Leaf morphology along environmental gradients in Hawaiian Metrosideros polymorpha
Leaf morphology along environmental gradients in Hawaiian Metrosideros polymorpha
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夏威夷 Metrosideros polymorpha 沿环境梯度的叶片形态
DOI：
10.2307/2389106
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发表时间：
1994
期刊：
影响因子：
2.1
通讯作者：
P. Vitousek
中科院分区：
文献类型：
--
作者：
J. Geeske;G. Aplet;P. Vitousek
我们确定了分布广泛的夏威夷种Metrosideros polymorpha的叶形态沿着独立的海拔梯度，降水量和基板年龄的变化模式。单位面积的叶质量、叶大小和叶毛数量都沿这些梯度沿着独立地变化。最重要的是，单位面积的叶质量增加，叶片大小减小，和毛的数量增加，从海拔70至2350米。在高海拔地区，毛占叶质量的35%。
We determined patterns of variation in leaf morphology along independent gradients of elevation, precipitation, and substrate age for the wide-ranging Hawaiian species Metrosideros polymorpha. Leaf mass per unit area, leaf size, and the quantity of leaf pubescence all varied significantly and independently along these gradients. Most importantly, leaf mass per area increased, leaf size decreased, and the amount of pubescence increased with increasing elevation from 70 to 2350 m. Pubescence accounted for up to 35 percent of leaf mass in the high elevation sites.