Logging residue chipping options for short rotation poplar plantations

iForest: Biogeosciences and Forestry

article

Raffaele Spinelli¹  Matevž Mihelič⁴  Barnabáš Kováč⁵  Patrik Heger⁵  Natascia Magagnotti¹ 

[1] Consiglio Nazionale delle Ricerche, Istituto per la Bioeconomia - CNR IBE;Australian Forest Operations Research Alliance, University of the Sunshine Coast - AFORA USC;Forestry Research Institute of Sweden - SKOGFORSK;University of Ljubljana, Biotechnical faculty;IKEA Industry Sro

关键词: Forestry;    Efficiency;    Productivity;    Cost;   

DOI  :  10.3832/ifor4130-015

学科分类：社会科学、人文和艺术（综合）

来源: Societa Italiana di Selvicoltura ed Ecologia Forestale (S I S E F)

【 摘 要 】

Short rotation poplar plantations grow on flat and even terrain, and the interrow spacing is wide enough for easy machine access. If the terrain is firm enough, one may consider moving the classic roadside chipping operation directly into the field (i.e., terrain chipping), thus saving on wood extraction cost. This study compared the efficiency and cost of roadside and terrain chipping conducted with exactly the same equipment, to assess the benefits offered by the versatile deployment of a standard chipping operation, whereby the operation can be moved inside the stand whenever terrain conditions are suitable. The study was conducted at 12 sample plots, containing about one truck load of chips each (i.e., approximately 11 bone-dry tons or BDT). Plots were arranged as alternate windrows on a 8.5 ha field. Data was collected for the whole supply chain, from field to factory. The factory was located 14 km from the field. Delivered cost was 53 € BDT-1 and 70 € BDT-1 for roadside and terrain chipping, respectively, i.e., terrain chipping was 1/3 more expensive than roadside chipping, even if the latter included the additional cost of forwarding the residues to the roadside. The chipper-truck used for the test could not cope with small scattered residue piles (32 BDT ha-1), and the cumbersome reposition maneuver became the main hurdle to efficient operation. Further improvements might be achieved by pre-bunching the residues, introducing a dedicated terrain chipper or bundling the residues and taking the bundles to the factory for centralized chipping.

【 授权许可】

Unknown