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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Zpracování porostních map pro teakové plantáže v Nikaragui na lokalitě La Reserva
 Vojtek, Michal
This work is concerned with the creation of an area map created in ArcGIS. As the base layer, the orthophoto was taken using UAV. The catchment area is located on a forest farm in La Reserva Nicaragua. On this farm is located since 2006 plantation HFC main tree species teak (Tectona grandis L.)
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Návrh rozložení přibližovacích linek na základě fotogrammetrie v Thajsku
 Petrovičová, Lucia
Suitable skidding trail layout is important in sustainable forestry system, thus can minimise the damages to trees and economical losses. In a cooperation between Mendel University in Brno and Kasetsart University in Bangkok a potential use of photogrammetry based skidding trail layout was evaluated. Certain plots of teak plantation in Thong Pha Phum were captured with and further processed in Agisoft Metashape software. On obtained orthophoto single trees were distinguished and understory trees for thinning from below were identified on Weighted Voronoi diagram base. On Kernel Density Estimation base a tree density estimation raster output were created. Considering irregular teak spacing a subjective approach for skidding trail layout design was applied, with emphasis to shorten skidding distances and reducing the possible damages to remaining trees and soils.
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Vliv různé intenzity probírky na přírůst v porostech týku (Tectona grandis) založeného ve sponu 1 x 1 m
 Hricko, Tomáš
The aim of this work was to find out the effect of three different cultivation interventions on teak forest (Tectona grandis) based on Nicaragua plantations in an unusual spacing 1x1m and to determine which of these interventions have the best influence in terms of the growth of wood mass and consequent mechanical stability of the overgrown stands. A height and thickness measurement of trees in the area of interest was carried out in 2014-2017. It was always a series of three types of thinning (schematic with 75% reduction, schematic combination with positive selection with 45% reduction and individual negative trench with about 55% reduction, one control area was left without intervention) in three replicates for stands based on years 2006, 2007 and 2008. According to our results, the best intervention is those with 75 % of reduction.
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Růst týku (Tectona grandis) v podmínkách suchých tropů v Nikaragui
 Haninec, Peter
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