Academic literature on the topic 'Natural water bodies'

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Journal articles on the topic "Natural water bodies"

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Izaguirre, Irina, and Juan F. Saad. "Phytoplankton from natural water bodies of the Patagonian Plateau." Advances in Limnology 65 (July 7, 2014): 309–19. http://dx.doi.org/10.1127/1612-166x/2014/0065-0048.

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Izmailova, A. V., and N. Yu Korneenkova. "Water Resources of Natural and Artificial Water Bodies in Europe." Water Resources 49, no. 1 (February 2022): 1–9. http://dx.doi.org/10.1134/s0097807822010079.

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Launiainen, Jouko, and Bin Cheng. "Modelling of ice thermodynamics in natural water bodies." Cold Regions Science and Technology 27, no. 3 (June 1998): 153–78. http://dx.doi.org/10.1016/s0165-232x(98)00009-3.

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Wang, Yong, Shanlong Lu, Feng Zi, Hailong Tang, Mingyang Li, Xinru Li, Chun Fang, and Harrison Odion Ikhumhen. "Artificial and Natural Water Bodies Change in China, 2000–2020." Water 14, no. 11 (May 30, 2022): 1756. http://dx.doi.org/10.3390/w14111756.

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Artificial and natural water bodies, such as reservoirs, ponds, rivers and lakes, are important components of water-related ecosystems; they are also important indicators of the impact of human activities and climate change on surface water resources. However, due to the global and regional lack of artificial and natural water bodies data sets, understanding of the changes in water-related ecosystems under the dual impact of human activities and climate change is limited and scientific and effective protection and restoration actions are restricted. In this paper, artificial and natural water bodies data sets for China are developed for the years 2000, 2005, 2010, 2015 and 2020 based on satellite remote sensing surface water and artificial water body location sample data sets. The characteristics and causes of the temporal and spatial distributions of the artificial and natural water bodies are also analyzed. The results revealed that the area of artificial and natural water bodies in China shows an overall increasing trend, with obvious differences in spatial distribution during the last 20 years, and that the fluctuation range of artificial water bodies is smaller than that of natural water bodies. This research is critical for understanding the composition and long-term changes in China’s surface water system and for supporting and formulating scientific and rational strategies for water-related ecosystem protection and restoration.
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Gaikwad, Ranjitsing Pandurang, and Sagar Gavande. "Major Factors Contributing Growth of Water Hyacinth in Natural Water Bodies." International Journal of Engineering Research 6, no. 6 (2017): 304. http://dx.doi.org/10.5958/2319-6890.2017.00024.1.

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Prokopiev, S. I., T. E. Ovchinnikova, and O. F. Vasiliev. "Thermodynamic characteristics of water in natural water bodies with a high mineralization." Izvestiya, Atmospheric and Oceanic Physics 46, no. 2 (April 2010): 256–60. http://dx.doi.org/10.1134/s0001433810020143.

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Branche, Christine M., Joseph E. Sniezek, Richard W. Sattin, and Irene R. Mirkin. "Water recreation-related spinal injuries: Risk factors in natural bodies of water." Accident Analysis & Prevention 23, no. 1 (February 1991): 13–17. http://dx.doi.org/10.1016/0001-4575(91)90030-9.

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Solarski, Maksymilian, Alicja Pradela, and Mariusz Rzętała. "Natural and anthropogenic influences on ice formation on various water bodies of the Silesian Upland (southern Poland)." Limnological Review 11, no. 1 (January 1, 2011): 33–44. http://dx.doi.org/10.2478/v10194-011-0025-1.

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Natural and anthropogenic influences on ice formation on various water bodies of the Silesian Upland (southern Poland)The aim of the study was to identify patterns of ice-related phenomena on 39 selected anthropogenic water bodies in the Silesian Upland in southern Poland. The core research was conducted in the winter season of 2009/2010, between December and March. Field measurements and observations were conducted every two days during the freezing and thawing phases and every four days at the time of continuous ice cover. Data were interpolated to cover days without observations. Differences in the ice cover phenology on these water bodies were caused by natural conditions (morphometric and hydro-meteorological) and human activity (thermal pollution). Two principal groups of anthropogenic water bodies were identified in terms of the ice phenomena: lakes and ponds with a natural or quasi-natural pattern of ice phenomena and water bodies featuring various degrees of human impact. The thickness of the ice-cover was found to vary, which was a source of great danger to the users of the water bodies in the winter season.
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Zikirova, Komila Ya, and Ugloy B. Tursunboeva. "THE ROLE OF GAT TECHNOLOGIES IN THE STUDY OF SURFACE WATER BODIES IN JIZZAKH REGION." Journal of Geography and Natural Resources 02, no. 01 (January 1, 2022): 121–29. http://dx.doi.org/10.37547/supsci-jgnr-02-01-17.

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Zhang, Hongbo, Yan Li, Jianjun Chen, Quanjiao Chen, and Ze Chen. "Perpetuation of H5N1 and H9N2 avian influenza viruses in natural water bodies." Journal of General Virology 95, no. 7 (July 1, 2014): 1430–35. http://dx.doi.org/10.1099/vir.0.063438-0.

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Water bodies are an important route for the spread and transmission of avian influenza virus (AIV). The determining factor for an AIV to transmit through diffusion in water is the term of viability of the virus in the water body. To better understand the perpetuation of AIV in natural water bodies, and thus the risks of AIV spread and transmission via such bodies, we systematically studied the inactivation dynamics of two AIV strains (H5N1 and H9N2) at different temperatures in water bodies of important migratory bird habitats within China (Dongting Lake, Poyang Lake, the Hubei segment of the Yangtze River and Qinghai Lake). We also studied the impact of water-borne micro-organisms on the perpetuation of AIV. Our findings indicated that water is very likely an important route for the epidemic spread of AIV, especially during the autumn and winter seasons. In addition, water-borne micro-organisms might antagonize the persistence of AIV.
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Dissertations / Theses on the topic "Natural water bodies"

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Veron, Fabrice. "Turbulent mixing at the surface of natural water bodies : breaking waves and Langmuir circulations /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035438.

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Razgour, Orly. "The Effect of microhabitat characteristics and interspecific interactions on bat community patterns over natural water bodies in desert environments /." [Sedeh Boker, Israel] : Ben-Gurion University of the Negev, 2008. http://aranne5.lib.ad.bgu.ac.il/others/RazgourOrly.pdf.

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Rizzo, Luiz Rafael. "Análise da conjuntura dos recursos hídricos para abastecimento : Jaú – SP /." Ilha Solteira, 2018. http://hdl.handle.net/11449/180541.

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Orientador: Edson Luís Piroli
Resumo: Com o crescimento da população urbana mundial, há um aumento na demanda pelo abastecimento público de água, que é fornecidapelas águas doces de rios, lagos e águas subterrâneas. Segundo a ANA (Agência Nacional de Águas, 2017), o abastecimento urbano de água foi o segundo maior usuário de recursos hídricos de água doce do Brasil em 2016. Com uma oferta finita e uma demanda crescente, muitas cidades em todo o país tem enfrentado escassez de água. Além do consumo, as atividades antrópicas em torno de áreas urbanas podem causar impactos negativos na qualidade dos recursos hídricos locais utilizados para o abastecimento, diminuindo ainda mais a disponibilidade de água doce. O objetivo desta pesquisa foi estudar a vulnerabilidade das águas subterrâneas à contaminação antrópica e identificar fontes potenciais de contaminação às águas subterrâneas e superficiais. Esta análise foi realizada no município de Jaú, São Paulo, visando identificar possíveis soluções para evitar prováveis crises de escassez de água, como as enfrentadas nos últimos anos. A área de estudo incluiu a área urbana do município e três microbacias localizadas a montante da cidade que contêm os mananciais que são utilizados para abastecimento de água. Primeiro, foi gerado um mapa de vulnerabilidade dos recursos hídricos subterrâneos que foi desenvolvido para a área usando o método DRASTIC (ALLER et al., 1987). Os resultados mostraram que 50% da área tinham uma vulnerabilidade média, enquanto 25% da área apresentavam ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: With a growing urban population globally, there is increasing demand for urban water supply and the consumption of freshwater resources from rivers, lakes, and groundwater. According to ANA (National Agency of Water, 2017), urban water supply was the second largest user of freshwater resources in Brazil in 2016. With a finite supply and an increasing demand, this is leading to water shortages in cities across the country. In addition to consuming water, human activities around urban environments can cause a degradation in the water quality of the local freshwater resources used for urban water supply, further decreasing the availability of freshwater resources. The objective of this research was to study the vulnerability of groundwater to anthropogenic contamination and identify potential sources. This analysis was carried out using in the municipality of Jaú, São Paulo in order to identify possible solutions to the water shortage crisis that it has faced in recent years. The study area included the urban area surrounding the municipality and three micro-basins located upstream of the city which contain rivers that are used for urban water supply. First, a vulnerability map of the groundwater resources was developed for the area using the DRASTIC method (ALLER et al., 1987). The results showed that 50% of the area had a medium vulnerability while 25% of the area had very high vulnerability of anthropogenic contamination in the groundwater table. Then a land use map was devel... (Complete abstract click electronic access below)
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Martins, João Pedro Fernandes Farinha de Oliveira. "Avaliação ecohidrológica de caudais modificados e de caudais ecológicos em troços de rios modificados." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5373.

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Mestrado em Gestão e Conservação de Recursos Naturais - Instituto Superior de Agronomia
This study aimed to improve our understanding of the ecohydrological characteristics of environmental and modified flows in Portuguese rivers considered Heavily Modified Water Bodies (HMWB), using the Indicators of Hydrologic Alteration (IAH) method. For a given set of "heavily modified river sections", this study did the characterization and analysis of present flow regimes observed, natural flow regimes, and ecological flow requirements simulated by the method of INAG, DSP (2002). Based on Indicators of Hydrologic Change, the determination of the deviations from natural regimes was performed for the present hydrological regimes: both modified and ecological. The analysis of indicators of hydrologic alteration, based on ecohydrologic assumptions that guide the definition of environmental flow regimes, allowed to develop proposals for environment mitigation, whose effectiveness should be evaluated in the context of monitoring the ecological quality of HMWB sections in order to achieve the environmental objectives set out in national and European legislation on water resources the Water Frame Directive WFD (Directive 2000/60/EC) transposed to the Portuguese legislation by the Water Law - Law n.º 58/2005, 29 December 2005
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Briggs, Brian D. J. "The use of waterbodies in South-West London by Gadwall and Shoveler : implications for nature conservation." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670127.

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Mic, Dumitrita Suzana. "Producing Collaborations Through Community-Level Processes of Climate Change and Water Management Planning." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2170.

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While much attention has been given to the ways local communities may be impacted by climate change, this dissertation focuses ethnographically on the local agencies decision-making processes, a less-studied aspect of this topic. The primary purpose of this dissertation research is to understand how government agencies in southern Florida integrate climate change into their decision-making processes while dealing with political resistance. This research expands our understanding on the cultural politics of a new kind of environmental change, where national and international climate-change politics is brought into local water politics to illuminate how new and not so new visions about life in the contemporary metropolis collide and collude. Using multiple research methods including ethnographic fieldwork, participant observation, semi-structured interviews, and document research, I analyze the activities of the Miami-Dade County Climate Change Advisory Task Force Committee (MDC-CCATF) as well as the water management practices of the regional water management agency, the South Florida Water Management District (SFWMD). My findings include the following: (1) the Task Force activities have spearheaded Miami’s institutional adaptation to climate change; (2) historic legacies have expanded and complicated decision-making processes at the District; (3) a focus on the certainties of climate-change science allows climate change to persist in politically contentious planning contexts. My dissertation concluded that while planning for potential climate-change impacts can be difficult due to multiple institutional constraints that resource agencies like the District have, scientists and policy-makers have crafted an innovative culture that is particularly visible at sites where science and decision making intersect.
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Books on the topic "Natural water bodies"

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Leathwick, J. R. Identifying freshwater ecosystems with nationally important natural heritage values: Development of a biogeographic framework. Wellington, N.Z: Science & Technical Pub., Dept. of Conservation, 2007.

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Valentine, James. Florida's magnificent water. Sarasota, Florida: Pineapple Press, Inc., 2014.

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Michael, Woods. Seven natural wonders of Africa. Minneapolis: Twenty-First Century Books, 2009.

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Fenton, Matthew McCann. Time: Nature's wonders : the science and splendor of Earth's most fascinating places. New York, NY: Time Books, 2008.

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Tihonova, Irina, and Nataliya Kruchinina. Environmental monitoring of water bodies. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/966056.

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The tutorial covers issues related to water monitoring systems and assessment of anthropogenic impact on water bodies. The influence of hydrodynamic conditions on the distribution of pollutants, the tasks and principles of monitoring systems at the global and local levels, and comprehensive water quality assessments were studied. Mathematical models of water quality assessment and forecasting are presented. Additionally, information on biological monitoring of water bodies is highlighted. Meets the requirements of the Federal state educational standards of higher education of the latest generation. For University students studying in the areas of training 05.03.06 "Ecology and nature management", 18.03.02 "Energy and resource - saving processes in chemical technology, petrochemistry and biotechnology", 20.03.01 "Technosphere safety", 20.03.02 "nature management and water use".
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Office, General Accounting. Parks and recreation: Recreational fee authorizations, prohibitions, and limitations : report to the Chairman, Subcommittee on Public Lands, Reserved Water and Resource Conservation, Committee on Energy and Natural Resources, United States Senate. Washington, D.C: The Office, 1986.

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Warren, Howarth Robert, Stewart J. W. B, and Ivanov M. V, eds. Sulphur cycling on the continents: Wetlands, terrestrial ecosystems, and associated water bodies. Chichester: Published on behalf of the Scientific Committee on Problems of the Environment of the International Council of Scientific Unions, and in collaboration with the United Nations Environment Programme by Wiley, 1992.

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Rau, Dana Meachen. Floating. New York: Marshall Cavendish Benchmark, 2006.

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El vuelo de Minerva: Un acercamiento a la condición femenina en Toluca durante el siglo XIX. Toluca de Lerdo: Gobierno del Estado de México, 2008.

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Schulz, Harry Edmar, ed. Hydrodynamics - Natural Water Bodies. InTech, 2012. http://dx.doi.org/10.5772/1352.

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Book chapters on the topic "Natural water bodies"

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Sontakke, N. A., H. N. Singh, and Nityanand Singh. "Monitoring Physiographic Rainfall Variation for Sustainable Management of Water Bodies in India." In Natural and Anthropogenic Disasters, 293–331. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-2498-5_14.

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Castelvetro, Valter, Andrea Corti, Alessio Ceccarini, Jacopo La Nasa, Tommaso Lomonaco, Antonella Manariti, Enrico Manco, Francesca Modugno, and Virginia Vinciguerra. "Understanding the Source, Distribution, and Fate of Micro- and Nanoplastics in Natural Water Bodies." In Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition), 2167–71. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-51210-1_339.

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Shahjahan, Abu Taib Mohammed, and Khandaker Shabbir Ahmed. "Study of Urban Water Bodies in View of Potential for Micro-climatic Cooling and Natural Purification of Waste Water." In Balanced Urban Development: Options and Strategies for Liveable Cities, 199–209. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28112-4_13.

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Gichuhi, Getrude, and Stephen Gitahi. "Sustainable Urban Drainage Practices and Their Effects on Aquifer Recharge." In African Handbook of Climate Change Adaptation, 809–27. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_67.

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AbstractBetween 1994 and 2006, an 18% increase of freshwater flow into the earth’s ocean was recorded, as well as extreme weather events such as prolonged drought and intense floods. Following this period was an era of increased evaporation from oceans and seas, which heightened global warming in Africa. This chapter proposes the use of man-made aquifers recharge processes as methods of draining water into the soil before the runoff water reaches water bodies. Source control involves controlling the volume of water entering drainage systems or rivers by cutting off runoff water through storing for reuse or evapotranspiration as seen in green roofs. Pre-treatment is the use of trenches to filter and remove contaminants from water before getting to water bodies. Retention systems on the other hand is controlling the rate at which water is discharged to waterways by providing water storage areas such as ponds, water retention areas, etc., while Infiltration Systems are areas that allow natural soaking of stormwater runoff to the ground naturally recharging the water table. The proposed methods will see replenishing of the water table, a great leap in the efforts of curbing global warming. This practice can easily be adopted by both individuals and government as we build more and more buildings creating a balance between the need for human settlement and the natural way of water replenishing itself. The methods do not introduce extra costs to an already existing budget. In some cases, the methods help to reduce the costs of projects especially in urban areas. Africa which hosts many of the growing countries sees and will continue to experience surges in urbanization. For such, these methods presented in this topic will be, if implemented, a best method to solve the urban drainage problems before this even occurs.
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Gichuhi, Getrude, and Stephen Gitahi. "Sustainable Urban Drainage Practices and Their Effects on Aquifer Recharge." In African Handbook of Climate Change Adaptation, 1–19. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42091-8_67-1.

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AbstractBetween 1994 and 2006, an 18% increase of freshwater flow into the earth’s ocean was recorded, as well as extreme weather events such as prolonged drought and intense floods. Following this period was an era of increased evaporation from oceans and seas, which heightened global warming in Africa. This chapter proposes the use of man-made aquifers recharge processes as methods of draining water into the soil before the runoff water reaches water bodies. Source control involves controlling the volume of water entering drainage systems or rivers by cutting off runoff water through storing for reuse or evapotranspiration as seen in green roofs. Pre-treatment is the use of trenches to filter and remove contaminants from water before getting to water bodies. Retention systems on the other hand is controlling the rate at which water is discharged to waterways by providing water storage areas such as ponds, water retention areas, etc., while Infiltration Systems are areas that allow natural soaking of stormwater runoff to the ground naturally recharging the water table. The proposed methods will see replenishing of the water table, a great leap in the efforts of curbing global warming. This practice can easily be adopted by both individuals and government as we build more and more buildings creating a balance between the need for human settlement and the natural way of water replenishing itself. The methods do not introduce extra costs to an already existing budget. In some cases, the methods help to reduce the costs of projects especially in urban areas. Africa which hosts many of the growing countries sees and will continue to experience surges in urbanization. For such, these methods presented in this topic will be, if implemented, a best method to solve the urban drainage problems before this even occurs.
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Lambert, Maryse, and Jean-Louis Fréchette. "Analytical Techniques for Measuring Fluxes of CO2 and CH4 from Hydroelectric Reservoirs and Natural Water Bodies." In Greenhouse Gas Emissions — Fluxes and Processes, 37–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/978-3-540-26643-3_3.

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Savalli, Stefano, Lucia Saganeiti, Michele Greco, and Beniamino Murgante. "Integrated Assessment of the Anthropic Pressure Level on Natural Water Bodies: The Case Study of the Noce River (Basilicata, Italy)." In Computational Science and Its Applications – ICCSA 2019, 269–78. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24311-1_19.

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Pfahler, V., J. Adu-Gyamfi, D. O’Connell, and F. Tamburini. "The Use of the δ18OP to Study P Cycling in the Environment." In Oxygen Isotopes of Inorganic Phosphate in Environmental Samples, 1–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97497-8_1.

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AbstractPhosphorus (P) fertilizers are known to increase crop productivity; however, when applied in excess, it can cause serious environment pollution. Monitoring P pollution in natural environments using stable isotopes has been difficult because P has only one stable isotope (31P) making the use of P stable isotope tracing not an option. Radioactive P isotopes (32P and 33P) have been used but its drawbacks are the short half-life, health risks and safety procedures required to apply them in agricultural catchments. Phosphorus in organic and inorganic P forms is strongly bonded to oxygen (O), which has three stable isotopes, providing a system to track P cycling in agricultural catchments and environment using the stable isotopes of O in phosphate (δ18O-PO4). In recent years, various studies have indicated that the analysis of the stable isotopic composition of oxygen (O) bound to P (δ18Op) to better understand P cycling in the environment, has become a promising tracer (surrogate) to investigate soil P transformation, plant P uptake and to trace the sources of P from the soil to water bodies and the environment. The chapter outlines the background and examples of δ18Op studies in sediments, soils, fresh water, mineral fertilizers and plants.
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Pisman, Ann, and Stijn Vanacker. "Diagnosis of the State of the Territory in Flanders. Reporting About New Maps and Indicators Differentiating Between Urban and Rural Areas Within Flanders." In Smart and Sustainable Planning for Cities and Regions, 209–21. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57764-3_14.

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AbstractWithin the several European analyses of spatial patterns, Belgium and Flanders take a specific position. The average ‘settlement area percentage’ (i.e., all land used beyond agriculture, semi-natural areas, forestry, and water bodies) for Europe is 4%, but 32% of the Flemish area is occupied with artificial land. Belgium has the highest score for urban-sprawl indicators, and within the European context, almost the entire area is considered urban. The aim of the research presented in this paper is to expand on the theme of indicators for spatial patterns by analyzing the Flemish area with detailed data across various scales. The results are collected in a report, the ‘Ruimterapport’— ‘RURA’, published in 2018. RURA is a bundling and compilation of research results from very diverse sources, amongst others studies from the Department of Environment and Spatial Development of Flanders and of Espon studies. This article presents the most important results from RURA and further positions them in international comparative literature. New maps and indicators are developed for the urban/peri-urban/rural dimensions of the human settlement area, urban sprawl, and settlement patterns by differentiating amongst others between urban centers, ribbon development, and scattered buildings. The paper gives a quantitative, methodological, and empirical contribution to the field of urban and regional development processes and contributes to conceptualizations of space. The case of Flanders, with its specific sprawl pattern, illustrates the difficulties spatial planning policy makers currently are facing, dealing with the complexity of space and society.
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"ANALYZING SURFACE RECEIVING WATER BODIES." In Analyzing Natural Systems, 267–410. Routledge, 2015. http://dx.doi.org/10.4324/9781315670966-13.

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Conference papers on the topic "Natural water bodies"

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Kurzeja, Robert J., Malcolm M. Pendergast, Eliel Villa-Aleman, and Alfred J. Garrett. "Use of natural bodies of water for IR calibration targets." In Aerospace/Defense Sensing, Simulation, and Controls, edited by Wendell R. Watkins, Dieter Clement, and William R. Reynolds. SPIE, 2001. http://dx.doi.org/10.1117/12.440072.

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Nikulin, Dmitry, and Антон Гребенников. "Spectrophotometric study of turbid media in natural bodies of water." In 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii and Gennadii G. Matvienko. SPIE, 2021. http://dx.doi.org/10.1117/12.2601581.

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Yukhnevich, G. G., and E. A. Belova. "Sewage and natural water treatment with higher plants." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.283.

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The application of Eichhornia azurea and Eichornia crassipe for the treatment of organomineral wastewater of small production facilities in model experiments and the waters of surface water bodies saturated with nutrients was studied.
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Menon, Gayathri S., Maneesha Vinodini Ramesh, and P. Divya. "A low cost wireless sensor network for water quality monitoring in natural water bodies." In 2017 IEEE Global Humanitarian Technology Conference (GHTC). IEEE, 2017. http://dx.doi.org/10.1109/ghtc.2017.8239341.

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Chae, Eun Jung, and Yin Lu Young. "Flow-Induced Vibration Characteristics of Lightweight Lifting Bodies in Water." In SNAME 13th International Conference on Fast Sea Transportation. SNAME, 2015. http://dx.doi.org/10.5957/fast-2015-008.

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As interest in maritime applications of lightweight materials increases, understanding the flow-induced vibration characteristics becomes more important to ensure structural safety and to optimize performance and control. The objective of this paper is to investigate the flow-induced vibration characteristics of lightweight lifting bodies in water. The results show that the in-water to in-air natural frequency ratios decrease rapidly as the structure becomes lighter, and the natural frequencies become mode and speed dependent due to changes in the fluid added mass, damping, and disturbing force terms. The fluid damping and stiffness terms are also modified by viscous fluid-structure interaction effects, including changes in the center of pressure, separation, as well as generation and interaction of vortices with body motions. The results also show that the linear potential theory significantly over-predicts the fluid damping for lightweight lifting bodies in water. Hence, care is needed when designing lightweight lifting bodies in water to avoid hydroelastic instability failures, and to avoid unexpected accelerated fatigue, noise, vibration issues.
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Kovalenko, Yu O., M. V. Prychepa, and M. S. Prokopuk. "ASSESSMENT OF THE ECOLOGICAL STATE OF WATER BODIES IN KYIV BY COMMUNITIES OF MACROPHYTES, FISH AND BIRDS." In IDEAS AND INNOVATIONS IN NATURAL SCIENCES. Baltija Publishing, 2021. http://dx.doi.org/10.30525/978-9934-26-047-6-21.

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7

Rassadina, E. V., and M. A. Viderker. "Ecomonitoring of water protected natural areas of the Ulyanovsk region on the example of the Yulovsky pond." In VIII Vserossijskaja konferencija s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka». Publishing center of Ulyanovsk State University, 2021. http://dx.doi.org/10.34014/mpphe.2021-168-171.

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The Ulyanovsk region is rich in water natural monuments, and the Yulovsky pond is one of the oldest. At the same time, there is no generally accepted methodology for conducting environmental monitoring for protected water bodies. We propose one of the options for the methodology for assessing the anthropogenic load on protected water bodies in order to optimize the protection regime of these territories. Key words: Yulovsky pond, ecological monitoring, specially protected natural area, chemical analysis of water, analysis of vegetation.
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Ivaviciute, Giedre. "The change of natural landscape in Lithuania." In Research for Rural Development 2020. Latvia University of Life Sciences and Technologies, 2020. http://dx.doi.org/10.22616/rrd.26.2020.031.

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The purpose of this article is to carry out an analysis of the natural landscape of the Republic of Lithuania in 2004–2019. During the preparation of the article, the following scientific methods were used: literature analysis, determination and evaluation of the current situation, grouping method, comparison method, graphical method, analytical and statistical analysis methods, logical analysis. The article analyzes the change of the area of natural (natural, subnatural) landscape components (natural forests, wetlands, water bodies) during the period between the years 2004 and 2019. The analysis showed that the two components of the natural landscape of the Republic of Lithuania during 2004–2019 increased: the forest area (132,849.03 ha or 6.15%) and water bodies (3,668.49 ha or 1.38%). Unfortunately, the area of wetlands has decreased by 50,990.20 ha (35.05%). During the analyzed period, the natural landscape of Lithuania increased by 85527.97 ha or 3.39%. At present, it is particularly important to care for and restore valuable landscape complexes to fulfill their ecosystem functions. One of the most important challenges is to reconcile urbanization and nature conservation so as not to reduce significant areas of the country’s natural landscape.
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Hamidi, Sajad A., Baran Abbasi, and Helia Hamidi. "Investigation of COVID-19 Lockdown Effects on Water Quality in Natural Bodies of Water in the Great Lakes Region." In World Environmental and Water Resources Congress 2021. Reston, VA: American Society of Civil Engineers, 2021. http://dx.doi.org/10.1061/9780784483466.061.

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Brodskaya, Nina, Liudmila Vampilova, Alexandra Sokolova, and Olga Marinina. "IMPACT OF TECHNOGENIC RUNOFF FROM THE TERRITORY OF THE MINING COMPLEX ON NATURAL WATER BODIES." In 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021. STEF92 Technology, 2021. http://dx.doi.org/10.5593/sgem2021/5.1/s20.033.

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Reports on the topic "Natural water bodies"

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Alokhina, Tetiana, and Vadym Gudzenko. Distribution of radionuclides in modern sediments of the rivers flowing into the Dnieper-Bug Estuary. EDP Sciences, 2021. http://dx.doi.org/10.31812/123456789/4617.

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The article presents the results of large-scale studies of the content and distribution of natural and man-made radionuclides in the sediments of the rivers flowing into the Dnieper-Bug estuary. The article also presents the results of the granulometric analysis of the surveyed water bodies. The data about natural radioactive elements in the sediments rivers flowing into the Dnieper-Bug estuary obtained in this research are demonstrated moderate specific activity, which, however, clearly correlates with the granulometric composition of sediments. The 137Cs determined by us is contained in the sediments of all studied water bodies and the places of it greatest concentration coincide with the areas in which the sediment is represented mainly by the pelitic fraction. The data obtained in this research can serve as a baseline data in natural radionuclides concentration in sediments rivers flowing into the Dnieper-Bug estuary. The obtained data can also be used for further monitoring of the specific activity of man-made radionuclides, in particular 137Cs.
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