CAJ | 학술논문

叶面积是树木生长模型和树木的生理过程的一个重要参数.根据叶重量估计叶面积.本文以我国南方主要树种桉树为对象,实测了从25株桉树上摘取的455片桉树叶子的重量和面积,分别建立了基于叶鲜重的嫩叶与成熟叶单叶面积预测模型.其中80%的数据用于建模,20%的数据用于模型验证.基于模型拟合效果、误差和残差分布,确定了成熟叶和嫩叶的叶面积模型分别为幂函数和线性方程.经检验,模型精度均达95%以上.建立的模型为估计单叶面积提供了一个简单可靠的方法,并且在桉树的结构-功能模型研究中有应用潜力.
협면적시수목생장모형화수목적생리과정적일개중요삼수.근거협중량고계협면적.본문이아국남방주요수충안수위대상,실측료종25주안수상적취적455편안수협자적중량화면적,분별건립료기우협선중적눈협여성숙협단협면적예측모형.기중80%적수거용우건모,20%적수거용우모형험증.기우모형의합효과、오차화잔차분포,학정료성숙협화눈협적협면적모형분별위멱함수화선성방정.경검험,모형정도균체95%이상.건립적모형위고계단협면적제공료일개간단가고적방법,병차재안수적결구-공능모형연구중유응용잠력.
Leaf area is an important parameter for modeling tree growth and physiological processes of trees. The single young and mature leaf area estimation models of eucalyptus were developed based on leaf fresh weight. In total, leaf area and leaf weight were measured from 455 fresh leaves of 25 trees of eucalyptus in southern China. The majority of the data (80%) were used for model calibration, and the remaining data (20%) were used for model validation. The linear, compound and power models were tested. Based on goodness of fit, prediction ability and residual performance, we found that linear and power models could best describe the relationship between leaf area and weight for young leaf and mature leaf, respectively. The study provides a simple and reliable method for estimating single-leaf area, which has a good potential in the functional-structural model of eucalyptus.