杉木成年树侧枝复壮苗造林的试验初报

用杉木成年树木侧枝经复壮处理的萌条扦插获得复壮苗木进行造林试验，结果表明：经复壮处理的萌条与同一树木的根颈萌条比较，成活率、苗木生长量、外观形态等无显著的差异。造林试验试验经连续4a观察，复壮苗木、扦插苗、实生苗在高生长、径生长上差异不显著，这表明用接根、埋干能使杉木成年树达到复壮的效果。

A Primary Study on Afforestation with Rejuvenating Seedlings from Upper Branches of Adult Cunninghamia lanceolata (Lamb.) Hook

Sprouts of the upper branches of adult Chinese fir can be rejuvenated by means of grafting the branches with young seedlings and burying the branchs with soil. The rejuvenated seedlings from the upper branches of adult trees were afforested, and the result showed that there were no difference between the rejuvenated sprouts and the sprouts from root at cut surface of the same clone in survive percentages of sprouts to be planted in soil, seedling growth and seedling morphology, and there is no difference among rejuvenated seedlings, sprouts seedlings and seed seedlings as well in height growth and diameter growth in four years. This means that the rejuvenating method for Chinese fir is very effective.