DefinePK

Abstract

ABSTRACT This study describes in three parts the results of investigation on wood and pulping properties of Chir pine from natural forests in Hazara region of Pakistan at laboratory and pilot scale. Tests were conducted to examine the effect of tree age and the presence of resin in Chir pine wood on its pulping characteristics. Physical, anatomical and chemical properties of wood samples from 15 trees of three age groups were determined in the standard manner. Considerable variation was observed within individual trees as well as between trees of different age groups in moisture content, bark percent, latewood percent, wood specific gravity, fibre lengthy and diameter, extractives contents. Trees of 36 - 45 year age were found to have most suitable wood quality for pulping purpose as compared to those of lower and higher age groups.