摘要
在云南省祥云县清华洞林场采用保山林场、古永林场和白马河林场 3片部省合建的云南松母树林种子营建子代展示林 ,以全省和当地商品种造林作对照 ,对 6年生的幼林进行早期观测分析表明 :云南松母树林具有较高的实际增益 ,保山林场、古永林场和白马河林场母树林树高的实际增益分别为 33 71%、 89 89%和 5 5 0 6 % ,地径的实际增益分别为 :- 5 6 0 %、 2 8 71%和 2 2 38%。
Comparing experiment of progeny demonstration forest of seeds from seed production stand of Pinus yunnanensis constructed by Ministry and Province in Baoshan Forest Farm, Guyong Forest Farm and Baimahe Forest Farm with that of seeds from local and whole Province was carried out in Qinghuadong Forest Farm of Xangyun County in Yunnan. After observation and analysis on young forest of 6 years, the results show that the seed production stand forest of Pinus yunnanensis has relatively great genetic increment. The height increment of seed production stands in Baoshan Forest Farm, Guyong Forest Farm and Baimahe Forest Farm are 33 71%, 89 89%, and 55 06% respectively, and those of ground diameter increment are -5 60%, 28 71%,22 38% respectively.
出处
《云南林业科技》
2000年第1期6-8,共3页
Yunnan Forestry Science and Technology
关键词
云南松
母树林
子代展示林
实际增益
选育
Pinus yunnanensis,seed production stand, progeny demonstration forest,genetic increment
