The experiment was carried out to investigate the growth rhythm of tree trunk by trunk analysis between natural forest and man-made forest of Taxus chinensis var. mairei. Results showed that man-made forest of Taxus chinensis var. mairei was easy to form the forest with tree height growing rapidly in the preliminary stage, and big diameter at breast height growth. Natural forest volume significantly increased, and presenting regular increasing trend with the increase of tree age. Thus, iTaxus chinensis var. mairei could be used as a precious timber forest to promote the cultivation.

In order to improve Taxus wallichiana var. marirei nursery germination rate and to promote their growth and development, intend using different mulching materials、different base fertilizer, different levels of shading, seedling-transplanting and other planting method to comparison the growth development quality of T. wallichiana var. marirei, draw the key technologies of the best nursery is Seedlings mattress yellow soil,covered yellow soil after sowing, then covered moss again, 4 000 kg/667 m2 1 ∶ 1 ratio of rotting pig dung and 100 kg fertilizer(N: 15%, P: 10%, K: 15%, point Nutrient ≥ 40%), levels of shading on 85%, and so on, can improve the growth development quality obviously.

In order to meet the demands for Taxus wallichiana var. marirei seedlings, the cutting propagation technology of T. wallichiana var marire was studied by applying different types of cutting matrix and concentrations of hormone auxin cultivated in different cutting medium. The results show that the every rooting indexes of the cuttings were improved significantly after treated, for example, the cuttings were treated with indole butyric acid potassium salt 8 g/kg(liquid state) + hormone Dayton 38g/kg(solid state) for 10 seconds, the effect was the optimal, the average rooting rate was 87.63% and the average root volume reached 38.87 cm3, the rooting number and rooting length also reached their maximum values; when comparing different cutting matrix, the optimum formulation was a combination of 70% sand and 30% yellow soil matrix, resulting an average rooting number of 21.67 and a rooting rate of 72.22%, the rooting number and rooting rate both reached the maximum.

<正>在东安县舜皇山森林公园主峰下的西面山坡、山窝、山沟的原始阔叶林中,挺生着一种树干通直圆满、高大挺拔、叶似杉叶、果似松果的高大乔木,当地居民叫它野杉树,学名叫资源冷杉。它生长在舜皇山海拔1500～1850米之间,散生于阔叶林中,树冠高耸于阔叶林层之上。主要伴生树种有亮叶水青冈、多脉青冈、华南桦、银木荷、红花木莲等,林下多生长茂密的南岭箭竹、观音竹。

通过对应用厚朴与日本落叶松混交模式在高寒山区的不同地类、不同坡位和坡向造林后三年生幼树生长情况调查分析。结果表明:造林地类、坡位和坡向等因子对造林成活率、幼树的高生长和地径粗生长影响显著。在造林地类中,以坡耕地造林的幼树生长明显优于荒山荒地的;在荒山造林中,坡位和坡向对幼树的生长产生显著影响,在阴坡的山下部环境中厚朴生长最好,阳坡的中、下部环境中日本落叶松生长效果最好,其它坡向坡位次之。