桤木

他给了约翰一些桤木树皮。

He gave john some alder bark .

PEG处理对两种桤木种子发芽的影响

The Impact of PEG Treatment on Seed Vigor of Two Alder Species

微波等离子体处理西南桤木表面的ESR和XPS分析

Study on Alnus nepalensis Surface Treated by Microwave Plasma with ESR and XPS

引种四川桤木CTMP制浆工艺及配抄新闻纸

CTMP of Alnus Cremastogyne & Pulping Process and Application to Newsprint

采用电子顺磁共振波谱（ESR）和X射线光电子能谱（XPS）技术，分析了微波等离子体处理前后西南桤木木材表面的性质。

Electron Spin Resonance ( ESR ) and X-ray Photoelectron Spectroscopy ( XPS ) were used to determine the surface properties of untreated / treated wood in this paper .

利用rep-PCR研究云南尼泊尔桤木根瘤内Frankia基因多样性

Genetic Diversity of Frankia Strains in Alnus nepalensis Nodules in Yunnan Revealed by rep-PCR

以台湾桤木Alnusformosana引种2年生苗木为研究对象，探讨了台湾桤木的光合生理生态特性。

The photosynthetic physio-ecological characteristics of two-years-old seedlings of introduced Alnus formosana were studied in this paper .

Cond随光照强度的增强而先呈上升趋势，且在相同PAR下，4年生四川桤木胞间CO2浓度（Ci）都大于9年生四川桤木。

Cond rised with light intensity increased , 4-year-old Alnus intercellular CO2 concentration ( Ci ) are greater than 9 years old ones at the same PAR .

不同桤木无性系间PAL活性、可溶性蛋白含量、过氧化物酶活性、木质素增长、纤维素增长、高生长、基径生长的差异程度；

The variation degree among the 6 clones in PAL activity , soluble-protein content , peroxide activity , lignin growth , cellulose growth , bight-growth , root-collar growth ;

红桤木（Alnusrubra）为非豆科共生固氮速生、先锋树种，主要分布在北美太平洋西北部。

As a lowland species , red alder ( Alnus rubra ) is most often observed along the northern Pacific coast .

两种林龄四川桤木蒸腾速率（Tr）与PAR呈正相关关系，4年生四川桤木Tr值都大于9年生四川桤木。

Both plantation transpiration rate ( Tr ) is positively correlated with PAR , Tr values of 4 years old Alnus are greater than 9 years old ones .

台湾桤木（Alnusformosana）原产台湾，是台湾地区重要的先锋造林树种和林地培肥树种。

Alnus formosana , originated in Taiwan Province , is an important pioneer afforestation tree in Taiwan and can fertilize forestry soil .

桤木（（Alnus）作为速生用材树种和水土保持树种，在湖南省已进行大面积的推广种植。

Alnus species ( spp. ), which are used as fast-growing timber and water and soil conservation tree species , are widely cultivated in Hunan province .

通过桤木根瘤的Frankia菌的纯菌制剂和悬液接种，进行砂培、土培和田间苗圃的幼苗接种试验，均取得较好的接种效益。

The inoculation experiments of seedlings resulted from sand , soil and nursery cultures were done by means of the pure Frankia preparation and the suspension inoculation , gaining better inoculation benefits .

利用rep-PCR指纹技术对云南5个地区的尼泊尔桤木根瘤内Frankia菌基因多样性进行研究，实验发现Frankia菌呈现丰富的基因多样性。

Rep-PCR technique was used to study the genetic diversity of Frankia strains in Alnus nepalensis collected from five regions in Yunnan . The fingerprint patterns revealed that Frankia strains had great genetic diversity .

PEG对红桤木种子的发芽率无影响，但能显著提高幼苗后期的抗水性，PEG浓度越高，幼苗抗性越强。

However , no significant effect of PEG was found on seed germination rate of red alder , but PEG could help red alder to improve the resistance to waterlogging significantly , and a trend was found that the higher the concentration of PEG treatment , the stronger the resistance .

台湾桤木引种气候生态适生区分析

Climatically and Ecologically Adaptive Regions for the Introduction of Alnus formosana

江南桤木种子休眠和萌发的初步研究

A preliminary study on Dormancy and germination of TRABECULATE alder seed

不同树龄桤木的原料特性分析

Characteristic Analysis of Alders at Different Grades of Wood - Ages

引种台湾桤木的蒸腾特性及其影响因子

Transpiration Characteristics of Alnus formosana introduced from Taiwan and their Influencing Factors

桤木碱法浆中金属离子的滞留性能初探

Retentivity of Metal Ions in Alkaline Pulp of Alnus Wood

桤木插穗不定根发生与发育的解剖学观察

The Origin and Development of Adventitious Roots in Alder Cuttings

不同温度条件下杉木、桤木和火力楠细根分解对土壤活性有机碳的影响

Effects of tree species fine ! root decomposition on soil active organic carbon

台湾桤木引种的光合生理特性研究

Study on the photosynthetic characteristics of introduced Alnus formosana

桤木叶量的初步研究

A preliminary study on the amount of alder foliage

西南桤木木塑复合材料处理工艺的研究

Study on Prepare Process for Alder Wood Polymer Composite

四川桤木根瘤主要氮素同化酶活力及其超微结构研究

Studies on the Main Nitrogen Assimilation Enzymes Activities and Nodule Cell Ultrastructure in

红桤木的苗高生长过程表现出慢-快-慢的节律。

The growth process of the annual seedling height of A. annual growth rhythm ;

桤木混交对杉木人工林大型土壤动物群落的影响

Effect of mixtures with alders on soil fauna in plantation forest of Chinese fir

你比桤木还要高挑和端庄。

More tall and stately that the alder .