桤木

Alnus formosana has an excellent form quality, and it have been able to bear fruit normally at 3.5 years old. Young trees of Alnus formosana demonstrated good characteristics of fast-growing and adaptable, but the growth and stability need to be extended tested.

引种的台湾桤木形质性状表现优良，3.5年生时已能正常开花结实，幼林显示了一定的速生特性和适应性，但后期的生长状况及稳定性还有待进一步观测。

Eight Alnus cremastogyne clones, which simulated with different concentration of sodium chloride, were measured with four physiological indexes, including SOD activity, MDA content, chlorophyll content and soluble proteins content.

以不同质量分数的盐胁迫对桤木Alnus cremastogyne 8个无性系，在盆栽条件下测定叶片中丙二醛质量摩尔浓度、超氧化物歧化酶活性、可溶性蛋白质量分数和叶绿素质量分数的变化。

An orthoganal design with four terrain factors under two levels was carried out to systematically analyze the law of variation on diameter, height and trunk's basic volume weight of 13-year-old Alnus cremastogyne from plantation.

摘 要：本文应用四个地形因子在两个水平下的正交试验设计方法，系统分析了13年生桤木人工林胸径和树高生长以及树干公定容重的变化规律。

Introduction experiment of Alnus formosana was carried out at various locations in guangdong. The results showed that the survival rate and the preservation rate of Alnus formosana were low in two points of Dalingshan state forest farm and Foshan Institute of Forestry Science, but its growth traits were good.

台湾桤木在广东省内不同地点引种试验结果表明，东莞大岭山林场和佛山市林科所试验点的造林成活率和保存率均偏低，但生长性状表现较好，4.5年生时，平均树高分别为6.72m、7.69m，平均胸径分别为5.28cm、6.37cm。

The results show that the leaf of Alnus cremastogyne is typical of bifacial leaf, the structural parameters of leaf among clones are very significant difference (P.01), of which the cuticle thickness varies most and the stoma density takes the second place, but cell tense ratio and spongy ratio and vein protuberant degree are comparatively stable.

结果表明，桤木叶为典型的异面叶，各无性系间叶片结构指标均存在极显著差异，其中角质层厚度变异最大，气孔密度次之，而叶片组织结构紧密度、叶片组织结构疏松度和叶脉突起度等比较稳定。

The root nodules were collected from twenty-two different geographical sites in Fujian. They belonged to four families Betulaceae, Casuarinaceae, Elaeagaceae and Myricaceae, including nine species of Alnus cremastogyne, A.

在福建的东山、厦门、南安、惠安、福清、福州、福鼎、武夷山、莱舟、上杭梅花山、长汀等11个县市的22个点，采集了木麻黄、杨梅、桤木和胡颓子4属9种的放线菌结瘤植物根瘤。

Between shrub and herb layers ,the difference of each index was not significant The total richness index and Shannon-Wiener index of Phellodendron amurense plantation community were all the highest than those of the other communities.(2) The total richness index of Machilus pingii- Quercus oxyodon evergreen broad-leaved forest community, Alnus cremastogyne-Betula luminifera-Quercus oxyodon evergreen-deciduous broad-leaved forest community and Rhus potaninii- Juglans sigillata- Quercus oxyodon evergreen-deciduous broad-leaved forest community all exceeded 31 .These communities , the dominance species in their shrub layers is Fargesia rufa ,such as Betula luminifera-Rhus chinensis-Quercus oxyodon evergreen-deciduous broad-leaved forest community, Quercus oxyodon-Litsea pungens-Cornus macrophylla evergreen-deciduous broad-leaved forest community, Cornus macrophylla- Acer caudatum var.

2润楠-曼椆常绿阔叶林、桤木-亮叶桦-曼椆常绿落叶阔叶混交林、青麸杨-野核桃-曼椆常绿落叶阔叶混交林群落的总体丰富度指数均大于31；在灌木层以青川箭竹为主的群落(亮叶桦-盐肤木-曼椆常绿落叶阔叶混交林、曼椆-木姜子-梾木常绿落叶阔叶混交林、梾木-川滇长尾槭-落叶阔叶林、川西樱桃-尾叶樱-川滇长尾槭落叶阔叶林)中，各群落总体丰富度指数和Shannon-Wiener多样性指数较小，总体优势度指数较大；8种次生林群落灌木层丰富度指数均高于乔木层，乔-灌层间丰富度指数差异性检验达显著水平；乔-草层间的丰富度指数差异性检验达极显著水平，Shannon-Wiener多样性指数差异达显著水平；灌-草层间的多样性指数和优势度指数差异性检验均达显著水平。

Betula, Quercus, Corylus, Alnus, Tsuga and a little amount of Pinus were ia little aggregation in the mountain slope near the marshland This is suggested to be caused by modern people's activity.

菊科。禾本科和莎草科等；在沼泽周围的山坡上，长有桦、栎，榛、桤木、铁杉等和极少量的松，冷杉仅以片状小群聚散居于附近的山坡上，这是近代人为活动干扰的结果。

Take dragonwort under the black alder

摘走黑桤木下的龙胆紫

A row of sunken dwarf willows borders the stream on one or both sides, while at a greater distance the meadow is skirted with maples, alders, and other fluviatile trees, overrun with the grape-vine, which bears fruit in its season, purple, red, white, and other grapes.

沿着溪流的一边或者两侧有一排沉入水中的矮柳，而稍远处，草甸则被枫树、桤木以及其他一些长在河里的树围绕着，葡萄藤则四处蔓延，一到结果实的季节，这里就会长出紫的，红的，白的以及其他各种葡萄来。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。