scholarly journals  Expected impacts of climate change on forests: Czech Republic as a case study

2011 ◽  
Vol 57 (No. 10) ◽  
pp. 422-431 ◽  
Author(s):  
T. Hlásny ◽  
J. Holuša ◽  
ŠtěpánekP ◽  
TurčániM ◽  
SitkováZ ◽  
...  

  We provide fundamental information about the future development of selected climate elements in relation to anticipated threat to forests in the Czech Republic. All analyses were carried out in relation to four elevation zones with specific potential forest vegetation – up to 350 m a.s.l. (oak dominance), 350–600 m a.s.l. (beech dominance), 600–900 m a.s.l. (beech-fir dominance), 900–1,100 m a.s.l. (spruce dominance). We found out that while the projected increase in mean annual air temperature is almost constant over the Czech Republic (+3.25–3.5°C in the distant future), the frequency of heat spells at lower elevations is expected to increase dramatically compared to higher elevations. The precipitation totals during the vegetation season are projected to increase in the near future by up to 10% and to decrease in the distant future by up to 10% over all vegetation zones. In general, drought is presumed to become a key limiting factor at lower elevations, while increased temperature along with the prolonged vegetation season at higher elevations can be beneficial to forest vegetation. Consequently, northward progression of forest tree species and retraction of the species lower distribution range are a generic response pattern. Such impacts are presumed to be accompanied by changes in the distribution and population dynamics of pests and pathogens. Mainly the impacts on two key forest pests, Ips typographus and Lymantria dispar, are discussed.  

2011 ◽  
Vol 57 (No. 6) ◽  
pp. 242-249 ◽  
Author(s):  
T. Hlásny ◽  
L. Zajíčková ◽  
M. Turčáni ◽  
J. Holuša ◽  
Z. Sitková

Climate change is expected to influence the distribution and population dynamics of many insect pests, with potential severe impacts on forests. Spruce bark beetle Ips typographus (L.) (Col.: Curculionidae, Scolytinae) is the most important forest insect pest in Europe whose development is strictly regulated by air temperature. Therefore, climate change is anticipated to induce changes in the pest's distribution and development. We used the PHENIPS model to evaluate climate change impacts on the distribution and voltinism of spruce bark beetle in the Czech Republic. Two future time periods – 2025–2050 (near future) and 2075–2100 (distant future) – are addressed. The period 1961–1990 is used as the reference. We found that while a two-generation regime dominated in the Czech Republic in the reference period, significant three-generation regime regions are projected to appear in the near future. In the distant future, the three-generation regime can be expected to occur over all existing coniferous stands in the Czech Republic. The analysis of altitudinal shift of n-generation regime regions indicates noticeable expansion of Ips typographus development to higher elevations, leading for example to disappearance of one-generation regime regions in the distant future. Uncertainties and limitations of the presented findings are discussed as well.


Information ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 120
Author(s):  
Majid Ziaei Nafchi ◽  
Hana Mohelská

The emergence of the fourth industrial revolution (Industry 4.0, hereinafter I 4.0) has led to an entirely fresh approach to production, helping to enhance the key industrial processes and therefore increase the growth of labor productivity and competitiveness. Simultaneously, I 4.0 compels changes in the organization of work and influences the lives of employees. The paper intends to construct a model for predicting the allocation of human resources in the sectors of the national economy of the Czech Republic in connection with I 4.0. The model used in this research visualizes the shift of labor in the economic sectors of the Czech Republic from the year 2013 to the following years in the near future. The main contribution of this article is to show the growth of employment in the high-tech services sector, which will have an ascending trend.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Michal Plaček ◽  
David Špaček ◽  
František Ochrana

PurposeThis paper discusses the role of public leadership and the strategic response of local governments to the external shock caused by the COVID-19 pandemic. The authors examine the typical Czech response with regard to how the leadership of municipalities in the Czech Republic responded to this extremely negative external stimulus.Design/methodology/approachThe authors use qualitative research methods for this investigation. They have chosen the case study method (see Yin, 2009; Stake, 1995; Klonoski, 2013). The general case is the Czech Republic. Mini-cases consist of municipalities from the Znojmo region, municipalities of the Central Bohemian region and the municipal districts in the capital city of Prague. Furthermore, the method of participant observation was used.FindingsThe authors’ analysis of the problem of local government responses to the pandemic crisis shows that municipal leaders responded with a variety of (non-)adaptation strategies. It appears that certain framework factors influenced the various local governments' behavior.Originality/valueThe article examines the strategic behavior of Czech municipal leaders regarding the pandemic crisis based on the observation of the reactions of local governments in the Czech Republic to the pandemic crisis and strives to define their basic strategies.


2021 ◽  
Vol 29 (3) ◽  
pp. 184-201
Author(s):  
Jindřich Frajer ◽  
Jana Kremlová ◽  
David Fiedor ◽  
Renata Pavelková ◽  
Miroslav Trnka

Abstract Historical maps are a valuable resource in landscape research. The information gathered from them facilitates the cognisance of landscapes and may assist current landscape planning. This study focuses on the historical occurrence and spatial extent of man-made ponds in the Czech Republic. Based on the 1st Military Survey maps (1764–1783) of the Habsburg Monarchy, we use Historical GIS to identify 7,676 man-made ponds in the historical landscape. Compared to the 2nd Military Survey maps (1836–1852), 56% of these man-made ponds had been drained. Such disappearances mostly affected large ponds in fertile agricultural areas, but also affected small reservoirs in less fertile areas at higher altitudes. As the current maps and spatial datasets (Water reservoirs, Landscape water regime, Farming areas) show, a number of these agricultural regions have been affected by climate changes and face water shortages. The historical map information of former ponds has the potential to contribute to their restoration in areas where water retention in the landscape needs to be increased.


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