1.
The growth of all the progenies from the clones in the seed orchard have exceeded those from their plus trees in plantations,having an average gain of 9.1%(4.7%~14.1%) for height and 14.5%(9.9%~23%) for DBH.
树高增长9.1%,胸径增加14.5%。
2.
Outside and inside bark diameter at breast height for Platycladus orientalis and Pinus tabulaeformis in the Beijing area
北京地区侧柏、油松带皮胸径与去皮胸径的关系
3.
Research on the Model of Ground and Breast Diameters of Slash Pine(Pinus elliotti.) Plantation
湿地松人工林地径与胸径树高模型的研究
4.
large sapling
大幼树(高10英尺以上, 胸径4英寸以下)
5.
V.Salvador into ZhejiangProvince was started in 1972.Four-year-old trees could be as tall as 8.36 m witha diameter of 10.36 cm at breast height.
种植的4年生树高达8.36米、胸径10.36厘米。
6.
GAM Model for Diameter and Height Growth of Pinus yunnanensis in Middle Regions of Yunnan Province
滇中云南松胸径和树高生长的GAM模型
7.
A40 meter observation tower towers aloft on the region.
林中树木胸径最大可达140厘米、高达37米。
8.
correlationcoefficient (r) between the height growth and DBH growth was 0.6--0.7;
树高与胸径生长的相关系数γ值为0.6—0.7;
9.
A STUDY ON SIMULATING PREDICTIVE MODEL OF MEAN DBH FOR BAMBOO STANDS
毛竹林林分平均胸径模拟预测模型的研究
10.
Effect of Site Condition on Yield and Breast Diameter of Carya hunanensis
立地条件对湖南山核桃产量与胸径的影响
11.
Variable Relationship between Tree Age and Diameter at Breast Height for Natural Forests in Changbai Mountains
长白山地区天然林林木年龄与胸径的变动关系
12.
Discussion on the impact of zoning sites and the average diameter on stand volume
谈区划布点和平均胸径对林分蓄积的影响
13.
Application of Back-Propagation Network to the Prediction of Stand Average Breast Diameter in Growth Progress
BP神经网络在林分平均胸径生长预估中的应用
14.
Relationships between diameter at breast height and cone/seed character of Pinus thunbergii population in Yantai coastal protection forest
烟台海防林黑松种群胸径与种实性状关系
15.
Analysis on the Physiological Characteristic of Populus euphratica with Different DBH under Drought Stress
干旱胁迫下不同胸径胡杨生理特点分析
16.
Effect of simulated N and S combined deposition on DBH of Eucalyptus dunnii
邓恩桉胸径生长对模拟硫、氮复合沉降的响应
17.
Individual DBH Growth Model of Pinus tabulaeformis Young-Middle Aged Plantation
油松中幼人工林单木胸径生长模型研究
18.
Study on the Correlation Between Ground Diameter and DBH of Pinus sylvestris var.mongolica on Sand Land of Northwest Liaoning and its Application
辽西北沙地樟子松地径与胸径相关关系及其应用研究