定高树径测量仪是基于单片机、超声波测距、条形码识别等多种技术而开发研制的在树木确定高度情况下进行测量树木直径的一种新型测量仪器。
Trees s fixed high diameter meter is a new kind measuring instrument, which bases on many kinds of technologies such as the one-chip computer, ultrasonic and bar code discerning.
到达目标后，在圈定好的500米区域内，他们用卷尺，测径规和手持激光设备对所有树木的高度和树围进行测量。
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.
到达目标后，在圈定好的500平方米区域内，他们用卷尺，测径规和手持激光设备对所有树木的高度和树围进行测量。
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.
而在光照和水分供应充足的条件下，榉树的苗木高、地径平均生长量是庇荫、水分供应相对少的2.8倍。
The height and basal diameter growth with sufficient light and water supply was 2.8 times of seedlings under shady conditions and with insufficient water.
容器苗造林效果好于裸根苗造林效果，幼林树高、地径、春梢长都明显好于裸根苗。
The effect of afforestation of container seedling is better than bare root seedling, the height, diameter, spring tip growth of yong tree is better than the afforestation of bare root seedling.
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。
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.
火炬树子株前端水平侧根直径与其地径、冠幅、树高的相关性高于后端水平侧根直径；
The correlation between the diameter of the front lateral root of Staghorn sumac and its basal diameter, crown width and height is more significant than that of the back part of the lateral root.
对广西杉木无性系的总花量与树高、胸径、冠幅、冠高、树冠表面积进行了遗传相关及通径分析分析表明：总花量与生长性状之间的遗传相关系数均为负值；
The gross flowers and height, diameter, crown width, crown height, crown surface of Chinese fir clones in Guangxi area were investigated by genetic correlation analysis and path-coefficient analysis.
对广西杉木无性系的总花量与树高、胸径、冠幅、冠高、树冠表面积进行了遗传相关及通径分析分析表明：总花量与生长性状之间的遗传相关系数均为负值；
The gross flowers and height, diameter, crown width, crown height, crown surface of Chinese fir clones in Guangxi area were investigated by genetic correlation analysis and path-coefficient analysis.
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