• 本文利用414人工落叶松林样地实资料探讨角规测树误差问题

    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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  • 本文探讨角规测树毛竹林分蓄积量标准株数、林分重量单位面积株数中的应用

    Moreover, the application of angle-count cruising to calculating the stand volume, standard stock number, stand weight and stock number per unit area, is discussed.

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  • 利用50系统定位资料分析红松果材兼用林不同林分密度直径主要测树因子关系。

    By using observation data over 50 years, the paper systematically analyzed the relations of different stand density with diameter, height, crown of trees and so on.

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  • 研究结果:(1)油松各类测树指标、地上部分各类营养部分生物量两两之间显著关系它们果生物量的关系显著

    The results are those: (1) the relations between each pair of forest measures and biomass are significant, however they are not obviously related to the cone biomass.

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  • 本文林业立体视觉技术研究一个基础部分,林业立体视觉量技术的目的是实现自动化提高效率精度

    This research is the basic subsystem of forestry stereo vision system, which makes automatic tree size measure become reality to improve the efficiency and precision of the forestry measure work.

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  • 针对普通测树角规森林调查中存在弊端 ,研究发明了一能自动改正坡度新型角规 ,详细介绍了其原理、结构设计及使用方法。

    Focusing on overcome the shortcomings of routine angle gauge using in forest measuration, a new-type angle gauge with the function of correct slope automatically was developed.

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  • 落叶松一个分布广栽培,早期生长因此研究落叶松幼、中龄林主要因子的生长规律落叶松的早期管理有着很重要的指导意义。

    Larch is a tree species that is widely and easily planted, so it is important for early management to study growth pattern of principal measurement factor in young-and middle-aged stands.

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  • 到达目标后,在圈定好的500区域他们卷尺径规手持激光设备对所有高度进行量。

    Once there, they use tape measures, callipers and a hand-held laser to measure the heights and girths of all the trees within a 500-square-metre plot.

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  • 到达目标后,在圈定好的500平方米区域他们卷尺径规手持激光设备对所有高度进行

    Once there, they use tape measures, callipers and a hand-held laser to measure the heights and girths of all the trees within a 500-square-metre plot.

    youdao

  • 对景区内群落排列、光大小变异景观要素反应较高

    In old-forest stands, the test trees had higher feedback values to the landscape elements such as arrangement of trees, light perception, and variation of tree size.

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  • 对景区内群落排列、光大小变异景观要素反应较高

    In old-forest stands, the test trees had higher feedback values to the landscape elements such as arrangement of trees, light perception, and variation of tree size.

    youdao

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