Authors: V.I. Utimtsev, F.G. Utimtsev

Title of the article: Open forest value as the factor of formation of steady forest ecosystems on technogenic landscapes

Year: 2018, Issue: 1, Pages: 20-27

Branch of knowledge: Earth sciences

Index UDK: 574.42

DOI: 10.26730/1999-4125-2018-1-20-27

Abstract: Comparative assessment of structural components of the young pine stands which are formed on the sites of reforestation of dumps of the coal industry has been carried out. The purpose of the studies was to justify the creation of open forests in the reclamation of technogenic landscapes. It is established that, the open forests rank below in the reserves of stem wood by 2,5-3 times to close stands, however they considerably exceed them in the ratio of the phytomass of non-stem fractions to stem wood. In this regard open forests have a signifi-cantly higher photosynthesizing potential and can be considered as highly effective biological mechanisms of atmospheric carbon deposition. It is defined that in the open forests favorable conditions for natural renewal of the population of a forest forming species are created being the integral condition of stability of an ecosystem. Under the cover of open forests, the developed herbage is formed which is conceding according to the phytocenological characteristics to complex meadow vegetable groups, while at a high crown density, the herbage isn't formed. The developed legume-forbs-grass sward of open forests promotes acceleration of soil formation which at high crown density is abruptly slowed down under the influence of the recalcitrant pine fall. Due to syngenetic formation of each component, open forest ecosystems have considerable ecological advantage in comparison with close stands.

Key words: dump sites of overburden rock reforestation technogenic forest ecosystems open forests undergrowth herbage the embryonic soils stability

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