Open AccessTHE STATE OF VEGETATION AROUND THE TOBOLSK INDUSTRIAL SITE
Author(s) -
Elena Popova
Publication year - 2017
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2687-1076
pISSN - 1812-9498
DOI - 10.24143/1812-9498-2017-2-90-94
Subject(s) - vegetation (pathology) , environmental science , plant community , herbaceous plant , abundance (ecology) , pollen , range (aeronautics) , blank , ecological succession , ecology , physical geography , geography , biology , medicine , pathology , mechanical engineering , materials science , engineering , composite material
The article presents the results of the study of the phytocenoses in the suburbs of Tobolsk, which are in close proximity to industrial enterprises. The state of herbaceous vegetation has been studied. The species composition of vascular plants was being defined at the geobotanical sites at the time of the description. The description included: the total projective coverage of the phytocenosis, the projective coverage of individual tiers, the species composition of the community and abundance/ covering of each species on a Brown-Blank seven-point scale. The selection of sites with anthropogenic impact was done, a description of the herbage composition was completed, and counting the number of all plants on specially designated sites was carried out as well as collecting of plant samples and cameral and statistical processing of pollen fertility data. The percentage of fertile grains was determined, which varied in the range from 74-80% (site No.1), 78-82% (site No. 2), 65-100% (control site). The productivity of phytocoenosis was determined. The average value of wet and dry phytomass in the sites. The saturation and density of phytocenoses were also determined. The obtained results can be used to estimate the degree of anthropogenic load on phytocenoses and to predict the degree of their probable changes. The forecast of the results will allow developing the necessary system of measures aimed at increasing the stability of plant communities. Experimental data are of interest in terms of assessing the anthropogenic effect on vegetation.