| 杉木叶形态特征与叶面积估算模型 |
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| 引用本文： | 彭曦,闫文德,王光军,赵梅芳.杉木叶形态特征与叶面积估算模型[J].生态学报,2018,38(10):3569-3580. |
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| 作者姓名： | 彭曦 闫文德 王光军 赵梅芳 |
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| 作者单位： | 中南林业科技大学生命科学与技术学院;湖南会同杉木林国家重点野外科学观测研究站;南方林业生态应用技术国家工程实验室 |
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| 基金项目： | 国家林业公益性行业科研专项（201404316）；杉木叶脉特征与比叶性状的关联分析及过程调控研究（31600355）；湖南省科技计划项目（2015SK20022） |
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| 摘 要： | 植物叶片是碳水交换和能量平衡过程最重要的场所,是农林生产经营中的模型估算以及物种结构变异-功能适应机制分析的关键参考量。采用游标卡尺和手持叶面积仪,测量杉木(Cunninghamia lanceolata)单叶叶长(LL)、最大叶宽(LW_(max))、最大叶厚(LT_(max))3个直测指标,和叶面积(LA)、平均叶宽(LW_(mean))、平均叶厚(LT_(mean))、叶延长率(LE)和叶周长(LP)5个间接转算指标。分析8个形态学指标的统计分布及其相关性,用多变量线性回归模型和非线性回归指数模型对7个形态学指标和杉木单叶叶面积进行拟合,结果表明:杉木单叶面积大部分值(95%CI)分布在0.758—0.836 cm~2,其叶面积的变异程度最大(CV=0.513),叶长、叶宽与叶面积相关性达到极显著(r=0.896,0.682)。拟合LA的多元线性模型为:Y=-0.388+0.165X_1-0.023X_2+1.453X_3(R~2=0.981,SE=0.053),X_1—X_3分别为LP、LE、LW_(mean)。从简便性上考虑,LL的单变量指数模型适合对LA进行估算:LA=0.1×(1+LL)~(1.398)(R~2=0.77,!~2=0.39)。研究结果为准确估测其他叶片功能性状指标提供了方法,为杉木叶面积估算模型提供了基础数据。
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| 关 键 词： | 杉木 形态特征 叶面积 模型 |
| 收稿时间： | 2017/4/13 0:00:00 |
| 修稿时间： | 2017/12/29 0:00:00 |
Leaf morphological characteristics and leaf area estimation model for Cunninghamia lanceolata |
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| PENG Xi,YAN Wende,WANG Guangjun and ZHAO Meifang.Leaf morphological characteristics and leaf area estimation model for Cunninghamia lanceolata[J].Acta Ecologica Sinica,2018,38(10):3569-3580. |
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| Authors: | PENG Xi YAN Wende WANG Guangjun and ZHAO Meifang |
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| Institution: | Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China;Huitong National Field Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystem in Huitong, Huitong 418307, China;National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China,Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China;Huitong National Field Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystem in Huitong, Huitong 418307, China;National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China,Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China;Huitong National Field Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystem in Huitong, Huitong 418307, China;National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China and Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China;Huitong National Field Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystem in Huitong, Huitong 418307, China;National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha 410004, China |
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| Abstract: | |
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| Keywords: | Cunninghamia lanceolata morphological characteristics leaf area estimation model |
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