USING LIDAR DATA OF FOREST AREAS RECEIVED FROM DRONE FOR DETERMINATION OF TERRAIN ANGLES

UDC 630*587.6

 

Tsai Siarhey Siarheevich – PhD (Agriculture), Senior Lecturer, the Department of Forest Inventory. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: tsai@belstu.by

 

DOI: https://doi.org/ 10.52065/2519-402X-2024-282-4.

 

Key words: lidar survey, digital terrain model, drone, UAV, determination of terrain angles.

For citation: Tsai S. S. Using lidar data of forest areas received from drone for determination of terrain angles. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2024, no. 2 (282), pp. 30–37 (In Russian). DOI: 10.52065/2519-402X-2024-282-4.

Abstract

As part of the pilot work on the use of drones for forestry and forest management purposes, lidar surveys of forest areas with pronounced terrain were carried out in 2022. The purpose of the work was to identify areas of the forest where the angles of inclination of the terrain had critical values limiting the use of logging equipment. The experimental work program included the following stages: the formation of the flight task and the determination of the optimal parameters of lidar survey of forest areas; performing lidar surveys (using UAVs) of forest areas with pronounced relief; preliminary filtering of the raw data obtained and the formation of a point cloud in a common format; software processing of the formed point cloud and the formation of a digital terrain model for the studied area; determining terrain angles using a digital terrain model; identifying terrain areas with critical tilt angles. Lidar survey of forest areas was carried out on the territory of the Goretsky forestry of the Mstislavsky and Pervomaisky forestry districts. The paper considers a technique for processing raw lidar data of forest areas in order to form a digital relief model and identify the angles of inclination of these areas. With its help, it is possible to identify forest areas with critical values of terrain inclination angles that limit the use of logging machines.

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