Влияние лесозаготовительной техники на динамику естественного возобновления леса после рубки хвойно-лиственного насаждения средней тайги

Abstract

The work presents the results of experimental studies on assessment of preliminary and subsequent reforestation depending on the disturbance of the soil cover by logging equipment. The initial survey of the reforestation in the clearing showed the uneven settlement of the territory by woody plants in most parts and individual technological elements. According to morphological characteristics and a set of soil genetic horizons, the soil can be classified as typical Albic Retisols, which develop on loamy soil-forming rocks in well-drained landscapes. We found that the soil of the skidding trail is morphologically close to the original soil. The drag soils have undergone both morphological and chemical changes. The key difference is the change in the composition of the organic horizon following the arrival of a large amount of felling residues and changes in the composition of the ground cover plants. The morphometric parameters of the trees in the mixed stand and undergrowth are of high lability. The stand was dominated by small trees and small undergrowth. The stand and undergrowth are characterized as “healthy”. Relatively good uniformity of its settlement by woody plants was revealed only on portages in ruts with a predominant regeneration of small-leaved species. When the trails are heavily littered, there is no appearance of woody plants. There is no regeneration in the reclaimed felling areas in the first and second years. There is no resumption in sections with aligned tracks in the first and second year.