1) broad leaved ancient tree
阔叶古树
1.
Natural distribution and growth regulation of broad leaved ancient trees in Shanxi Province were systematically studied on breeding.
对山西省阔叶古树基因资源的自然分布和生长规律进行了系统的育种学研究,从宏观上首次揭示了不同古树树种历经几百年或上千年的历史变迁而保存下来的内在生长遗传规律。
2) hardwood
[英]['hɑ:dwʊd] [美]['hɑrd'wud]
阔叶树材
1.
This paper deals with the minute structures of 34 species, 28 genera and 19 families from the main hardwoods in Hunan Province.
对湖南 19科 2 8属 3 4种主要阔叶树材的微观构造进行了研究 。
2.
To study the abrasion behavior of high speed milling tools,the author selected a widely-used TiAlN coated tool to mill three commercial hardwood samples.
基于涂层刀具的摩擦学机理,以福建青冈、米槠、泡桐等阔叶树材为代表,进行氮铝钛(TiAlN)涂层刀具高速铣削的试验。
3) Broadleaved tree
阔叶树
1.
The BCTMP properties of 4 kinds of Broadleaved trees of Alniphyllum fortunei,Michelia macclurei,Castanopsis carlesii and Sapium discolor have been studied and analyzed and the results show that all these species possess the better pulping adaptivity.
对拟赤杨、火力楠、米槠、山乌桕等 4种阔叶树进行BCTMP制浆、打浆强度分析、漂白工艺研究、与硫酸盐木浆配抄强度比较及黑液分析 ,结果表明 ,拟赤杨、火力楠、米槠、山乌桕等 4种阔叶树具有较好的制浆适应
4) broadleaved tree species
阔叶树种
1.
The gas exchange and chlorophyll fluorescence parameters in leaves of eight broadleaved tree species including Magnolia liliflora Desr.
在自然条件下,测定了8种阔叶树种叶片的气体交换参数和叶绿素荧光参数并对其进行比较。
2.
The results showed that the growth differences of various broadleaved tree species were great at the early stage,the early growth of Choerospondias axillaris and Betula luminifera was fastest,that of Michelia macclurei,Liriodendron chinense,Manglietia yuyuanensis,Liquidambar formosana, and Castanopsis fargesii came second,that of Tsoongiodendron odorum,C.
利用设置在福建省建瓯市的闽北乡土阔叶树种试验示范林测定材料 ,研究其早期生长表现差异、对立地的反应敏感性及与立地互作等。
3.
The results show that there is an evident difference between stand growth of various broadleaved tree species,which shows as Choerospondias axillaris>Liriodendron chinense>hybrid L.
对不同阔叶树种和不同混交林模式的林分生长状况进行测定 ,结果表明 :不同阔叶树种的林分生长存在明显差异 ,表现为南酸枣 >马褂木 >杂种马褂木 >桤木 >观光木 >木荷。
5) broad-leaved tree
阔叶树
1.
One-year old seedlings of six broad-leaved tree species,Michelia macclurei,Castanopsis fissa,Castanopsis sclerophylla,Castanopsis kawakamii,Cyclobalanopsis myrsinaefolia and Castanopsis lamontii,were separately planted under 25-year-old Masson s pine plantation,and developed into different closed mixed forests after 16 years.
在25 a生的马尾松林下分别套种火力楠、闽粤栲、苦槠、格氏栲、青栲和拉氏栲等阔叶树种的1 a生幼苗,16年后形成郁闭的针阔混交异龄林。
2.
A quantitative analysis of the growth of moso bamboo(Phyllastachys pubescens)in the mixed forest of moso bamboo and evergreen broad-leaved trees and their competition were studied.
以人为干扰较少的竹阔混交林为研究对象,对竹阔混交林中毛竹Phyllostachys pubescens空间分布以及阔叶树对毛竹生长影响及竞争进行了定量分析研究。
6) broadleaf tree
阔叶树
1.
In the middle and lower reaches of Xijiang river,32 species of broadleaf tree were planted in the experiment in order to select the excellent ones for ecological forestation.
在西江中下游,对32个阔叶树种进行造林生长比较试验,4年生林木调查结果表明:不同树种间的造林保存率存在着明显的差别,除幌伞枫、秋枫、凤凰木、小叶杜英、木棉、鸭脚木保存率较低外,其余树种保存率都较高,达93%以上;树种间树高、胸径、冠幅生长量差异均达到极显著水平,且各性状之间的相关均达到极显著水平,西南桦、红胶木、黎蒴、红荷木、红椎、荷木、锥栗、仪花、樟树、火力楠、蒲桃在树高、胸径、冠幅生长上都表现较好,青梅、小叶杜英、腊肠树、猫尾木、秋枫、木菠萝都表现较差。
2.
Description was made on establishment and management of broadleaf tree seed base in Linhai,Zhejiang province by selection of target tree species,road designing,tendering and thinning,production designing and implementation.
从目的树种选择、林道规划设计、林分抚育间伐、生产经营设施规划与建设几方面总结了临海市阔叶树采种基地的营建与管理技术,指出建立采种基地的关键是选择好目的树种,并且要依立地条件和不同树种而选用不同的经营方式。
3.
This paper had studied on physiological moisture characteristic of yearling tree seedlings at seedling stage of four broadleaf tree species of Gleditsia japonica Miq, Albizia julibrissin Durazz,Cornus controrersa Hemsl and Buxus microphylla Sieb.
对皂角、合欢、灯台树、黄杨4种阔叶树种一年生播种苗的苗期水分生理特性进行研究,结果表明,4个树种的叶片鲜重含水量在73%～81%之间,各树种的抗旱能力依次为黄杨>合欢>皂角>灯台树;对各树种蒸腾强度的测定结果表明,皂角、灯台树蒸腾强度日变化为双峰曲线,黄杨、合欢为单峰曲线;通过测定皂角、合欢裸根苗的叶和根的水势,进一步证明了合欢的抗旱性强于皂角。
补充资料：常绿阔叶落叶阔叶混交林
出现于亚热带和暖温带的过渡带或亚热带山地常绿阔叶林上界的森林植被类型。由常绿阔叶树和落叶阔叶树混合组成。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条