全球智库信息集成服务系统(G2TT): Potentials of possible machine systems for directly loading logs in cut-to-length harvesting.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1139/x2012-036
	Potentials of possible machine systems for directly loading logs in cut-to-length harvesting.
	Ringdahl O; Hellstroem T; Lindroos O
发表日期	2012
出处	Canadian Journal of Forest Research 42 (5): 970-985
出版年	2012
语种	英语
摘要	In conventional mechanized cut-to-length systems, a harvester fells and cuts trees into logs that are stored on the ground until a forwarder picks them up and carries them to landing sites. A proposed improvement is to place logs directly into the load spaces of transporting machines as they are cut. Such integrated loading could result in cost reductions, shorter lead times from stump to landing, and lower fuel consumption. However, it might also create waiting times for the machines involved, whereas multifunctional machines are likely to be expensive. Thus, it is important to analyze whether or not the advantages of any changes outweigh the disadvantages. The conventional system was compared with four potential systems, including two with autonomous forwarders, using discrete-event simulation with stochastic elements in which harvests of more than 1000 final felling stands (containing in total 1.6 million m3) were simulated 35 times per system. The results indicate that harwarders have substantial potential (less expensive on >=80% of the volume and fuel consumption decreased by >=18%) and may become competitive if key innovations are developed. Systems with cooperating machines have considerably less potential, limited to very specific stand conditions. The results conform with expected difficulties in integrating processing and transporting machines. work in variable environments.
主题	Ecosystems Services and Management (ESM)
URL	http://pure.iiasa.ac.at/id/eprint/9955/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129543
推荐引用方式 GB/T 7714	Ringdahl O,Hellstroem T,Lindroos O. Potentials of possible machine systems for directly loading logs in cut-to-length harvesting.. 2012.