Određivanje srednje udaljenosti privlačenja drva na nagnutim terenima pomoću aerofotogrametrijskih snimaka

master's thesis

• Title (english): Determining Average Skidding Distance on Slope Terrain Using Aerial Photogrammetry
• Author: Antonio Aščić
• Mentor: Andreja Đuka (mentor)
• Committee member: Andreja Đuka (predsjednik povjerenstva)
• Committee member: Tibor Pentek (član povjerenstva)
• Committee member: Ivica Papa (član povjerenstva)
• Granter: University of Zagreb; Faculty of Forestry and Wood Technology; (Institute of Forest Engineering); Zagreb
• Defense date and country: 2024-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Forestry

Abstract

S ciljem što efikasnijeg planiranja i gospodarenja šumskim ekosustavima imajući u vidu smanjenje troškova rada pridobivanja drva neophodno je postojanje što točnijih i preciznijih izvora podataka. Srednja stvarna udaljenost privlačenja drva jedan je od parametara koji daju uvid u troškove budućih radova. Istraživano područje obuhvaćeno diplomskim radom nalazi se u Upravi šuma podružnica (UŠP) Delnice, konkretno šumariji Vrbovsko, gospodarske jedinice (GJ) Cetin, odsjek 11a i Gložac, odsjeci 19b i 20b te u šumariji Skrad, gospodarske jedince (GJ) Jasle, odsjeci 33a i 58a. Glavni ciljevi rada su: odrediti optimalnu veličinu piksela izrađenih digitalnih modela terena (DMT) na temelju aerofotografija snimljenih bespilotnom letjelicom pri kojoj ne dolazi do statistički značajne razlike u računanju stvarne udaljenosti privlačenja drva za analizirane izvozne pravce istraživanog područja, pritom imajući na umu da izrađeni DMT sadržavaju što manju količinu podataka potrebnih za pohranu; utvrditi postoji li statistički značajna razlika pri izračunu stvarne udaljenosti privlačenja drva izvoznih pravaca na temelju postojećeg digitalnog modela terena veličine piksela 15 x 15 m dostupnog za kompletno područje Republike Hrvatske i digitalnog modela terena dobivenim aerofotogrametrijskim snimanjem istraživanog područja

Abstract (english)

For the purpose of more efficient planning and management of forest ecosystems, with an emphasis on reducing wood harvesting costs, it is essential to have highly accurate and precise data sources. The average actual skidding distance is one of the parameters that provide insight into the costs of future operations. The study area covered by this thesis is located in the Forestry Administration (FA) Delnice, specifically the Vrbovsko forestry office (FO), management units (MU) Cetin, subcompartment 11a, and Gložac, subcompartments 19b and 20b, as well as the Skrad forestry office (FO), management units (MU) Jasle, subcompartments 33a and 58a. The main objectives of the study are: to determine the optimal pixel size of the created digital terrain models (DTM) based on aerial photographs taken by an unmanned aerial vehicle, at which there is no statistically significant difference in calculating the actual skidding distance for the analyzed extraction routes of the study area, while keeping in mind that the created DTMs contain the minimal amount of data needed for storage; to determine whether there is a statistically significant difference in the calculation of the actual skidding distance of extraction routes based on the existing digital terrain model with a pixel size of 15 x 15 m available for the entire area of the Republic of Croatia and the digital terrain model obtained by aerial photogrammetry of the study area.

• Keywords: Bespilotne letjelice; digitalni model terena; prostorne analize u GIS-u; primjena bespilotnih letjelica u šumarstvu; planiranje; veličina piksela; stvarna udaljenost privlačenja drva
• Keywords (english): Unmanned aerial vehicles; digital terrain model; spatial analysis in GIS; application of unmanned aerial vehicles in forestry; pixsel size; real skidding distance
• Language: croatian
• URN:NBN: urn:nbn:hr:108:942818
• Study programme: Title: Forestry; department; Techniques, Technologies and Management in Forestry; specializations in: Techniques, Technologies and Management in Forestry, Techniques, Technologies and Management in Forestry; Course: Techniques, Technologies and Management in Forestry; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka šumarstva (magistar/magistra inženjer/inženjerka šumarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-08-26 11:26:25