测树
- forest measurement;assize
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研究的意义在于为丰富传统的数据采集方法与测树理论进行基础探索性的研究。
The meaning of this research is to abundance traditional means of collecting information and Forest Measurement theory .
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G(S)分类基。角规测树的研究
G ( s ) IR bases . studies on the angle gauge method
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Voronoi图&泰森多边形法在角规测树中的应用
Application of the Voronoi Diagram-Thiessen Polygon Method in Tree Surveying with Angle Gauges
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林分密度控制图是按照林分测树因子中的树高(H)、胸径(D)、蓄积(M)与立木密度(N)之间相互关系建立数学模型进行编制的。
The stand density control chart is worked out according to the mathematic model that is established on the basis of the relations between the tree height , diameter breast height , stock of the stand forest-mensuration factors and the stumpage density .
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试验表明,1km罗盘支导线最弱点的中误差达3m,罗盘测树高的相对精度达5%。
Experiments demonstrate that the relative precision of tree height is 5 % , while in 1 km of compass traverse , the mean error of the worst point position is only 3 m.
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测树器测得立木5a的年平均直径生长量为0.074cm,5年期间测得有17.6%的个体直径为零增长或负增长。
Dendrometer measurement showed a mean annual diameter growth of 0.074cm ( increment percentage 0.57 % ) in a 5 year period , with 17.6 % of the individuals measured with dendrometers presenting zero or negative growth during this period .
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杆式角规器测树原理分析
The Analysis of Pole Type Angle Gauge ′ s Measure Principle
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视差杆量测树高精度的探索
Study on the Precision of Tree Height Measured with Parallax Instrument
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基于立体视觉的郁闭林分主要测树因子的重建
Reconstruction of Key Tree Factors in Shade Stand based on Stereo Vision
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利用计算器程序化求算标准地的测树因子
Tree Survey Factors of Sample Plot Calculated by Calculator Programme
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角规测树的进测木蓄积计算方法研究
Research on Entering-and-cruised Tree Volume Calculation Method of Enumeration with Angle Gage
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角规测树生长理论方法的研究
A Method for Estimating Stand Growth With Survivor on Horizontal Points Sample
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TI&59可编程序计算器在角规测树中的应用
The Use of TEXAS INSTEUMENTS Programmable 59 in Angle Gauge Forest Mensuration
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红松分杈对各测树指标的影响研究
Effect of Korean pine branching on some tree survey targets
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大比例尺航片主要测树因子量测分析
The analysis of main tree measuration factors by using large scale aerial photos
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灌木各测树因子相关性以及器官生物量相关性的研究
The research for the pertinence of measure factors and organism biomass of shrubs
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混交林测树因子概率分布模型的构建及应用
Construction and application of probability distribution model for mixed forests tree measurement factors
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TGC&300型光学测树仪的原理与设计
The design of TGC-300 optical dendrometer and its principle
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全站仪固定样地测树原理及精度分析
The analysis of Forestry mensuration principle and precision in fixed samples by total station
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落叶松幼中龄林主要测树因子生长规律的研究
Study on growth pattern of principal measurement factors in young-and middle-aged stands of larch
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角规测树方法的误差分析
Error analysis of forest measuration with angle gauge
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角规测树的研究
Studies on the angle gauge method
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对角规测树的进测木蓄积计算方法研究一文的商榷
Discussion on " Research on Entering-and-Cruised Tree Volume Calculation Method of Enumeration with Angle Gauge "
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使用线性变换、融合方法编制测树用表的初步探讨
A preliminary study on construction of volume tables by using the method of linear transformation and combination
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太岳林区油松采脂量及其与测树因子关系的研究
Study on the Relationship between Output of Resin and Stand Characteristics of Pinus tabulaeformis in Taiyue Forest Farm
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结果表明,密度对主要测树因子和树冠发育均有显著影响。
Result showed that the densities have significant effects on growth of tree and development of tree crown .
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本文利用414块人工落叶松林样地实测资料,探讨了角规测树的误差问题。
Errors in forest measuration with angle gauge are analyzed in this paper based on the data from 414 plots of larch plantation .
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在编制测树用表、建立经验公式的过程中,使用通常的线型回归,往往得不到理想的结果。
In the process of constructing volume tables and building experience formulas , the expecting results arc obtained by means of the common linear regression .
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其次重点分析了各测树因子的连年生长量和平均生长量的变化情况及各自达到最大值时的年龄。
Second , focused on analysis of each factors ' current annual increment and annual growth increment and the age of the maximum of each increment .
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提出了林分平均胸径100倍圆法的测树方法、一般操作步骤与技术要求。
The paper proposes the dendrologic method , general operational procedures and technique requirements of the method of100 times of circles of forest stand average breast diameter .