Naslov (eng)

Integrated assessment of the physiological and mechanical condition of trees using multispectral UAV analysis, 3D photogrammetry, and acoustic tomography (arbotom): A Linden tree case study

Autor

Šurjanac, Nenad
Lučić, Aleksandar
Živanović, Ivana

Publisher

Opis (eng)

Abstract: Accurate assessment of the physiological and mechanical condition of trees in urban environments represents a key component of risk management and planning of protective measures. This study presents the integration of three methodological approaches—multispectral UAV (drone) analysis, a photogrammetrically-generated 3D model, and acoustic tomography (Arbotom)—applied to an old linden tree (Tilia platyphyllos) located in the courtyard of the Bishop’s Palace of the Šabac Eparchy. The multispectral analysis was used to calculate the NDRE index of physiological activity, while the 3D trunk model served to precisely position the Arbotom sensors. Tomographic measurements at 40 cm and 200 cm revealed degradation zones with a reduction of load-bearing cross-sectional area of 27–39% (lower section) and 43–52% (upper section). The NDRE index indicated localized areas in the crown with reduced physiological activity, while the VTA method confirmed the presence of Ganoderma fungal infection. Integrated results show that the tree currently maintains a stable mechanical structure, with localized degradation zones that do not compromise its static stability. The presented multi-sensor approach demonstrates an effective tool for detection, evaluation, and risk management in urban forestry.

Jezik

engleski

Datum

2025

Licenca

© All rights reserved

Predmet

Keywords: NDRE, UAV, Arbotom, 3D model, photogrammetry, VTA, urban tree, risk management.

Deo kolekcije (1)

o:1347

Radovi Instituta za šumarstvo