S. Ackerman

发表

The effect of tree and harvester size on productivity and harvester investment decisions

S. Ackerman, Astrup Rasmus, Talbot Bruce, 2021, International Journal of Forest Engineering.

Multi-Product Forwarder-Based Timber Extraction: Time Consumption and Productivity Analysis of Two Forwarder Models Over Multiple Products and Extraction Distances

P. Ackerman, S. Ackerman, Kayla Gagliardi, 2020 .

Skills development of mechanized softwood sawtimber cut-to-length harvester operators on the Highveld of South Africa

P. Ackerman, S. Ackerman, Kayla Gagliardi, 2020, International Journal of Forest Engineering.

Diesel Consumption and Carbon Balance in South African Pine Clear-Felling CTL Operations: a Preliminary Case Study

C. Nati, P. Ackerman, S. Ackerman, 2017 .

Effect of slope on productivity and cost of Eucalyptus pulpwood harvesting using single-grip purpose-built and excavator-based harvesters

P. Ackerman, S. Ackerman, Chad Martin, 2018 .

Harvesting and extraction impacts on Eucalyptus grandis × E. urophylla coppicing potential and rotation-end volume in Zululand, South Africa

A. Mcewan, K. Little, S. Ackerman, 2017 .

Effects of irregular stand structure on tree growth, crown extension and branchiness of plantation-grown Pinus patula

T. Seifert, P. Ackerman, S. Ackerman, 2013 .

The effectiveness of a small-scale combination harvester/forwarder in industrial plantation first thinning operations

P. Ackerman, S. Ackerman, Heather McDermid, 2021, International Journal of Forest Engineering.

Mechanised Pine Thinning Harvesting Simulation: Productivity and Cost Improvements as a Result of Changes in Planting Geometry

Thomas Seifert, Stefan Seifert, Pierre Ackerman, 2016 .

The effect of irregular stand structures on growth, wood quality and its mitigation in operational harvest planning of Pinus patula stands

Simon Alexander Ackerman, S. Ackerman, 2013 .

Multi-Product Forwarder-Based Timber Extraction

Pierre Ackerman, Kayla Gagliardi, Simon Ackerman, 2020 .

A comparison of two methods of data collection for modelling productivity of harvesters: manual time study and follow-up study using on-board-computer stem records

Bruce Talbot, Helmer Belbo, Pierre Ackerman, 2018 .

Productivity and workload analysis between manual and motor-manual pruning of Pinus patula at two different lifts

Pierre Ackerman, Zimbili Bonisiwe Sibiya, Simon A Ackerman, 2021, International Journal of Forest Engineering.