1) Alnus cremastogyne
桤木
1.
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
2.
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
3.
Preliminary Report on Selection of Alnus cremastogyne Provenances/Families;
桤木地理种源/家系选择试验初报
2) alder
[英]['ɔ:ldə(r)] [美]['ɔldɚ]
桤木
1.
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 。
2.
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。
3.
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。
3) Alnus cremastogyne Burk
桤木
1.
Study on the improved potential of fine pulpwood Alnus cremastogyne Burk;
桤木优良造纸材改良潜力研究
2.
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。
5) alnus cremastogyne
四川桤木
1.
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
2.
Study on cutting techniques of superior trees of Alnus cremastogyne;
四川桤木优株扦插繁育技术初报
3.
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
6) Alnus cremastogyne Burk
四川桤木
1.
Study on photosynthetic physiological characteristics of four improved Alnus cremastogyne Burk pedigrees;
4个四川桤木品系的光合生理特性研究
2.
Tests on the pruning and fertilization of clonic scion pluching nursery of Alnus cremastogyne Burk;
四川桤木无性系采穗圃修枝与施肥试验初报
3.
A Study on the Phenotypic Diversity of Fruits of Natural Populations of Alnus cremastogyne Burk in Sichuan
四川桤木天然群体果实表型多样性研究
补充资料：桤木
| 桤木 Alnus 桦木科桤木属植物的通称。又称赤杨。共40余种，分布于亚洲、非洲、欧洲及北美洲。中国有7种1变种，分布于东北、华北 、华东 、华南 、华中及西南 。材质轻软 ，为水工、坑木、建筑等用材；树皮、果实提制栲胶；叶作饲料或沤肥；根系发达，耐水湿、具根瘤，是护岸固堤、改良土壤的树种，也是优良的用材树种和薪炭材树种。桤木为落叶乔木或灌木。单叶互生 ，具叶柄 ， 叶缘锯齿或浅裂 ，稀全缘 ，托叶早落。花单性，雌雄同株。总状或圆锥状花序。果序球果状，每个果苞内有2枚小坚果。桤木喜光，幼树稍耐荫 。对水湿和肥力要求较高。萌芽力强，生长迅速。根具根瘤菌，有改良土壤的作用 。种子极小 ，可用条播或撒播 。一年生苗高1米可出圃造林。因有固氮能力宜选作混交树种。 |
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参考词条