This thesis is focused on natural elements in the microregion Bechynsko,it describes and localizes geohazards (ecological hazards) and natural risks, It designs solutions for elimination of this problems. Designed management of this area leads to sustainable development and it is outlined on the basis of the own SWOT anylyze. In the end of my work I prepared sample case studies which are focused on special geohazards and natural risks and I suggest suitable landscape management and its recultivation.

Resumo: Objetivo: O objetivo geral deste trabalho consiste em realizar um estudo comparativo dos impactos ambientais em sistemas intensivo, extensivo, orgânico da produção de bovinos de corte no Brasil Central a partir da ferramenta de Análise do Ciclo de Vida (ACV). Metodologia/Procedimentos de Pesquisa: A pesquisa classifica-se como de abordagem quantitativa, utilizando de ferramentas padronizadas, e baseada em cálculos mediante planilha eletrônica. Quanto à sua natureza pode ser descrita como de natureza aplicada, com objetivos definidos que remetem à pesquisa exploratória e descritiva. O procedimento aplicado foi de pesquisa de referencial bibliográfico e posterior aplicação em cenários prototípicos. A ACV segue as normas preconizadas pela ISO 14040 e os cálculos através das equações propostas, pelo IPCC, sendo posteriormente calculados em planilha eletrônica. Resultados e Discussões: Mensurar os impactos ambientais nos diferentes sistemas produtivos da bovinocultura: extensivo, intensivo e orgânico, quantificando os gases do GEE e uso da terra mediante os resultados alcançados, e verificar quais dos sistemas é o menos impactante ao meio ambiente, em termos de produtividade comparativamente. Implicações Gerenciais: Os resultados a serem obtidos com a pesquisa podem auxiliar na tomada de decisão no processo de escolha do sistema a ser escolhido levando em consideração o aspecto da gestão ambiental, e possíveis diretrizes e normas futuras com relação a leis ambientais que possam at... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Purpose: The general objective of this work is to perform a comparative study of environmental impacts in intensive, extensive, organic systems using the Life Cycle Analysis (LCA) tool. Design/methodology: The research is classified as a quantitative approach, using standardized tools, and based on spreadsheet calculations. Its nature can be described as applied nature, with defined objectives that refer to the exploratory and descriptive research. The procedure applied was to search for bibliographic references and later to place them in prototypical scenarios. The ACV follows the standards recommended by ISO 14040 and the quantum application of the proposed formulas, by the IPCC, and are then calculated in a spreadsheet. Findings and Discussions: Measure the environmental impacts in the different productive systems of cattle breeding: extensive, intensive and organic, quantifying GHG and land use using the results achieved, and verify which of the systems is the least impacting the environment in terms of productivity comparatively. Management Implication: The results to be obtained with the research can help in decision to making in the process of choosing the system to be chosen taking into consideration the aspect of environmental management, and possible future guidelines and norms regarding environmental laws that can reach the sector. Conclusion and Research limitations: The organic production system of cattle results in a lower environmental impact considering the ca... (Complete abstract click electronic access below) / Mestre

This diploma thesis deals with the change of the landscape cover and the use of the landscape of the former Ralsko military training area after 1990. The former VVP Ralsko is located on the area of 250 km2 between Česká Lípa, Stráží pod Ralskem and Mnichovo Hradištěm. Most of its territory lies in the Liberec region and only its southern part reaches the Central Bohemian region. After the departure of the Soviet troops in 1991, the military training area was abolished and on 1 January 1992 the village of Ralsko, which currently has 171 km2 , was formed by merging nine municipalities in its former territory. The town of Ralsko is thus an area with the largest area in the Czech Republic. Between 1993 and 2004, the former military area was decontaminated, during which more than 120,000 pieces of ammunition were found and destroyed. Decontamination of contaminated soils and groundwater is ongoing. Some former military buildings are currently commercially used as warehouses for raw materials. The Military Airport at Hradčany is partly used for sports purposes, and a range of rare game species has been set up in the area of the Židlov tank space, of which the most interesting is the European Tooth (Bison bonasus). In the first part of the thesis there is a search of specialized literature dealing with...