Assessment of Stem Volume on Plots Using Terrestrial Laser Scanner: A Precision Forestry Application

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F21%3A89652" target="_blank" >RIV/60460709:41320/21:89652 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1424-8220/21/1/301" target="_blank" >https://www.mdpi.com/1424-8220/21/1/301</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s21010301" target="_blank" >10.3390/s21010301</a>

Result language
angličtina
Original language name
Assessment of Stem Volume on Plots Using Terrestrial Laser Scanner: A Precision Forestry Application
Original language description
Timber volume is an important asset, not only as an ecological component, but also as a key source of present and future revenues, which requires precise estimates. We used the Trimble TX8 survey-grade terrestrial laser scanner (TLS) to create a detailed 3D point cloud for extracting total tree height and diameter at breast height (1,3 m, DBH). We compared two different methods to accurately estimate total tree heights: the first method was based on a modified version of the local maxima algorithm for treetop detection, H-TTD, and for the second method we used the centers of stem cross-sections at stump height (30 cm), H-TSP. DBH was estimated by a computationally robust algebraic circle-fitting algorithm through hierarchical cluster analysis (HCA). This study aimed to assess the accuracy of these descriptors for evaluating total stem volume by comparing the results with the reference tree measurements. The difference between the estimated total stem volume from H-TTD and measured stems was 2,732 m(3
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20705 - Remote sensing

Project
<a href="/en/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Advanced research supporting the forestry and wood-processing sector´s adaptation to global change and the 4th industrial revolution</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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