Dependence of Phytomass of Herbaceous Cenoses on Weather Factors in Anthropogenically Impacted Areas
T. V. ZHUIKOVA1,2, V. S. BEZEL'2, I. E. BERGMAN2, V. A. GORDEEVA1, E. V. MELING1
1Nizhny Tagil State Social Pedagogical Institute, 622031, Nizhny Tagil, Krasnogvardeyskaya str., 57
2Institute of Plant and Animal Ecology, Ural Branch of RAS, 620144, Yekaterinburg, 8 Marta str., 202
Keywords: травяные фитоценозы, надземная и подземная фитомассы, погодные факторы, антропогенно трансформированные территории, тяжелые металлы, herbaceous phytocenoses, epiterranean and subterranean biomass, weather factors, anthropogenically impacted areas, heavy metals
Abstract
The paper deals with phytomass of herbaceous phytocenoses growing on anthropogenically impacted areas in the Middle Urals at different stages of succession along heavy metal pollution gradient. Cenoses of young soils of dumps have less resistance and higher sensitivity to changes in weather factors, in contrast to the phytocenoses of the deposits. It is shown by the method of general regression models that the epiterranean and subterranean biomass of cenoses in technozems depends on the Selyaninov’s hydrothermic coefficient for September and the amount of precipitation in October - November of the previous year and in January - May of the current year. The degree of this dependence for cenoses under study is determined by edaphic conditions that affect the species diversity and dominance structure.
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