Analysing individual 3D tree structure using the R package ITSMe

Abstract Detailed 3D quantification of tree structure plays a crucial role in understanding tree‐ and plot‐level biophysical processes. Light detection and ranging (LiDAR) has led to a revolution in tree structural measurements and its 3D data are increasingly becoming publicly available. Yet, calcu...

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Main Authors: Louise Terryn, Kim Calders, Markku Åkerblom, Harm Bartholomeus, Mathias Disney, Shaun Levick, Niall Origo, Pasi Raumonen, Hans Verbeeck
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Methods in Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1111/2041-210X.14026
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author Louise Terryn
Kim Calders
Markku Åkerblom
Harm Bartholomeus
Mathias Disney
Shaun Levick
Niall Origo
Pasi Raumonen
Hans Verbeeck
author_facet Louise Terryn
Kim Calders
Markku Åkerblom
Harm Bartholomeus
Mathias Disney
Shaun Levick
Niall Origo
Pasi Raumonen
Hans Verbeeck
author_sort Louise Terryn
collection DOAJ
description Abstract Detailed 3D quantification of tree structure plays a crucial role in understanding tree‐ and plot‐level biophysical processes. Light detection and ranging (LiDAR) has led to a revolution in tree structural measurements and its 3D data are increasingly becoming publicly available. Yet, calculating structural metrics from LiDAR data can often be complex and time‐consuming and potentially requires expert knowledge. We present the R package Individual Tree Structural Metrics (ITSMe), a toolbox that works with LiDAR tree point clouds and quantitative structure models (QSMs) derived from LiDAR point clouds to obtain individual tree structural metrics. It serves as a robust synthesis framework for researchers who want to readily obtain structural information from 3D data of individual trees. The package includes functions to determine basic structural metrics (tree height, diameter at breast height, diameter above buttresses, projected crown area, 3D alpha crown volume) from individual tree point clouds, as well as more complex structural metrics (individual tree component volumes, branch angle‐, radius‐ and length‐related metrics) from QSMs. The ITSMe package is an open‐source package hosted on GitHub that will make the use of 3D data more straightforward and transparent for a range of end‐users interested in exploiting tree structure information.
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spelling doaj.art-5f1dc501520c4d0d8d85168dd27bbf102023-08-01T18:55:41ZengWileyMethods in Ecology and Evolution2041-210X2023-01-0114123124110.1111/2041-210X.14026Analysing individual 3D tree structure using the R package ITSMeLouise Terryn0Kim Calders1Markku Åkerblom2Harm Bartholomeus3Mathias Disney4Shaun Levick5Niall Origo6Pasi Raumonen7Hans Verbeeck8CAVElab – Computational and Applied Vegetation Ecology, Department of Environment Ghent University Ghent BelgiumCAVElab – Computational and Applied Vegetation Ecology, Department of Environment Ghent University Ghent BelgiumComputing Sciences, Tampere University Tampere FinlandWageningen University & Research, Laboratory of Geo‐Information Science and Remote Sensing Wageningen The NetherlandsUCL Department of Geography London UKCSIRO Land and Water Winnellie Northwest Territories AustraliaClimate and Earth Observation group ‐ National Physical Laboratory Teddington UKComputing Sciences, Tampere University Tampere FinlandCAVElab – Computational and Applied Vegetation Ecology, Department of Environment Ghent University Ghent BelgiumAbstract Detailed 3D quantification of tree structure plays a crucial role in understanding tree‐ and plot‐level biophysical processes. Light detection and ranging (LiDAR) has led to a revolution in tree structural measurements and its 3D data are increasingly becoming publicly available. Yet, calculating structural metrics from LiDAR data can often be complex and time‐consuming and potentially requires expert knowledge. We present the R package Individual Tree Structural Metrics (ITSMe), a toolbox that works with LiDAR tree point clouds and quantitative structure models (QSMs) derived from LiDAR point clouds to obtain individual tree structural metrics. It serves as a robust synthesis framework for researchers who want to readily obtain structural information from 3D data of individual trees. The package includes functions to determine basic structural metrics (tree height, diameter at breast height, diameter above buttresses, projected crown area, 3D alpha crown volume) from individual tree point clouds, as well as more complex structural metrics (individual tree component volumes, branch angle‐, radius‐ and length‐related metrics) from QSMs. The ITSMe package is an open‐source package hosted on GitHub that will make the use of 3D data more straightforward and transparent for a range of end‐users interested in exploiting tree structure information.https://doi.org/10.1111/2041-210X.14026LiDARquantitative structure modelsR packagetree structural metrics
spellingShingle Louise Terryn
Kim Calders
Markku Åkerblom
Harm Bartholomeus
Mathias Disney
Shaun Levick
Niall Origo
Pasi Raumonen
Hans Verbeeck
Analysing individual 3D tree structure using the R package ITSMe
Methods in Ecology and Evolution
LiDAR
quantitative structure models
R package
tree structural metrics
title Analysing individual 3D tree structure using the R package ITSMe
title_full Analysing individual 3D tree structure using the R package ITSMe
title_fullStr Analysing individual 3D tree structure using the R package ITSMe
title_full_unstemmed Analysing individual 3D tree structure using the R package ITSMe
title_short Analysing individual 3D tree structure using the R package ITSMe
title_sort analysing individual 3d tree structure using the r package itsme
topic LiDAR
quantitative structure models
R package
tree structural metrics
url https://doi.org/10.1111/2041-210X.14026
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