Abstract
To analyze and quantitatively estimate the contribution of different factors of competition from the edificator tree stand to its effect on plants comprising the lower forest vegetation layer, a set of ecophysiologically based indices of root, light, and integrated competition has been proposed and tested. The results obtained in pine and spruce forests forests of Western Siberia and the Urals show that the growth of the conifer undergrowth is more closely correlated with the index of root competition, and that of heather (Calluna vulgaris (L.) Hull.), with the index of light competition from the edificator tree stand. Moreover, the correlation of their growth with the integrated competition index is 15–25% stronger than the correlation with the indices of root and light competition, irrespective of forest type.
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Original Russian Text © N.S. Sannikova, S.N. Sannikov, I.V. Petrova, Yu.D. Mishchikhina, O.E. Cherepanova, 2012, published in Ekologiya, 2012, No. 6, pp. 403–409.
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Sannikova, N.S., Sannikov, S.N., Petrova, I.V. et al. Competition factors of edificator tree stand: Quantitative analysis and synthesis. Russ J Ecol 43, 426–432 (2012). https://doi.org/10.1134/S1067413612060070
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DOI: https://doi.org/10.1134/S1067413612060070