broj: 5-6/2020
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| RIJEČ UREDNIŠTVA | ||
| Uredništvo | ||
| Are foresters the biggest problem of Our Beautiful Homeland? pdf HR EN | 229 | |
| IZVORNI ZNANSTVENI ČLANCI | ||
| Mario Božić, Filip Đureta, Ernest Goršić, Mislav Vedriš | UDK 630*569 (001) https://doi.org/10.31298/sl.144.5-6.1 | |
| Influence of a measurer and measurement errors on measurement of a tree diameter pdf HR EN | 233 | |
| Mario Šporčić, Matija Landekić, Ivana Bartulac, Ksenija Šegotić | UDK 630*309 (001) https://doi.org/10.31298/sl.144.5-6.2 | |
| Application of multicriteria AHP method in selection of wood harvesting system pdf HR EN | 247 | |
| SUMMARY Decision-making, as a process of selecting some of the alternatives to solve a given problem, in forestry is extremely demanding because of the multiplicity and wide range of criteria involved in the decision-making process. Such interests and criteria cover a number of economic issues, social issues, environmental and ecological issues. The application of different multicriteria decision-making methods in such situations can be an important and potentially good way of addressing many forestry issues and problems. Multicriteria decision-making has been present in forestry for more than 40 years, however, more significant application has begun in the 1990s and numerous, in the meantime published multi-criteria papers dealing with different forestry issues in various areas. In this paper, a multicriteria procedure – Analytic hierarchy process (AHP) was used to evaluate the existing timber harvesting systems in Croatian forestry. The AHP, introduced by Thomas Saaty (1980), is an effective tool for dealing with complex decision making. By reducing complex decisions to a series of pairwise comparisons, and then synthesizing the results, the AHP helps to capture both subjective and objective aspects of a decision. In this way it aids the decision maker to set priorities and make the optimal decision. By using the AHP method, the appropriateness of particular timber harvesting systems for the specific conditions of selected forest stand and planned production tasks (thinning) was evaluated. The study included a comparison of seven different timber harvesting systems, i.e. alternatives: 1) Logger and adapted farm tractor, 2) Logger and skidder with winch, 3) Logger and forestry trailer with crane, 4) Logger and forwarder, 5) Harvester and forwarder, 6) Logger and mobile tower yarder, 7) Logger and cable yarder on truck. The aim was to develop a model for multicriteria assessment of the suitability and effectiveness of particular timber harvesting systems and also demonstrate the possibilities of applying the AHP method, as well as other multicriteria methods in forestry. Based on the prepared questionnaire, i.e. examination of forestry experts and comparison of existing timber harvesting systems, according to the set criteria, the ranks of individual alternatives were determined and a decision proposal was made on the selection of optimal timber harvesting system for the foreseen production tasks and specific conditions of a particular forest management area. Given the defined technological-biological, economic, environmental, ergonomic, energy and aesthetic selection criteria, a system consisting of a harvester and a forwarder was evaluated as the most appropriate option. Designed multi-criteria approach offers more comprehensive bases for deciding on the most suitable technologies and means of work at many different forestry sites in Croatia. The research results can thus support forestry professionals in decision making and indirectly influence the selection and implementation of specific timber harvesting systems. The development and application of AHP and other multi-criteria methods in this regard can be valuable assistance at the strategic and operational level of decision-making in forestry. Key words: timber harvesting systems; forestry; decision making; multicriteria models; AHP | ||
| Ivana Vitasović-Kosić, Mara Vukojević, Sandro Bogdanović | UDK 630* 174+182(001) https://doi.org/10.31298/sl.144.5-6.3 | |
| First inventory of vascular flora of Matokit mountain (Biokovo massif, Croatia) pdf HR EN | 257 | |
| Ali Kemal Özbayram, Emrah Çiçek | UDK 630* 561(001) https://doi.org/10.31298/sl.144.5-6.4 | |
| Initial planting density experiments of narrow-leaved ash in Turkey: ten-year results pdf HR EN | 269 | |
| Abdullah E. Akay, Michael Wing, Halit Büyüksakalli, Salih Malkoçoglu | UDK 630* 432 (001) https://doi.org/10.31298/sl.144.5-6.5 | |
| Evaluation of Fire Lookout Towers Using GIS-based Spatial Visibility and Suitability Analyzes pdf HR EN | 279 | |
| PREGLEDNI ČLANCI | ||
| Damir Drvodelić, Milan Oršanić | UDK 630* 232.4+237 https://doi.org/10.31298/sl.144.5-6.6 | |
| Planting seedlings of narrow-leaved ash (Fraxinus angustifolia Vahl) to recover dieback-affected forest stands pdf HR EN | 289 | |