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树干胸高处总断面积、总边材面积和当年的边材面积与叶重、叶面积的关系的研究结果表明;在黄栎(Quercus velulina)和白栎(Quercus alba)中,用当年的边材面积(用CSA表示)推测叶重和叶面积,始终要比用树干胸高总断面积或总边材面积准确得多。采用线性模型来表示树干与叶的关系的特性,我们发现,在黄栎中,树干胸高处总断面积、总边村面积和CSA三者对于推测叶重、叶面积的准确性基本一致;但在白栎中。用CSA推测叶重、叶面积其准确性最高。对于各树种,采用非线性模型可提高CSA推测叶面积的准确性。
The results of the study on the relationship between the total area at the chest height of the trunk, the total sapwood area, the area of sapwood and the leaf weight and leaf area of the year indicated that in the Quercus velulina and Quercus alba, The material area (expressed as CSA) speculates that leaf weight and leaf area are always much more accurate than the total area of the chest height of the trunk or the total sapwood area. Using the linear model to characterize the relationship between tree trunks and leaves, we found that the total area of chest height, total edge area and CSA in trunk of Quercus acutissima are basically the same for estimating leaf weight and leaf area. However, Among the white oaks. Speculation of leaf weight with CSA leaf area the highest accuracy. For each tree species, a non-linear model can be used to improve the accuracy of CSA speculated leaf area.