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Dynamics of surface water quality changes in model headwater areas of the Czech Republic
Fraindová, K. ; Matoušková, M. ; Kliment, Z. ; Vlček, Lukáš ; Vlach, V. ; Šajnarová, L.
River headwaters have a high environmental value. Unfortunately, the biogeochemical processes in headwaters in context of different rainfall-runoff conditions and specific land cover have not been fully examined. This study focuses on changes in correlations of 16 biogeochemical parameters related to different types of rainfall-runoff events and land cover condition for eight headwater catchments in Central Europe. Multiple methods as linear regression, Spearman rank correlation, Principal Components Analysis and C/Q hysteresis loops revealed main relationships. Presence of peatlands and waterlogged spruce forests had decisive influence on the biogeochemistry (mainly for CODMn, humins, Fe, P-PO43− TP, and N-NO3−). The strongest positive correlation of organic matter (CODMn) and Fe is represented in a catchment with the largest area of damaged forest (70%), but with a smaller proportion of wetlands (8%). High flow rates influence the release of greater amounts of organic matter and N-NO3−.
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UAV monitoring of montane peatbogs
Kevešová, Adriana ; Langhammer, Jakub (advisor) ; Lendzioch, Theodora (referee)
This thesis deals with UAV imagery analysis as used to monitor environmental settings, in this case a particularly sensitive ecosystem of a peatbog. The non-destructive aspect of UAV monitoring based on remote access to the studied area is crucial in this scenario. Introduction to the topic, examples of the employment of UAV technologies and the possibilities of their application in monitoring peatbogs are followed by examples of visual data analysis with the help of various software on the multispectral data acquired at peatbog Rokytka in the Šumava National Park. Key words: UAV, monitoring, peatbogs, remote sensing, multispectral imaging, classification
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Impact of bogs on local climate - Červené blato, Klenová
ŠKARDA, Jakub
The diploma thesis analyses the impact of the presence of peat bogs on the local climate, especially on temperature, humidity regime and energetic balance. Date were collected on 2 comparable observation pots: Červené blato bog, Klenová bog. As a contrasting terrestric non-wetland ecosystem was chosen permanent grassland (TTP) in Malíkov nad Nežárkou village, in district of Jindřichův Hradec. The date were collected every hour using datalogger. During vegetation season a sample of plant biomass was taken. The expected results of the impact of bogs on climate has been proven on Červené blato bog. Klenová bog show unexpected figures collected in the altitude of 2 metres. It shows the lowest average humidity and the highest average day temperature of all observation spots. TTP show unexpected figures in the altitude of 2 meter which has been most likely caused by the presence of 2 ponds and spring.
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The peat quality and vegetation composition depending on land use
LEŠTINOVÁ, Iveta
Borkovická blata (moors) represent the largen bog in Třeboň Basin Area. Previously, there was mined pea tuntil 1979. The best preserved part of the moors was declared aprotected area in 1980. The mining impacted not only them so their immediate surroundings and landscape use. The work deals with the management of the surrounding areas, and how it may affect the quality of peatand its vegetation cover in nature reserve Borkovická blata. Fieldwork consisted of two parts: the first collection of peat and its chemical analysis (conducted in 20102011); second relevés with the development of land use surrounding areas (fieldwork was carried out from July to October 2014). On the moor were selected four phytocenological sites on the size of 5x5 m, on which were carried out sampling and survey. Selected sites showed at first glance significant differences by way of former use.
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