Numerical Modeling of Successional Transitions in Agroecology.

Autor: Salugin, A. N.
Zdroj: Russian Agricultural Sciences; Mar2020, Vol. 46 Issue 2, p187-191, 5p
Abstrakt: Time dependences of projective coatings for different ecotopes of soil-plant communities on pastures in arid zones are obtained by numerical dynamic modeling in the form of ordinary differential equations. The models are developed for the dynamics of the functioning of four types of phytocenoses with different interaction schemes. The variety of schemes of succession transitions is caused by biological diversity and determines the mechanisms of self-organization of soil-plant ecosystems. The interaction between ecotopes in dynamic models is described by a matrix of mutual successional transitions between them. A computational experiment technique is developed to construct the evolution of such transitions and identify bifurcation points. The dependence of evolutionary processes on the complexity of internal connections in the ecosystem was found. It is shown that the self-recovery ability of pasture plant communities is associated with the diversity of their phytocenoses. Synergetic provisions of phytocenoses' joint development in the regime of succession transitions are formulated. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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