The area under survey comprised 292 planted seedlings.
At the time of planting, seedlings of the heights ranging from
40 mm to 100 mm dominated. The dying away first of all concerned
the seedlings smallest in size, and the number of dead
seedlings decreased alongside the growing height of seedlings.
In total, 90% of the planted seedlings survived after the
first vegetation season. The seedlings in the area under survey
attained the average increase of 31 mm in height in the