses of the relationship between water thermodynamics and quality. Simulations allowed the identification of several short water mixing events in summer and the final mixing event at the end of summer. The study also included the first application of model results to analyse the relation of changes in water temperature with observed concentration of chlorophyll a (ChlA). Analysis confirmed that each water mixing event was followed by a significant increase in ChlA concentration. © 2018 Rafał Ulańczyk, published by Sciendo 2018.},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84928659980,

title = {Estimating the impact of inflow on the chemistry of two different caldera type lakes located on the Bali Island (Indonesia)},

author = { Ż. Polkowska and L. Wolska and L. Łęczyński and M. Ruman and S. Lehmann-Konera and K. Kozak and M. Matysik and D. Absalon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928659980&doi=10.3390%2fw7041712&partnerID=40&md5=963607db6ba976dbb3d096da92d5078c},

doi = {10.3390/w7041712},

issn = {20734441},

year  = {2015},

date = {2015-01-01},

journal = {Water (Switzerland)},

volume = {7},

number = {4},

pages = {1712-1730},

publisher = {MDPI AG},

abstract = {This paper is a preliminary attempt to assess the composition of pollutants in two different caldera lakes situated in the Indonesian Archipelago: Batur and Bratan. Both lakes are characterized by largely different physico-chemical regimes; Batur Lake is located in an area that is currently volcanically active, unlike Bratan Lake. The latter is much smaller and shallower than Batur Lake. The concentration of pollutants in the Indonesian equatorial lakes is largely unknown, and the impact of both biological and geothermal processes on their distribution requires attention. This study shows that the concentrations of cations (Na+; K+; Mg2+; Ca2+), anions (SO42-; F-; Cl-; Br-) and trace elements (Li; B; Al; V; Cr; Mn; Co; Ni; Cu; Zn; As; Se; Rb; Sr; Mo; Cd; Sn; Cs; Ba; Pb; U; Be; Ag; Sb; Tl; Bi) differ greatly between both lakes. Most chemical parameters determined in volcanically influenced Batur Lake were tens to hundreds times higher than in Bratan Lake, and in the case of trace metals, the ratios of the two lakes' concentrations reached several hundreds. This study also compared the composition and concentration levels of organic compounds in both lakes, such as fatty acids, halocarbons and esters. On the other hand, the content of organic chemicals in the lakes also results from biological activity by phytoplankton, zooplankton and bacteria. © 2015 by the authors.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84928158462,

title = {Surface water quality in relation to land cover in agricultural catchments (Liswarta River basin case study)},

author = { M. Matysik and D. Absalon and M. Ruman},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928158462&doi=10.15244%2fpjoes%2f26203&partnerID=40&md5=ce7d8ddcad7df21e0ca70f0776ba5285},

doi = {10.15244/pjoes/26203},

issn = {12301485},

year  = {2015},

date = {2015-01-01},

journal = {Polish Journal of Environmental Studies},

volume = {24},

number = {1},

pages = {175-184},

publisher = {HARD Publishing Company},

abstract = {Agricultural activity results in water pollution from nitrogen and phosphorus compounds. Increased concentrations of nitrogen compounds pose a threat to animal and human health. The purpose of this study was to determine the impact of agriculture in a catchment basin on the level of surface water pollution from biogenic compounds. Spatial analysis of the land cover was conducted using GIS and was based on data from the Corine Land Cover databases. The study results indicated that high concentrations of nitrogen and phosphorus compounds existed in the surface waters. In the surface water, high concentrations of biogenic compounds occurred in both primarily agricultural catchments and in urbanized drainage areas. Water may be regarded as eutrophicated or at high risk of eutrophication because the majority of the nitrate concentrations at the monitoring sites exceeded a limit of 10 mg·dm-3 NO2- 3. Inadequate farming practices and poor sanitary conditions on farmsteads result in the leaching of biogenic substances into the water. To protect water from biogenic pollutants, it is necessary to adopt a new approach to fertilizer use and to improve the sanitary conditions of agricultural properties, which can be achieved by, among other things, the installation of drainage systems in rural areas. Our recommendations include the protection of river valleys as follows: by stopping deforestation, by preserving natural riparian vegetation, and by reducing the volume of intensified agricultural activity or introducing so-called “precision farming.” © 2015, HARD Publishing Company. All rights reserved.},

note = {23},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84895871335,

title = {Reducing monitoring costs in industrially contaminated rivers: Cluster and regression analysis approach},

author = { M. Ruman and E. Olkowska and K. Kozioł and D. Absalon and M. Matysik and Ż. Polkowska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895871335&doi=10.2134%2fjeq2013.06.0225&partnerID=40&md5=cdc543331dbe4068c16510d8d7120ee2},

doi = {10.2134/jeq2013.06.0225},

issn = {00472425},

year  = {2014},

date = {2014-01-01},

journal = {Journal of Environmental Quality},

volume = {43},

number = {2},

pages = {753-762},

publisher = {ASA/CSSA/SSSA},

abstract = {Monitoring contamination in river water is an expensive procedure, particularly for developing countries where pollution is a significant problem. This study was conducted to provide a pollution monitoring strategy that reduces the cost of laboratory analysis. The new monitoring strategy was designed as a result of cluster and regression analysis on field data collected from an industrially influenced river. Pollution sources in the study site were coal mining, metallurgy, chemical industry, and metropolitan sewage. This river resembles those in other areas of the world, including developing countries where environmental monitoring is financially constrained. Data were collected on variability of contaminant concentrations during four seasons at the same points on tributaries of the river. The variables described in the study are pH, electrical conductivity, inorganic ions, trace elements, and selected organic pollutants. These variables were divided into groups using cluster analysis. These groups were then tested using regression models to identify how the behavior of one variable changes in relation to another. It was found that up to 86.8% of variability of one parameter could be determined by another in the dataset. We adopted 60, 65, and 70% determination levels (R2) for accepting a regression model. As a result, monitoring could be reduced by 15 (60% level) and 10 variables (65 and 70%) out of 43, which comprises 35 and 23% of the monitored variable total. Cost reduction would be most effective if trace elements or organic pollutants were excluded from monitoring because these are the constituents most expensive to analyze. © American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.},

note = {7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84861383867,

title = {Transformation of a water network in a moraine upland-outwash plain-valley landscape},

author = { D. Szumińska and D. Absalon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84861383867&partnerID=40&md5=752904c000564d68dedfe2227d6d075e},

issn = {12301485},

year  = {2012},

date = {2012-01-01},

journal = {Polish Journal of Environmental Studies},

volume = {21},

number = {2},

pages = {259-265},

abstract = {The area under study in this paper was subject to landscape transformations, including changes in hydrographical networks. These changes were especially intense in the second half of the 19th century during the Prussian partition, when extensive hydrotechnical works were conducted. Based on a comparison of cartographic materials at a scale of 1:25,000, Prussian topographic maps from 1874, and Polish maps from the second half of the 20th century, it was found that the hydrographic network has changed significantly. A characteristic anthropogenic pattern of water structures was observed that correlates with certain individual morphological units. In the bottoms of the valleys and hollows there is a dense irrigation network, and in the moraine areas, numerous reservoirs of anthropogenic origin were found that are characterized by a rather small size and circular shape. The drainage density in the area under study has increased from 0.7 to 1.95 km·km-2, but the lake percentage has only increased from 1.81 to 1.93%. However, the number of reservoirs has increased from 36 to 675. The anthropogenic water reservoirs were found first and foremost in the area of the uplands, where the reservoir frequency has increased from 0.3 km·km-2 to 7.7 km·km-2. The results of the conducted research can be used to perform an automatic analysis of the transformations of the water network in Tuchola Forest and other areas of the last glacial extent. The results of the study presented in this paper should also be used when taking any decisions and actions that may lead to changes in water network and water management. The discussed "anthropogenic lakeland" located in the area of poor industrial and urban development, the Tuchola Forest, may also be the premise for verifying views on a large number of lakes situated in kettle holes within the Polish Lowland (Niż Polski).},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84861371331,

title = {Renaturization plan for a river valley subject to high human impact - hydrological aspects},

author = { M. Matysik and D. Absalon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84861371331&partnerID=40&md5=40dacee2573109bc885762b6f4be32d1},

issn = {12301485},

year  = {2012},

date = {2012-01-01},

journal = {Polish Journal of Environmental Studies},

volume = {21},

number = {2},

pages = {249-257},

abstract = {This article presents hydrological aspects of a renaturization plan for a river valley that has been significantly transformed as a result of human impact. A section of the Szarlejka River valley located at the border of the cities of Bytom and Radzionkow was used for this purpose. The hydrographic conditions of the area under consideration have been significantly altered due to human action. These transformations are the result of systematic residential and industrial infrastructure development, which has been accompanied by industrial waste disposal. Underground coal mining in the area has caused subsidence and discharge of saline mining waters to rivers. The Szarlejka is considered one of the most polluted rivers in Silesia Province (Polish: wojewodztwo ślaskie) and all of Poland. The primary objective of the renaturization plan is to improve abiotic conditions and water status. This plan is based on the analysis of all accessible data, including archival maps and field work. Hydrological and hydrotechnical renaturization actions are proposed for the Szarlejka River valley that cover the elements, structures, and facilities, of which the mere presence brings the waters closer to their natural state (barrages inhibiting erosion; connections allowing for the circulation of aquatic organisms). The proposal also includes building astatic reservoirs, creating oxbow tanks in retained sections of the old river bed, and building a pond with a wetland and an island. The restored structures will affect abiotic and biotic conditions, consequently influencing the water recovery process with the aim of bringing it closer to its natural state. For the purposes of the planned renaturization, a geographic information system (GIS) was created, enabling digital map generation, database creation, and calculations.},

note = {12},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84861357797,

title = {Air temperature increase and quality of life in an anthropogenically transformed environment: A case study},

author = { D. Absalon and B. Ślesak},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84861357797&partnerID=40&md5=d64c9635063ac0af0c3f5f71eb7af618},

issn = {12301485},

year  = {2012},

date = {2012-01-01},

journal = {Polish Journal of Environmental Studies},

volume = {21},

number = {2},

pages = {235-239},

abstract = {This paper to assesses the impact of air temperature increase connected with the degree of anthropogenic transformation of an area on the subjectively perceived quality of life. The area under study is the Metropolitan Association of Upper Silesia (Gornoślaski Zwiazek Metropolitalny - GZM). We analyzed the average monthly temperatures in different seasons and the human impact ratio of the area. The ratio was determined based on population density, road network density, the amount of waste produced and the number and size of buildings in the analyzed area. The result is a methodology that involves anthropogenic and non-anthropogenic factors to assess the impact of weather conditions on the quality of life in the analyzed area. The average temperatures in GZM have a similar spatial distribution pattern regardless of the season. The highest temperatures are recorded in the central part of GZM. The spatial fluctuations of the human impact factor are large in the area studied, with values varying from 2.5 to 10.1. These values points to the risk of exposure to harmful factors and a lower quality of life perception. As evidenced by the human impact factor calculated, these are the districts where human influence on the environment is the most noticeable. After analysis of temperature distribution the similarities in the distribution patterns of both factors are evident Therefore, temperature should also be taken into account when identifying sites particularly harmful to human health.},

note = {10},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-79955523253,

title = {The importance of time of exposure to harmful anthropogenic factors as an element of cancer risk assessment in children},

author = { D. Absalon and B. Ślesak},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-79955523253&doi=10.1016%2fj.ecoenv.2011.01.009&partnerID=40&md5=40ed48f8e562af750409d95020e5eaf8},

doi = {10.1016/j.ecoenv.2011.01.009},

issn = {01476513},

year  = {2011},

date = {2011-01-01},

journal = {Ecotoxicology and Environmental Safety},

volume = {74},

number = {4},

pages = {967-973},

abstract = {This study attempted to verify whether the time of exposure to harmful factors is important for the increased risk of developing cancer. A statistical analysis of all cases of cancer in children in the period from 1995 to 2004 in the province of Silesia (Poland) was conducted, and their spatial distribution was then presented using cartographic and GIS methods. The data were then juxtaposed with the developed assessment of the degree of anthropogenic pressure in the province of Silesia with regard to: population density, the volume of produced waste and the density of road networks. The anthropogenization index, which was determined by taking into account the selected factors and the degree of impact on human health, was presented as values from 0 to 1, where 0 represents no anthropogenic pressure and 1 represents its maximum level. In the province of Silesia, the estimated values of the anthropogenization index range from 0.2 to 0.67. The study revealed significant variation in the incidence rates in certain age groups, sexes and districts. It also showed a change in incidence rate values in 2004 compared to 1995, with the largest increase (over 9-fold) occurring in boys. In girls, a decrease (almost 5-fold) in incidence rates was recorded in most cancer groups. The correlation coefficient which was determined indicates a diverse relationship between exposure time and the number of cases of cancer, but in only a few districts it is statistically significant. © 2011 Elsevier Inc.},

note = {7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-77955922408,

title = {The effects of changes in cadmium and lead air pollution on cancer incidence in children},

author = { D. Absalon and B. Ślesak},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-77955922408&doi=10.1016%2fj.scitotenv.2010.06.030&partnerID=40&md5=f3b2056177c8dd1dd5bdfbcbc2440ad6},

doi = {10.1016/j.scitotenv.2010.06.030},

issn = {00489697},

year  = {2010},

date = {2010-01-01},

journal = {Science of the Total Environment},

volume = {408},

number = {20},

pages = {4420-4428},

abstract = {This article presents the results of research on the effects of air pollution on cancer incidence in children in the region of Silesia (Poland), which has undergone one of the most profound anthropogenic transformations in Europe. The main objective of the research was to specify the impact of changes in cadmium and lead pollution in the years 1990-2005 on the incidence of cancers reported in children. Lead concentration ranged from 0 to 1490·10-9Gm-2/year, and cadmium concentration ranged from 0 to 33.7·10-9G m-2/year. There was no strong significant correlation (max 0.3) between air pollution and incidence rate (IR) in the general population of children in any particular year. Alongside the cartographic presentation of dependences, correlation coefficients between the variables in question were calculated. This made it possible to determine the relationship between the pollution levels and incidence rates in the area. There was a significant reduction in the level of pollution during the investigated period. The study of the relationship between the number of cancers reported and the condition of the natural environment revealed increased sensitivity to toxins in boys (correlation coefficient 0.3). In addition, the spatial distribution of the number of cases reported in boys suggests a correlation with the spatial distribution of the coefficients for the entire group of children included in the study. The yearly average IR of childhood cancer in specific districts ranged from 0 to 61.48/100,000 children under 18years of age during the 1995-2004 period. © 2010 Elsevier B.V.},

note = {27},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-35548995822,

title = {Changes in water quality and runoff in the Upper Oder River Basin},

author = { D. Absalon and M. Matysik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-35548995822&doi=10.1016%2fj.geomorph.2006.07.035&partnerID=40&md5=a61f943d7fbc099354640205a65d77cb},

doi = {10.1016/j.geomorph.2006.07.035},

issn = {0169555X},

year  = {2007},

date = {2007-01-01},

journal = {Geomorphology},

volume = {92},

number = {3-4},

pages = {106-118},

abstract = {The aim of the study is the analysis of runoff and water quality changes in the Upper Oder River Basin above the Krapkowice gauging station (catchment area A = 10 720.6 km2). The issue of water quality is of particular importance to Poland, which has comparatively poor water resources compared with many countries of the European Union (EU). What is more, large pollutant loads in the upper course of the Oder pose huge problems for water consumers and users in its middle and lower course (including Germany) and pollute the Baltic Sea. Changes in 7 indices of water pollution, including BOD5 and COD (synthetic indices), sulphates, chlorides and suspended matter (mineral substances) and nitrates and phosphates (biogenic substances), were investigated for 8 monitoring sites. The study spans the period before and after political transformation in Poland and the Czech Republic, which significantly altered the economies of these countries. In addition, the patterns of runoff changes were analysed at 3 gauging stations: Chałupki, Krzyżanowice and Miedonia, which were also water quality monitoring points. The analysis encompassed 2 periods: 1970-2000 and 1991-2000. The results demonstrated that poor water quality in the Oder improved significantly during the 1990s, as the result of closure of many industries and plants, improvement of sewage treatment and noticeable increases in runoff causing greater dilution of pollutants. As the EU Water Framework Directive is implemented, better water and sewage management can be expected that will contribute to further improvement of water quality in the Oder. However, problems that remain to be solved are the issues of saline mine waters and surface washings and the long-term accumulation of many hazardous substances in bottom sediments in rivers and reservoirs. © 2007.},

note = {46},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-52649123814,

title = {Factors influencing floods in the urbanized and industrialized areas of the Upper Silesia Industrial Region in the 19th and 20th centuries (the Kłodnica catchment case study)},

author = { D. Absalon and S.W. Czaja and A.T. Jankowski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-52649123814&partnerID=40&md5=ebf2befdbb7b6c5fbf115c5ade9abcf3},

issn = {00167282},

year  = {2007},

date = {2007-01-01},

journal = {Geographia Polonica},

volume = {80},

number = {2},

pages = {97-109},

abstract = {The occurrence and pattern of floods in urban industrial areas depend on both the hydro-meteorological and physico-geographical properties of the catchment area and on the degree of anthropogenic transformation of land. The area selected for research is one of the largest urban mining-industrial districts in Europe, known as the Upper Silesian Industrial Region (USIR). Besides the 'typical' flood risk, which manifests itself in rivers overflowing their banks, this catchment is also threatened with floods that do not depend on meteorological factors but are caused by the formation of flood lands in areas transformed due to deep mining of hard coal. The pattern of floods in the catchment has also been influenced by changes in the forms of land use resulting from the growth of urbanized areas. Because of the increasing flood risk and the fact that it is impossible to build water storage reservoirs other possibilities of improving water retention capacity in the catchment have been indicated.},

note = {5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}