Temat: lake water - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A data-driven approach to predict hydrometeorological variability and fluctuations in lake water levels
Autorzy:: Tan Kesgin, Remziye I.
Demir, Ibrahim
Kesgin, Erdal
Abdelkader, Mohamed
Agaccioglu, Hayrullah
Powiązania:: https://bibliotekanauki.pl/articles/28411608.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: evaporation
lake water level
precipitation
stochastic time series models
water transfer
Opis:: Beyşehir Lake is the largest freshwater lake in the Mediterranean region of Turkey that is used for drinking and irrigation purposes. The aim of this paper is to examine the potential for data-driven methods to predict long-term lake levels. The surface water level variability was forecast using conventional machine learning models, including autoregressive moving average (ARMA), autoregressive integrated moving average (ARIMA), and seasonal autoregressive integrated moving average (SARIMA). Based on the monthly water levels of Beyşehir Lake from 1992 to 2016, future water levels were predicted up to 24 months in advance. Water level predictions were obtained using conventional time series stochastic models, including autoregressive moving average, autoregressive integrated moving average, and seasonal autoregressive integrated moving average. Using historical records from the same period, prediction models for precipitation and evaporation were also developed. In order to assess the model’s accuracy, statistical performance metrics were applied. The results indicated that the seasonal autoregressive integrated moving average model outperformed all other models for lake level, precipitation, and evaporation prediction. The obtained results suggested the importance of incorporating the seasonality component for climate predictions in the region. The findings of this study demonstrated that simple stochastic models are effective in predicting the temporal evolution of hydrometeorological variables and fluctuations in lake water levels.
Źródło:: Journal of Water and Land Development; 2023, 58; 158--170
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Investigation of Microplastic Contamination in Sediments, Water and Aquatic Biota in Lake Beratan, Tabanan Regency, Bali Province – Indonesia
Autorzy:: Watiniasih, Ni Luh
Hendrawan, I. Gede
Nuarsa, I. Wayan
Wiradana, Putu Angga
Powiązania:: https://bibliotekanauki.pl/articles/24201768.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: microplastics
sediment
water
freshwater contamination
Beratan Lake
Opis:: Microplastics (MPs) has become a very serious global threat, especially to the health of animals, humans and the environment. In this study we aim to investigate the contamination of MPs in sediment, air, and aquatic biota collected from the waters of Lake Beratan in Bali Province, Indonesia. Lake Beratan is one of the strategic areas that continues to develop as a tourist destination, agriculture and fisheries, as well as a source of water for daily needs. Sediment, water, and aquatic biota samples were collected from 4 stations that represent the Beratan Lake area. Each sample obtained was then followed by the pre-treatment stage using 5 M NaCl solution. Furthermore, the extraction process for each sample used wet oxidation peroxidation (WPO) with the addition of Fe (II) catalyst. The highest average weight of MPs in the sediment samples was obtained at the 1st sampling point of 2.53% which was dominated by soft fragments. The percentage of MPs weight in the water samples was varied at each sampling point with the highest obtained at the 4th point of 99.2% and was dominated by hard-shaped fragments at all sampling points. The collected aquatic biota was also contaminated by MPs of 68% in fish and 36.40% in shrimp. The types of MPs found in the digestive tract of aquatic biota are in the form of fragments, filaments, films and foam. These results indicate that the aquatic environment of Lake Beratan, Bali has MPs content that varies in sediment, water and aquatic biota which are often consumed by the local community. This must be of particular concern and further investigation, especially regarding the environmental management of the lake area and the relevant authorities in formulating regulations to reduce the harmful effects of MPs contamination.
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 323--332
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Determination of Water Quality Status of Telaga Menjer Wonosobo, Indonesia: An Official Tool for Evaluating the Best Function of Water
Autorzy:: Firmahaya, Nur Arina
Piranti, Agatha Sih
Powiązania:: https://bibliotekanauki.pl/articles/2068468.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Menjer Lake
STORET
water quality
Opis:: Human activities may cause degradation of water quality. For monitoring purpose, it is necessary to know the level of pollution that occurs in water in order to sustain the function of the aquatic ecosystem. The purpose of this study was to determine the level of water pollution of Menjer Wonosobo Lake based on the physical, chemical, and biological parameters to evaluate the best function of the water to support the human activities. The study was conducted for three months (July to September 2020). Water sampling was carried out at seven stations; then, the measurement results were compared with the water quality standards based on Government Regulation No. 22 of 2021. Determination of water quality was carried out using the STORET method. The results showed that there were 7 parameters that exceeded the water quality standards, namely TSS, BOD, COD, DO, N, P and Coliform. The status of water quality was at a moderately polluted level and only functions for the needs of category 3, i.e. for freshwater fish cultivation, for irrigating plants, and or other purposes. Therefore, it was necessary to manage Menjer Lake to improve its water quality.
Źródło:: Journal of Ecological Engineering; 2022, 23, 3; 59--67
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Legal solutions of lake monitoring systems in Poland in compliance with the Water Framework Directive
Autorzy:: Zębek, Elżbieta Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/2106700.pdf
Data publikacji:: 2022-05-30
Wydawca:: Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:: Water Framework Directive
legal solutions
monitoring system
lake ecological status
Opis:: The Water Framework Directive 2000/60/EC is considered a very modern strategy of water management in the EU. The purpose is to establish a framework for the protection of inland surface waters by preventing further deterioration and protecting the condition of aquatic ecosystems, as well as increasing the protection and improvement of the condition of the aquatic environment by limiting emissions and losses of priority substances. It was considered that changes in the water law in Poland during the process of implementing the guidelines of the Water Framework Directive may have contributed to widening and strengthening the monitoring system of lakes and changes in their quality, especially their ecological state. This article aims to determine the changes in legal regulations in the field of water quality/ecologically state of lakes in Poland as a result of the implementation of the WFD. The EC reports indicate that some requirements are too rigorous and complicated for Member States to implement. Water monitoring was significantly expanded and modernised which lead to improvement of lake water quality in Poland. The five-grade ecological status of lake waters and standardised biological indicators were introduced. It was highlighted that the improvement of the WFD implementation process allowed for more effective water management and the development of effective strategies for the protection of lakes in Poland and other EU countries.
Źródło:: Review of European and Comparative Law; 2022, 49, 2; 173-201
2545-384X
Pojawia się w:: Review of European and Comparative Law
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Spatiotemporal mapping of inundation area at Lake Limboto in Gorontalo, Indonesia, using cloud computing technology
Autorzy:: Lahay, Rakhmat Jaya
Koem, Syahrizal
Powiązania:: https://bibliotekanauki.pl/articles/2073728.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Google Earth Engine
Lake Limboto
lake shrinkage
Landsat
remote sensing
water index
Opis:: Monitoring activities on the dynamics of water shrinkage at Lake Limboto are essential to the lake’s ecosystem’s recovery. A remote sensing technology functions to monitor the dynamics of lake inundation area; this allows one to produce a comprehensive set of spatial and temporal data. Such complex satellite dataset demands extra time, greater storage resources, and greater computing capacity. The Google Earth Engine platform emerges as the alternative to tackle such problems. The present study aims to explore the capability of Google Earth Engine in formulating spatial and temporal maps of the inundation area at Lake Limboto. A total of 345 scenes of Landsat image on the study area (available during the period of 1989–2019) were involved in generating a quick inundation area map of the lake. The whole processes (pre-processing, processing, analysing, and evaluating) were automatized by using the Google Earth Engine interface. The evaluation of mapping result accuracy indicated that the average score of F1-score and Intersection over Union (IoU) was at 0.88 and 0.91, respectively. Moreover, the mapping results of the lake’s inundation area from 1989 to 2019 showed that the inundation area tended to decrease significantly in size over time. During the period, the lake’s area also shrank from 3023.8 ha in 1989 to 1275.0 ha in 2019. All in all, the spatiotemporal information about the changes in lake area may be treated as a reference for decision-making processes of lake management in the future.
Źródło:: Journal of Water and Land Development; 2022, 52; 27--33
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Water Quality Assessment of Anchar Lake, Srinagar, India
Autorzy:: Ashraf, Samiyah
Kaur, Simarjot
Singla, Sandeep
Powiązania:: https://bibliotekanauki.pl/articles/27314701.pdf
Data publikacji:: 2022
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: water quality
Anchar lake
TDS
pH
sewage
indices
jakość wody
jezioro Anchar
ścieki
Opis:: The aim of this study was to ascertain the current condition of the Anchar lake water body in the Indian state of J&K in terms of water quality using some main parameters such as pH, TDS, EC, DO, and nitrates content. For the years 2019 and 2020, samples were obtained for two seasons: summer and winter. The quantitative analysis of the experimental results indicates a general increasing trend and considerable variance in nitrates content, as well as a gradual decrease in pH, indicating that the lake's acidity is increasing, but only within the basicity range, with real values approaching neutrality: TDS and EC content suggest a very favorable situation, but when the overall parameters are tested, they show a defect. Since the sampling sites were well aerated, the dissolved oxygen content showed a growing pattern, and as a result, this metric proved to be useless in deciding the overall scenario in the lake. In the winter, the longitudinal trend line indicates a 10% decrease in pH, while in the summer, it shows a 4.4 percent decrease in pH. In winters, the longitudinal trend line reveals a 6.7 percent growth in nitrate content, while summers see a marginal decline. In the winter, the longitudinal trend line shows a 7% rise in dissolved oxygen, while in the summer, it shows a uniform trend.
Źródło:: Civil and Environmental Engineering Reports; 2022, 32, 1; 88--115
2080-5187
2450-8594
Pojawia się w:: Civil and Environmental Engineering Reports
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Application of the Triple Diagram Method in forecasting lake water level, on the example of Lake Charzykowskie
Autorzy:: Piasecki, Adam
Witkowski, Wojciech T.
Powiązania:: https://bibliotekanauki.pl/articles/2048503.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: geostatistics
kriging
lake
Lake Charzykowskie
Triple Diagram Method (TDM)
water level forecasting
water resources
Opis:: The work focused on forecasting changes in lake water level. The study employed the Triple Diagram Method (TDM) using geostatistical tools. TDM estimates the value by information from an earlier two periods of observation, refers as lags. The best results were obtained for data with an average a 1-week lag. At the significance level of 1σ, a the forecast error of ±2 cm was obtained. Using separate data for warm and cold months did not improve the efficiency of TDM. At the same time, analysis of observations from warm and cold months explained trends visible in the distribution of year-round data. The methodology, built on case study and proposed evaluation criteria, may function as a universal solution. The proposed methodology can be used to effectively manage water-level fluctuations both in postglacial lakes and in any case of water-level fluctuation.
Źródło:: Journal of Water and Land Development; 2021, 51; 11-16
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Evaluation of the Influence of the Heavy Metals Content on the Possibility to Use the Waters from selected Strzelin Quarry Lakes for Agricultural Irrigation
Autorzy:: Jawecki, Bartosz
Pawłowska, Kamila
Powiązania:: https://bibliotekanauki.pl/articles/1839132.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: irrigation
Strzelin Quarry Lakes
heavy metals
water reservoir
quarry lake
water quality
Opis:: The article presents the evaluation of the influence of the heavy metals content in the water from selected Strzelin Quarry Lakes located in Central Europe on the possibility to use the water for irrigation. The guidelines provided by FAO and in PN-84/C-04635 were the basis of the evaluation. The water pH ranged from 7.1–9.0, on average 7.8. The zinc content was in the range from 0.40–29.00 µg•dm-3, on the average 14.40 µg•dm-3, while the content of copper ranged from 0.00–50.10 µg•dm-3, on average 21.13 µg•dm-3. The cadmium content fell into the range from 0.00–5.50 µg•dm-3, on the average 0.83 µg•dm-3, and the lead content ranged from 0.00–18.10 µg•dm-3, on average 3.16 µg•dm-3. The chromium content ranged from 0.00–21.00 µg•dm-3, on average 4.26 µg•dm-3 and, finally, the content of nickel ranged from 0.00–39.80 µg•dm-3, on average 6.70 µg•dm-3. The values of the analysed heavy metals were similar to the concentrations noted in natural lakes and artificial water reservoirs. As far as the heavy metal content is concerned, the water from the selected Strzelin Quarry Lakes met the requirements that allow using it for the purposes of agricultural irrigation.
Źródło:: Journal of Ecological Engineering; 2021, 22, 3; 1-10
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Long term changes in the quality and water trophy of Lake Ińsko - the effect of the re-oligotrophication?
Autorzy:: Kubiak, Jacek
Machula, Sylwia
Czerniejewski, Przemysław
Brysiewicz, Adam
Wawrzyniak, Wawrzyniec
Powiązania:: https://bibliotekanauki.pl/articles/2048565.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Lake Ińsko
oligotrophication
susceptibility to degradation
trophy
water quality
Opis:: In 1970-2010, during the period of spring circulation and summer stagnation, hydrochemical studies were conducted in Lake Ińsko (Western Pomeranian Lake Region, Poland) with determination of the lake susceptibility to degradation and trophic changes. Also, the effect of the catchment area on the water quality in this waterbody was assessed. The waters of the study lake were characterised by low static index, which is an additional indicator of low dynamics of water masses, and low susceptibility to degradation. In spite of this, significant changes in the lake quality and trophy were observed. The hydrochemical parameters defining water quality of the study lake continued to improve. In the 70’s, the water quality was at the border of class II and III, while in 2006 and 2010 it reached the level characteristic for class I waters. Moreover, in the 70’s and 80’s of the previous century, Lake Ińsko Duże was a mesotrophic lake. Then, an increase in the lake trophy was observed, resulting in signs of eutrophy. At the end of the 90’s and in the first decade of the 21st century, the study lake returned to the state of mesotrophy. No restoration works were undertaken in Lake Ińsko in the study period. The improvement in water quality, called oligotrophication, resulted most probably from the lake reaction to changes in the soil use in the catchment area, since fewer phosphorus and nitrogen compounds flow into the lake, and also from the regulation of the wastewater management in the town of Ińsko.
Źródło:: Journal of Water and Land Development; 2021, 51; 30-37
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Physico-chemical and biological water quality of Warna and Pengilon Lakes, Dieng, Central Java
Autorzy:: Soeprobowati, Tri Retnaningsih
Addadiyah, Nurul Layalil
Hariyati, Riche
Jumari, Jumari
Powiązania:: https://bibliotekanauki.pl/articles/2048566.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: Dieng
Lake Warna
Lake Pengilon
phytoplankton
pollution index
saprobic index
STORET method
water quality
Opis:: Warna and Pengilon Lakes are very close to each other and connected with the sill, a famous tourist destination in the Dieng Plateau Java. Land-use changes are the main problem that affected the lakes. The conversion of forest into an agricultural area had induced erosion and increased the volume of nutrients discharged to the lake due to high use of fertilisers in potatoes farms. In the dry seasons, water from those lakes was pumped to irrigate agricultural land. This study aimed to determine the water quality of Warna and Pengilon Lakes based on physical, chemical parameters, and phytoplankton communities. Water samples were collected from 4 sites at each lake to analyse biological oxygen demand (BOD), chemical oxygen demand (COD), ammonia, nitrate, nitrite, and total nitrogen (TN). Temperature, pH, dissolved oxygen (DO), turbidity, and conductivity (EC) were measured in-situ. During this research, turbidity and BOD in Warna and Pengilon Lakes exceeded the Indonesian water quality standard. Based on the STORET method, the water quality of Lake Warna was assessed as highly polluted for all classes. However, based on the pollution index (PI), Lake Warna was slightly to moderately polluted, as well as the saprobic index was in the β-mesosaprobic phase. Based on the species diversity index of phytoplankton, both Warna and Pengilon Lakes were moderately polluted. The long-term monitoring studies are necessary as an early warning sign of water quality degradation. Therefore, they provide insight into the overall ecological condition of the lake and can be used as a basis for developing suitable lake management.
Źródło:: Journal of Water and Land Development; 2021, 51; 38-49
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

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

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Skocz do pozycji: 12.

Tytuł:: Water Quality of Gatal Lake, Kotawaringin Lama, Central Kalimantan
Autorzy:: Tyas, Desi Susilaning
Soeprobowati, Tri Retnaningsih
Jumari, Jumari
Powiązania:: https://bibliotekanauki.pl/articles/1839202.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Gatal Lake
water quality
physical-chemical parameter
STORET
Opis:: Gatal Lake is located in the Kotawaringin Lama District, West Kotawaringin Regency, Central Kalimantan, Indonesia. The government and the surrounding communities use Gatal Lake for recreation, irrigation, livestock, and fisheries. Geographically, Gatal Lake, is close to oil palm plantations and palm oil processing factories that contributed to water pollution, especially the pollutants originating from plantation activities in the form of largescale use of fertilizers and pesticides. This study aimed to determine the status of the water quality of Gatal Lake, Kotawaringin Lama based on the physicochemical parameters. The samples from five stations were analyzed based on the following parameters: temperature, TDS, TSS, pH, BOD, COD, DO, nitrate, nitrite, phosphate, Pb, Cd, H2S, oil and grease, detergent, and phenol. The study was conducted using a purposive sampling method and determining the status of water quality based on Government Regulation No. 82/2001. The results of the physicochemical analysis of Gatal Lake showed that the water quality parameters which exceeded the water quality standards, are BOD (6.94 to 8.65 mg L), COD (9.58 to 15.7 mg/L), and DO (4.20 to 5.10 mg/L), while the parameters that did not exceed the water quality standards for Class I, II, III, and IV are temperature, TDS, TSS, pH, nitrate, nitrite, phosphate, Pb, Cd, H2S, oils and fats, detergents and phenols. On the basis of the STORET method, the water quality of Gatal Lake for Class I, II, and III are included in the highly polluted category, and for Class IV is in the moderate category.
Źródło:: Journal of Ecological Engineering; 2021, 22, 3; 99-110
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Water resource modelling for the Lake Tana sub-basin using the Mike Basin model for current and future water resource development scenarios
Autorzy:: Mulat, Asegdew G.
Powiązania:: https://bibliotekanauki.pl/articles/1844353.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: development scenarios
Lake Tana sub-basin
Mike Basin model
modelling
reservoir operation
water resource
Opis:: Rainfall in the Lake Tana basin is highly seasonal and the base flow contribution is also low resulting in the need for reservoirs to meet the agricultural demand during the dry season. Water demand competition is increasing because of intense agricultural production. The objective of this study is to develop water balance models. The Mike Basin model has been selected for water allocation modelling and identifying potential changes needed to the existing water allocation scheme to reduce the stress due to increased water demand. The study considers baseline and future development scenarios. The construction of new dams results in two competing effects with respect to evaporation loss. The first effect is increased evaporation from new reservoirs, while the other is reduced evaporation from the Lake Tana as a result of a decreased surface area of the lake and reduced inflow of water to the lake. Once a dam is built, there will be an additional free water surface area and more evaporation loss. In dry months from January to May, the irrigation water demand deficit is up to 16 Mm3. It is caused by reservoirs built in the basin, which reduce the inflow to the Lake Tana. The inflow varies between wet and dry months, and there is more water flow in wet months (July, August and September) and reduced flow in dry months because of the regulatory effects produced by the reservoirs.
Źródło:: Journal of Water and Land Development; 2021, 48; 215-224
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Influence of a lake on river water thermal regime: A case study of Lake Sławianowskie and the Kocunia River (Pomeranian Lakeland, Northern Poland)
Autorzy:: Nowak, Bogumił
Ptak, Mariusz
Stanek, Paulina
Powiązania:: https://bibliotekanauki.pl/articles/108570.pdf
Data publikacji:: 2020
Wydawca:: Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:: river-lake system
water temperature
measurement data
Opis:: Water temperature is one of the basic physical parameters of rivers and lakes. Rising temperature can transform these ecosystems over a broad range of factors (water mixing, water quality, biological conditions, etc.). In the case of rivers, their thermal regimes also can be modified by local conditions (e.g., tree cover, adjoining water bodies, etc.). In this paper, we address the functioning of the river-lake system in northern Poland (Kocunia River-Lake Sławianowskie) in terms of the effect of the lake on temperature conditions in the river. Dependencies in daily water temperatures between stations located above and below the lake were assessed with linear regression. Based on daily morning water temperatures for the period 2012-2017, it was determined that water temperature in the river below the lake was higher than at the measurement site located above the lake by an average of 1.1°C. The greatest differences were recorded in summerautumn months when average monthly downstream water temperatures were as much as 3.9°C higher than upstream water temperatures. This phenomenon is an example of a local factor (the lake) magnifying global factors, i.e. rising temperatures associated with climate change. The information in this paper can provide future reference for decision makers and state institutions with responsibility for measures aimed at reducing the effects of climate change.
Źródło:: Meteorology Hydrology and Water Management. Research and Operational Applications; 2020, 8, 1; 78-83
2299-3835
2353-5652
Pojawia się w:: Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Ocena warunków ekologicznych Jeziora Góreckiego za pomocą makrofitów
Assessment of the ecological conditions of the Góreckie Lake based on macrophytes
Autorzy:: Pietruczuk, Karol
Dajewski, Krzysztof
Czarnecki, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/1574951.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: makrofity
indeks ESMI
Jezioro Góreckie
monitoring wód
stan ekologiczny
macrophytes
ESMI index
Góreckie Lake
surface water monitoring
ecological state
Opis:: Artykuł przedstawia wyniki badań makrofitowych Jeziora Góreckiego uzyskanych w oparciu o Makrofitowy indeks stanu ekologicznego (ESMI). Badania wykonano dwukrotnie – w lipcu 2013 oraz 2019 roku w momencie maksymalnego zróżnicowania fitocenotycznego. Zgodnie z metodyką wyznaczono 16 reprezentatywnych transektów o szerokości, co najmniej 30 metrów. W 2019 roku odnotowano znaczną poprawę warunków ekologicznych jeziora, co potwierdza wyższa wartość indeksu ESMI oraz zmiana stanu ekologicznego z umiarkowanego na dobry. O pozytywnych zmianach świadczą intensywny rozwój roślinności zanurzonej oraz wzrost wartości indeksów różnorodności i zasiedlenia fitolitoralu przez elodeidy. Uzyskane wyniki, a w szczególności wzrost średniej i maksymalnej głębokości występowania roślin, potwierdzają stopniową regenerację zespołu makrofitów w jeziorze na skutek wzrostu przejrzystości wody.
The article presents the results of macrophyte research of the Góreckie Lake basing of the Macrophyte Ecological Status Index (ESMI). The field survey were done twice – in July 2013 and 2019 at the time of optimum vegetation. According to the methodology, filed survey were conducted by the 16 representative transects, with a width of at least 30 meters. The ecological conditions of the lake significantly improved in 2019, which is confirmed the higher value of the ESMI index, and the lake changed its ecological status from moderate to good. The positive changes evidenced by the intensive development of submerged vegetation and increased values of diversity and colonization the phytolitoral by elodeids. The results on the depth of occurrence of plant growth, confirms a gradual recovery teams macrophytes in the lake due to the increase in water transparency.
Źródło:: Inżynieria Ekologiczna; 2020, 21, 3; 17-23
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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