Non-Destructive Analysis of the Root System and Tree Growth Parameters

Malinovski, Ricardo Anselmo; Nutto, Leif; Wiese, Willian Schwegler; Brunsmeier, Martin

doi:10.1590/0100-67622016000200011

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…In recent years, many kinds of non-destructive tree measurement methods including hyperspectral [3][4], infrared [5], two-dimensional image [6], ultrasonic [7], laser point cloud [8] and other methods have been widely used. UAV-sensed high-resolution imagery [9], 2D laser point clouds [10], Feller-buncher cutting sounds [11], ARBOTOM® equipment ( Measure root sound waves) [12] and Digital images [13] [14] have been adopted to measure the diameters at breast height (DBH). Jarocińska et al [15] used AISA hyperspectral images to analyze the locations, species and levels of discolouration and defoliation of trees.…”

Section: A Backgroundmentioning

confidence: 99%

Trunk Model Establishment and Parameter Estimation for a Single Tree Using Multistation Terrestrial Laser Scanning

Pan

Zhang

et al. 2020

IEEE Access

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Parameter estimation and effective tree trunk model establishment are significant to tree biomass measurements and three-dimensional (3D) reconstruction. In this study, we proposed a trunk model establishment and parameter estimation method for a single tree through multistation terrestrial laser scanning (TLS). This approach obtains a more accurate and dense point cloud and yields several improvements. First, to correct the tree position, the angle between the trunk centreline and the vertical line was extracted to normalize the tree point clouds. Subsequently, some tree model parameters were accurately calculated. The tree height was extracted based on individual differences rather than directly adopting the Digital Elevation Model (DEM) model; The B-Spline curve fitting was added to the diameters at breast height (DBH) measure, which better determined the shape of the DBH compared with circle fitting; The CBH was measured by multi-view voxel projection instead of Single-view fixed threshold segmentation, which confirmed the position of the CBH more accurately. To highlight the effectiveness and pertinence of the proposed method, we analysed three plots that the proposed method can achieve more accurate results, where the mean relative error (MRE) of the tree height, DBH and CBH were 1.89%, 1.74% and 2.91% satisfying the accuracy standard specified by the technical indicators (± 5%). The experimental results validate the trunk model accuracy and the effectiveness of the parameter measurements (close to the field measurements). The proposed method is significantly different from the accuracy of the previous method. The proposed method has the best accuracy in Multistation Terrestrial Laser Scanning. Hence the proposed method has outstanding performance in the high-precision extraction of trunk parameters and the construction of trunk models which will perform forest inventory and construction of virtual forest more accurately.

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Section: A Backgroundmentioning

confidence: 99%

Trunk Model Establishment and Parameter Estimation for a Single Tree Using Multistation Terrestrial Laser Scanning

Pan

Zhang

et al. 2020

IEEE Access

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“…Note that, generally, tree roots are concentrated close to the trunk base and they are included into the canopy projection on the ground, although, in some situations, they reach a greater extension [18,32]. According to an initial analysis of the radargrams (Figure 2), it is possible to see how much, for the entire width of the road, the works related to modern subservices at various depths (between 0.1 m and 0.6 m, approximately) have intruded upon the likely area of the roots.…”

Section: Area 1: Via DI Valle Delle Camenementioning

confidence: 99%

A posteriori GPR Evaluation of Tree Stability: A Case Study in Rome (Italy)

Barone

Ferrara

2019

Remote Sensing

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Following the frequent and harmful collapses of trees that have plagued the municipal territory of Rome in recent years, a protocol of understanding was initiated between the Department of Environmental Protection of ROMA CAPITALE, the American University of Rome, the Research Centre for Forestry and Wood of the– Council for Agricultural Research and Economics (CREA)–, and Sensors and Software, Inc. This protocol aims to start an experimental project by conducting a series of non-destructive geophysical measurements using ground-penetrating radar (GPR) technology and assessing the effectiveness of this methodology to investigate the root system and tree trunks located along paved roads in two sample areas of the city. The test will use the GPR technique to confirm some hypothetical assumptions about tree stability based on a posteriori evaluations made by the Department of Environmental Protection of ROMA CAPITALE. All phases of this test showed the effectiveness of the method and the rapidity of the data acquisition.

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“…The main difference in the application of methods would be that of different direction in which the sound is propagated (Fu 2005;Beldeanu 2008;Kazemi et al 2009). As such, in trees the acoustic method can be used only at the level of some cross-sections (Martinis et al 2004;Wang et al 2007;van Wassenaer 2010;Feng et al 2014;Li et al 2014;Musat et al 2014;Rinn 2014) located on the stem, branches, or even roots (Sandoz and Lorin 1996;Malinovski et al 2016), while for harvested stems or logs, the method can be used also parallel to the fibers, in the longitudinal plane (Lear 2005;Rohanova 2009;Wang and Carter 2015).…”

Section: Introductionmentioning

confidence: 99%

The agreement in accuracy between tomograms, resistograms, and the actual condition of the wood from lime trees harvested from cities

Musat

2023

BioRes

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The internal quality of the wood is one of the main factors affecting the stability of trees, and it has always been of great interest to science and practice. For this reason, the present study aims to compare the results obtained by wood tomograms with those of resistance to drilling and the visual appearance after cutting a slice with a chain-saw, both to evaluate the presence and dimensions of the inside defects, and also to evaluate the irregularities of the wood structure. Round pieces of lime wood harvested from public areas were used for comparison by taking sound tomograms, followed by taking resistograms on two perpendicular directions at the same level. The results showed that internal wood defects are not always the ones that lead to reduced speeds of sound propagation through the wood. In addition, there were instances in which changes in the internal structure of the wood led to improperly colored tomograms, namely the sections characterizing the point of insertion of a thick branch in the trunk, where the tomograms indicated low speeds of sound transfer through the wood in the stem and high speeds in the wood of the branch.

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Non-Destructive Analysis of the Root System and Tree Growth Parameters

Cited by 6 publications

References 10 publications

Trunk Model Establishment and Parameter Estimation for a Single Tree Using Multistation Terrestrial Laser Scanning

Trunk Model Establishment and Parameter Estimation for a Single Tree Using Multistation Terrestrial Laser Scanning

A posteriori GPR Evaluation of Tree Stability: A Case Study in Rome (Italy)

The agreement in accuracy between tomograms, resistograms, and the actual condition of the wood from lime trees harvested from cities

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