不同气候带间成熟林植物叶性状间异速生长关系随功能型的变异

被引:67
作者
祝介东 [1 ,2 ]
孟婷婷 [1 ]
倪健 [1 ]
苏宏新 [1 ]
谢宗强 [1 ]
张守仁 [1 ]
郑元润 [1 ]
肖春旺 [1 ]
机构
[1] 不详
[2] 中国科学院植物研究所植被与环境变化国家重点实验室
[3] 不详
[4] 中国科学院研究生院
[5] 不详
关键词
异速生长; 功能型; 叶片; 叶性状; 叶柄; 地带性气候;
D O I
暂无
中图分类号
Q948 [植物生态学和植物地理学];
学科分类号
071012 ; 0713 ;
摘要
为研究不同生物气候带内植物叶片大小与叶柄干重间的异速生长关系,探讨不同植物功能型对叶内异速生长关系的效应,在黑龙江呼中、吉林长白山、北京东灵山、浙江古田山、湖北神农架和四川都江堰6个地区,选择典型地带性成熟林进行主要木本植物的叶片和叶柄性状的测定与统计分析。结果表明:不同功能型和气候带植物叶片干重、面积、体积均与叶柄干重之间存在着显著的异速生长关系,共同斜率分别为0.82、0.70和0.80,均显著小于1.0。在相同叶柄干重下,灌木较乔木支持更大的叶片体积,但它们支持的叶片干重与叶片面积无显著差异;常绿植物在给定叶柄干重下较落叶植物支持更高的叶片干重与体积,但其支持的叶片面积小于落叶植物;除神农架地区外,在给定叶柄干重下,亚热带的古田山、都江堰地区的植物较温带地区的植物支持更大的叶片干重、面积与体积,而亚热带神农架地区的植物叶柄支持的叶片大小(面积、体积、干重)与温带地区相近。结果表明,叶柄限制了叶片的不断增大(包括面积、体积和干重),叶片和叶柄之间的异速生长关系受功能型、气候带及生境条件的影响。
引用
收藏
页码:687 / 698
页数:12
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