Spreading of alien plant species along tourist tracks in Karkonosze Mts.
1999
Wasilowska, A. (Polish Academy of Sciences, Dziekanow Lesny (Poland). Dept. of Bioindication)
The investigation of plants growing along rarely frequented paths in the region of Mumlawski Wierch (1219 m a.s.l.) and a busy tourist track leading onto Szrenica Mt. (1362 m a.s.l.) were performed. An analysis was made of a distance to which the species brought by tourists may invade spruce forest communities. It was found that the number of non-indigenous species depends primarily on intensity of tourist traffic; a distance of their penetration into communities of spruce forests depends on the degree of tree cover destruction
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