This thesis focuses on spatial distribution of vegetation species on the earth hummocks on Mt. Keprník and Mt. Praděd in the Hrubý Jeseník Mts., the relationship of the spatial distribution of vegetation to windward and leeward effect, and also on the morphological characteristics of earth hummocks. The windward and leeward effect was studied not only on the earth hummocks themselves, but also in the whole study area. The succession of vegetation, which reflects an activity of earth hummock and a level of their development, was also concerned. Earth hummocks are nonsorted patterned ground types. Vegetation on earth hummocks affects not only their formation, but also their shape and internal characteristics. Further,vegetation reflects certain properties of earth hummocks (moisture, soil characteristics etc.), and also ecological conditions which affect earth hummocks (wind impact, distribution of snow cover etc). Each studied earth hummock was first measured (length, width and height) in the field and then was divided into quadrants according to the efect of wind (windward quadrant oriented SW, windward quadrant oriented NE, and two remaining quadrants oriented NE, NW) in which phytocenological surveys were carried out. The results show that the vegetation on earth hummocks is strongly efected by...
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:340032 |
| Date | January 2014 |
| Creators | Kodríková, Anna |
| Contributors | Křížek, Marek, Sklenář, Petr |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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