TREE LITTER PRODUCTION AND DECOMPOSITION IN FOREST ECOSYSTEMS UNDER BACKGROUND CONDITIONS AND INDUSTRIAL AIR POLLUTION

 E.A. Ivanova

Institute of North Industrial Ecology Problems KSC RAS

Akademgorodok st. 14a, Apatity, Murmansk region, 184209, Russia

E-mail: ea.ivanova@ksc.ru

Received 30 June 2021

Revised 04 August 2021

Accepted 16 August 2021

The paper provides an overview of Russian and foreign articles devoted to the study of the tree litter production and decomposition in forest ecosystems subjected to natural and anthropogenic factors. The spatial variability (below crown and between crown spaces) and the seasonal features of the tree litter production, its chemical composition and decomposition processes are poorly studied. In addition, most of the works, both in native and foreign countries science, highlight the influence of natural factors on the litter production and the processes of its decomposition, while the impact of point sources of industrial air pollution is rarely considered. The study of the variability of the size, fractional and chemical composition and processes of decomposition of tree litter under conditions of industrial air pollution is important for predicting the dynamics of forest ecosystems subjected to the combined action of natural and anthropogenic factors and reducing the negative impact of production processes on forests.

Key words: forest ecosystems, tree litter, industrial air pollution, fractional composition, chemical composition, litter decomposition, litter production and decomposition seasonal variability, litter production and decomposition spatial variability

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