查询词典 coniferous
- 与 coniferous 相关的网络例句 [注:此内容来源于网络,仅供参考]
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P in Shule River Alluvial Fan Oasis in Gansu subsidized by CNSF. Through field geological and environmental observations and sampling, quartz OSL dating, organic carbon ~(14)C dating, as well as analysis of TOC,grain size and Pollen assemblage of the samples from ten sediment profiles in front fine grain sediment zone of the Shule River Fan, the results obtained as follows:(1)The vegetation evolution history on Shule River Alluvial Fan and circumjacent since about 13 ka B.P. could be divided into 6 phases: about 12.1-13.1ka, a sparse coniferous and broadleaf trees - shrub grassland, cold and wet climate; 9.2-12.1ka, shrub grassland, temperature rising but precipitation and humidity getting down; 5.8-9.2ka, sparse forest with the most flourish shrub grassland under the optimal climate; 4.3-5.8ka, coniferous and broadleaf mixed forests -shrub grassland, temperature rising slightly and getting dry; 4.3-2.8ka, grass vegetation and climate became more dry; 2.8-2.3ka, coniferous forests -shrub grassland, precipitation and temperature getting down, but a higher relative humidity.
本文依托于&甘肃疏勒河冲积扇5万年来古天气环境与古水文演化&项目,以疏勒河冲积扇为研究对象,通过对疏勒河冲积扇扇缘细土带全新世古天气和古水文演变进行了20余个剖面的观测和取样、石英OSL和~(14)C测年、粒度组成和TOC分析以及孢粉鉴定,获得了以下成果和熟悉:(1)距今约13ka年来冲积扇和周边植被演化经历了6个阶段:约13.1~12.1ka,以针叶林为主的针阔混交林~灌丛草原,天气冷湿;12.1~9.2ka,灌丛草原,气温升高,降水量较低;9.2~5.8ka,疏林灌木草原,植被茂盛,温度和降水最佳;5.8~4.3ka,以针叶树为主的针阔混交林~灌丛草原,气温较高,降水减少;4.3~2.8ka,草原植被,天气变干;2.8~2.3ka,针叶林~灌木草原,降水减少,温度降低,相对湿度有所增加。
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Podsol The type of SOIL found under heathland and coniferous forests in temperate and boreal climates where there is heavy rainfall and long cool winters, such as the coniferous forests of northern North America and Eurasia.
灰壤:存在于多湿、寒冷的北温带的石楠灌丛和针叶林地带的土壤类型,如北美北部和欧亚大陆的针叶林区。是在针叶林作用下形成的发育程度较高的灰化土。
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The auther studied the community ecology of soil pro-tozoa by chosing the five representative forest types,korean-pine-broad-leaved forest,broad-leaved-korean-pine forest,korean-pine forest,broad-leaved forest andsylvesfriformis-pine forest in the coniferous-broadleaved mixed forest zone on northern slope of ChangbaiMountain during the summer of 1985-1987 in order tounderstand the composition of species and number of soilprotozoa in different forest types of the coniferous-broad leaved mixed forest zone;species dibersity indexand evenness index of soil protozoa in community;pro-tozoan density and biomass;noteworthiness of the re-gularity of protozoan number variance;distributionpattern in community;horizontal distribution;relation-ship of vertical distribution and soil micro-environ-ment etc.,and compare the similarities and differencesof these five forest types according to feature ofsoil protozoan community,and finally summarize thetheoretical regularity,the index or the evidonceof the best forest-type structure.
本文工作的目的是通过对不同林型下土壤原生动物的群落组成,群落结构特征的研究,以及对凋落物分解过程中原生动物种类和数量的初步调查,来探索土壤原生动物在指示环境条件和林型结构特征方面的可能性作用。
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The result indicates that the water, tundra, residential sites, needle-leaved forest and brass were decreased from 1977 to 1985; while the plantation and the coniferous and broad-leaved mixed forest obviously increased; and the broad- leaved forest, betula ermanil forest, road and bare soil also increased. During 1985 to 1999, the water, bare soil, coniferous and broad-leaved mixed forest, broad-leaved forest reduced, the rest landscape types increased in this area.
分析表明:从景观面积变化率来看,1977~1985年间,水体、苔原、居民点、针叶林和草地的面积减少,耕地和针阔混交林的面积增加显著,阔叶林、岳桦林、道路、裸地增加;1985~1999年间,水体、裸地、针阔混交林和阔叶林的面积减少,其他类型面积增加。
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The vertical distribution of soil animal community in ubalpine coniferous forest in western Sichuan still had surface accumulation, but had the tend of adown moving.
川西亚高山针叶林土壤动物群落垂直分布仍具有表聚性,但有向下层移动的趋势。
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Any of several evergreen coniferous trees of the genus Araucaria native to South America and Australia, having awl-shaped leaves and whorled branches and including the monkey puzzle and Norfolk lsland pine.
南洋杉一种生于美洲和澳洲的南洋杉属常绿结球果的树,具有锥形叶和轮生树枝,包括智利南洋杉及诺福克南洋杉
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Coniferous shrub or small tree with berrylike cones .
针叶灌木或带有浆果的小型树木。
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The eastern part of 2500 ~ 3300 meters above sea level distribution of boreal coniferous forests.
东部海拔2500~3300米分布有寒温带针叶林。
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See from the function results, it is best for deciduous broadleaf tree on the potential of absorbing carbon-releasing oxygen, decreasing temperature and purifying SO2; next is fewer shrub and coniferous tree, grass is the worst.
从作用效果来看,落叶阔叶树类的吸碳放氧、降温效果和SO2的净化潜力最佳,其次为花灌木和针叶乔木树种,草类最差。
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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。
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- 推荐网络例句
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Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.
马哈拉施特拉邦内政部高级官员Pradeep Indulkar称,有101人在冲突中丧生,287人受伤。
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Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.
Frei说,该公司80%在家办公的人员都拥有本科学位,而在公司电话中心工作的人中只有30%拥有本科学位。
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Based on the application of grey forecasting control theory on the hybrid d cable-stayed bridge, the paper puts forward construct control system of the hybrid cable-stay bridge by cantilever assemble construction.
将灰色系统理论和预测控制理论应用于混合梁斜拉桥,提出了悬臂拼装施工的混合梁斜拉桥施工控制体系。