Transfer of artificial reforestftion to a forested area using unmanned aerial vehicles

The forest cultures of scots pine were studied in the 96th quarter of the Veshkelsky district forestry of the Suoyarva Central forestry of the Republic of Karelia. Prior to logging, forest type – Pinetum vacciniosum of t his site. Logging was carried out in 2009, the number of stumps is 893 pcs./ha. In the spring of 2013, tillage was carried out by creating mineralized strips with a Forwarder tractor coupled with a PD-2 plow. Planting of forest crops was carried out by standard 2- year-old seedlings of scots pine – Pinus sylvestris L. under the Kolesov sword. The initial density was 3500 copies/ha. The planting material was obtained from the Suoyarva forest nursery. The soil is sandy loam, lightly salted. Survival rate after the first year is 97.7%, safety after the third year is 95.0%. At the time of the survey, the composition of young animals on the forest crops site was 68C23B9Os +E The total number of young animals is 3840 copies/ha., of which pine trees are 2300 copies/ha. All types of work by the ground method are carried out on accounting sites of different sizes with a minimum number of plants of the main breed of at least 150 pcs. (with an area of a forest-cultivated plot of up to 3 ha) and at least 400 pcs. with an area of more than 10 hectares. All types of work are significantly reduced when using modern methods. One of the methods to reduce labor costs is the use of unmanned aerial vehicles. Modern aircraft make it possible to obtain all the main characteristics of forest crops: density, average height, the nature of placement by area and the vital condition of plants. The accuracy of determining the height of plants and the diameter of the crown was about 2%. At the same time, the determination of the density of forest crops using UAVs turned out to be more accurate than using the ground method, respectively 2631 and 2300 copies/ ha. The use of UAVs, in addition, makes it possible to obtain additional information – microrelief, areas with forest crops, curtain and sinusium, which, according to certain characteristics, cannot be transferred to a forested area. unsuitable for translation. The preservation of forest crops was more than 75% at the time of the survey. Therefore, the studied forest crops are subject to transfer to a forested area.

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