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Forests 2017, 8(11), 415; doi:10.3390/f8110415

Impacts of Early Thinning of a Eucalyptus globulus Labill. Pulplog Plantation in Western Australia on Economic Profitability and Harvester Productivity

1
Australian Forest Operations Research Alliance (AFORA), University of the Sunshine Coast, Private bag 12, Hobart 7001, TAS, Australia
2
Australian Forest Operations Research Alliance (AFORA), University of the Sunshine Coast, 500 Yarra Boulevard, Richmond 3121, VIC, Australia
3
WA Plantation Resources (WAPRES), P.O. Box 444, Manjimup 6258, WA, Australia
4
Australian Forest Operations Research Alliance (AFORA), University of the Sunshine Coast, 35 Shorts Place, Albany 6330, WA, Australia
*
Author to whom correspondence should be addressed.
Received: 13 September 2017 / Revised: 30 October 2017 / Accepted: 30 October 2017 / Published: 1 November 2017
(This article belongs to the Special Issue Forest Operations, Engineering and Management)
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Abstract

The impact of the manipulation of plantation stocking density on individual tree size can affect final harvest costs and machine productivity. This paper investigated the impact of four early-age thinning treatments applied to a Eucalyptus globulus Labill. pulplog plantation in south-west Western Australia on economic profitability and harvester productivity. Eighteen sample plots were randomly laid out in the study area. The nominal 700, 500, and 400 stems per hectare (sph) plots were thinned to waste 3.2 years after establishment while the nominal 1000 sph (UTH) plots were left unthinned. The economic analysis showed that all thinning treatments resulted in a lower Land Expectation Value (LEV) and net financial loss over the full rotation at their theoretical optimal rotation age when compared with the unthinned control treatment. Tree growth and form were positively impacted by thinning. However, associated reductions in harvesting costs were less than the value losses resulting from reduced per hectare yield. View Full-Text
Keywords: land expectation value; thinning; Eucalyptus globulus; stocking density; harvesting productivity; Australia land expectation value; thinning; Eucalyptus globulus; stocking density; harvesting productivity; Australia
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Acuna, M.; Strandgard, M.; Wiedemann, J.; Mitchell, R. Impacts of Early Thinning of a Eucalyptus globulus Labill. Pulplog Plantation in Western Australia on Economic Profitability and Harvester Productivity. Forests 2017, 8, 415.

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