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- Establishement and application of Relative Tree Height Curve Models for Main Tree Species Type in Ji'an 吉安市主要树种类型相对树高曲线模型的应用研究
- relative tree height curve 相对树高曲线
- curve model of relative tree height 相对树高曲线模型
- A study on the drawing and application of tree height curve graph in the investigation and design of the fir and pine plantation cutting area 杉松人工林伐区调查设计中树高曲线图的绘制与应用
- tree height curve 单木树高曲线
- The height curve equation h=a 0d a1 was most accordant the pattern of height with DBH. 对树高曲线方程而言 ,h=a0 da1 最符合火炬松树高随直径变化的规律。
- The graph of weight and height curve often can let a doctor to growing the child of arrearage has more detailed data. 体重与身长曲线的图形常能让医师对于生长迟滞的孩子有更详细的资料。
- Regression equations for different DBH groups are establisheded by studying the relations between tree height and DBH. 6 研究了树高与枝下高的相关关系，选出的各分组回归方程的复相关系数为0.;119-0
- Families mean broad sense heritability for tree height was 86.67 per cent, for DBH 80.01 per cent. 本试验估算的广义家系平均遗传力树高为86.;67%25;胸径80
- In addition,the specific gravity of wood (SGW) decreased with the tree height increasing. 木材的基本密度随树高部位上升而有递减趋势。
- Baita Mountain after years of afforestation, tree height of forest, Qujingtongyou. 白塔山经过多年绿化，树高林密，曲径通幽。
- Crown distribution diagram of the community. The crown depths were the difference between tree height and height of lowest leaves. 群落的树冠分布图树冠深度为树高与叶下高的差值。
- There and then he calculated what force from the earth would hold the moon, and compared it with the known force of gravity at tree height. 当即,当时当地牛顿当即测算了地球要吸引住月球需要多大的力,并将其与果树高度的已知地球引力作了比较。
- The estimated genetic gains for tree height, DBH, bark thickness and tannin content were 25.67%, 38.27, 15.62% and 10.57% respectively. 遗传增益:树高25.;67%25、胸径38
- In trial locations the increment from Yunnan provenance was 13% in tree height and 12% in DBH greater than the mean value of all provenances. 试验林中,云南种源平均高生长大于种源平均值13%25,胸径生长大于种源平均值12%25;
- Mean tree height and DBH in the forest types increased with increasing altitude, when those in the Larix gmelini woodland were excluded. （3）乔木层的直径和树高分布清晰地反映了群落的水平和垂直结构。
- After planting, tree height (H), diameter at ground level (D) and diameter at breast height (DBH) were measured at regular intervals. 造林后，定期观测树高、地径或胸径。
- The order of effects of main characters of increment on volume was brest diameter,tree height,tree crown ,diameter of first main branch and branch height,respectively. 育种主要生长量性状对材积的影响大小顺序是胸径、树高、冠幅、侧枝粗细和枝下高。
- Results showed that tree height and DBH and genetic gains of volume of I108,I107I,I-214 increased 12.53%,14.30%and 36.71%compared with contrast,respectively. 结果表明:I108、I107、I-214的树高、胸径、材积遗传增益;分别比参试群体平均提高12.;53%25、14
- Having little relative height; not high or tall. 低的相对有较小高度的; 不高的
