文献类型：期刊文献

中文题名：基于叶重的桉树单叶面积估计模型(英文)

英文题名：Single leaf area estimation models based on leaf weight of eucalyptus in southern China

作者：刁军[1] 雷相东[1] 洪玲霞[1] 戎建涛[1] 石强[2]

第一作者：刁军

机构：[1]中国林业科学研究院资源信息研究所;[2]深圳职业技术学院

年份：2010

期号：1

起止页码：73-76

中文期刊名：林业研究：英文版

收录：CSTPCD;;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：桉树;叶面积;叶重量;异速模型

外文关键词：eucalyptus; leaf area; leaf weight; allometric model

分类号：S718.43

摘要：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。图4表5参15。
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.