杉木速生,材质优良,加速杉木发展,极为重要。为探求杉木速生丰产技术,缩短成材时间,我们于1979年用杉木优良无性系作接穗进行了嫁接造林试验。现仅将四年来观测结果整理如下.一、林地概况及嫁接方法1.试验地概况试验地位于林科所内六梢点,属低山丘陵,下坡近山脚海拔320米, Chinese fir fast, good material, accelerate the development of fir, is extremely important. In order to explore fast-growing and high-yield fir technology, shorten the time to timber, we use the elite clones of scion in 1979 for grafting afforestation. Now only four years of observations are collated as follows.A overview of the woodland and grafting methods 1. Experimental site The experimental site is located in the Lincoln six tips, is a hilly, downhill near the foot of 320 meters above sea level,