Title: Cost and productivity of new technology for harvesting and in-woods processing small-diameter trees.
Author: Lambert, Michael B; Howard, James O.;
Source: Res. Pap. PNW-RP-430. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 44 p
Publication Series: Research Paper (RP)
Description: A study was conducted on the productivity and cost of an integrated harvesting and processing system operating in small-diameter timber (western hemlock-type) on the Olympic Peninsula of western Washington. The system uses a new steep-slope fellerbuncher, a clam-bunk grapple-skidder (forwarder), a prototype chain-flail debarker delimber, a chipper, a conveyor system, and a prototype shredder. The study showed that the system harvested and processed trees at a combined-system cost of $7.80 per green ton at a production rate of 455 green tons per day. The delivered product mix was 53 percent chips, 21 percent saw logs, and 26 percent hogged fuel by weight. The productivity and machine rate of each piece of harvesting and processing equipment and other data are given.
Keywords: logging, whole-tree harvesting, feller-buncher, intensive harvesting, utilization, integrated harvesting, in-woods chipping, small-tree harvesting
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Lambert, Michael B; Howard, James O. 1990. Cost and productivity of new technology for harvesting and in-woods processing small-diameter trees. Res. Pap. PNW-RP-430. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 44 p
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility