Peculiarities of the vegetation cover of subtaiga and forest-steppes in the south-east of the west siberian plain and the north Minusinsk basin

Abstract

The article deals with the peculiarity of vegetation cover of subtaiga and forest-steppe in the southeast of the West Siberian Plain and North-Minusinsk Basin. We give a general description of the vegetation and its varieties: South taiga spruce-pine-fir forests with birch, aspen and swamps; birch and aspen forests in combination with coniferous forests, meadows and swamps; birch and aspen forests with the inclusion of conifers – mainly spruce and fir, with meadow grass and swamps; meadow steppes, meadows with birch and aspen forests; herb-shrub and grassy pine and aspen-birch and aspen forests; mountain dark coniferous taiga; meadows combined with marshes, bushes and forests. The presence of a number of relict signs indicates that the formation of soil, changing the boundaries of vegetation zones and structure of the vegetation cover, is connected with the changing of climatic conditions in the post-glacial era. Traces of dry time are available in subtaiga and in the forest-steppe. It is noted that the forested areas near settlements are located on the hayfields, pastures and plowed fields among groves and woods, are presented by small-leaved birch and aspen stands. Forest has water-regulating value, but forms a complex configuration of fields and meadows, thus reducing the efficiency for the use of agricultural machinery. The article shows the relevance of the problem of deforestation and the possible risks of environmental changes if insufficient attention is paid to this negative process. Problems of reforestation are being raised.