Andreas Tockner
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View article: Position-dependent variations in cell wall orientation of hardwood branches: Evidence from wide-angle X-ray diffraction
Position-dependent variations in cell wall orientation of hardwood branches: Evidence from wide-angle X-ray diffraction Open
The secondary cell wall is a highly optimised structure and large repository of carbon, making wood an efficient tool for carbon sequestration in long-lasting materials. However, the prospective material use of branch wood is not realised,…
View article: Small area estimation of growing stock timber volume, basal area, mean stem diameter, and stem density for mountain forests in Austria
Small area estimation of growing stock timber volume, basal area, mean stem diameter, and stem density for mountain forests in Austria Open
Regression models were evaluated to estimate stand-level growing stock volume (GSV), quadratic mean diameter (QMD), basal area (BA), and stem density (N) in the Brixen im Thale forest district of Austria. Field measurements for GSV, QMD, a…
View article: LiDAR for Green Infrastructure: monitoring vertical greening with wooden support structures
LiDAR for Green Infrastructure: monitoring vertical greening with wooden support structures Open
Green infrastructures (GI) are key elements in urban areas for heat mitigation, carbon capture and providing of aesthetic reasons. However, there is currently limited knowledge about the effects of various plant compositions, arrangements …
View article: Quantification of Forest Regeneration on Forest Inventory Sample Plots Using Point Clouds from Personal Laser Scanning
Quantification of Forest Regeneration on Forest Inventory Sample Plots Using Point Clouds from Personal Laser Scanning Open
The presence of sufficient natural regeneration in mature forests is regarded as a pivotal criterion for their future stability, ensuring seamless reforestation following final harvesting operations or forest calamities. Consequently, fore…
View article: Potential of Apple Vision Pro for Accurate Tree Diameter Measurements in Forests
Potential of Apple Vision Pro for Accurate Tree Diameter Measurements in Forests Open
The determination of diameter at breast height (DBH) is critical in forestry, serving as a key metric for deriving various parameters, including tree volume. Light Detection and Ranging (LiDAR) technology has been increasingly employed in …
View article: Small area estimation of growing stock timber volume, basal area, mean stem diameter, and stem density for mountain forests in Austria
Small area estimation of growing stock timber volume, basal area, mean stem diameter, and stem density for mountain forests in Austria Open
Regression models were evaluated to estimate stand-level growing stock timber volume (GSV), quadratic mean diameter (QMD), basal area (BA), and stem density (N) in the Brixen im Thale forest district of Austria. Field measurements for GSV,…
View article: Optimizing line-plot size for personal laser scanning: modeling distance-dependent tree detection probability along transects
Optimizing line-plot size for personal laser scanning: modeling distance-dependent tree detection probability along transects Open
Personal laser scanning (PLS) systems are gaining popularity in forest inventory research and practice. They are primarily utilized on circular or compact rectangular sample plots to mitigate potential instrument drift and enhance tree det…
View article: Modeling of solar radiation and sub-canopy light regime on forest inventory plots of mixed conifer and deciduous temperate forests using point clouds from personal laser scanning
Modeling of solar radiation and sub-canopy light regime on forest inventory plots of mixed conifer and deciduous temperate forests using point clouds from personal laser scanning Open
Solar radiation is a major driver of forest ecosystems and affects the hydrological cycle and energy balance. The vitality of trees strongly depends on the amount of light input to individual trees, and successful forest regeneration deman…
View article: Automatic detection of color markings and numbers on trees in point clouds from Personal Laser Scanning (PLS) and Terrestrial Laser Scanning (TLS)
Automatic detection of color markings and numbers on trees in point clouds from Personal Laser Scanning (PLS) and Terrestrial Laser Scanning (TLS) Open
In forestry, colored spray paint is used for different purposes, such as marking trees that are chosen for the next harvest or that will be promoted by future silvicultural activities, or for the demarcation of skid/cable roads. Numerous s…
View article: Spatial Prediction of Diameter Distributions for the Alpine Protection Forests in Ebensee, Austria, Using ALS/PLS and Spatial Distributional Regression Models
Spatial Prediction of Diameter Distributions for the Alpine Protection Forests in Ebensee, Austria, Using ALS/PLS and Spatial Distributional Regression Models Open
A novel Bayesian spatial distributional regression model is presented to predict forest structural diversity in terms of the distributions of the stem diameter at breast height (DBH) in the protection forests in Ebensee, Austria. The distr…
View article: Variability of mechanical properties of hardwood branches according to their position and inclination in the tree
Variability of mechanical properties of hardwood branches according to their position and inclination in the tree Open
Although hardwood building materials are mainly produced from the tree stem, the branches of deciduous trees make up a significant proportion (20–50%) of their above-ground biomass. Regrettably, the mechanical properties of branches are la…
View article: Spatial prediction of diameter distributions for the alpine protection forests in Ebensee, Austria, using ALS/PLS and spatial distributional regression models
Spatial prediction of diameter distributions for the alpine protection forests in Ebensee, Austria, using ALS/PLS and spatial distributional regression models Open
A spatial distributional regression model is presented to predict the forest structural diversity in terms of the distributions of the stem diameter at breast height (DBH) in the protection forests in Ebensee, Austria. In total 36,338 samp…
View article: Measurement of Individual Tree Parameters with Carriage-Based Laser Scanning in Cable Yarding Operations
Measurement of Individual Tree Parameters with Carriage-Based Laser Scanning in Cable Yarding Operations Open
Introduction: Cable yarding is a technology that enables efficient and sustainable use of timber resources in mountainous areas. Carriages as an integral component of cable yarding systems have undergone significant development in recent d…
View article: SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands
SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands Open
This dataset contains 3D point clouds, automatically calculated single tree parameters, reference data, and application videos of carriage-based laserscanning in cable yarding operations. Point clouds from 8 cable corridors and 4 scan vara…
View article: SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands
SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands Open
This dataset contains 3D point clouds, automatically calculated single tree parameters, reference data, and application videos of carriage-based laserscanning in cable yarding operations. Point clouds from 8 cable corridors and 4 scan vara…
View article: SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands
SKY-LAUT – Carriage-based laser scanner data from Austrian forest stands Open
This dataset contains 3D point clouds, automatically calculated single tree parameters, reference data, and application videos of carriage-based laserscanning in cable yarding operations. Point clouds from 8 cable corridors and 4 scan vara…
View article: LAUTx - Individual Tree Point Clouds from Austrian forest Inventory plots
LAUTx - Individual Tree Point Clouds from Austrian forest Inventory plots Open
This dataset contains manually segmented tree point clouds from Personal Laser Scanning (PLS) data, and additionally automatic segmented trees from the same point clouds. The raw point cloud data has been published in LAUT - Terrestrial an…
View article: LAUTx - Individual Tree Point Clouds from Austrian forest Inventory plots
LAUTx - Individual Tree Point Clouds from Austrian forest Inventory plots Open
This dataset contains manually segmented tree point clouds from Personal Laser Scanning (PLS) data, and additionally automatic segmented trees from the same point clouds. The raw point cloud data has been published in LAUT - Terrestrial an…
View article: Accuracy and Precision of Stem Cross-Section Modeling in 3D Point Clouds from TLS and Caliper Measurements for Basal Area Estimation
Accuracy and Precision of Stem Cross-Section Modeling in 3D Point Clouds from TLS and Caliper Measurements for Basal Area Estimation Open
The utilization of terrestrial laser scanning (TLS) data for forest inventory purposes has increasingly gained recognition in the past two decades. Volume estimates from TLS data are usually derived from the integral of cross-section area …
View article: Measurement of Forest Inventory Parameters with Apple iPad Pro and Integrated LiDAR Technology
Measurement of Forest Inventory Parameters with Apple iPad Pro and Integrated LiDAR Technology Open
The estimation of single tree and complete stand information is one of the central tasks of forest inventory. In recent years, automatic algorithms have been successfully developed for the detection and measurement of trees with laser scan…
View article: iLAUT – iPad laser scanner data from Austrian forest Inventory plots
iLAUT – iPad laser scanner data from Austrian forest Inventory plots Open
The estimation of stand- and individual tree information is one of the major goals of forest inventory. Conventionally, field data in forest inventory are collected at tree level on sample plots by means of manual measurements (e.g., calip…
View article: iLAUT – iPad laser scanner data from Austrian forest Inventory plots
iLAUT – iPad laser scanner data from Austrian forest Inventory plots Open
The estimation of stand- and individual tree information is one of the major goals of forest inventory. Conventionally, field data in forest inventory are collected at tree level on sample plots by means of manual measurements (e.g., calip…
View article: Automatic Mapping of Forest Stands Based on Three-Dimensional Point Clouds Derived from Terrestrial Laser-Scanning
Automatic Mapping of Forest Stands Based on Three-Dimensional Point Clouds Derived from Terrestrial Laser-Scanning Open
Mapping of exact tree positions can be regarded as a crucial task of field work associated with forest monitoring, especially on intensive research plots. We propose a two-stage density clustering approach for the automatic mapping of tree…