EFFECTS OF INTENSIVE SILVICULTURAL TREATMENTS ON KRAFT PULP QUALITY OF LOBLOLLY AND SLASH PINE, 2002 Kraft Pulp Yield Anthology

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Intensive forest-management practices have been shown to greatly increase the growth rates of southern pines. A joint study was undertaken to evaluate the wood and pulp quality from fast-grown 14-year-old loblolly pine from the Piedmont and 17-year-old slash pine from the Coastal Plain. The properties were compared to 24-year-old plantation-grown controls. Three sets of chip samples, saw mill residual, top log, and whole stem, were prepared from each wood source. Two unbleached pulp grades, linerboard at kappa no. 90 and sack kraft at kappa no. 60, were prepared from each chip sample, and the pulp yields, fiber lengths, and handsheet properties were compared. A bleachable grade pulp, kappa no. 30, was also made and the pulp yields and fiber lengths measured.