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Approaches to abandoned quarry reclamation
Müller, Tomáš ; Kuťáková, Eliška (advisor) ; Veselý, Adam (referee)
The disruption of open landscape goes in hand with mining operations. Continuous growth of such disturbed areas, both in numbers and coverage, puts ever increasing pressure on attempts of their reintegration back to the landscape. Different methods and approaches that allow this exist, commonly related to as reclamation. The two main ones are technical reclamation and ecological restoration. This thesis will: 1) introduce individual steps required to be taken in an abandoned quarry in order, to achieve previously defined goals, 2) compare individual methods that are in use today, and 3) explore the potential of abandoned quarries in the context of open landscape. Keywords: reclamation, abandoned quarries, limestone, restoration ecology, succession
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Primary Succession - study methods and pollen analysis opportunities
Suk, Pavel ; Abraham, Vojtěch (advisor) ; Prach, Jindřich (referee)
This thesis focuses on the main study methods of primary succession. It compares their advantages and disadvantages, the scales of usage and the outputs they bring. Due to the duration of a succession development (in hundreds of years), indirect approach - space-for- time substitution using chronosequences (sites that differ only in age and make up succession series) is often used instead of direct study methods. Breach of the the critical assumption that all sites follow the same trajectory may lead to false conclusions about the successional development. This thesis presents examples showing this problem, ways to prevent it and offers an alternative method - pollen analysis. Pollen analysis is on average used for larger spatial and temporal scales but partially overlaps scales of space-for-time substitution. The thesis presents biases of pollen analysis and ways how to solve/limit them and introduces abandoned, partially flooded quarries as a suitable environment for the use of this method to study succession inferred from rapidly growing limnic sediment.
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