Substantiation of Technological Processes and Machinery Systems for Logging Operations

The work analyses the forest raw material resources of the Far Eastern Federal District. Corresponding to the conclusions, it is made an evaluation of a promising technology and systems of machinery for logging. It shows the significance of logging development for the rational exploitation of forest resources and the economic progress of the Far Eastern Federal District. It is performed an analysis of different technological procedures for timber harvesting. The study gives a mathematical model for the evaluation of forestry companies by economic efficiency, regarding the resolution “The Strategy for the Development of the Forest Complex of the Russian Federation Until 2030”. The examination of the region’s forest resources reveals that, currently, in coniferous forests, up to 60 % of industrial wood is available from the total volume of timber for harvesting. However, the sawlog of 1–2 classes contains only 30–35 % of this volume. Within the framework of the research conducted in the developed cutting areas are established territorial-technological plots, in which logging residues are produced and collected. In these plots, the types and the volumes of the abandoned wood are determined. It is estimated that approximately 40–50 % of the annual volume of the timber released for logging is left as a trunk lowvalue timber and forest residues at cutting areas and loading points. The article gives a proposal fоr the automation systems and technologies for harvesting in mixed stands with low-valued wood class, which allow to increase the degree of usable wood, reduce risks from littering and provide in the future various regional forestry companies with row materials. The represented mathematical model on determination of economic efficiency and cost-effectiveness of technological process allows to make rational decisions on the implementation of bucking program of forestry company. For citation: Ryabukhin P.B., Kunitskaya O.A., Grigoreva O.I. Substantiation of Technological Processes and Machinery Systems for Logging Operations. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 2, pp. 88–105. (In Russ.). https://doi.org/10.37482/0536-1036-2023-2-88-105