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Öğe Assessing the effects of site factors on the productivity of a feller buncher: a time and motion analysis(Northeast Forestry Univ, 2019) Bilici, Ebru; Akay, Abdullah Emin; Abbas, DaliaWe evaluated, for the first time in Turkey, the productivity of a feller buncher during clear-cut operations of two Brutian pine stands located in Canakkale, northwestern Turkey with different diameter classes and terrain conditions. In the first stand with 24.6cm average DBH, the feller buncher cut full trees and moved them to roadside. In the second stand with 34.3cm average DBH, the feller buncher cut trees in two stages due to their larger diameters and the relatively steep and rough terrain conditions of the site. The effects of specific stand features, DBH and tree height measurements were assessed through statistical analysis in relation to productivity. The results indicate that the average productivity for the first stand was about 118m(3)h(-1), while it was about 80m(3)h(-1) in the second stand. Even though tree diameter and volume were higher in the second stand, productivity decreased by 32.3% due to extra time spent on the two-stage cutting operation. The results revealed that harvesting operations should be planned carefully and the right equipment selected by accounting for different tree sizes, terrain conditions and machine specifications in order to better understand their effects on production.Öğe ASSESSMENT OF FIREFIGHTING FACILITIES AND ROADS REGARDING WITH FIRE-RESISTANT FOREST PROJECT (YARDOP)(EDITURA UNIV, 2019) Bilici, Ebru; Gencal, Burhan; Taş, İnanç; Akay, Abdullah EminAs a result of natural disasters such as fire, storms, avalanches etc., natural resources have been destroying rapidly in the world. Due to global warming and other factors, forest fires result in serious damages on forest resources in arid regions. Therefore, firefighting activities should be well planned and special attention should be paid to grow fire-resistant forest in the regions with high fire risk. For this purpose, firefighting facilities (i.e. fire breaks, fire lines) and roads for the purpose of fire protection and fire-fighting should be specially evaluated in these regions. Road networks are effectively used during and after a fire and are also used to stop the fire. In this study, the firefighting facilities and roads developed for fire intervention within the Fire- Resistant Forest Project (YARDOP) have been evaluated. Within the project, firefighting facilities have been planned to build a fire-resistant stands. These firefighting facilities can also be used for firefighting purposes. This study indicated that the standards of firefighting facilities and roads used in YARDOP projects are likely to be an alternative solution for many countries, especially in the Mediterranean countries and generally in the same environmental conditions around the world.Öğe ASSESSMENT OF POST-FME SALVAGE LOGGLIKG OPERATEIONS DK MEDITERRANEAN REGION OF TURKEY(Croatian Forestry Soc, 2017) Bilici, Ebru; Eker, Mehmet; Hasdemir, Mesut; Akay, Abdullah EminVarious problems such as massive volume loss, erosion, degradation of water resources, and air pollution emerge after forest fire incidents. Thus, necessary forest operations should be quickly planned and implemented after forest fires so that afforestation activities can take place immediately to maintain forest vegetation in burned areas. The aim of this study was developing a Post-fire Action Planning (PFAP) model to minimize the time spent on salvage logging activities. PFAP model will assist decision makers for removing salvage timber in a timely manner after large scale forest fires, while considering economic and environmental constraints, and dealing with available employment conditions in local forest industry. The capabilities of this model were examined by standardizing the operational planning and developing a fast decision-making process. The model was implemented in Tasagil Forest Enterprise Chiefs (FEC) of Antalya Forest Regional Directorate where the forests are sensitivity to fire at the first degree level and the second largest forest fire in the history of Turkish Forestry occurred in this area in 2008. The findings of PFAP model were compared with the data of actual salvage logging operation obtained from the FEC. The results indicated that using operational planning based PFAP model is capable of reducing total time spent on salvage logging operation by about 60%. Based on the forestry compartments of the study area, estimated durations of salvage logging operations were 15 to 75 days less than that of actual operations taken place in the field. Therefore, it is highly anticipated that using operational planning based PFAP model has great potential to provide economically and environmentally sound forest operations after forest fires.Öğe EXTRACTION OF RESINOUS ROOT WOODS AS AN ALTERNATIVE SOURCE OF RESIN IN TURKEY(EDITURA UNIV, 2019) Akay, Abdullah Emin; Taş, İnanç; Gencal, Burhan; Bilici, EbruTo meet increasing market demands on resin raw material and its derivatives leads to the search for new alternative sources. The resin, which is generally produced by opening the wounds on the standing trees, can be produced by extracting from the root parts of the trees. Especially after the pine trees are cut, there is a high accumulation of resin in the stump on the soil surface and the root parts under the soil. These parts of the trees that are left under the soil surface are called resinous root wood and in recent years its importance as an alternative source of resin production is increasing in Turkey. In this study, technical information about pine root wood and its extraction was given and methods of producing resinous root wood were presented. The information obtained from forest service was evaluated in terms of marketing of resinous root wood. It is anticipated that the production of resinous pine root wood will be promising alternative source of resin raw material with the arrangements that can be made to provide alternative job opportunities to the local people in rural areas.Öğe Productivity Analysis of Post-fire Salvage Logging Operations in Bursa, Turkey(Warsaw Univ Life Sciences-Sggw, 2016) Bilici, Ebru; Akay, Abdullah Emin; Ozkan, Didem[No Abstract Available]Öğe Productivity of a Portable Winch System Used in Salvage Logging of Storm-Damaged Timber(Zagreb Univ, Fac Forestry, 2019) Bilici, Ebru; Andiç, Güryay Volkan; Akay, Abdullah Emin; Sessions, JohnStorm damages result in serious losses in many regions, primarily by stem breakage or blow-down. Extraction of storm-damaged trees often requires more difficult than normal skidding activities due to obstacles created during the storm. In this study, the productivity of a portable winch was evaluated as a possible alternative to recover storm-damaged timber. Field measurements were conducted in the Alabarda Forest Enterprise Chief located near the city of Kutahya in western Turkey, where storm damage often occurs during the winter season. The time study was implemented in two slope classes (35% and 55%) and two skidding distances (40 m and 60 m). All timber was skidded uphill. A regression mode was developed that related productivity to log volume, ground slope and skidding distance. The highest percentage of total cycle time was observed for skidding logs to the landing. The highest productivity (3.96 m(3)/hour ) was found at the shorter skidding distance (40 m) and the lower ground slope (35%). Statistical analyses indicated that productivity was most highly affected by log volume, followed by skidding distance and ground slope. Larger log loads increased productivity, while both longer skidding distances and steeper slopes reduced productivity.Öğe Visual Quality Assessment of Road Network within the Forested Areas(Warsaw Univ Life Sciences-Sggw, 2016) Akay, Abdullah Emin; Bilici, Ebru; Cankal, Seyma DemetThe effects of different roads standards on visual quality have been investigated. The pictures of some roads within the forested areas of Usak Forest Enterprise Directorate were taken and road template components such as cut slope, fill slope, and road platform were evaluated for visual quality purposes. The effects of different road types (valley road, hillside road, and hill road) and road surface types (native road, forest road, gravel road, and asphalt road) on visual quality were also evaluated for road template components and different weather conditions (normal and wet weather). The results indicated that vegetation cover on cut and fill slopes was considerably effective on visual quality. It was found that hillside roads were better than other road types regarding with visual quality. Native roads and forest roads exposed better visual quality in normal weather conditions, while asphalt and gravel roads were better in wet weathers.
