Calcium and strontium isotope dynamics in three polluted forest ecosystems of the Czech Republic, Central Europe

2020 ◽  
Vol 536 ◽  
pp. 119472 ◽  
Author(s):  
Martin Novak ◽  
Chris Holmden ◽  
Juraj Farkaš ◽  
Pavel Kram ◽  
Jakub Hruska ◽  
...  
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Forest Ecosystems ◽  
Strontium Isotope ◽  
The Czech Republic

Transitional Justice and Changing Memories of the Past in Central Europe

2013 ◽  
Vol 50 (1) ◽  
pp. 24-44
Author(s):  
Roman David
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Transitional Justice ◽  
The Czech Republic ◽  
Divided Societies ◽  
The Past ◽  
The Impact

Memories of wrongdoings are often viewed as an obstacle to reconciliation in divided societies. Is it due to the past or the present politics of the past? To examine the dilemma of essentialism versus presentism, this article investigates the impact of transitional justice on memories of wrongdoing. It theorizes that using different transitional justice strategies to deal with the same wrongdoing shapes memories in different ways. The theory is tested via vignette-based surveys in the Czech Republic, Hungary and Poland, which adopted distinct lustration laws. The results show that wrongdoing is viewed through lustration laws, reflecting present power constellations, not history.

scholarly journals The impact of the air temperature on measuring the zenith angle during the year in the ground layer of the atmosphere for the needs of engineering surveying

2021 ◽  
Vol 61 (3) ◽  
pp. 476-488
Author(s):  
Tomáš Suk ◽  
Martin Štroner
Keyword(s):  
Czech Republic ◽  
Numerical Model ◽  
Central Europe ◽  
Air Temperature ◽  
Zenith Angle ◽  
Geographical Area ◽  
Temperature Gradients ◽  
The Czech Republic ◽  
Different Seasons ◽  
The Impact

This paper presents the results of over a year-long experiment dealing with a temperature measurement to calculate the theoretical effect of the atmosphere on the measured zenith angle in engineering surveying. The measurements were performed to determine the accurate and specific temperatures (temperature gradients), which can be recorded in different seasons in the low level of the atmosphere (up to 2 m above the ground, where most Engineering Surveying measurements take place) for the geographical area of Central Europe - specifically the Czech Republic. A numerical model was then applied to the resulting determined temperature gradients to calculate the path of the beam passing through an inhomogeneous atmosphere. From these values, the apparent vertical shifts caused by refraction in a given environment and time were finally determined.

scholarly journals A new specimen of Araucaria fricii from the early Coniacian of the Bohemian Massif, Central Europe

2021 ◽  
Vol 77 (2) ◽  
pp. 282-286
Author(s):  
Jiří Kvaček
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Bohemian Massif ◽  
Type Material ◽  
Massif Central ◽  
The Czech Republic ◽  
First Occurrence ◽  
Bohemian Cretaceous Basin ◽  
Cone Scale

A specimen of Araucaria fricii is described from the upper part of the Teplice Formation in the Bohemian Cretaceous Basin. It extends the first occurrence of A. fricii from the mid-Coniacian back to the early Coniacian. Found in the Radovesice locality near Kučlín in the northern part of the Czech Republic, it is characterised by a deltoid cone scale complex with a centrally placed seed. It is compared to the type material of A. fricii from the mid-Coniacian Březno Formation and other European Cretaceous species of Araucaria. The taphonomy and palaeoecology of A. fricii is briefly discussed.

scholarly journals Predicted climate change will increase the truffle cultivation potential in central Europe

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Tomáš Čejka ◽  
Miroslav Trnka ◽  
Paul J. Krusic ◽  
Ulrich Stobbe ◽  
Daniel Oliach ◽  
...  
Keyword(s):  
Climate Change ◽  
Czech Republic ◽  
Central Europe ◽  
Agricultural Land ◽  
Economic Benefits ◽  
The Czech Republic ◽  
Truffle Cultivation ◽  
Ecological Requirements ◽  
Wide Range ◽  
Future Warming

AbstractClimate change affects the distribution of many species, including Burgundy and Périgord truffles in central and southern Europe, respectively. The cultivation potential of these high-prized cash crops under future warming, however, remains highly uncertain. Here we perform a literature review to define the ecological requirements for the growth of both truffle species. This information is used to develop niche models, and to estimate their cultivation potential in the Czech Republic under current (2020) and future (2050) climate conditions. The Burgundy truffle is already highly suitable for cultivation on ~ 14% of agricultural land in the Czech Republic (8486 km2), whereas only ~ 8% of the warmest part of southern Moravia are currently characterised by a low suitability for Périgord truffles (6418 km2). Though rising temperatures under RCP8.5 will reduce the highly suitable cultivation areas by 7%, the 250 km2 (3%) expansion under low-emission scenarios will stimulate Burgundy truffles to benefit from future warming. Doubling the moderate and expanding the highly suitable land by 352 km2 in 2050, the overall cultivation potential for Périgord truffles will rise substantially. Our findings suggest that Burgundy and Périgord truffles could become important high-value crops for many regions in central Europe with alkaline soils. Although associated with uncertainty, long-term investments in truffle cultivation could generate a wide range of ecological and economic benefits.

Winter arsenic pollution in 10 forest ecosystems in the mountainous border regions of the Czech Republic

2020 ◽  
Author(s):  
Daniel A. Petrash ◽  
Martin Novák ◽  
Leona Bohdálková ◽  
Micheal Krachler ◽  
Jan Čuřík ◽  
...  
Keyword(s):  
Czech Republic ◽  
Forest Ecosystems ◽  
Arsenic Pollution ◽  
The Czech Republic ◽  
Border Regions

scholarly journals Norway spruce in forest ecosystems of the Czech Republic in relation to different forest site conditions

2011 ◽  
Vol 57 (No. 11) ◽  
pp. 514-522 ◽  
Author(s):  
V. Mansfeld
Keyword(s):  
Czech Republic ◽  
Norway Spruce ◽  
Forest Ecosystems ◽  
Biological Diversity ◽  
National Forest Inventory ◽  
Management Decision ◽  
Site Classification ◽  
Forest Site ◽  
The Czech Republic ◽  
Technical Discussion

The paper analyses the representation of Norway spruce (Picea abies [L.] Karst.) (hereinafter spruce) in relation to different conditions of forest sites. The analysis is based on data from the National Forest Inventory conducted in the Czech Republic in 2001-2004 (hereinafter NFI), stratified according to units of the Forest Site Classification System (Plíva 1971, 2000). Results of the analysis provide a structured image of the current share of spruce. The formerly published information on the natural share of spruce was corroborated and the recommended share of spruce in the target species composition of the spruce management system was analyzed. The analysis documents the applicability of NFI data in the technical discussion concerning the future form of forest ecosystems in the Czech Republic. The results can be used as the groundwork for concrete forest management decision-making and will contribute to the study of the biological diversity of forest ecosystems.

scholarly journals Sustainable management of mountain forests in the Czech Republic

2012 ◽  
Vol 50 (No. 11) ◽  
pp. 526-532 ◽  
Author(s):  
S. Vacek ◽  
V. Balcar
Keyword(s):  
Czech Republic ◽  
Forest Management ◽  
Forest Ecosystems ◽  
Sustainable Forest Management ◽  
Self Regulation ◽  
Raw Material ◽  
Anthropogenic Factors ◽  
Mountain Forests ◽  
Natural Forests ◽  
The Czech Republic

Forest management in the Czech Republic (CR) was not shaped in the environment of natural forests but in the territory that was influenced by unregulated felling and animal grazing for a long time. Hence the fear for sustainable and balanced benefits from forests endangered by long-term uncontrolled exploitation was legitimate. Almost after three centuries of application of the sustainability principle, forests are considered not only as a source of renewable wood raw material but also as a tool of the environment formation. Mountain forests are an important landscape component of this country. They are an object of specific importance from the aspect of natural environment conservation, stabilization of natural processes and general landscape homeostasis. In addition, they fulfil a number of production and non-production functions. Cardinal elements of sustainable forest management in the CR conditions are as follows: management of the forest as an ecosystem, i.e. transition from exclusive care of forest tree species and their stands to care of the whole forest ecosystems; restructuring (conversion, reconstruction) of damaged and declining forests; optimum (species, genetic, spatial, age) structure of forest ecosystems differentiated according to site conditions and management targets; differentiated transition from general management to group or individual methods; utilization and support of spontaneous processes such as natural regeneration, competition and other principles of self-regulation. The above cardinal elements of sustainable forest management are applicable to forests of the CR in general, but their importance considerably increases in mountain forests where many species survive on the margin of subsistence. Moreover, mountain forests of CR have been heavily destroyed by anthropogenic factors, especially air-pollution ecological stresses, during the last three or four decades.

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