Abstract
SYNOPSIS Company crew harvesting operations on Mondi Paper Company Ltd land in the highveld region, Transvaal, RSA, were studied from June to September 1990. Time studies were conducted to estimate production rates on the three operational phases: felling, skidding, and stacking. Production and cost estimates were used with the Auburn Harvesting Analyzer to simulate a harvesting system similar to the system observed in the RSA. Similar analyses were conducted for mechanised systems similar to those used in the south-eastern USA (SEUSA) to evaluate the potential for such systems in stands common to the RSA. Tree-length systems common to the SEUSA appear to have the potential to operate in the RSA at costs of up to 14% less per cubic metre than current RSA systems. Such a system could be less sensitive to increases in labor wages since it is 140% more productive per man hour. Wages for the SEUSA-style mechanised system could be 115%higher than current wages and still produce wood at a cost competitive with ...
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