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This article deals with new Czech Standard 75 7221 Water quality – Classification of surface water quality [1] and replaces the previous 19 years old standard [2]. It was necessary to take into account actual demands of the surface water protection from two points of view: pollution indicator selection and current environmental quality standards. The range of pollution indicators and limit values of water classification were revised.
The aim of this study is a summary of problems dealing with microbial pollution of flowing surface waters in the Czech Republic. Limits of counts of indicator microorganisms in current legislation and technical standards are presented, together with characteristics of the mostly used indicators of faecal pollution and methods of their detection.
The paper presents results and interpretation of long-term monitoring of occurrence and behaviour of radioisotopes 3H, 90Sr and 137Cs in surface water in the vicinity of the Temelín Nuclear Power Plant. 3H, 90Sr and 137Cs originate predominantly from residual contamination due to atmospheric nuclear weapons tests and the Chernobyl disaster in the last century.
Monitoring and maintenance of water management infrastructure require knowledge of their reference state characterizing their design parameters. The reference state is derived primarily from the available project documentation, which is appropriately chosen to be converted to a digital model of the bottom terrain.
The interview deals with the analysis of the current situation in the area of water protection zones often discussed today. The questions are answered by experts Ing. Jiří Novák of Vodárenská akciová společnost, a. s., Brno and Ing. Petra Oppeltová, Ph.D., from the Mendel University in Brno.
The article provides basic information on the current state of drainage and sewage treatment in Moldova. These data are a summary of survey findings from individual localities (usually cities over 10 000 inhabitants) carried out within the framework of the Czech Republic’s foreign development cooperation project.
Discussed the issue of the possible use of transport Morava River and Thaya to Musov can be divided into two historically documented, relatively short time, the stages where you can find only minimal mutual respect.
Inland waterways in the 19th and 20th centuries became an equal partner in road and rail transport in all developed countries, particularly suitable for medium and long-distance freight.
The project “Submerged cultural and natural heritage of South Moravia“ was solved in the T. G. Masaryk Water Research Institute, p. r. i., in 2013–2016. Project DF13P01OVV012 was founded by the Programme of applied research and development of national and cultural identity (NAKI) supported by Ministry of Culture of the Czech Republic.
The construction of water dams fundamentally changes nature and landscape not only in the flooded areas but also out of them, including all structures and links and leading to habitat loss. Three characteristically different South Moravian water reservoirs – the Vranov Dam, the Brno Dam and system of water reservoirs of Nové Mlýny have been studied in the project “Submerged cultural and natural heritage of South Moravia” (DF13P01OVV012) supported by the Ministry of Culture of the Czech Republic.
One of the fundamental branches of landscape ecology is the assessment of changes in a landscape through comparisons of its state (usage) at different points in time. This typically employs maps, photographs, and aerial and satellite photography.
This paper deals impacts of building of water reservoirs on land use changes in floodplains and adjacent areas of three reservoirs in southern Moravia – Nové Mlýny, Vranov, Brno. To monitor the development of land use the old topographic maps were used.
The ever-increasing number of floods in the lower reaches of the Dyje and Svratka caused the need to adjust their flows. In the 20th century was the need for dams to be built. The landscape allowed their construction near Vranov at Dyje and Kníničky at Svratka.
The period deals with the long development period, which later flooded the municipalities in accordance with the development of the Moravian countryside from the early modern period to the beginnings of the formation of civil society, the life of the inhabitants influenced the serfdom, the subservience, the robot work and the supremacy of the owners of the estate.
All three flooded areas lied in a different natural environment that shaped their fates. Archaeological sources have irreplaceable significance for understanding the changes in settlements. If no archaeological research was carried out before the construction of the Vranov Dam and the Brno Dam and we only depend on the findings from the surroundings, so before the construction of the dam on Dyje, the flooded area was systematically and archeologically investigated.
Within the project “Submerged cultural and natural heritage of South Moravia” a large amount of data was collected on the composition of aquatic and marsh plant communities in the Svratka and Dyje/Thaya Rivers before building reservoirs on these rivers.
When considering the development of water management and changes in the natural environment in the catchment area of the monitored water works, it is obvious that the most fundamental changes occurred on the areas directly flooded by the dam water, however the impact of the water management works is considerably larger.
Interview with doc. Ing. Antonín Buček, Ph.D., czech landscape ecologist, on the topic of the project and published book Flooded the cultural and natural heritage of South Moravia.
The first part the present study contains recommendations for the selection of representative observation period used for the calculation of average flow characteristics. This is the result of calculations based on time series of flows of the Vltava River in Prague with beginning in 1801.
The article presents the results of the project aimed at improving the situation in the catchment area of the Mostiště water reservoir where good water status is not achieved because of the high water load of nutrients.
Airborne laser imaging (LiDAR) has been carried out throughout the Czech Republic, enabling the creation of raster of digital model of terrain. This material is widely used in various fields. From the point of view of hydrology demands, however, the shortcoming of this technology resides in the absence of accurate/complete channel topography due to the absorption of the near-infrared laser beams by water.
The article describes hydrological and hydrogeological conditions in a small part of the Lišanský stream catchment near Rakovník. Natural conditions of this area have been influenced by human activity from the 15th century.
Interview with deputy research and development Ing. Jiří Hůlka of the National Radiation Protection Institute, which is a public research institution since 2011, when it was established by the decision of the chairman of the State Office for Nuclear Safety. The interview deals with radiation protection and public research institutions and their issues.
Testing laboratory is responsible for the sampling for the purposes of the Water Act, the Water Supply and Sewerage Act and the Public Health Protection Act. Requirements for the qualification and further training of samplers are defined by the laboratory in its controlled documentation, while in the case of water sampling; the new minimum requirements are set in the standard ČSN EN ISO 5667-14.
In 1980, on the occasion of the 90th anniversary of the birth of Academician Theodor Ježdík, the then Czech Central Committee of the Water Management Society of ČSVTS, announced at the instigation of prof. Ing. Dr. L. Votruba, DrSc., Diploma of Academician Theodor Ježdík as a prize for key works in the field of theory, research, development, preparation, construction and operation of water management works and equipment.
On 24 May 2016 there was a meeting of the general meeting ČVTVHS, z. s., on Novotného lávka.
Kolmatace je zcela přirozeným jevem, ale v umělých mokřadech využívaných k čištění a dočišťování odpadních vod je jevem nežádoucím. Proto je nutné při návrhu a provozování umělých mokřadů dodržovat zásady, které mohou vznik a rozvoj kolmatace významně omezit.
This article is available in Czech only. For translation or more information on this topic, please contact author. Dne 3. a 4. května 2017 se bude konat konference Radiologické metody v hydrosféře 17 v hotelu Zlatá hvězda v Litomyšli. Konference se budeme zabývat změnami v legislativě: nový atomový zákon č. 263/2016 Sb., vyhláška č. 360/2016 Sb., vyhláška… Read more »
The article deals with the assessment of the hydrological balance in a monthly time step in the territory of the Czech Republic, which was divided into 133 sub-basins for the period 1981–2015.
The aim of the study is the regionalization of the Czech Republic with respect to drought characteristics in individual catchments.
Exist tools for water balance, time series of water abstractions and their season variability, difference between permitted and real abstractions and impact of drought in 2015 were analysed and assessed in subtask Impact of Drought on Water Use Assessment.
The effect of nature-related measures on the water balance was modeled in the Trkmanka basin. The basin is located in the Moravia, south-east region of the Czech Republic.
An analysis and assessment of the nature-friendly measures potential for water retention in the landscape were carried out as a part of the work on the concept of protection against drought impacts in the Czech Republic.
In the context of a severe drought period, which has started in 2014, an inter-ministerial commission WATER-DROUGHT was established to prepare a strategic policy document on protection from impacts of drought and water scarcity in the Czech Republic.
Within the framework of the sub-task “Evaluation of the impacts of drought on aquatic and water-bound organisms in surface water bodies“ a project involving activities to support the state administration in the drought issue in 2016 was prepared mainly a review of the potential impacts of drought on individual elements and indicators of water status assessment.
Currently, new projects of water transfers are discussed as a potential measure for dealing with drought and water scarcity. However, there are some issues related with this measure, which require to be considered.
Physicians with a little exaggeration claim that a healthy person does not exist, only to be met with a poorly-diagnosed patient. This claim can also be applied to drinking water and wastewater.
The paper presents the preparatory phase of the draft of the drought management plan in the Czech Republic in the commenting process. The plan is a basic document of drought protection.
Historic civilizations have dried up, archaeologists find them under sand deposits. The oldest great civilization was in Mesopotamia on the territory of present-day Syria between the Euphrates and Tygris.
Sdělovací prostředky reagují především na aktuální situace a vzhledem k vyššímu výskytu extrémních situací, jako jsou epizody sucha, vlny veder, výskyt intenzivních srážek, je jejich komentování přirozeně častějším mediálním tématem. Z pohledu člověka odtrženého od přírody se může množství a frekvence tohoto typu informací zdát skutečně vysoká.