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本文研究了栎树胸高处全干面积、边材面积和当年边材面积与叶重、叶面积之间的关系。阐明了当年边材面积较全干面积和边材面积更能表示叶重和叶面积。在一组线型公式描绘树干和树叶关系时,发现上述三种方法所表示的黑栎叶重和叶面积的能力是有区别的。然而,当年边材面积却是这三种方法中最好的一种。本试验又用一组非线型公式来强调当年边材对叶面积和叶重量的表示能力。
The paper studied the dry area of the oak chest, the area of sapwood and the relationship between the area of sapwood and leaf weight and leaf area. It is clarified that the area of sapwood is more capable of expressing leaf weight and leaf area than that of sapwood and sapwood. When a set of linear equations characterize the relationship between tree trunks and leaves, it is found that there is a difference in the ability of the above three methods to represent leaf weight and leaf area of black oaks. However, the area of sapwood was the best of these three methods. This experiment also uses a set of non-linear formulas to emphasize the ability of sapwood to represent leaf area and leaf weight at that time.