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Monitoring invazních a nepůvodních rostlin v povodí řeky Ostravice
Zlá, Kristýna
Spreading of invasive plants on catchment area of the Ostravice river has been monitored from fall 2013 to fall 2014. During the study period, 24 phytocenological images for 6 areas was obtained. The results were extended with data from the Czech National Phytosociological Database and comparative study of the spreading was performed for separate parts of the catchment area. In 211 phytosociological images analyzed in total, I have found 63 non-native species from which 23 was invasive. The most common invasive species was the Himalayan balsam (Impatiens glandulifera), Small balsam (Impatiens parviflora), the knotweed (Reynoutria spp.) and the Solidago canadensis (Solidago canadensis). Number of invasive species increased with decreasing altitude. River flow control and urbanization of nearby areas also had positive effects on the spreading. The study also revealed that occurrence of individual invasive species in coastal areas was different than their occurrence in more distant areas from the river basin.
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Monitoring of invasive plant species in cadastral area Římov
PETROVIČOVÁ, Ivana
This thesis monitors the occurence of selected alien species of decidious woody plant (Aesculus hippocastanum, Juglans regia, Parthenocissus quinquefolia, Quercus rubra, Symphoricarpos albus, Rhus hirta, Robinia pseudoacacia) in cadastral municipality Římov. The result is maps with a plotted occurence of the interest species in the territory. The frequency (or area) of species, fertility and higher were detected also. Robinia pseudoacaci is the most widespread alien species in this territory, Juglans regia is also abundant in this location.
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Influence of environmental variables for invasive plants spread in PLA Kokořínsko
Heřmanová, Lucie ; Pěknicová, Jana (advisor) ; Markéta, Markéta (referee)
Bachelor's dissertation is orientated towards issue of presence of invasive plants. In chosen part of PLA Kokořínsko proceeded mapping of current extension of chosen invasive kinds of goldenrod (Solidago) and knotweed (Reynoutria). The goal of this bachelor's dissertation was mapping of affected invasive plants and consecutive evaluation of results, when there was investigated, which biotope affected kinds colonize. As complementary analysis there was investigated preference of type of soil of individual kinds. Most often there was affected S. canadensis, which also covered the biggest area. From final survey resulted which biotopes and ecosystems the invasive plants mostly invade. From the data is also possible to see that invasive weeds colonize most frequently man-made affected habitats and brown soil is preferred kind of soil.
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Monitoring invazních a nepůvodních rostlin v povodí řeky Ostravice
Zlá, Kristýna
Spreading of invasive plants on catchment area of the Ostravice river has been monitored from fall 2013 to fall 2014. During the study period, 24 phytocenological images for 6 areas was obtained. The results were extended with data from the Czech National Phytosociological Database and comparative study of the spreading was performed for separate parts of the catchment area. In 211 phytosociological images analyzed in total, I have found 63 non-native species from which 23 was invasive. The most common invasive species was the Himalayan balsam (Impatiens glandulifera), Small balsam (Impatiens parviflora), the knotweed (Reynoutria spp.) and the Solidago canadensis (Solidago canadensis). Number of invasive species increased with decreasing altitude. River flow control and urbanization of nearby areas also had positive effects on the spreading. The study also revealed that occurrence of individual invasive species in coastal areas was different than their occurrence in more distant areas from the river basin.
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