2022 Volume 21 Issue 2 Pages 145-151
The regeneration status of saplings was examined using statistical modeling in a mixed forest in Hokkaido, ten years after small-area scarification under the crown and artificial uprooting were conducted to facilitate regeneration following selection cutting. It was inferred that the effects of both operations on the presence of regenerated saplings were positive; namely, they made the presence probability higher. In addition, a deer-proof fence was considered to have increased the height of the understory vegetation with a probability of 90%. The total effect of the deer-proof fence on the presence of saplings was generally considered to be positive, even when the indirect effect of the fence via understory vegetation was considered. It was suggested that both of the operations, small area scarification under the crown and artificial uprooting, promoted the establishment of Betula maximowicziana.
