The effects of different factors on the softwood stocking levels of clearcuts from the north-west of New Brunswick
University of New Brunswick
The study is based on a series of reproduction surveys conducted during the summer of year 1983 by Fraser Inc. on Crown Land clearcuts from the Kedgwick and Green River watershed. The objectives of different factors towards the softwood reproduction stocking levels of clearcuts. From the studied factors, the most determining factor was found to be the year during which a block had been harvested. This was mostly because of the ''age" of the clearcuts; older clearcuts tend to have higher stocking levels than most recent ones. The older ones in record, those for which the harvest-year was only known to be prior to year 1974 had the highest stocking levels (70%), while the 1981-clearcuts had the lowest (32%). For their relatively young age, the 1979-clearcuts had a high stocking level (62%). The precut stand type was found to be the second most determining factor. The different aspects of the slopes, the particular location of the clearcuts, and the two precut stand maturity-groups involved were of low importance. Most clearcuts had been harvested by the conventional system (tree-length with cable skidders).