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1989年以来，先后从浙江临安、开化及湖南等地引进杉木优良家系25个，进行杉木少株小区试验（随机区组设计）和多株小区试验（对比法设计），并采用当地一般造林苗木和第1．5代良种苗作为试验对照，通过多年试验和观测统计分析，筛选出显著优于对照并适于本地区生长的51、37、55等11个平均遗传增益达43．15%的优良家系（其中51号家系遗传增益高达73．75％），并估算树高、胸径和村积的家系平均遗传力分别为43．82%、43．14％、42．12％，同时选出4棵优树用于建立采穗圃。
Since 1989, 25 fine Chinese fir families have been introduced from Zhejiang Lin’an, Kaihua and Hunan successively to carry out the experiment of small plant plot of Chinese fir (randomized block design) and multi-plot plot test (comparative design), and adopt the local general afforestation seedlings And the first generation of elite seedlings as a test control, through years of test and observation statistical analysis, screened significantly better than the control and suitable for the growth of the region 51,37,55 11 other average genetic gain of 43.15% (The genetic gain of family 51 was as high as 73.75%), and the average hereditary heritages of tree height, DBH and village were 43.82%, 43.14% and 42.12% Out of 4 trees for the establishment of mining spikes.