Cross‐species patterns in the coordination between leaf and stem traits, and their implications for plant hydraulics
Cross‐species patterns in the coordination between leaf and stem traits, and their implications for plant hydraulics
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DOI：
10.1111/j.1399-3054.2006.00699.x
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发表时间：
2006-07
影响因子：
6.4
通讯作者：
I. Wright;D. Falster;M. Pickup;M. Westoby
中科院分区：
文献类型：
--
作者：
I. Wright;D. Falster;M. Pickup;M. Westoby
通过识别和理解植物性状变异的生态学重要维度，我们可以深入了解为什么特定性状组合受到青睐，以及物种间性状差异的影响。在这里，我们描述了几个鲜为人知的叶和茎性状之间的关系，从几个澳大利亚植被类型的物种。较低的木材密度（WD）的物种一致部署更多的叶面积每单位拍摄质量（LA/SM），在森林覆盖的网站内的大叶种。较高的LA/SM可能会导致更快的生长速度，这意味着以前未被认识到的叶大小和WD的种间变异的影响。叶子：边材面积比是影响植物水分利用策略的几个重要性状之一，然而，我们仍然不太了解植物在水力特性和叶片大小、WD和LM/SM等性状协调的程度上是如何变化的，以及这种变化的含义可能是什么。
Through identifying and understanding ecologically important dimensions of plant trait variation we gain insight into why particular trait combinations are favoured and into the implications of trait differences among species. Here, we describe relationships among several poorly understood leaf and stem traits across species from several Australian vegetation types. Species with lower wood density (WD) consistently deployed more leaf area per unit shoot mass (LA/SM), as did the larger-leaved species within forested sites. Higher LA/SM is likely to lead to faster growth rates, implying a previously unrecognized implication to interspecific variation in leaf size and WD. Leaf : sapwood area ratio is one of several important traits contributing to a plant's water-use strategy, yet, we still only poorly understand how plants vary in the extent to which hydraulic properties and traits such as leaf size, WD and LM/SM are coordinated, and what the implications of this variation may be.