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Juniper pastures in the Wallachia area and predictors of their preservation
Mizera, Ondřej ; Křenová, Zdeňka (advisor) ; Mudrák, Ondřej (referee)
Common juniper (Juniperus communis), as a species of predominantly open habitats, used to be part of semi-natural grassland communities, such a pastures. In the area of Moravian Wallachia (eastern part of the Czech Republic) this type of grassland is known as juniper pasture, however as in the whole of Europe, it is a type of habitat that is disappearing rapidly from the landscape, among other reasons due to the absence of juveniles in the population. A total of 20 potentially preserved juniper pastures were identified within nine cadastral areas in the Moravian Wallachia (Beskydy Protected Landscape Area) and visited during the vegetation period. The total number of J. communis individuals was recorded, including their dendrometric (crown height and radius) and descriptive characteristics (sex, vitality, developmental stage, sociability, form). Characteristics of vegetation cover and type of site management were also recorded to define the main factors influencing the vitality and proportion of juvenile individuals in the population of J. communis. Field research was supplemented by analyses of orthophotos and topographical data processed in a GIS environment. In total 2,896 juniper were recorded at 20 locations, while the population of J. communis in the area of interest can be characterized by...
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Wallachian pastures: condition, preservation and conservation potential
Mizera, Ondřej ; Křenová, Zdeňka (advisor) ; Kindlmann, Pavel (referee)
For centuries, pastures were an important part of the European landscape. Grazing was widespread in the Moravian Wallachia region, where a unique grazing landscape was created. The aim of this thesis is to clarify which pastures were preserved to this day in eleven cadastral areas of the Rožnovská Bečva River valley and evaluates their importance for nature conservation. For this purpose, imprints of historical maps of Stable Cadastre for half of the 19th century were used and a vector layer of former pastures was created. In the ArcGIS Pro program, this vector layer of pastures was compared with the NATURA 2000 habitat mapping layer, the consolidated ecosystem layer (KVES), the zonation of the Beskydy Protected Landscape Area and the network of small-scale protected areas. The current state of former pastures was examined and land used changes between common and private pastures were compared. It was found that a high proportion of historic pastures has disappeared. The main reason for the disappearance is artificial afforestation; other pastures were abandoned and overgrown spontaneously. Some historical pastures, more often common pastures located near the settlements, were built up. The pastures preserved so far are very valuable for conservation and are an important component of the local...
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