A5018385709- Forest Biomass Utilization and Management
- Forest Management and Policy
- Forest ecology and management
- Regional Development and Management Studies
- Remote Sensing and LiDAR Applications
- Forest Ecology and Biodiversity Studies
- Wildlife-Road Interactions and Conservation
- Forest Insect Ecology and Management
- Global Trade and Competitiveness
- 3D Surveying and Cultural Heritage
- Metal Alloys Wear and Properties
- Infrastructure Maintenance and Monitoring
- Agricultural economics and policies
- Metallurgy and Material Forming
- Tunneling and Rock Mechanics
- Environmental Impact and Sustainability
- Transport and Logistics Innovations
- Bioenergy crop production and management
- Logistics and Infrastructure Analysis
- Water Systems and Optimization
- Agricultural and Rural Development Research
- Silkworms and Sericulture Research
- Landslides and related hazards
- Innovation, Technology, and Society
- Geodetic Measurements and Engineering Structures
University of Zagreb
2015-2025
Opera Software (Ireland)
2019
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro
2017
Croatian Forest Research Institute
2016
Planning in forestry should be based on accurate and reliable data. UAVs equipped with RGB cameras can enable fast relatively cheap surveys, but their accuracy depends many factors. Therefore, it is necessary to determine when used this type of survey gives data that does not reflect the true ground situation. This research analyzed usability a UAV, camera, for recording normal cross-sections side ditch depths forest road lowland forest. The was conducted two time periods: during winter...
Forests in Croatia are characterized by higher levels of biodiversity species composition. Three significant events occurred Croatian forests over the past ten years, all which have a common denominator—sanitary felling. The challenge sustainable development started with ice storm 2014 that amounted to damage and raised costs forest stands EUR 231,180,921. second was 2017 when bark beetle outbreak Gorski Kotar region. In December 2017, windstorm same area caused approximately 500,000 m3 wood...
The careful planning of the extraction routes is one most important best management practices to limit soil disturbance related ground-based forest operations. Over recent years, this task has been commonly addressed in framework boreal forestry, by developing trafficability maps based on depth-to-water (DTW) topographic index. basic concept developed with DTW index that soils at low index, namely <1, could be more prone compaction and rutting as they tend have higher moisture...
This study aims to define a simple and effective method calculate skidding distances on steep karst terrain, rich in ground obstacles (stoniness rockiness) support decision planning of secondary primary forest infrastructure network for timber extraction productive selective cut forests. Variations between geometrical actual were highlighted the operational level (i.e., compartment level) through GIS-related calculation models, focusing cable skidder extraction. Automation defining real...
Rutting measurements are a significant part of scientific research on the impact forest vehicles soils and damage to transport infrastructure. Although photogrammetric methods measurement or based LiDAR (light detection ranging) data increasingly being used for rutting measurements, previous conducted using these indicated challenge recording water-filled ruts. For this reason, it is necessary define reliable method field in lowland stands characterized by high level groundwater that fills...
This research was conducted to determine the cause, intensity and location of damage (stem, butt end, root collar, root) extent standing trees during felling processing by an harvester timber extraction a forwarder (cut-to-length system). The in central part Republic Croatia Management Unit (MU) “Bjelovarska Bilogora” thinning Subcompartment 14b, area 18.28 ha, stand hornbeam (Carpino betuli—Quercetum roboris fagetosum Rauš 1975), age 70, 14c, 9.07 common beech (Carici pilosae—Fagetum...
The use of forestry vehicles in mechanised harvesting systems is still the most effective way timber procurement, and need to have high mobility face various terrain conditions. This research gives boundaries planning extraction on sloped with a cable skidder, considering parameters (slope, direction skidding, cone index), vehicle technical characteristics load size (5 different loads) relying sustainability eco-efficiency. Skidder model was based connecting two systems: vehicle-terrain...
Forest roads, as a prerequisite for high-quality forest management, should be optimally distributed in order to avoid negative environmental impacts and best fulfill their task. In the design phase of it is necessary know which factors influence most volume earthworks enable designer adapt terrain requirements. this paper impact an average cross slope carriageway value road on cut fill analyzed. The research was carried out area management unit Trovrh–Kik, characterized by irregular with...
9,10]. Conclusions from these papers showed that the newly introduced market mechanisms alone had not contributed to profiling and selection of best most fitting forestry entrepreneurs.It also pointed out necessity for developing a licensing model which would filter existing contractors ensure quality in performing forest work operations [11].Today private entrepreneurs play an important role global Croatian [12][13][14][15][16][17][18][19].In Croatia they perform significant amount aBStraCt...
Background and Purpose: Terrain trafficability vehicle mobility during timber extraction are highly influenced by terrain characteristics, as well soil bearing capacity.Insufficient planning, too heavy vehicles, excessive traffic, poor knowledge, together with bad weather conditions, cause severe disturbance to forest soil.Damage the ecosystem arises due felling operations, regardless of technical means used in this process.Traffic intensity plays an essential role compaction because...
The accuracy of the positioning data collected by remote sensing platforms is great importance in forest and wildlife surveys, salvage logging, soil disturbances after felling operations, fire risk management many other forestry-based research. significance bark beetles silver fir Norway spruce stands an essential factor that can affect increase biomass quantity reduction its quality. Due to Ips typographus (L.) outbreaks central part Croatia from 2016 2021, logging was performed area 11,940...
The term »loss« should be distinguished from the »waste« commonly used by forestry practitioners to indicate difference between gross volume (planned production based on official tariffs) and net (produced timber volume) of trees. Volume loss in round wood refers actual determined prescribed method measurement calculation. As a result scaling methods calculations, losses appear due 1) equations, 2) (i.e. measurements length mid-length diameter) 3) deduction double bark thickness. In Croatia,...
During the seven-year research period, average annual removal was by 3274 m3 higher than prescribed existing management plan (MP). The main reason lies in high amount of salvage felling volume at 55,238 (38.3%) both and intermediate due to oak dieback. analysis forest accessibility took into account spatial distribution cutblocks (with ongoing operations) felled timber for two proposed factors: (1) position cutblock (2) removal. Cutblock factor areas/sites, while besides reference (i.e.,...
Planiranje šumskih prometnica, kao prva, nezaobilazna i vrlo važna faza uspostavljanja optimalne/najbolje moguće mreže primarne šumske prometne infrastrukture na terenu, može biti na: 1) strateškoj, 2) taktičkoj te 3) operativnoj razini. Strateško taktičko planiranje odnose se cjelokupne primarnih dok operativno odnosi pojedinačne ceste. Rezultat taktičkog planiranja prometnica je, ili bi bar trebala biti, Studija primarnog otvaranja šuma pojedine gospodarske jedinice (dalje: Studija)....
The Technodiversity project addresses technological diversity by gathering a common basis of knowledge and increasing the sensitivity for in forest engineering. It aims to bring together make generally available existing operations that is scattered across various European countries. will serve as bridge between different regions Europe generations students, practitioners, scientists academics. In this article, small part e-learning module (https://technodiversity-moodle.ibe.cnr.it/)...
U radu su prikazani rezultati istraživanja proizvodnosti rada skidera Ecotrac 120V na privlačenju drva poludeblovnom metodom iz proredne i dovršne sječine. Terensko je istraživanje provedeno studijem vremena. Razlike u obujmu tovara, brzini vožnji, izvlačenju užeta privitlavanju te razlike utrošku vremena pojedinih radnih zahvata sječini pomoćnom stovarištu istražene t-testom. Za radne zahvate za koje utvrđena značajna razlika između promatranih sječina daljnjim izračunima primijenjene...
This study compared oak butt-log volume estimations gained through terrestrial measurements in the forest stand with a remote approach using an unmanned aerial system (UAS) and photogrammetric post-processing. Terrestrial were conducted lowland part of Croatia after completed motor–manual final felling 140-year-old even-aged stand. Butt-logs’ volumes estimated four methods: sectioning method Huber’s, Smailan’s Riecke–Newton’s methods. Measuring diameters lengths estimating remotely based on...