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Contemporary Problems of Ecology

2002 year, number 2

Comparison of Time Course of Growth and Reproduction Activity of Siberian Cedar

D. A. SAVCHUK, V. N. VOROBYEV

Abstract

On the basis of retrospective methods of reconstruction of sexual reproduction and shoot and tree growth of Siberian cedar, a comparison of their time course has been made. It is demonstrated that reproduction chonologies, especially in branches of second order, are more sensitive to the influence of external factors than the growth branches are. They differ also in the coefficient of determination and in the autocorrelation function of first order. Differences in the structure of cyclicity and of the trend of chronological changes in the growth and reproduction processes have been found.