Mayflies (Ephemeroptera) as indicators of environmental changes in the past five decades: a case study from the Morava and Odra River Basins (Czech Republic)

2014 ◽  
Vol 25 (5) ◽  
pp. 622-638 ◽  
Author(s):  
Blanka Zedková ◽  
Vanda Rádková ◽  
Jindřiška Bojková ◽  
Tomáš Soldán ◽  
Světlana Zahrádková
Keyword(s):  
Czech Republic ◽  
Environmental Changes ◽  
River Basins ◽  
The Past ◽  
Odra River

scholarly journals Perception of Regional Identity – Case Study of River Basins of the Morava River (Slovakia, Czech Republic)

2019 ◽  
Vol 67 (1) ◽  
pp. 133-145
Author(s):  
Dagmar Petríková ◽  
Matej Jaššo
Keyword(s):  
Czech Republic ◽  
Competitive Advantage ◽  
Regional Identity ◽  
River Basins ◽  
Future Perspectives ◽  
European Regions ◽  
Morava River ◽  
Identity Perception

New role of the European regions within the processes of cooperation and competition highlighted their need for unique, highly profiled and strategically managed regional identity. Regional identity is one of the most important assets of any region and might serve as invaluable competitive advantage. Regional identity, its sources, background and consequences for regional development are the main focus of this contribution. Need for unique, original and plausible profile of each region, aspiring to be successful in the process of regional competition has been confirmed to be utterly urgent. Struggling for competitive advantage of the particular region is based on the strategic managerial approach toward city/regional identity. The article refers to the survey of regional identity in the river basins of the Morava river in both the Slovak and the Czech parts of the river basins covering the results of perception of various elements of regional identity: perception of landscape and river, relations to living spaces, values and image, river identity and identification with territory, recent societal development and future perspectives.

scholarly journals Economic impacts of farmland degradation in the Czech Republic – Case Study

2019 ◽  
Vol 65 (No. 11) ◽  
pp. 529-538
Author(s):  
Jana Podhrázská ◽  
Jan Szturc ◽  
Petr Karásek ◽  
Josef Kučera ◽  
Jana Konečná
Keyword(s):  
Czech Republic ◽  
Soil Erosion ◽  
Detailed Analysis ◽  
Agricultural Land ◽  
Soil Characteristics ◽  
Water Erosion ◽  
The Czech Republic ◽  
The Past ◽  
South Moravia

To analyse the potential changes in soil characteristics and associated impacts on the land price, the region of South Moravia was selected, strongly threatened by erosion and by claiming the most valuable land in suburban territories due to industrial and housing expansion. For the detailed analysis of the impacts of erosion and land appropriation in the region of South Moravia, the model territories of Brno surroundings with the municipality of Dolní Heršpice and Hustopeče surroundings with the municipality of Starovice were selected. The price of land degraded by potential erosion in the South Moravian region fluctuates between 88 and 2 400 EUR/ha. In the past 180 years, 148 ha of agricultural land in the total value of 822 815 EUR have been used for construction in the location under study in Dolní Heršpice. Further growth of the municipality should involve additional appropriation of agricultural land in the value of 411 000 EUR. In the studied land block of 100.5 ha, located in the Starovice municipality area, water erosion caused degradation in the total value of 92 000 EUR in the period 1978–2013. Extensive losses of fertile agricultural land are to be expected in the future. Their main causes are continuing land appropriation and degradation processes – soil erosion.

scholarly journals Hydrogeochemical evolution under a changing environment: a case study in Jilin, China

2020 ◽  
Vol 20 (5) ◽  
pp. 1653-1663
Author(s):  
Mingqian Li ◽  
Changlai Xiao ◽  
Xiujuan Liang ◽  
Yuqing Cao ◽  
Shuya Hu
Keyword(s):  
Environmental Changes ◽  
Water Cycle ◽  
Changing Environment ◽  
Groundwater Exploitation ◽  
The Past ◽  
Global Water Cycle ◽  
Global Environmental ◽  
Global Environmental Changes ◽  
Hydrochemical Types

Abstract Groundwater is an important component of the global water cycle, and acts as a receptor and information carrier of global environmental changes. Therefore, it is of great importance to research the chemical evolution of groundwater under a changing environment. Historical data shows that groundwater hydrochemical types are becoming more complicated, groundwater quality is deteriorating and the scope of pollution is expanding. This is attributed to an increasingly dry climate and the gradual deterioration of the original ecological environment, together with the unreasonable groundwater exploitation and intense agricultural activities of the past 30 years. Climate change and human activities are intertwined, and are responsible for changing the original groundwater system and forming a new evolutionary system.

Barriers to Strategic Changes in Organizations: A Case Study

1990 ◽  
Vol 15 (1) ◽  
pp. 37-46
Author(s):  
S Manikutty
Keyword(s):  
Structural Changes ◽  
Environmental Changes ◽  
Past History ◽  
Strategic Responses ◽  
Business Policy ◽  
The Past ◽  
The Social ◽  
Strategic Changes ◽  
Analytical Response

Normative business policy literature assumes a rational-analytical response of organizations to environmental changes. Through a case study of an organization that faced structural changes in its environment and viewing it through cognitive and sociological perspectives in addition to the rational perspective, certain fundamental barriers to strategic changes are identified. These are: prevalence of strong and dominant values in the organization, inability to see threats from the environment when they go against the prevalent beliefs of the key members, the past history, and the social system of the organization. How managers can overcome or minimize the effect of these barriers so that they can make quicker and better strategic responses is also discussed.

Applying paleolimnological techniques in estuaries: a cautionary case study from Moreton Bay, Australia

2010 ◽  
Vol 61 (9) ◽  
pp. 1039 ◽  
Author(s):  
Brendan Logan ◽  
Kathryn H. Taffs ◽  
Laura Cunningham
Keyword(s):  
Environmental Changes ◽  
High Salinity ◽  
Dynamic Nature ◽  
Future Studies ◽  
Moreton Bay ◽  
The Past ◽  
Unsupported 210Pb ◽  
Environmental Histories ◽  
Different Sources

Paleoecological techniques are useful tools to identify restoration targets and natural variability for natural resource management programs. However, despite recent advances, caution is required when employing paleoecological techniques in estuaries, due to their dynamic nature relative to lake environments where these techniques were pioneered. This study used a novel combination of chronological, diatom, geochemical and isotopic data to assess the effectiveness of using these techniques in estuaries, and to develop an understanding of environmental changes within Moreton Bay, an open estuarine environment in subtropical east Australia. Results indicated mixed success, with 210Pb results indicating only background unsupported 210Pb levels, 14C results indicating sediment deposition from mixed sources, no diatom preservation and inconsistencies between geochemical and isotope proxies. Evidence did exist that the Moreton Bay sediments have been derived from different sources over the past 10 000 years. However, isotope records were not able to identify the likely sources of these sediments. Problems with diatom preservation were most probably due to the high salinity and temperatures associated with subtropical open embayment estuaries. Future studies attempting to identify environmental histories of estuaries should incorporate river-influenced locations rather than marine-dominated sites to ensure better diatom preservation and more definitive geochemical signals.

From hard to soft: theory and Neolithic studies in Scotland

2011 ◽  
Vol 33 (1-2) ◽  
pp. 7-19
Author(s):  
Kenneth Brophy
Keyword(s):  
The Past

The Scottish Theoretical Archaeology Group (STAG) conference organisers expressed some doubts about how far theory has changed, and impacted, archaeological establishment and academia in Scotland. In this paper, I will argue that Scotland is certainly not isolated in a theoretical sense, although in the past, Scottish archaeology could be accused of being theoretically conservative, or at least dependent on ideas and models developed elsewhere. A case-study looking at Neolithic studies will be used to illustrate that despite some recent critical historiographies of the study of the period in Scotland, archaeologists in Scotland and those working with Scottish material have been theoretically innovative and in step with wider paradigm changes. The study of the Neolithic in Scotland, it could be argued, has been shaped by theory more than the study of any other period; we are not isolated, but rather part of wider networks of discourse.

THE URBAN MIGRANT FUTURE DESIRE: A STUDY OF REVERSE MIGRATION IN MALAYSIA

2017 ◽  
Vol 3 (2) ◽  
pp. 177
Author(s):  
Nur Huzeima Mohd Hussain ◽  
Hugh Byrd ◽  
Nur Azfahani Ahmad
Keyword(s):  
Oil And Gas ◽  
Industrial Society ◽  
Peak Oil ◽  
Population Mobility ◽  
Reverse Migration ◽  
The Past ◽  
Urban Migrants ◽  
Urban Migrant ◽  
Oil Crisis

Globalisation combined with resources of oil and gas has led to an industrial society in Malaysia.  For the past 30 years, rapid urban growth has shifted from 73% rural to 73% urban population. However, the peak oil crisis and economic issues are threatening the growth of urbanisation and influencing the trends of population mobility. This paper documents the beginnings of a reverse migration (urban-to-rural) in Malaysia.  The method adopted case study that involves questionnaires with the urban migrants to establish the desires, definite intentions and reasons for future migration. Based on this data, it predicts a trend and rate of reverse migration in Malaysia. 

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