Using a weighted Voronoi diagram for forest thinning proposal and skidding trail layouts for teak plantations in Thailand

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F24%3A43926342" target="_blank" >RIV/62156489:43410/24:43926342 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.19182/bft2024.361.a37219" target="_blank" >https://doi.org/10.19182/bft2024.361.a37219</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.19182/bft2024.361.a37219" target="_blank" >10.19182/bft2024.361.a37219</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Using a weighted Voronoi diagram for forest thinning proposal and skidding trail layouts for teak plantations in Thailand

Popis výsledku v původním jazyce

Timber skidding is one of the many causes of destruction or damage to forest stands. Any sustainable forestry system requires a suitable skidding trail layout that minimises damage to trees and soils as well as eco nomic losses. Imagery of six teak plantation plots in Thong Pha Phum was captured with a DJI Mavic Pro unmanned aerial vehicle and further processed with Agisoft Metashape software. Single trees could be distingui shed in the canopy height model thus created, and understory trees for thinning from below were identified from a weighted Voronoi diagram. This approach does not include a field survey and therefore needs to include an assessment of the health and quality of the trees, but it can be conside red as a basis for accelerating the process of marking trees for thinning. Rasterisation was applied to produce an estimate of tree density based on Kernel Density Estimation. Given the irregular spacing of the teak trees, a subjective approach was applied to plot a skidding trail layout, with the emphasis on shortening skidding distances and redu cing potential damage to soils and remai ning trees. This study could help to improve access to forest stands by improving the quality of skidding and reducing damage to standing trees and to the timber itself.

Název v anglickém jazyce

Using a weighted Voronoi diagram for forest thinning proposal and skidding trail layouts for teak plantations in Thailand

Popis výsledku anglicky

Timber skidding is one of the many causes of destruction or damage to forest stands. Any sustainable forestry system requires a suitable skidding trail layout that minimises damage to trees and soils as well as eco nomic losses. Imagery of six teak plantation plots in Thong Pha Phum was captured with a DJI Mavic Pro unmanned aerial vehicle and further processed with Agisoft Metashape software. Single trees could be distingui shed in the canopy height model thus created, and understory trees for thinning from below were identified from a weighted Voronoi diagram. This approach does not include a field survey and therefore needs to include an assessment of the health and quality of the trees, but it can be conside red as a basis for accelerating the process of marking trees for thinning. Rasterisation was applied to produce an estimate of tree density based on Kernel Density Estimation. Given the irregular spacing of the teak trees, a subjective approach was applied to plot a skidding trail layout, with the emphasis on shortening skidding distances and redu cing potential damage to soils and remai ning trees. This study could help to improve access to forest stands by improving the quality of skidding and reducing damage to standing trees and to the timber itself.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bois et Forets des Tropiques

ISSN

0006-579X

e-ISSN

1777-5760

Svazek periodika

361

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

15

Strana od-do

25-39

Kód UT WoS článku

001465413000003

EID výsledku v databázi Scopus

2-s2.0-85216645570