不同杨树品种冠径比的差异性分析

Difference Analysis of Crown Diameter Ration of Different Poplar Varieties

摘要:

摘要：对32个杨树品种冠幅与胸径比例关系的差异性进行比较，结果表明:不同杨树品种冠径比存在极显著差异，107杨、鲁山杨、W46杨、95杨、895杨等5个品种具有生长快和冠径比小的优点。冠径比在品种选择和密度确定等方面具有一定参考价值。

Abstract:

Abstracts:Comparison was made about differentiation of proportion relation between crown width and diameter at breast height of 32 varieties of poplar.The results showed that the crown diameter ration of different poplar varieties had significant differences. The five varieties of 107,Lushan,W46,95,895 had the advantage of fast growth and low crown diameter ration. So the crown diameter ration could provide reference for the variety selection and density determination.