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Open AccessArticle

The Influence of Increased Salvage Felling on Forwarding Distance and the Removal—A Case Study from Croatia

1
Faculty of Forestry, University of Zagreb, Svetošimunska Street 25, 10000 Zagreb, Croatia
2
Croatian Forests Ltd., Forest Administration Zagreb, Lazinska Street 41, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Forests 2021, 12(1), 7; https://doi.org/10.3390/f12010007
Received: 3 December 2020 / Revised: 20 December 2020 / Accepted: 21 December 2020 / Published: 23 December 2020
(This article belongs to the Special Issue Planning, Design, and Maintenance of Forest Road Networks)
During the seven-year research period, the average annual removal was by 3274 m3 higher than the average annual removal prescribed by the existing management plan (MP). The main reason lies in the high amount of salvage felling volume at 55,238 m3 (38.3%) in both the main and the intermediate felling due to oak dieback. The analysis of forest accessibility took into account the spatial distribution of cutblocks (with ongoing felling operations) and the volume of felled timber for two proposed factors: (1) the position of the cutblock and (2) the position of the removal. Cutblock position factor took into account the spatial position of the felling areas/sites, while removal position factor besides the spatial reference took into account the amount of felled timber (i.e., volume) both concerning forest infrastructure network and forest operations. The analysed relative forest openness by using geo-processing workflows in GIS environment showed four types of opening areas in the studied management unit (MU): single-opened, multiple-opened, unopened and opened areas outside of the management unit. Negative effects of the piece-volume law and low harvesting densities on forest operations are highlighted in this research due to high amount of salvage felling particularly in the intermediate felling by replacing timber volume that should have come from thinnings. View Full-Text
Keywords: even-aged forest; oak dieback; geometric forwarding distance; harvesting planning even-aged forest; oak dieback; geometric forwarding distance; harvesting planning
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MDPI and ACS Style

Đuka, A.; Bumber, Z.; Poršinsky, T.; Papa, I.; Pentek, T. The Influence of Increased Salvage Felling on Forwarding Distance and the Removal—A Case Study from Croatia. Forests 2021, 12, 7. https://doi.org/10.3390/f12010007

AMA Style

Đuka A, Bumber Z, Poršinsky T, Papa I, Pentek T. The Influence of Increased Salvage Felling on Forwarding Distance and the Removal—A Case Study from Croatia. Forests. 2021; 12(1):7. https://doi.org/10.3390/f12010007

Chicago/Turabian Style

Đuka, Andreja; Bumber, Zoran; Poršinsky, Tomislav; Papa, Ivica; Pentek, Tibor. 2021. "The Influence of Increased Salvage Felling on Forwarding Distance and the Removal—A Case Study from Croatia" Forests 12, no. 1: 7. https://doi.org/10.3390/f12010007

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