树种

词组短语

varieties of trees · seeds of trees

与树种相关的网络例句 [注：此内容来源于网络，仅供参考]

Also it synthesize the natural law on vegetation distribution and the present situation on urban forestry construction to define the main proportion on urban species actually:the proportion between aiphyllus tree and deciduous tree is 3:7; the proportion between arbor and shrub is 2:1; the proportion between coniferous tree and broadleaf tree is 1:4; the proportion between fast-growing trees and slow-growing trees is 1:1.The following tree species programmed in urban forestry construction of Qingdao on the above-mentioned demanding on trees planning in this thesis

本文以上述提到的树种布局规划要求，分别规划出了青岛市城市森林建设中的行道树种、公园绿化树种、游园、街头绿化树种、山地风景林树种、居住区绿化树种、机关、学校、医院等处的绿化树种、工矿区绿化树种、海岸抗海雾、海风树种、耐盐碱树种、垂直绿化树种、地被植物，并对城市森林的近自然化配置，以及在天然森林已不存在的地方，运用技术模拟原来的天然森林进行恢复和重建进行了初步阐述。

On the base of the principal factors selected from natural, social and economical conditions in Shenyang, 230 varieties virescence plants are analyzed and ranked, the paper picks out diaphysis trees, basic trees, ongoing expansion trees, adequately retained trees and selective trees from them, and the selection and adjustment program of basic trees and diaphysis trees.

在此基础上，采用园林专家咨询评价的方法，结合前人的研究成果及园林工作的实践总结，从生态适应性、观赏性、生态效能等方面全面系统的建立了沈阳市绿化植物的评价应用的综合指标体系，并根据沈阳市的自然条件和实际情况确定了主要的指标因子对沈阳市常见的230种绿化植物进行了综合评判和分级，筛选出最适宜的骨干树种和适宜的基本树种及宜继续推广的、可适当保留的或应淘汰的种类，提出了沈阳市绿化基调树种和骨干树种选择和调整的方案。

That is to say, the cold resistance of these trees were close.But the difference of the semilethal temperature of the trees in the end of Dec.2003 was remarkable(-9.86～-13.48℃). The difference of the cold resistance of different tree species raised by exer-cise in winter.

月初采样树种的半致死温度相差不大(-5.03～-6.08℃)，即未经低温锻炼时，6个树种的抗寒能力相近；而12 月底采样树种的半致死温度相差较大(-9.86～-13.48℃)，即经低温锻炼后，6 个树种的抗寒性差距增大。

Kaizuca, Camellia japonica L.,Ginkgo biloba L., Celtis sinensis Pers., Zelkova schneideriana Hand.-Mazz., Acer truncatum Bunge, Albizia julibrissin Durazz., Ailanthus altissima Swingle, Cerasus serrulataG.,Pistacia chinensis Bunge, Euonymas japonicus Thunb.Sabina konarovii Chent at W.T.Wang, Sabina chinensis cv.Pfitzeriana. 3.Tree planning on urban forestry construction of Qingdao city is based on trees investigation,analyses, appraise and under the guidance of the theories on city ecology, ecological landscape, scenic aesthetics, city planning and etc.

青岛市城市森林建设的树种近自然化规划：树种布局规划应以树种调查、分析、评价为基础，以城市生态学、生态园林学、风景美学、城市规划学等理论为指导，并综合青岛市所在植被分布自然规律和城市森林建设现状，因地制宜的确定城市树种的主要比例关系：常绿树与落叶树的比例以3：7为宜；乔木与灌木的比例以2：1为宜；针叶树与阔叶树的比例以1：4为宜；木本植物与草本植物之比1：4；速生树与慢生树的比例以1：1为宜。

Based on the status of suburban forest of Harbin, 49 well-grown afforesting tree species including 32 species arbor, 16 species shrub and only 1 species vine which are mainly Pinus sylvestris var. mongolica, Betula platyphylla, Syringa oblata and Acer negundo et al, were selected in this study. An information system concerning tree species was established by sorting qualitative index, testing quantitative index as well as referring to other study results.

本论文从哈尔滨市城郊林种现状出发，选择了在哈尔滨地区生长良好的樟子松、白桦、紫丁香、糖槭等49种绿化树种，其中乔木树种32种，灌木16种，藤本1种，通过对树种定性指标资料的收集、整理以及定量指标的实验获得了树种全面、系统的信息。

The avenue planting of nine cities in Zhejiang has the following characters: 1. Avenue planting tree species are plenty; 2. Avenue planting benefits among the cities are not uniform and tree species used are various; 3. Tree species used for avenue planting are simple and landscape effects unideal; 4. Cultivated manner and stratal structure are simple, ecological benefits no good; 5. The tree species ratio, of evergreen with deciduous, of fast-growing with slow-growing, is out of proportion, and short-term...

通过对浙江省具代表性的9个主要城市行道绿化状况的调查分析，结果表明浙江省城市行道绿化具以下几个特点：①行道树种资源丰富；②城市之间绿化效果差异悬殊，所采用的绿化树种各有侧重；③绿化树种单一，色彩单调，景观效果差；④栽植配置方式单一，层次结构简单，生态效益差；⑤常绿树种与落叶树种、速生树种与慢生树种比例失调，近期效益考虑多，远期效益考虑少。

Direction as theory of modren foresty and biotechnology, Based on the Breeding of superior clones, culture medium prescription of tissue culture and photoautotrophic micropropagation for the main species of industrial raw material forest and flower of Fujian were selected, and the sivilcuture model for the main species of industrial raw material forest were comfirmed, and the assistant Forest Management System for the main species of industrial raw material forest and flower of Fujian were established.

以现代林业理论及生物技术为理论指导，在优良无性系选育的基础上，筛选出相思树种等我省工业原料林主要树种及花卉优良品种组织培养、光自养植物微繁技术的培养基配方及轻质专用容器苗基质；确定了环境友好型的工业原料林主要树种栽培模式，建立了相思树种等我省工业原料林辅助经营管理系统。

11local broadleaf Species were planted in west of Guangdong in spring,2003.Early growth resuit showed, species could adapt the climate and soil condition of west Guangdong,2 species include Castanopsis fissa.and Castanopsis hystrix grew best.

2003年在信宜进行了53个阔叶树种生长比较试验，选择其中11个树种进行调查分析，结果表明：11个阔叶树种在粤西地区具有极强的适应性；多个阔叶树种在粤西地区的早期表现良好，生长表现最好的树种是藜蒴和红椎。

Salix matsudana, Ulmus pumila, Quermus mongolica, Populus alba×P.beroliensis and Betula platyphlla are frontal 5 tree species with weight value 90.37, 90.12, 88.12, 87.55 and 86.2 respectively, were used for farmland protection forest; Acer negundo, Salix matsudana, Juniperus rigida, Fraxinus mandshurica and Ulmus pumila are frontal 5 tree species with weight value 78.14, 76.92, 75.96, 74.72 and 74.56 respectively, were used for urban protection forest; Ulmus pumila, Salix matsudana, Populus alba×P.beroliensis, Acer negundo and Larix gemelinii are frontal 5 arbor tree species with weight value 80.07, 79.07, 77.5, 72.42 and 71.67 respectively, were used for road protection forest; Salix matsudana, Populus alba×P.beroliensis, Ulmus pumila, Larixgemelinii and Betula platyphlla are frontal 5 tree species with weight value 92.37, 88.72, 86.62, 85.82 and 85.7 respectively, were used for river protection forest; Fraxinus mandshurica, Larix gemelinii, Populus alba*P.beroliensis, Ulmus pumila and Salix matsudana are frontal 5 tree species with weight value 89.61, 8.35, 87.12, 85.56 and 80.15 respectively, were used for wood forest; Cornus alba, Prunus tomentosa, Primus triloba, Syringa obalata and Sambucus williamsii are frontal 5 shrubs with weight value 82.93, 81.23, 80.85, 78.38 and 77.78 respectively, were used for landscape forest; and Acer negundo,Malus baccata, Sorbus pohuashanensis, Prunus maackii and Prunus padus are frontal 5 arbors with weight value 82, 81.52, 80.3, 79.62 and 78.9 respectively, were used for landscape forest; Prunus salicina, Prunu

根据哈尔滨地区不同林种的功能要求，给出了不同指标的期望值，通过查询系统可以得到旱柳、榆树、蒙古栎、银中杨、白桦为符合农田防护林的前五位的树种，权重值分别为90.37、90.12、88.12、87.55、86.2；糖槭、旱柳、杜松、水曲柳、榆树为符合城市防护林的前五位的树种，权重值分别为78.14、76.92、75.96、74.72、74.56；榆树、早柳、银中杨、糖槭、兴安落叶松为符合道路防护林的前五位的乔木树种，权重值分别为80.07、79.07、77.5、72.42、71.67；旱柳、银中杨、榆树、兴安落叶松、白桦为符合河岸防护林的前五位的树种，权重值分别为92.37、88.72、86.62、85.82、85.7：水曲柳、兴安落叶松、银中杨、榆树、旱柳为符合用材林的前五位的树种，权重值分别为89.61、88.35、87.12、85.56、80.15；红瑞木、毛樱桃、榆叶梅、紫丁香、接骨木为符合风景林前五位的灌木树种，权重值分别为82.93、81.23、80.85、78.38、77.78，糖槭、山丁子、花楸、山桃稠李、稠李为符合风景林前五位的乔木树种，权重值分别为82、81.52、80.3、79.62、78.9；李、杏、文冠果、山楂、野梨为符合经济林的前五位的树种，权重值分别为88.85、80.88、73.25、69.35、63.77。

Many tree species at the same time and solve the spatial heterogeneity which empirical method could not achieve. Therefore, the assessment method could be applied in the selection of species for afforestation or species selection in the forest restoration areas.From collecting the attributes of planting species, spatial distribution data and environmental factors, we could integrate and analyze the data for further simulating the forest dynamics of forest in Taiwan. The impact of global change on forest also could be evaluated.

应用生育地因子评估树种之生态地位，能解决统计实证方法在空间异质性使用的限制，并可同时评估多种树种，因此可应用在造林树种之选择，亦可应用於崩塌地复育造林树种之选择，以及林相改良造林树种之选择，在收集更多树种属性与空间分布资料后，配合此评估方法，未来更可模拟出台湾森林之动态，以及评估环境变迁对台湾森林所造成的影响。

与树种相关的网络解释 [注：此内容来源于网络，仅供参考]

Conifer Seed：树种

Trout 鳟鱼 | Conifer Seed 树种 | Trophy Room 颁奖室

coniferous：针叶树种

coniferol 松柏醇 | coniferous 针叶树种 | coniferous timber 针叶材

coniferous species：针叶树种

compressed wood 压缩木 | coniferous species 针叶树种 | continuous layer board 多层板

heartwood tree：心材树种

边材sapwood | 心材树种heartwood tree | 边材树种sapwood tree

intolerant tree species：喜光树种

立地类型 site type | 喜光树种 intolerant tree species | 耐荫树种 shade-tolerant tree species

sapwood tree：边材树种

心材树种heartwood tree | 边材树种sapwood tree | 熟材ripewood

subdominant tree species：亚优势树种

优势树种 dominant tree species | 亚优势树种 subdominant tree species | 伴生树种 associated tree species

hygrophilous tree species：湿生树种

旱生树种 xerophilous tree species | 湿生树种 hygrophilous tree species | 中生树种 mesophilous tree species

mesophilous tree species：中生树种

湿生树种 hygrophilous tree species | 中生树种 mesophilous tree species | 森林气候 forest climate

thermophilous tree species：喜温树种

耐荫树种 shade-tolerant tree species | 喜温树种 thermophilous tree species | 耐寒树种 winter hardy tree species