桤木
- alder;tag alder;arn
![桤木](../cache/1170873.jpg)
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他给了约翰一些桤木树皮。
He gave john some alder bark .
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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
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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
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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
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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 .
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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
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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 .
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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 .
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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 ;
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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 .
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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 .
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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 .
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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 .
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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 .
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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 .
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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 .
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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
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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
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不同树龄桤木的原料特性分析
Characteristic Analysis of Alders at Different Grades of Wood - Ages
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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
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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
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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
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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
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台湾桤木引种的光合生理特性研究
Study on the photosynthetic characteristics of introduced Alnus formosana
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桤木叶量的初步研究
A preliminary study on the amount of alder foliage
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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
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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
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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 ;
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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
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你比桤木还要高挑和端庄。
More tall and stately that the alder .