The worldwide leaf economics spectrum
The worldwide leaf economics spectrum
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DOI：
10.1038/nature02403
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发表时间：
2004-04-22
期刊：
影响因子：
64.8
通讯作者：
Villar, R
中科院分区：
文献类型：
--
作者：
Wright, IJ;Reich, PB;Villar, R
汇集了2,548个物种和175个地点的叶性状数据，我们首次在全球范围内描述了一个由关键化学，结构和生理特性组成的叶经济学的通用谱。光谱运行从快速到缓慢的投资回报的营养物质和干质量的叶子，并在很大程度上独立于生长形式，植物功能类型或生物群系。一般来说，沿着谱的类别比植物功能类型更好地描述了全球范围内的叶经济变化，因为功能类型在其叶性状上基本上重叠。总体而言，气候对叶性状和性状关系的调节是令人惊讶的温和的，尽管可以看到一些引人注目的和重要的模式。可靠的量化叶经济谱及其与气候的相互作用，将证明是有价值的模拟养分通量和植被边界下不断变化的土地利用和气候。
Bringing together leaf trait data spanning 2,548 species and 175 sites we describe, for the first time at global scale, a universal spectrum of leaf economics consisting of key chemical, structural and physiological properties. The spectrum runs from quick to slow return on investments of nutrients and dry mass in leaves, and operates largely independently of growth form, plant functional type or biome. Categories along the spectrum would, in general, describe leaf economic variation at the global scale better than plant functional types, because functional types overlap substantially in their leaf traits. Overall, modulation of leaf traits and trait relationships by climate is surprisingly modest, although some striking and significant patterns can be seen. Reliable quantification of the leaf economics spectrum and its interaction with climate will prove valuable for modelling nutrient fluxes and vegetation boundaries under changing land-use and climate.