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Contemporary Problems of Ecology

2009 year, number 2

Stability of Grass Ecosystems

A. A. Titlyanova
Keywords: ecosystem, biological turnover, phytocenosis production, phytomass
Pages: 237-243

Abstract

Two aspects of the stability of grass ecosystems are considered theoretically and with specific examples: the ability to maintain the structures and functions, and the ability to recover them after disturbances. The low resistance of the species structure of the grass community and the high stability of the biotic turnover, both its structure and functioning, were demonstrated. In spite of the low resistance, the species structure of the phytocenosis possesses high elasticity, which is expressed in its recovery within a short time interval in the presence of seeds and after removal of the stressing action.