期刊
FORESTS
卷 13, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/f13050669
关键词
CTL; forwarder; logging; productivity; biomass
类别
资金
- European Union [745,874]
This study found that shortening log length specifications can significantly increase log yield in low-yielding plantations, but it also comes with an increase in harvesting cost. Measures are suggested to mitigate the cost increment.
Log production is the main target of new short-rotation poplar plantations, and their profitability depends on maximizing log yield. The authors set up a controlled experiment to determine the log yield increase obtained by shortening log length specification from 4 to 2 m, and to quantify the additional cost incurred by this change. The experiment indicated that reducing log length specifications allows a significant increase (+40%) in log yield in low-yielding (<25 BDT ha(-1)) plantations, only. Such increase is matched by a parallel increase in harvesting cost (+33%) that must be balanced against the recovered additional value. Measures are suggested to mitigate the harvesting cost increment, such as: dual log length specifications, modifications of the forwarder load bay and changing from cut-to-length to whole-tree harvesting.
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