Abstract
Anthropogenic activities lead to significant transformations of natural landscapes. In this article, an attempt was made to describe the soil succession in the context of 100-year dynamics of Scots Pine forest stand in Kursk region. The morphological, physical, chemical and physical and chemical characteristics of sandy podzols in the chronological order of pine forests functioning 0 - 70 - 100 years were under analysis. It was revealed that monodominant forest stand of Scots Pine leads to the transformation of soils at the type level. It is noted that forest stand of Scots Pine on Umbric Podzols contribute to the development of the podzolic process at an average rate of formation of the podzolic horizon - 0.11 - 0.17 sm / year. During the time period of the soil succession (100 years), the thickness of the soil profile has increased and the humus reserves in the profile have increased by 47.1%, as well as a total decrease in the content of mineral nutrients is noted. The content of mobile forms of heavy metals (Cu, Zn, Ni, Mn and Co) in the genetic horizons of Carbic Podzols (Arenic) in the time interval of the succession 70 - 100 years decreases by 21.4 - 71.4%.
Highlights
Anthropogenic impact affects the change in the functioning of all natural mechanisms and influences natural processes in ecosystems and the biosphere as a whole
There is relatively little information regarding the long-term dynamic processes occurring in rare types of soils, under conditions of increased anthropogenic burden
The age and qualitative composition of plantations is a powerful driver that triggers the transformation of soil characteristics [15, 16], which affect the rest of the environment. Such transformations of natural and natural-anthropogenic landscapes subsequently affect the quality of the environment and economic activity, the direction and speed of soil successions of sandy podzols, functioning under intrazonal vegetation in conditions of increased spatial heterogeneity of the environment, requires detailed research. [13]
Summary
Anthropogenic impact affects the change in the functioning of all natural mechanisms and influences natural processes in ecosystems and the biosphere as a whole. Artificially planted pine forests are atypical communities for the Kursk regions (10% of the afforestated area) and their characteristic feature is a connection with a certain stage of the succession series. The age and qualitative composition of plantations is a powerful driver that triggers the transformation of soil characteristics [15, 16], which affect the rest of the environment. Such transformations of natural and natural-anthropogenic landscapes subsequently affect the quality of the environment and economic activity, the direction and speed of soil successions of sandy podzols, functioning under intrazonal vegetation in conditions of increased spatial heterogeneity of the environment, requires detailed research. The aim of the work was to identify the speed and direction of successions of sandy podzols within the microperiod of pedogenesis 0 - 100 years (in Kursk region)
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