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落叶松     
相关语句
  larch
     Study of Larch Allelopathy on Manchurian Walnut
     落叶松对胡桃楸化感作用的研究
短句来源
     Fine Root Turnover and Carbon Allocation in Manchurian Ash and Davurian Larch Plantations
     水曲柳落叶松人工林细根周转与碳分配
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     OPTIMUN DENSITY IN THE MANAGMENT OF LARCH PLANTATION
     落叶松人工林成林合理经营密度的探讨
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     PRELIMINARY STUDY ON THE EVAPOTRANSPIRATION IN XINGAN LARCH FOREST
     兴安落叶松森林蒸腾的初步研究
短句来源
     STUDY ON THE STRUCTURE OF THE LARCH WOOD COMMUNITY
     人工落叶松林群落结构的研究
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  larix
     Comparing Study on Intraspecific Type(Red Wood) and form (White Wood) of Larix Gmelinii (Rupr.) Rupr.
     兴安落叶松种内红材型与变异类型-白材型的比较研究
短句来源
     Research on the Hydrological Process and Laws of Larix Gmelini Ecosystem at the Greater Xingan Mountains
     大兴安岭落叶松林生态系统水文过程与规律研究
短句来源
     Compare Study on Nutrient Ecology of Pinus Koraiensis and Larix Olgensis Plantation Ecosystems
     红松和落叶松人工林养分生态学比较研究
短句来源
     A Study on Genetic Diversity of Different Geographic Provenances of Larix Gmelinii(Rupr.) Rupr and Its Utilization
     兴安落叶松地理种源遗传多样性与利用研究
短句来源
     Study on the Induced Resistance of Larix Gmelinii to Insects
     兴安落叶松诱导抗虫性研究
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  larix spp
     199. 876 t/hm2, 7. 60 t/(hm2. a) and 0.0380 , respectivily of L.gmelinii forest. The biomass, productivity and NP/B of Larix spp. population are 214. 31 t/hm2, 11. 44 t/(hm2. a) and 0. 053 4, respectively of L.principis-rupprechtii population;
     年净生产量:华北落叶松混交林为13.82和11.44t/hm2·a,长白落叶松林10.10和9.48t/hm2·a,阿尔泰落叶松混交林9.74和8.21t/hm2·a,兴安落叶松林7.6和7.17t/hm2·a;
短句来源
     Selection and Application of Excellent Ectomycorrhizal Fungal Strains from Larix spp.
     落叶松外生菌根真菌优良菌株筛选及其在造林中的应用
短句来源
     STUDY ON USAGE OF HIGH FREGUENCY AND VACUUM FOR DRYING SAW TIMBER OF LARIX SPP. AND FRAXINUS MANDSHURICA
     高频真空干燥落叶松和水曲柳锯材的研究
短句来源
     The dynamic analysis on the landscape of Laoshan beauty spot was carried out with the support of ARC/INFO, the forest type map and field survey data of 1983, 1991 and 2001. The result showed that the landscape diversity of Laoshan beauty spot was low, and the whole landscape area was held above 80 percent by Larix spp.
     利用崂山风景区的林相图和 1983年、1991年、2 0 0 1年 3期实地调查资料 ,在ARC/INFO的支持下 ,对崂山风景区的景观格局进行了动态分析。 结果表明 :(1)景观多样性较低 ,整个景观被黑松与落叶松林占据了80 %以上的面积。
短句来源
     INTRODUCTION OF LARIX SPP. AND THEIR GROWING EFFECTS IN SHAANXI
     落叶松引种及其在陕西生长的效果分析
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  larch wood
     (2) The change trend of chemical components along MOR(90Mpa,100Mpa,110Mpa)for Larch wood in the Imperial Palace were not apparent。
     (2)故宫武英殿落叶松健康材试样在抗弯强度变化不大的条件下(MOR分别为90Mpa,100Mpa,110Mpa),其化学成分的变化只有小的波动,变化不显著。
短句来源
     STUDY ON THE STRUCTURE OF THE LARCH WOOD COMMUNITY
     人工落叶松林群落结构的研究
短句来源
     The Radial Variation Patterns of Anatomical Characteristics of Larch Wood for Different Planting Density
     不同初植密度兴安落叶松人工林木材解剖特征的径向变异
短句来源
     From analyzing the structure and property of larch wood, present production state of small-scale larch plywood factory, results show that the larch structure and property is suitable for plywood, some unsuitable factors can be admitted by reasonable production techniques.
     本文旨在于从落叶松构造与材性、落叶松胶合板生产技术的科学研究,并通过对现有小规模落叶松胶合板厂生产状态的分析,进而阐明落叶松胶合板生产技术的可行性。 落叶松构造和材性有许多方面适合于作胶板用材,其不利因素在合理的生产工艺条件下是可以改变的;
短句来源
     In order to improve bond properties of Larch wood,its surface was treated with H2O2 solution and effect of the treatment was examined.
     为提高用水性高分子异氰酸酯胶粘剂(API)胶接的落叶松木材的胶接性能,采用H2O2溶液对落叶松表面进行活化处理。
短句来源
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  larch
The experimental results are listed below: 1) 5-aminolevulinic acid (ALA) synthetic rate increased as nitrate concentrations supplied to larch seedlings increased from 1 to 8 mmol/L.
      
The activities of porphobilinogen (PBG) synthase reached a maximum when larch seedlings were supplied with 8 mmol/L of nitrate or 1 mmol/L of phosphate.
      
2) when larch seedlings were supplied with 8 mmol/L of nitrate and 0.5 mmol/L of phosphate, the contents of chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids reached a maximum.
      
Variations of fine root diameter with root order in Manchurian ash and Dahurian larch plantations
      
A landscape model (LANDIS) was used to study the long-term forest dynamics under five planting types (100% larch (P1); 70% larch and 30% Mongolian Scotch pine (Pinus sylvestris var.
      
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  larix
In our experiments, one-year-old Larix olgensis seedlings were cultivated in sand, and supplied with solutions with different concentrations of nitrate or phosphate.
      
mongolica, Pinus koraiensis and Larix gmelinii) and natural secondary forests (Fraxinus mandshurica, Quercus mongolica and Populus davidiana).
      
The results showed that the river flow increased in the initial ten years after forest harvesting, but decreased gradually with the growth and crown closure of the Larix gmelini plantations.
      
Density structure and growth dynamics of a Larix principis-rupprechtii stand for water conservation in the Wutai Mountain Region
      
To discover the site adaptability and density suitability of Larix principis-rupprechtii as a water conservation forest in Wutai Mountain, Shanxi Province, the growth process and diameter distribution characteristics of 10-year-old artificial L.
      
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  larix spp
Larches (Larix spp.), deciduous conifers, occur in the northern hemisphere in cold-temperate and boreal climates - an environment normally thought to favor evergreen tree species.
      
We compare foliar carbon isotope discrimination (Δ), instantaneous water use efficiency, total foliar nitrogen concentration, and specific leaf area (for a subset of sites) between Larix spp.
      
At elevations greater than 3000?m, the Δ of Larix spp.
      
Deciduous larches,Larix spp., and evergreen pines,Pinus spp., are sympatric Pinaceae conifers.
      
One type of putative mycorrhizal association, ectendomycorrhiza, is confined to Pinus and Larix spp.
      
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  larch wood
The role of readily hydrolyzable polysaccharides of larch wood in manufacture of board materials
      
Role of readily hydrolyzable polysaccharides of larch wood in production of board materials is studied.
      
The quick determination method of resin content in larch wood
      
The resin content in larch wood is usually determined by the traditional Benzene-Alcohol Extract Method (BAEM).
      
GCP and APP were used as flame retardants for poplar wood and larch wood, and their flame retardancy(OI), permeability (Surface electron spectroscopy), water-repellency and corrosion toward nail evaluated.
      
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