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Full-Text Articles in Forest Sciences
Application Of Handheld Laser Scanning Technology For Forest Inventory Purposes In Thene Turkey, Can Vatandaşlar, Mustafa Zeybek
Application Of Handheld Laser Scanning Technology For Forest Inventory Purposes In Thene Turkey, Can Vatandaşlar, Mustafa Zeybek
Turkish Journal of Agriculture and Forestry
Forest inventory (FI) is the most challenging stage of forest management and planning process. Therefore, in situ surveys are often reinforced by modern remote sensing (RS) methods for collecting forestry-related data more efficiently. This study tests a stateof- the-art data collection method for practical use in the Turkish FI system for the first time. To this end, forest sampling plots were conventionally measured to collect dendrometric data from 437 trees in Artvin and Saçınka Forest Enterprises. Then, each plot was scanned using a handheld mobile laser scanning (HMLS) instrument. Finally, HMLS data were compared against ground measurements via basic FI …
Compatible Merchantable Stem Volume And Taper Equations For Eucalyptusplantations In The Eastern Mediterranean Region Of Turkey, Ramazan Özçeli̇k, Mehmet Fati̇h Göçeri̇
Compatible Merchantable Stem Volume And Taper Equations For Eucalyptusplantations In The Eastern Mediterranean Region Of Turkey, Ramazan Özçeli̇k, Mehmet Fati̇h Göçeri̇
Turkish Journal of Agriculture and Forestry
No abstract provided.
Development Of Ecoregion-Based Height-Diameter Models For 3 Economically Important Tree Species Of Southern Turkey, Ramazan Özçeli̇k, Hakki Yavuz, Yasi̇n Karatepe, Nevzat Gürlevi̇k, Rüstem Kiriş
Development Of Ecoregion-Based Height-Diameter Models For 3 Economically Important Tree Species Of Southern Turkey, Ramazan Özçeli̇k, Hakki Yavuz, Yasi̇n Karatepe, Nevzat Gürlevi̇k, Rüstem Kiriş
Turkish Journal of Agriculture and Forestry
Seven different nonlinear height (h)-diameter (d) models were developed and compared for brutian pine (Pinus brutia Ten.), black pine (Pinus nigra Arnold), and Taurus cedar (Cedrus libani A.Rich.) in southern Turkey. Residual analysis was conducted to identify the error structure. A weighting factor of w_i =1/d was found to be appropriate for achieving the equal error variance assumption. The performance of the models was compared and evaluated based on 6 statistical criteria and residual analysis. Results suggested that the Gompertz model was superior to the other models in terms of its predictive ability. These tree species were located throughout the …
Developing Alternative Wood Harvesting Strategies With Linear Programming In Preparing Forest Management Plans, Emi̇n Zeki̇ Başkent, Sedat Keleş
Developing Alternative Wood Harvesting Strategies With Linear Programming In Preparing Forest Management Plans, Emi̇n Zeki̇ Başkent, Sedat Keleş
Turkish Journal of Agriculture and Forestry
In this paper, the process of developing alternative wood harvesting strategies in forest management planning is presented. Alternative wood harvesting strategies based on linear programming (LP) include a planning horizon of 100 years, an objective of the maximization of net present value (NPV) and various constraints such as classical volume control (even flow) and wood assortments. Model outputs are presented and discussed along with NPVs and amounts of wood assortments by alternative wood harvesting strategies consisting of various discount rates and wood assortments.