scholarly journals A simple model indicates that there are sufficient water supply points for fighting forest fires in the Czech Republic

2021 ◽  
Author(s):  
Jaroslav Holuša ◽  
Milan Koreň ◽  
Roman Berčák ◽  
Karolina Resnerová ◽  
Jiří Trombik ◽  
...  
Keyword(s):  
Czech Republic ◽  
Simple Model ◽  
Water Supply ◽  
Forest Fires ◽  
The Czech Republic

Monitoring of pesticides in drinking water: finding the right balance between under- and over-monitoring – experience from the Czech Republic

2021 ◽  
Author(s):  
Filip Kotal ◽  
František Kožíšek ◽  
Hana Jeligová ◽  
Adam Vavrouš ◽  
Daniel Gari Wayessa ◽  
...  
Keyword(s):  
Drinking Water ◽  
Czech Republic ◽  
Water Supply ◽  
The Czech Republic ◽  
The Right

The modern, risk-based approach requires that only those pollutants which are likely to be present in a given water supply should be monitored in drinking water. From this perspective, defining...

scholarly journals Comparison of Methods for the Assessment of Fire Danger in the Czech Republic

2019 ◽  
Vol 67 (5) ◽  
pp. 1285-1295 ◽  
Author(s):  
František Jurečka ◽  
Martin Možný ◽  
Jan Balek ◽  
Zdeněk Žalud ◽  
Miroslav Trnka
Keyword(s):  
Czech Republic ◽  
Forest Fire ◽  
Forest Fires ◽  
Fire Danger ◽  
Special Focus ◽  
Fire Weather ◽  
Fire Event ◽  
Fire Weather Index ◽  
The Czech Republic ◽  
Fire Danger Indices

The performance of fire indices based on weather variables was analyzed with a special focus on the Czech Republic. Three fire weather danger indices that are the basis of fire danger rating systems used in different parts of the world were assessed: the Canadian Fire Weather Index (FWI), Australian Forest Fire Danger Index (FFDI) and Finnish Forest Fire Index (FFI). The performance of the three fire danger indices was investigated at different scales and compared with actual fire events. First, the fire danger indices were analyzed for different land use types during the period 1956–2015. In addition, in the analysis, the three fire danger indices were compared with wildfire events during the period 2001–2015. The fire danger indices were also analyzed for the specific locality of the Bzenec area where a large forest fire event occurred in May 2012. The study also focused on the relationship between fire danger indices and forest fires during 2018 across the area of the Jihomoravský region. Comparison of the index values with real fires showed that the index values corresponded well with the occurrence of forest fires. The analysis of the year 2018 showed that the highest index values were reached on days with the greater fire occurrence. On days with 5 or 7 reported fires per day, the fire danger indices reached values between 3 and 4.

scholarly journals Evaluation of the SWAT model as an integrated management tool in the Švihov drinking water supply catchment

2019 ◽  
Vol 14 (No. 2) ◽  
pp. 76-83
Author(s):  
Jan Gregar ◽  
Jan Petrů ◽  
Jana Novotná
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Czech Republic ◽  
Water Supply ◽  
Integrated Management ◽  
Swat Model ◽  
Point Sources ◽  
Drinking Water Supply ◽  
Management Tool ◽  
The Czech Republic

Švihov dam, the largest drinking water source in the Czech Republic and Central Europe, has problems with eutrophication. The Švihov dam catchment spreads over 1200 km<sup>2</sup> and supplies over 1.5 million people in the capital of Prague and the Central Bohemian region with drinking water. Due to intensive agricultural activities and a lack of wastewater treatment plants in small settlements, the water quality is deteriorating. As a result, corrective measures need to be taken. Technological Agency of the Czech Republic supported this research which proposes different scenarios for a reduction of water quality degradation in the dam. The Trnávka dam watershed was chosen for study purposes as it occupies one quarter of the Švihov dam watershed. Hydrological balance was established using measured data. Point and non-point sources of nutrients were determined by field research and included in a Soil and Water Assessment Tool (SWAT) model. This study aims to propose complex watershed management to improve the state of the environment in the entire area and to reduce eutrophication. Different management practices would reduce nutrient loads of streams and increase water quality which is the critical factor in dam eutrophication. This research brings methodology and systematic approach to integrated management, and can be applied not only for the Švihov dam, but also for other watersheds, including those which function as drinking water supply.

scholarly journals Hollow tree fire is a useless forest fire category

2018 ◽  
Vol 64 (1) ◽  
pp. 67-78 ◽  
Author(s):  
Ivan Chromek ◽  
Karolina Lukášová ◽  
Roman Berčák ◽  
Jan Vaněk ◽  
Jaroslav Holuša
Keyword(s):  
Czech Republic ◽  
Statistical Analysis ◽  
Detailed Analysis ◽  
Forest Fire ◽  
Natural Environment ◽  
Forest Fires ◽  
The Czech Republic ◽  
Rescue Service ◽  
Hollow Tree ◽  
Critical Consideration

AbstractIn the Czech Republic and Slovakia, the term “hollow tree fire“ was first used in a publication in 1956 without being well defined and was then uncritically used in other publications. The term refers to fires occurring in the rotted, inner trunks of trees. The main aim of the current study was to determine whether the term should be considered a useful category for the statistical analysis of forest fires. The nature and causes of fires from 2006–2015 were assessed by performing a detailed analysis of the Fire Rescue Service of the Czech Republic (FRS CR) database. The database included a total of 7,256 fires in the natural environment, but only 18 of these were hollow tree fires. Most hollow tree fires were initiated by human carelessness, and only three were initiated by lightning. Based on our critical consideration of fire attributes, hollow tree fires should not be considered a category of forest fire. The presence of rotten trees is, however, a serious problem because such trees represent long-lasting sources of fire in forest stands and because they complicate firefighting. The numbers of rotten trees in forests is increasing, and firefighters should be made aware of the complications of extinguishing fires involving rotten trees in forests.

scholarly journals Sustainability of the Public Water Supply and Sewerage Services Operating System: A Case Study on the Example of the Czech Republic

2016 ◽  
Vol 47 (1) ◽  
pp. 32-39 ◽  
Author(s):  
M. Hájek ◽  
L. Petružela
Keyword(s):  
Czech Republic ◽  
Water Supply ◽  
Hydrological Cycle ◽  
State Regulation ◽  
Ecosystem Functions ◽  
Public Water Supply ◽  
Natural Ecosystem ◽  
Water Services ◽  
The Czech Republic ◽  
Environmental Objectives

Abstract Water services, as a necessity for natural ecosystem functions and a key output from public governance, play a crucial role in forming sustainable relationships between natural, economic, and social factors in the development of society. Primarily, these relationships relate to the natural impacts of weather and climate on the variability of the hydrological cycle. Secondary relationships exist between providers and consumers of the services. Services provided by operators of public water supply and sewerage systems are a specific segment of water services. Their sustainability is controlled on the one hand by public regulation and and on the other by a combination of economic, social, and environmental objectives and the means by which they are achieved. The aim of this paper is, based on the parameters of supply and demand, to quantify the most important aspects of sustainable management of water supply and sanitation enterprises in connection with the current model for state regulation. The methodology is based on an examination of consumer behaviour indicators which can be interpreted from ‘water bills’. The comparison of household expenditure on water services in the Czech Republic shows that some are already approaching, and even exceeding, the limit of what is considered social acceptability.

scholarly journals Forest fires and their causes in the Czech Republic (1992–2004)

2013 ◽  
Vol 59 (No. 2) ◽  
pp. 41-53 ◽  
Author(s):  
E. Kula ◽  
Z. Jankovská
Keyword(s):  
Czech Republic ◽  
Forest Fires ◽  
Climatic Conditions ◽  
Limiting Factor ◽  
Burnt Area ◽  
The Czech Republic ◽  
Dominant Position ◽  
Railway Operation ◽  
Visit Number ◽  
Fire Origin

Forest fires under conditions of the Czech Republic are evaluated from the aspect of their frequency of occurrence in 1992&ndash;2004 at a level of particular years, seasons, days and daytime, and causes of their origin. They are confronted with a situation in the CR in 1974&ndash;1983. Effects of climatic conditions are a limiting factor not only for the frequency of their origin but also for the size of the burnt area. Spring (April) and summer (August) culminations were balanced. The burnt area of the best part of forest fires (88.9%) was &lt; 1 ha. The increased frequency of forest fires was noted in afternoon hours and during weekends. Areas threatened by fires are characterized by the increased visit number. In the spectrum of causes, a dominant position is taken up by fire raising, smoking and management in the forest.&nbsp; Railway operation and lightning represent minority causes of the origin of forest fires. In the course of the year, the structure of forest fire origin changes depending on activities in the forest and visit number. &nbsp;

scholarly journals Vulnerability of water source selected for emergency water supply in the Czech Republic

2012 ◽  
Author(s):  
E. Bakoš ◽  
F. Božek ◽  
A. Bumbová ◽  
J. Dvořák ◽  
M. Čáslavský
Keyword(s):  
Czech Republic ◽  
Water Supply ◽  
Water Source ◽  
The Czech Republic ◽  
Emergency Water Supply

scholarly journals Potential of typical highland and mountain forests in the Czech Republic for climate-smart forestry: ecosystem-scale drought responses

2021 ◽  
pp. 1-10
Author(s):  
Georg Jocher ◽  
Natalia Kowalska ◽  
Manuel Acosta ◽  
Jan Krejza ◽  
Irena Marková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Water Supply ◽  
Global Climate ◽  
Supply And Demand ◽  
European Beech ◽  
Climatic Conditions ◽  
Carbon Exchange ◽  
Mountain Forests ◽  
The Czech Republic ◽  
The Impact

Climate-smart forestry (CSF) consists of an extensive framework of actions directed to mitigating and adapting to global climate change impacts on the resilience and productivity of forest ecosystems. This study investigates the impact of the pan-European 2018 drought on carbon exchange dynamics in typical highland and mountain forests in the Czech Republic, including two coniferous stands (Norway spruce at Bílý Kříž and Rajec) and one deciduous stand (European beech at Štítná). Our results show that the annual net ecosystem CO2 uptake at Rajec decreased by 50% during the drought year in comparison to a reference year with normal climatic conditions. The Bílý Kříž stand is less affected by drought, as the local microclimate ensures sufficient water supply. The European beech forest at Štítná is most resilient against drought and its negative impacts — there we detect no differences in carbon exchange dynamics between the drought year and the reference year. We consider the matching of tree species to site conditions as crucial in the context of CSF, specifically regarding the stand response to water limitation and water supply and demand. Successively replacing spruce with beech trees in areas with high water demand but limited water supply, like Rajec, will support the goals of CSF.

Potential of typical highland and mountain forests in the Czech Republic for climate-smart forestry: ecosystem-scale drought responses

2021 ◽  
Author(s):  
Georg Jocher ◽  
Natalia Kowalska ◽  
Manuel Acosta ◽  
Jan Krejza ◽  
Irena Marková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Water Supply ◽  
Global Climate ◽  
Supply And Demand ◽  
European Beech ◽  
Climatic Conditions ◽  
Carbon Exchange ◽  
Mountain Forests ◽  
The Czech Republic ◽  
The Impact

&lt;p&gt;Climate-smart forestry (CSF) consists of an extensive framework of actions directed to mitigating and adapting to global climate change impacts on the resilience and productivity of forest ecosystems. This study investigates the impact of the pan-European 2018 drought on carbon exchange dynamics in typical highland and mountain forests in the Czech Republic, including two coniferous (Norway spruce at B&amp;#237;l&amp;#253; K&amp;#345;&amp;#237;&amp;#382; and Rajec) and one deciduous (European beech at &amp;#352;t&amp;#237;tn&amp;#225;) stand. Our results show annual net ecosystem CO&lt;sub&gt;2&lt;/sub&gt; uptake at Rajec to be reduced by 50% during the drought year in comparison to a reference year with normal climatic conditions. B&amp;#237;l&amp;#253; K&amp;#345;&amp;#237;&amp;#382; is less affected by drought, as the local microclimate ensures sufficient water supply. The European beech forest at &amp;#352;t&amp;#237;tn&amp;#225; is most resilient against drought and its negative impacts: there we detect no differences in carbon exchange dynamics between the drought year and the reference year. We consider the matching of tree species to site conditions as crucial in the context of CSF, specifically regarding the stand response to water limitation and water supply and demand. Successively replacing spruce with beech trees in areas with high water demand but limited water supply, like Rajec, will support the goals of CSF.&lt;/p&gt;

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