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树高     
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  tree height
    A Grey Systematic Dynamic Model of Tree Height Measurement of Schren Spruce
    天山云杉林分树高测定的灰色动态模型
短句来源
    STUDY OF THE APPLICATION OF NONLINEAR REGRESSION ANALYSIS TO EVALUATE SITE QUALITY AND TO PRIDICT TREE HEIGHT
    非线性回归分析在立地质量评价和树高预测中的应用探讨
短句来源
    VARIABLE RELATIVE TREE HEIGHT CURVE MODEL AND ITS APPLICATION IN TREE VOLUME ESTIMATION
    可变参数相对树高曲线模型及其应用研究
短句来源
    Models for Tree Height Curves of Piuns massoniana and Cunninghamia lanceolata
    林木树高曲线模型研究
短句来源
    The preserving rate,tree height,crown growth of the stands which have been block transformed by adopting measures(e.g.,using superior clones of Casuarina equisetifolia) on the behind greenbelts are 51.17%,2.3%,and 25.71% higher than CK(except 1.2cm lower than mean DBH) compared with remain-aged-belts.
    在后沿片林内通过采用木麻黄优良无性系等综合措施块状改造后的林分与保留老林带相比,除了平均胸径生长略低1.2 cm外,其保存率、树高和冠幅生长量显著高于保留低效林的51.17%、2.3%和25.71%。
短句来源
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  height
    A Grey Systematic Dynamic Model of Tree Height Measurement of Schren Spruce
    天山云杉林分树高测定的灰色动态模型
短句来源
    STUDY OF THE APPLICATION OF NONLINEAR REGRESSION ANALYSIS TO EVALUATE SITE QUALITY AND TO PRIDICT TREE HEIGHT
    非线性回归分析在立地质量评价和树高预测中的应用探讨
短句来源
    Sloboda Height Growth Model and Its Application on Chinese Fir Plantation
    Sloboda树高生长模型及其在杉木人工林中的应用
短句来源
    The Height Curve and Volume Curve Derived from the Theory of Column Buckling
    基于柱体屈曲理论的树高曲线式和材积式
短句来源
    VARIABLE RELATIVE TREE HEIGHT CURVE MODEL AND ITS APPLICATION IN TREE VOLUME ESTIMATION
    可变参数相对树高曲线模型及其应用研究
短句来源
更多       
  height of tree
    The results show that the relation between age and diameter of tree is A=α+ βlog(D),and the relation between age and height of tree is A=α+ β(H).
    结果表明:林木年龄与林木直径之间存在着A=α+βlog(D)关系,林木年龄与林木树高之间存在着A=α+β(H)关系。
短句来源
    A STUDY ON THE CALCULATION OF MID-DIAMETER WITH THE BREAST-HIGHT DIAMETER AND THE HEIGHT OF TREE
    用胸高直径和树高计算中央直径的研究
短句来源
    What forest governors concern about is the fall of arboreal which is relevant to the basic parameters such as diameter at breast height, height of tree and so on.
    林业管理者关心的是树木的最终采伐量,而树木采伐量是与树高、胸高直径等基本参数有关的;
短句来源
    with 125.5% higher than the control clone RRIM600.The girth was slower than that of the control. and the height of tree is 13.7 meters at eleven years, about 85% height against the control.
    生长比对照RRIM600慢,11年生时全树高13.7m,比对照矮15%,是一个早熟、高产、稳产的矮生材料。
短句来源
    The POD activity have a strikingly negative relationship with the height of tree,trunk girth,diameter of crown,the volume of the tree crown,and the dwarfed nature of the stocks.
    POD活性与树高、干周、冠径、树冠体积呈显著负相关,与砧木的矮化性呈负相关。
短句来源
  tree hight
    With the methods of regression and path analysis, the correlation be-tween the growth of magnolia officinalis and soil nutrient was studied. The regression equation of the tree hight and soil nutrient is Y1 = 3.128013 + 131.7013x2-0.4580875x3+0.14913x5(R = 0.9789***).
    该文通过逐步回归和通径分析,对土壤养分与凹叶厚朴生长的相关性进行了研究,其树高与土壤养分的回归方程为y_1=3.128013+131.7013x_2-0.4587805x_3+0.14913x_5,复相关系数R=0.9789;
短句来源
    The skewness turns to the right side during the young stage and borders to normal condition after ten years of age. (2). The kurtosis decreases with the increasing of the breast height diameter, tree hight, age and form-quotient (q_2).
    却随形率(q_2)的增加而增大,而依胸高直径(树高、年龄)的增大相应的变小,在幼林期为右偏,约在10年后近于正态.
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  tree height
Diameter at breast height (DBH) and tree height in the intercropped plantation were 50.5%-136.7% and 27%-59.5% higher than those of the CK, respectively.
      
The results showed that: 1) The tree height increment of the two kinds of forests were the same, and it was almost not affected by density.
      
Nighttime water recharge had no significant correlation with environmental factors, but was well correlated with the diameter at breast height, tree height, and crown size.
      
These kinds of equations were also used to fit the relationship between total tree biomass, branch biomass, foliage biomass and tree diameter at breast height (D), tree height (H), D3 and D2H, respectively.
      
Our study shows that the biomass of a single tree of each tree species is closely related to the diameter at breast height (DBH) and to tree height.
      
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  height
A very large sample plug was introduced hydrostatically into the capillary (65 cm × 50 μm i.d.; effective length of 35 cm) over 80 s at a height difference of 11 cm.
      
The unbound ketoprofen concentration was directly measured from the height of the frontal peak.
      
The melt droplets with a height of 50-100 nm and a lateral size of 2-3 μm were obtained by melting the PEO ultra-thin films on a mica surface.
      
The results of measurement show that this lidar has the ability to gain profiles of ratio of water vapor mixing ratio from surface to a height of about 8 km at night.
      
Results showed that arbuscular mycorrhizal (AM) inoculation significantly improved the height, stem diameter, and fresh weight of P.
      
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  height of tree
(2) Control index is established, based on the relationship among the disease index, height of tree, diameter grade and the loss rate of volume.
      
Additionally, investigations on shelterbelt trees were carried out, and stem-analysis techniques were used, to develop a method for determining the mature height of tree windbreaks (H0).
      
The species, counts and height of tree seedlings and the species, counts, height and percentage coverage of shrubs and herbs were recorded in the field.
      
We developed a tree regeneration model, 'RegSnag' (=REGeneration in a SNAG stand), to project the future amount and height of tree regeneration in these snag stands.
      
Thus, vegetation changes, size and height of tree populations, and height increment of tree individuals were observed over a time span of 6?years.
      
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