| Abstract [eng] |
Lakes around the world are important aesthetic elements shaping the landscape, rich in biodiversity. The great recreational potential and commercial value of the lakes are undeniable, and the lakes of some countries in the world and in Europe are particularly important as a source of drinking water. Lately, the values of the lakes have been increasingly threatened by unidentified or hardly managed coastal cliffs. The paper analyses the problem of coastal common reeds, as this species is one of the most frequent in lakes and occupies the largest area. The objective of the work is to determine the physical properties (water temperature, transparency and oxygen saturation) of Bridvaišis, Gauštvinis and Gilius lakes and the influence of recreation on the process of common reed spreading. The following tasks were set to achieve the objective of the work: to determine the physical parameters of the Bridvaišis, Gauštvinis and Gilius lakes: transparency, dissolved oxygen content, water temperature; measure the height of the reeds growing in selected lakes and the number and density of interbundles; to assess the intensity of recreation in the lakes of Bridvaišis, Gauštvinis and Gilius; to determine the relationship between the results of lake physical parameters and recreational load with the morphological parameters of reed. |
