| Abstract [eng] |
Urban green areas - urban natural systems are increasingly posing scientists and land managers 'concerns about contamination of allergenic potential, and invasive species are harmful to humans and the full nature and spread of urban tunes into less anthropogenic impact on natural systems. This thesis describes the patterns and provide data useful Pakruojis residents and scientists. The aim - to explore how invasive and cause nasal plants are found and how they are distributed Pakruojyje; identify invasive plants cause nasal and sprouts prevalence ; green areas to make mowing work in assessment Pakruojis ; develop recommendations based on the research results, how to deal with invasive plants and cause nasal Pakruojis city. The analysis of the spread of invasive plants Pakruojis in 2013 years - It turned out that in Pakruojis commonly found in North American plants arrived (Lat. Acer palmatum L.) 64 original location (Lat. Solidago canadensis L.) 32 original location ( Lat. Echinocystis lobata Mi - chx .) 11 location sites ( Lat. Phalacroloma septentrionale Fern . Wiegers et.) 22 original location ( Lat. Solidago altissima L ) . After field studies showed that Pakruojis detected in nasal cause meadow grass 13 recognized species. Characterized by an abundance of 80% of the 2 species (Lat. Phalaris arundinacea L.) (Lat. Lolium perenne L.) . Nasal -causing weed survey was conducted in 2013. Pakruojo abandoned urban sites dominated (Lat. Artemisia vulgaris L.). (Lat. Artemisia vulgaris L.) were detected in 21 out of seagrass - formed in 2808 m2 area and ( Lat. Artemisia absinthium L.) - only 2 of the assemblage on a - 8 m2. The prevalence of nasal causing trees in 2013 Pakruojis city. (Lat. Betula pendula Roth . ) Occupies 5940 m2, the prevalence found in Pakruojis around town. The obtained results showed that people tend to mow fairly often , since the total area of very frequent mowing works - 166 m2, and the total area of the field is 400 m2, which is less green hay field is 244 m2. In order to reduce the allergenic potential of plants and invasive plant pollution should be: weed allergy- causing weeds, remove of packets. Invasive plants: beds are herbicides to destroy, destroy and trees – the cut. |
