The survival rate gets higher when the coat is applied to picea asperata mast.
使用该材料后云杉树苗成活率得以大幅度提高；
Picea is not only major natural forest resources in Qinghai, but also fine tree species of afforestation and urban greening.
云杉是青海省县主要的天然林资源，也是荒山造林和城镇绿化的优良树种。
Through indoor inoculation test on seedlings of Picea koraiensis, 6 ectomycorrhizae fungi cultures were obtained from 36 isolaters.
经对红皮云杉室内接种试验获得6个可与红皮云杉共生形成外生菌根的菌株。
Besides, pollen of Abies, Picea, Pinus, Tsuga, Betula, Ericaceae, Labiatae and Cyperaceae and spores of Pteris, Polypodium and Selaginella were also observed.
此外，有冷杉、云杉、松、铁杉和桦等属乔木花粉和杜鹃科、唇形科、莎草科灌木和草本植物花粉及凤尾蕨、水龙骨、卷柏等属孢子。
Picea and abies forests in Taohe forest region have been investigated in order to find out the laws governing their structure, growth, rejuvenation and succession.
在对洮河林区云杉、冷杉林分调查研究的基础上，探讨现实林分的结构、生长、更新、演替等规律。
According to the grade similarity and significance of difference of the productivity, we make cot the planting district of Picea Kdreainsis, and give out the hydro-thermal index.
对其可靠性和精度进行了分析和检验，根据生产力等级相似性和差异显著性原理，进行了栽培区划，给出各栽培区、亚区的水热特征临界值指标。
Abstract : The purpose of this study was to determine the total flavonoids and dihydroquercetin contents in Picea asperata Mast. , and to further investigate its antioxidant activity.
摘要 ：本试验测定云杉总黄酮及其二氢槲皮素的含量，研究其抗氧化活性，为后期云杉黄酮的进一步研究提供部分理论依据。
The size structure and distribution pattern of Picea mongolica population on sand dune and their rerlationship to eco-environment are studied by size structure in place of age structure.
本文用种群大小结构代替年龄结构研究了沙地云杉种群的大小结构、分布格局和动态规律。
The biological and ecological characteristics as well as habitat condition of Picea sitchensis have been briefed; meanwhile the study direction of its species introduction has been advanced.
简要介绍了西加云杉的生物生态学特性及其生境条件，并提出了该树种引种的研究方向。
The biological and ecological characteristics as well as habitat condition of Picea sitchensis have been briefed; meanwhile the study direction of its species introduction has been advanced.
简要介绍了西加云杉的生物生态学特性及其生境条件，并提出了该树种引种的研究方向。
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