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Development of selected invasive species and meadow vegetation classification algorithm in the Krkonoše Mountains using hyperspectral data
Jelének, Jan ; Kupková, Lucie (advisor) ; Halabuk, Andrej (referee)
Development of selected invasive species and meadow vegetation classification algorithm in the Krkonoše Mountains using hyperspectral data Abstract The thesis deals with utilization of airbone APEX hyperspectral image data for selected invasive species and meadow vegetation classification in the study area of the Krkonoše Mountains National Park. The mian goal of the thesis was to develop of classification algorithm based on proposed vegetation indices. The approach was based on the utilization of in-situ LAI, fAPAR, chlorophyll content data and analysis of their relation with vegetation spectral properties. The work also deals with several problems regarding LAI - vegetation indices relationship, namely saturation of LAI and mutual correlation of LAI and chlorophyll content. Tha classification was focued on invasive species Rumex alpinus and Lupinus polyphyllus, meadow vegetation with dominant Nardus stricta and dominant Trisetum flavescens and cutted lawns. Besides the proposed approach, the presented work resulted in several classification maps of study area and in spectral libraries, containing ground level spectra of studied invasive species, meadow vegetation types and several other meadow species. Keywords: hyperspectral image data, APEX, LAI, fAPAR, vegetation indices, invasive species, meadow...
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Development of selected invasive species and meadow vegetation classification algorithm in the Krkonoše Mountains using hyperspectral data
Jelének, Jan ; Kupková, Lucie (advisor) ; Halabuk, Andrej (referee)
Development of selected invasive species and meadow vegetation classification algorithm in the Krkonoše Mountains using hyperspectral data Abstract The thesis deals with utilization of airbone APEX hyperspectral image data for selected invasive species and meadow vegetation classification in the study area of the Krkonoše Mountains National Park. The mian goal of the thesis was to develop of classification algorithm based on proposed vegetation indices. The approach was based on the utilization of in-situ LAI, fAPAR, chlorophyll content data and analysis of their relation with vegetation spectral properties. The work also deals with several problems regarding LAI - vegetation indices relationship, namely saturation of LAI and mutual correlation of LAI and chlorophyll content. Tha classification was focued on invasive species Rumex alpinus and Lupinus polyphyllus, meadow vegetation with dominant Nardus stricta and dominant Trisetum flavescens and cutted lawns. Besides the proposed approach, the presented work resulted in several classification maps of study area and in spectral libraries, containing ground level spectra of studied invasive species, meadow vegetation types and several other meadow species. Keywords: hyperspectral image data, APEX, LAI, fAPAR, vegetation indices, invasive species, meadow...
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Vztah diverzity a produktivity v travinných společenstvech a jeho mechanismy
LISNER, Aleš
The best estimates of environmental productivity and their relationship to species diversity on different spatial scales have been studied in grassland communities in an observational study. The fertilization effect on height, growth rate, survival rate and changes in species composition has been studied on an oligotrophic wet meadow in a manipulative experiment.
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The Role of Agriculture in the Care of the Historical Mountain Meadows in Sklenářovice
Wolfová, Tereza ; Vaněk, Jindřich (advisor) ; Fedurcová, Alena (referee)
This Bachelor´s theses informs about the degradation of the highland meadows in the Krkonoše region. The process was closely connected with the ressetlement of the original Germans after the 2nd World War. After that nobody wanted to move to this region because of very hard living conditions and mountain landscape. That is why many villages (including Sklenářovice) declined and became desserted. The village of Sklenářovice has very rich history, for example gold mining, a typical activity for the whole Rýchory highland massif. Therefore this Bachelor´s theses icludes also the summary of the most important historical events of this small mountain village situated in the northtern part of Trutnov region. For gaining all the information I used scientific literature and other information resources.
The postwar transfer of the original German inhabitants influenced the life in the village and its surrouding landscape as well. It started to decline because of the lack of experienced farmers. Our forfathers made regular mow of meadows and bred the cattle in the pastures. Diversity of natural species was therefore very rich not only in the Sklenářovice valley but in the whole region. Unfortunately after the 2nd World War new comers didn´t know how care about the meadows properly. That is the reason why the meadows changed a became more and more overgrown. In the following years many things happened for example the establishing of forest brigades or state farming. All these things made the quality of meadows worse.
The situation got better in the 90´s of the 20th century. People realised the necessity of returning to original farming so that its natural and landscape values can be renewed. We can see the start of many programmes for renewal of the original Krkonoše landscape. Most of them are under the leadership of the Administration of Krkonoše Mountains National Park. This Bachelor´s theses suggests the effiecient ways of farming in the meadows so that its natural biological diversity can be preserved. It also informs about its protected biotopes.
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