• Ohman, John H.
  Forest Service, USDA: North Central Forest Station
  
• Kaufert, Frank H.
  College of Forestry, University of Minnesota
  
• Allen, Russell M.
  Minnesota Forest Industries
  

The United States and Canada have different problems with respect to the utilization of their aspen resources. In the United States, aspen is more highly concentrated and its use, particularly in pulping, is well established and increasing. The present cut of aspen is roughly 50 percent of allowable cut, and within 30 years the allowable cut will probably double; growth and use will be in close balance by the encl of the century. This pattern of aspen use arises from the fact that in the regions where it is most abundant (Lake States) there is a diminishing supply of softwoods, and also a well-established and diverse pulp and paper industry. Compared with the United States, Canada has five times as much aspen and harvests less than half as much. Aspen resources are more widely spread; the cut is small and is not increasing appreciably. No change in this trend is anticipated in the near future. Even by the turn of the century, it is likely that less than half of Canada's annual allowable cut of aspen will be utilized. Present evidence points to the conclusion that most of the aspen in North America will be used for fiber products - pulp, paper, paperboard. fiberboard, and composition board. A mill complex utilizing aspen and softwoods is outlined