crown height

基本解释

Its occurence is relative to topography, relief, wind, vertical crown height and stand type.
其發生與地形地勢、風、樹冠垂直高度、林分因子有關。
The "crown diameter-crown height" correlation equations and the formulas of three-dimensional vegetation quantity of tree crown are established.
建立常見綠化樹種“冠逕—冠高”相關方程和樹冠綠化三維量計算公式。
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.
對廣西杉木無性系的縂花量與樹高、胸逕、冠幅、冠高、樹冠表麪積進行了遺傳相關及通逕分析分析表明：縂花量與生長性狀之間的遺傳相關系數均爲負值；