Conduct board manufacturing experiments on cleaved bark slat of Chinese fir by PSL method to test its mechanical properties, analyze board manufacturing parameters and choose better techniques.
对杉木边皮劈制的木条进行PS L法制板试验，测试其物理力学性能，分析了制板参数，选择了较佳的工艺。
Finally, a general discussion on properties of the polymorphic site index curve equation for Chinese fir was made.
最后讨论了本文所用的杉木多形地位指数曲线模型的一些特性。
The first grade forecast of seed crop in 1990 was also made for Shandou seed Orchard of Chinese fir.
本文还对山斗杉木种子园1990年的产量年景作了第一级预报。
The number of microbes and enzyme activities in the rhizosphere and bulk soil of Chinese fir were analysed.
本研究测定了浙江省一些林场内杉木林地杉木根际和非根际土壤的微生物数量和酶活性。
This is possible to be an important cause for degradation of most Chinese fir ecosystems.
这可能是大多数杉木人工林生态系统发生严重退化的一个重要原因。
The accumulation quantity of litter of Chinese fir forest and its undergrowth plant at different site indices and forest ages also existed obvious difference.
不同地位指数和不同林龄杉木及其林下植物的凋落物积累量也存在明显差异，杉木凋落物积累量随林龄的增大而增加。
Genetic variations on tracheid microfibril Angle of 55 Chinese fir clones were investigated.
对55个杉木无性系管胞微纤丝角的遗传变异进行了研究。
Representative mixed plantations A, B of Cyclocarya paliurua Ilinsk and Chinese fir and pure stand of Chinese fir in Xiqin Experimental Forest Farm were selected, and their biomass was determined.
在西芹林场选择有代表性的青钱柳、杉木混交林A、B两种和杉木纯林，进行生物量测定。
Genetic control of traits for Chinese fir clones.
杉木无性系性状的遗传控制。
By using orthogonal design, this paper systematically analysed the variation law of fiber morphology of Chinese fir wood from plantations with different ages, densities and growing sites.
应用正交试验设计方法，系统分析了不同林龄、不同立地条件和不同林分密度下人工杉木林木材纤维形态的变异规律。
Forest growth in relation to variation of soil properties variety in Chinese fir forest soils derived from granite with different preceding vegetation in Lishui region of Zhejiang Province.
重点论述浙江省丽水地区花岗岩立地条件下不同前茬的杉木林的土壤性质变化及其与林木生长的关系。
Activated carbon was prepared from Chinese fir sawdust by chemical activation using zinc chloride under vacuum condition.
以杉木屑为原料，采用氯化锌活化法，在真空条件下热裂解制备了活性炭。
Under conventional conditions the dyeing technology of fast growing Chinese fir was studied by a series of single factor experiments and multi factor orthogonal experiments.
通过系列化单因素试验和多因素正交试验，研究常规条件下速生杉木染色工艺及工艺参数对木材染色效果的影响。
This paper studies the short rotation and the regeneration techniques of Chinese fir plantation with the age of 14 years in Guangdu, Fenghua, Zhejiang.
本文研究了奉化市尚田镇广渡村的1片14年生杉木人工林分的短轮伐期与更新技术。
The essential oil volume was 1.57% and 0.02% extracted from Chinese fir and Eucalyptusgreen wood, respectively, by steaming distillation method.
采用水蒸汽蒸馏法，获得杉木生材精油的得油率为1.57%，尾叶桉生材精油的得油率为0.02%。
Therefore, the more integrated diagnosis indices of Chinese fir seedlings were obtained by combining the two methods.
这两种方法相结合得到了一个较完整的杉苗营养诊断指标体系。
The basic law of the provenance of Chinese fir on geographic position was first studied by the artificial neural network in this paper.
本文首次运用人工神经网络研究杉木种源与地理位置之间的内在规律。
The inherent law for dividing the type areas of Chinese fir is brought to light.
从一个重要方面揭示了杉木种源区划分的内在规律，为该课题的综合研究。
There were two sets of two level diallel cross experiments at the level of provenance and individual in Chinese fir which were analyzed in this paper.
对两套杉木亲本在种源和个体两水平的双列杂交试验进行了遗传分析。
China's guizhou 9 th 2011's door was drifting quarter cup in the grand opening of Chinese fir river bingham.
中国贵州2011年第9届威门杯漂流节在施秉杉木河隆重开幕。
Tea-oil tree~. Chinese fir and poplar wcre tested to determine whether nitrogen fixation occurred in these woody plants.
以油茶、杉木、杨树为研究对象，探讨木本植物根际联合固氮体系。
Therefore, compare to Mongolian Scots pine, Chinese fir has better performance in field test.
因此，与樟子松相比，杉木在野外埋桩试验中表现更好。
The fauna of spruce, pines and Chinese fir branch-shoot pests were studied.
研究了云杉、松树及杉木等树种枝梢害虫的区系。
Oil-absorptive material from Chinese fir thinnings are developed and its absorptive effects are also studied.
研制出了杉木间伐材炭化物吸油材料，同时对其吸油能力的影响作了研究。
Oil-absorptive material from Chinese fir thinnings are developed and its absorptive effects are also studied.
研制出了杉木间伐材炭化物吸油材料，同时对其吸油能力的影响作了研究。
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