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Kulagin A.Yu., Tagirova O.V. MONITORING OF TREE PLANTATIONS OF SILVER BIRCH (BETULA PENDULA ROTH) IN TERMS OF THE UFA INDUSTRIAL CENTERResearch was conducted during the period from 2011 to 2014. In the territory of the city of Ufa 14 constants of the trial areas by standard techniques were put. For definition of the morphological features used for an assessment of stability of development of plantings of a birch (Betula pendula Roth) on each trial square 10 trees were numbered and from each tree during the vegetative season samples of leaves were monthly selected (till 20–30 pieces). The size of an integrated indicator of stability of development of plantings of a birch in the conditions of the Ufa industrial center, both in the territory with industrial pollution, and in the territory with the raised recreational loading is received. The analysis of an integrated indicator of stability of development of separate trees of a birch in plantings in the territory of the Ufa industrial center allowed to reveal considerable distinctions in indicators of asymmetry of sheet plates. The integrated indicator of stability of development of plantings is received. The analysis of results of researches testifies that dynamics of formation of a leaf of a birch is broken. The leaf is formed with deviations. That characterizes reaction of plants to a stress factor. Frequency of occurrence of indicators of stability of development depending on a growth zone was determined. Materials are generalized, the conclusion about frequencies of occurrence of asymmetry depending on pollution zones is made. On the basis of monitoring conclusions are drawn that the condition of wood plantings in the conditions of the Ufa industrial center needs to be investigated with the numbered trees on a network of the constant trial areas.Key words: birch, integral index, asymmetry, stability, industrial area, recreation area.
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About this article
Authors: Kulagin A.Yu., Tagirova O.V.
Year: 2015
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Editor-in-chief |
Sergey Aleksandrovich MIROSHNIKOV |
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