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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
How the plants influence our atmosphere - project based education for the basic school
 JANEBOVÁ, Klára
The aim of my theses was to create an educational project for students of elementary schools on the topic of how plants affect our atmosphere. The suggested project base on the project teaching comprises of four issues: reducing the heat with vegetation, isopreniods and atmosphere, dust particles and vegetation, and carbon dioxide - vegetation - atmosphere. The project was verified in lessons of three elementary schools in South Bohemia with a hundred students of 9th class within the time period of March and April 2023. Teaching of botany at elementary schools focuses mainly on photosynthesis and morphology of plants; little attention is paid to the relation between plants and the atmosphere. The project is designed to demonstrate some areas of the relation plants-atmosphere, and to reveal the importance of vegetation for human beings. The effectivity of the educational project was verified in didactic survey. A pre-test was conducted before the activity itself and a post-test followed it with a one week delay. Collected data was then processed, evaluated and transformed into tables and charts. The data reveal that the suggested activity resulted in higher success rate in tests and increased the understanding of the effect of vegetation on the atmosphere.
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The Methane flux (CH4) from willow (Salilx sp.)
 JANEBOVÁ, Klára
The aim of the thesis was to study the methane flux (CH4) from crack willow (Salix fragilis) and bay willow (Salix pentandra) at the ecosystem station Wet Meadow by Třeboň (49°01 N; 14°46 E). The research was carried out in May 2016. Methane is one of the important greenhouse gases, which plants can emit into the atmosphere. Neither the fluxes of methane from willows nor the factors influencing them were so far sufficiently monitored. The thesis became a part of the whole year's monitoring of these fluxes, carried out by the Global Change Research Institute of the Czech Academy of Sciences, under the lead of expert consultant Dr. rer. nat. Mgr. Macháčová. The fluxes of CH4 were measured with the help of manual static chamber systems located in three height-levels and online portable laser gas analyser. The fluxes were processed, statistically evaluated and coherent tables and charts were created from the results. Based on these results we can conclude, that all examined trees have released CH4 and CO2 from their trunks, however no significant statistical difference between morning and afternoon fluxes was measured. S. fragilis was emitting higher amounts of CH4 and CO2 than S. pentandra. At the same time emissions dramatically decreased along with decreasing trunk height. Therefore the highest emissions were detected directly at the ground level. Moreover, the emissions of CH4 and CO2 were measured from the soil as well.
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2 Janebová, Karin
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