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reserve
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  保护区
    A Study of the Forest Fire Protection System or WuyishanBiosphere Reserve in Fujian Province
    福建武夷山生物圈保护区森林防火系统的研究
短句来源
    Study on 17 Years Changes of Birds in Shanxi Pangquangou Nature Reserve
    庞泉沟保护区鸟类近十七年变化情况的研究
短句来源
    Establishment of geographic information system in Xishuangbanna Nature Reserve and reserve management.
    西双版纳自然保护区地理信息系统的建立与保护区的管理
短句来源
    The trend apparently moved up before stabilization,Finally,the biomass was calculated as 6,160,986.70t in 1995 and 6,245,181.834t in 1999,the average carbon density of natural reserve was 86.82t/hm2 and 90.93t/hm2,on average,the increment was 1.83t/hm2·a. It draws conclusion that the forest ecosystem of Jinggang mountain natural reserve was carbon sink.
    1995年和1999年保护区总生物量分别为6 160 986.70t和6 245 181.834t,碳储量密度分别为86.82 t/hm2和90.93t/hm2,平均增长1.83t/hm2.a,碳汇作用明显。
短句来源
    Study on the Biodiversity and the Development of Yalujiangkou Seaside Wetland Nature Reserve
    鸭绿江口滨海湿地自然保护区的生物多样性及保护区发展研究
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  “reserve”译为未确定词的双语例句
    Ecology of Indian Muntjac (Muntiacus Muntjak) in Hainan Datian National Nature Reserve
    海南大田国家级自然保护区赤麂(Muntiacus muntjak)生态学研究
短句来源
    Genetic Variation of Quercus Aquifolioides Populations at Varying Altitudes in the Wolong Nature Reserve of China
    中国卧龙自然保护区不同海拔川滇高山栎(Quercus aquifolioides)群体的遗传变异
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    Quantitative Analysis of Vertical Forest Zones in The Nature Reserve of Mount West Tianmu
    西天目山自然保护区森林垂直带的定量分析
短句来源
    Study on the Adaptation of Milu Herd to the Photoperiod at Dafeng Reserve
    大丰麋鹿群对光周期适应的研究
短句来源
    Research on Cocology of Mangrove in Futian reserve,ShanzhenⅢ.Species association and correlation information field
    深圳福田红树林的群落学研究Ⅲ.种间联结与相关信息场
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  reserve
The protocol is founded on time division multiplex address and a different type of traffic is assigned to different priority, according to which a node should compete for and reserve the free slots in a different method.
      
The standing crop of N in the plant community was 1,025.28 kg/hm2, accumulation in the litter layer was 224.88 kg/hm2, and reserve in the soil was 55,151 kg/hm2.
      
Interspecific relationships in a natural forest dominated by Pinus kwangtungensis, a rare and endangered pine species endemic to China, were studied based on inventory data from 7,200 m2 plots in Nanling National Nature Reserve.
      
kwangtungensis in Nanling National Nature Reserve.
      
After investigating and studying the vegetation, we have established that Makehe Forest, in Sanjiangyuan Nature Reserve, Qinghai Province, is host to a total of 364 different species, representing 173 "genera" in 55 different vegetative families.
      
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The Wolong Natural Reserve is situated in the eastern borders of the

卧龙自然保护区位于青藏高原东部边缘末端,山高坡陡,森林土壤资源丰富,垂直分布规律明显.境内具有亚热带常绿阔叶林下的山地黄壤,常绿阔叶,落叶阔叶混交林(北亚热带气候特征)下的山地黄棕壤,次生落叶阔叶林(暖温带气侯特征)下的山地棕壤,针叶、阔叶混交林(温带气候特征)下的山地暗棕壤,冷杉林(寒温带气候特征)下的山地棕色暗针叶林土,亚高山草甸、高山草甸(亚寒带气候特征)下的亚高山草甸土、高山草甸土,高山流石滩上发育的高山寒漠土以及高山永雪带下的高山冻原等完整而宽阔的垂直带谱。本文对卧龙自然保护区的主要森林土壤及其基本性质和它们的垂直分布规律作了详细的阐述,为进一步全面研究该区森林生态系统中提高森林土壤生产力的本底材料。

Natural resistance of wood from differnt tree species to microbial deterioration differs considerably. Individual trees of the same species may also vary a great deal in decay resistance. Natural durability varies within the same tree too, especially in species with very durable heartwood. In the durable species, decay resistance decreases incessantly from the outer heartwood to the pith. Toxic extractive substances deposited during the formation of the heartwood are the principal source of decay resistance....

Natural resistance of wood from differnt tree species to microbial deterioration differs considerably. Individual trees of the same species may also vary a great deal in decay resistance. Natural durability varies within the same tree too, especially in species with very durable heartwood. In the durable species, decay resistance decreases incessantly from the outer heartwood to the pith. Toxic extractive substances deposited during the formation of the heartwood are the principal source of decay resistance. Most of the heartwood extractives known to inhibit decay are phenols. Carvacrol, 2-thujaplicin, quercetin pinosyluin, and tannins all seem to contribute to decay resistance, other mechanisms of natural durability of wood, such as the lignification of wood cell walls, crystallinity of the cellulose, depletion of reserve food materials, higher moisture rcquirments for wood-inhabiting fungi, and different resistance of the wood structure to white-rot and brown-rot fungi arc also discussed, in this paper.

不同树种的木材对微生物分解的天然抵抗力是不同的,同一树种的不同个体的耐腐力亦有很大的不同,甚至同一棵树的不同部位其耐腐性也会有变化,特别是对于那些具有很耐腐心材的树种。在耐腐树种中,其耐腐力从心材的外缘到髓芯逐渐降低。在心材形成过程中积聚起来的毒性提取物是耐腐力的主要来源。已知对腐朽有抑制作用的大多数心材提取物是酚类化合物。香芹酚、(艹守)侧素、栎精,3,5-二羟苯乙烯和单宁都可能对耐腐性起作用。本文还论述了木材耐腐性的其它一些因素,例如木材细胞壁的木质化,纤维素的结晶度,贮存食物的枯竭,木材水份的含量以及木材结构对白腐菌和褐腐菌的不同抵抗力等。

The ecological distribution and biochemical properties of soil microorganisms under different types of forest on the northern slope of the Changbai Shan Mountain Natural Reserve were studied.The relations between the main vegetation types and ecological distribution of soil microorganisms are as follows:1. The number of soil bacteria under the deciduous forest and the broad-leaved and coniferous mixed forest is greater than that under the coniferous forest.2. The distribution of soil actinomycetes under...

The ecological distribution and biochemical properties of soil microorganisms under different types of forest on the northern slope of the Changbai Shan Mountain Natural Reserve were studied.The relations between the main vegetation types and ecological distribution of soil microorganisms are as follows:1. The number of soil bacteria under the deciduous forest and the broad-leaved and coniferous mixed forest is greater than that under the coniferous forest.2. The distribution of soil actinomycetes under different soil types is decreased with an increase in altitude.3. The microfungi are more abundant in the soils under the subalpine mixed coniferous forest. The ecological distribution of Genus Bacillus, actinomycetes and microfungi, and the species composition and the dominant species vary with different altitudes, vegetations and soil types.It seems that the dominant species under different types of forest is clocely correlated with water-heat conditions, constituents of plant residues and decomposition processes of scil organic matters.Activities of soil enzyme ( Protase, Invertase, Catalase and Polyphenolase), endogenous respiration, capability of oxidative metabolism, and distribution of neutral monosaccharides, amino sugar and uronic acid in the soil organic matters vary greatly with different forest types.The above values are the higest in the soils under both the deciduous forest and the coniferous and broadleaved mixed forest, and the lowest in the soil under the coniferous forest. The biochemical activities in the soil under the mixed coniferous forest increases with an increase in broad-leaved trees.

本文研究了长白山北坡自然保护区森林土壤微生物的生态分布和生化特性。土壤微生物的垂直分布与林型之间有着下列相关性:(1)阔叶林和针阔混交林下土壤中细菌的数量比针叶林下多;(2)不同土类中,放线菌的分布随海拔上升而减少;(3)亚高山针叶混交林下土壤中真菌数量很多。不同林型下土壤酶活性、内源呼吸、氧化代谢能力和土壤有机质中中性糖、氨基糖和糖醛酸的分布有很大差异,以阔叶林和针阔混交林下土壤中为最高,针叶林下土壤中为最低。针叶混交林下土壤中生化活性随阔叶树种增加而提高。不同海拔、不同植被和不同土类下,芽孢杆菌属、放线菌和真菌的生态分布及其种的组合不同。芽孢杆菌属的优势种和放线菌、真菌优势属的组成也不同。不同林型下优势种的组成与水热条件、植物残体的组成及土壤有机质的分解过程密切相关。

 
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