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2021, № 3 (45) |
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ECOLOGY
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Lihachev S.V., Zhakova S.N. |
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Ecological analysis of weed flora agricultural territories near Perm |
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An ecological and phytocenotic analysis of the weed flora of the environs of Perm was carried out. An indicator of abundance and occurrence of species was used. Found 193 species (135 genera from 30 families). 45 species (23%) are active. 148 species (77%) have low activity. 80 species (41%) are anthropophytes and 113 species (59%) are apophytes. To assess the participation of anthropophytes, we propose to use a special index (anthropophytization). In this territory, it is 0.71. Activity is exclusively shown by anthropophytes. 64% of anthropophytes are therophytes (according to Raunkiær Ch.). For the environmental characteristics of the flora, it is preferable to use weighted average Ellenberg scales. This indicator takes into account the phytocenotic activity of species. The analysis used the Tsyganov scale. Eurybionts are most often involved in clogging. Of the 80 anthropophytes: 20% - hemicryptophytes; 13% - geophytes; terophytes predominate - 67%. Of 113 apophytes: 53% - hemicryptophytes; 32% - geophytes; 15% are terophytes. Most therophytes occupy the lower tier of phytocenosis.
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