white-alder (Almus incana Moohch.)是什么意思

网络释义

用法例句

Study on Water Conservation Capacity of the Mixed Plantations of Alnus cremastogyne and Cunninghamia lanceolata;

桤木杉木混交林水源涵养能力研究

Variation of Fruiting Quantity and Nut and Seed Characters of Alnus cremastogyne Clones;

桤木不同无性系结实量与种实性状变异

Preliminary Report on Selection of Alnus cremastogyne Provenances/Families;

桤木地理种源/家系选择试验初报

Study on the improved potential of fine pulpwood Alnus cremastogyne Burk;

桤木优良造纸材改良潜力研究

and Alnus cremastogyne Burk mixed forests.

对20a生杉木、桤木混交林丰产效果和机理进行研究,结果表明:混交林内桤木自然保存率低于杉木;杉木单株材积、单位面积材积分别大于桤木4。

The increasing evidence for the effect of mixtures indicated mixing alder(Alnus cremastogyne Burk.

　调查了中亚热带会同地区 13a生杉木纯林 (纯林 )和 8杉木 2桤木混交林 (混交林 )的大型土壤动物群落 ,并比较了两个林分在群落结构上的差别 。

The wood properties of alder is similar to that of poplar and birch which could be used to produce different kinds of pulp.

就桤木商用种植的生产潜力、制浆造纸和材性研究现状等进行综合评述。

The alder forest distributed in the hill and mountain region in the north and middle part of Sichuan Basin had a higher nodulation capacity generally.

桤木在四川盆地中北部山丘区,普遍具有良好的结瘤能力:单株五年生林木结瘤量40～160g(鲜重),十年生最佳达200g左右。

The selection of the tolerance drought superior families of pulpwood of Alnus cremastogyne;

四川桤木纸浆材耐干旱优良家系选择初探

Study on cutting techniques of superior trees of Alnus cremastogyne;

四川桤木优株扦插繁育技术初报

Study on the growth situation and adaptability of the introduction of Alnus cremastogyne in Hunan;

四川桤木引种湖南生长状况及适应性研究

Research on the Biological Character of A.sibirica and A.mandshurica;

东北桤木和辽东桤木生物学特性研究

Comparative Study on Wood Properities of Alnus Cremastogyne Burkill and Aluns Formosana Makino;

桤木与台湾桤木人工林木材性质比较研究

alder: tree of the birch family,usu growing in marshy places

桤木（桦木科,通常生长于沼泽地带）.

Status on Pulping/Papering Research of Alder and Prospect of Utilization of Alder Pulp Wood in China

桤木制浆造纸研究现状与我国桤木浆的开发利用

Water Holding Characteristics of Litter in Two Types of Alnus cremastogyne burk Plantation

对四川桤木和台湾桤木人工林枯落物持水特性研究

wood of any of various alder trees; resistant to underwater rot; used for bridges etc.

桤木属树木的木料，抗水蚀，用于造桥梁等。

A Preliminary Discussion on Effect of Artificial Inoculation on the Nodule Formation and Nitrogen Fixation of Alder

人工接种对桤木结瘤固氮的效应初探

A PRELIMINARY STUDY ON DORMANCY AND GERMINATION OF TRABECULATE ALDER SEED

江南桤木种子休眠和萌发的初步研究

Study on the Nodule Nitrogen Fixation Ability of Alnus nepalensis Secondary Forest in Ailao Mountain

哀牢山桤木次生林根瘤固氮能力研究

Study on Prepare Process for Alder Wood Polymer Composite

西南桤木木塑复合材料处理工艺的研究

Stand Biomass and Its Distribution of Mixed Forests of Alnus cremastogyne and Cunninghamia lanceolata

桤木×杉木混交林生物量及分布格局研究

The alder nitrogen fixation promoted growth of the after crop.

十年生桤木林采伐迹地上,桤木固氮改良土壤,并促进后续植物的生长.

laurel, viburnum and alder, great ferns

在一年的大部分日子里，月桂、荚莲、桤木、大蕨

The Origin and Development of Adventitious Roots in Alder Cuttings

桤木插穗不定根发生与发育的解剖学观察

A study of ecological geochemical warning of the forest soil in an alder plantation

人工桤木林林地生态地球化学预警评价研究

Study on Characteristic Variation of Half-sib Pollination Offspring of Alnus Formosana during Seedling Period

台湾桤木半同胞授粉子代苗期性状变异的研究

Morphological, Cytological and Molecular Biological Classification of Alnus Mill.and Osmanthus Fragrans (Thunb.) Lour.;

桤木和四川桂花的形态、细胞及分子分类学研究

Studies on Nodule Structure of Actinorhizal Plants and Photosynthetic Characteristics of Alnus Cremastogyme;

放线菌根瘤结构及四川桤木光合特性研究