The evaluation of physical properties of soils on the pathways in birch stand of Krasnoyarsk academic town

As a result of recreation in the forests of Krasno-yarsk Academic Town the tracks on which physical properties of the soil are subject to the greatest changes were formed. The determination of character and extent of these changes also made the main objective of the research. For its achievement researches of density, porosity and structure of the soil on a roadside and in the center of tracks in a birch forest mixed grasses, growing in the lower part of Krasnoyarsk Academic Town were conducted. Three upper layers of gray me-dium-thick loamy soils (0-5; 5--10; 10-20 cm) were studied using standard field and laboratory methodolo-gies. The results revealed greater increase of soil densi-ty in the center of trails, especially in the upper layer (1.36 vs 0.65 g/cm3 in control site), which negatively impacted the soil structure. Most of its aggregates ac-quire a plate-shaped form and grow larger to macro-structure size (more than 10 mm), the share of which reaches 34.3 %, while the content of the most valuable aggregates (2-5 mm) is 23...