您要查找的是不是:
- Rotation of picea asperata for pulpwood was tentatively determined as 25 year. 初步认为云杉纸浆材培育周期为25年。
- Advances in Genetic Improvement of Spruce in Abroad and Breeding Strategies of Picea asperata Mast. 国外云杉遗传改良现状和粗枝云杉育种策略。
- Effects of Shade and Exogenous Abscisic Acid (ABA) Application on the Drought Tolerance of Contrasting Populations of Picea Asperata Mast. 遮荫与外源脱落酸喷施对粗枝云杉(Picea asperata Mast.;)不同种群抗旱性的影响
- On the basis of a comprehensive analysis four different provenanceareas have been divided for woodpulp stands of Picea asperata. 经过综合分析,在四川省将粗枝云杉纸浆材种源林分划分为4个种源区。
- Picea asperata Mast. [医] 云杉
- Phyllobius sp. of Picea asperata 云杉树叶象
- Natural forest of Picea asperata 云杉天然林
- A Study on Division of Provenances as Woodpulp Stands of Picea Asperata 粗枝云杉纸浆材种源林分区划研究
- Study on Phenotypic Diversity of Natural Population in Picea asperata 云杉天然群体表型多样性研究
- Effects of water supply on the growth and eco-physiology of seedlings of the dragon spruce Picea asperata Mast 不同施水量对云杉幼苗生长和生理生态特征的影响
- Division of Forest Stand Type of Picea Asperata Mast and Its Countermeasures for Management in Great xing'an Mountains 大兴安岭云杉林分类型划分及经营对策
- Studies of the Pathogen and Alternative Host of Picea asperata Mast and Picea crassifolia Kom 粗枝云杉、青海云杉叶锈病病原及转主寄主研究
- Sustainable Management of Picea asperata Mast.Forest in the Greater Xing'an Mountains 大兴安岭云杉林可持续性经营对策的研究
- Quantitative classification of site condition in natural forest of Picea asperata 云杉天然林分生境条件数量分类研究
- Assessment of site condition quality of the natural forest of Picea asperata by multi-factor quantitative analysis 云杉天然林分多因素数量化生境质量评价研究
- Genetic differentiation and Provenance Division of Natural Population in Picea asperata 云杉现有天然林的遗传分化和种源区划分
- Variation in Characteristics and Their Selection Potentials of Plus Trees Among Natural Stands of Picea asperata 粗枝云杉天然林优树性状变异及选择潜力
- A preliminary study of the effect of different site conditions on the growth of artificial Picea asperata forest 不同立地条件对粗枝云杉人工林生长影响的初步研究
- Variations in characters of plus trees in natural stands of picea asperata and definition of elected standards 粗枝云杉天然林优树的性状变异特征与选择标准划分
- Dynamics of biomass and stem volume of Picea asperata stands in artificial restoration process of subalpine coniferous forest 亚高叶针叶林人工恢复过程中生物量和材积动态研究