Sucho z pohledu ohrožení cenných ekosystémů

The thesis deals with the topic of drought in the context of threats to valuable ecosystems. In the first part are processed different conceptions of drought with respect to its causes and consequences. This part also contains other theoretical bases of this issue. There are solved definitions, species, evaluations, causes and effects of drought, where are discussed in detail the effects of drought on the biota of flowing water. In the first part is also lay out the space for the analysis of the risk of drought to valuable ecosystems. There are also presented and evaluated legislative instrument on drought issues from the perspective of nature and landscape protection and defined the major conflicts of interest in the protection from its effects. The result of the practical part of the work is demarcation of protected locations in the Czech Republic including an outlook to the year 2100. To create the desired result was used ArcGIS program and the results are therefore presented in the form of maps with accompanying comments. The resulting maps of protected areas potentially threatened by drought could serve as a professional basis for further work dealing with this issue