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研究了楸树１－６年生幼林生长与叶面积的相关性。结果证明，幼林的树高、胸径生长，分别与单叶叶面积×树冠系数、单株叶面积呈极显著的线性回归关系。即单叶叶面积×树冠系数或单株叶面积愈大，生长愈快。成果可应用于优树及优良无性系选择、早期测定及速生丰产栽培。
The relationship between the growth and the area of young trees in Catalpa bungei from 1-6 years old was studied. The results showed that tree height and DBH growth of young plantation were significantly linear regression with single leaf area × crown coefficient and single plant leaf area respectively. Namely single leaf area × canopy coefficient or leaf area per plant, the faster growth. The results can be applied to superior tree and excellent clonal selection, early determination and fast-growing and high-yielding cultivation.