回归方程法测定紫荆叶面积的比较研究

以紫荆成熟叶片为材料,建立起紫荆的叶面积与其叶长、叶宽、以及叶长×叶宽之间的和幂函数、指数函数、线性回归方程。结果表明,叶长与叶面积、叶宽与叶面积、叶长宽积与叶面积的幂函数、指数函数、线性函数均呈正相关关系。9个回归方程均可用于测算紫荆的叶面积,其中以叶长宽积和叶面积的线性方程测算结果更为精确。

Comparison Study on Regression Equation of Leaf Area of Cercis chinensis

In this article, Cercis chinensis Bunge leaves were used as material, to establish power function, exponent function and liner function regression equations between leaf area and leaf length, leaf width, or product of leaf length and leaf width for Cercis chinensis Bunge. The results showed that they all take on the relations of positive correlation. All the nine regression equations could be used to measure the area of Cercis chinensis Bunge leaves, of which measure results of liner regression equations between width of leaf, length of leaf multiplies width of leaf and area of leaf were more accurate.