Phytocenoses at Environments Contact Sites as Proxies of Climate Dynamics with Time (East Siberia, Russia)

作     者：Alexander P. Sizykh Alexander P. Sizykh

作者机构：Siberian Institute of Plants Physiology and Biochemistry Siberian Branch of Russian Academy of Sciences Irkutsk Russia 

出 版 物：《Natural Science》 (自然科学期刊（英文）)

年 卷 期：2016年第8卷第3期

页      面：105-114页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Phytocenoses Environment Contact Sites Proxies Climate Dynamics Baikalian Siberia 

摘      要：Usage of methods for determination of long-term trends of the dynamics of vegetation formation on the background of climate changes becomes more and more important at modern stage of the assessment of natural systems development. This causes to researchers a series of problems from choice of conceptual base to notions and terms of the processes identified and of state of vegetation of different environments. Solution of such a task results inevitably in necessity to correct the understanding of existing processes occurring in the vegetation cover. It allows establishing a direction of their development in the system of natural factors of any territory. As a result, we have base for determination of age, site and role of current state of phytocenoses in successional systems. It is necessary for this to reveal the peculiarities of phytocenoses composition and formation due to climate dynamics and to determine a period of ecosystems homeostasis, especially for phytocenoses of contact natural conditions. Optimal values of phytocenoses diversity, like one of whole biosystems, depend on the amount of resource in the environment, on stability degree and on evolutional development of cenoses due to ecological, micro-evolutional and evolutional processes.