Plant functional traits and nutrient gradients on grassland
Plant functional traits and nutrient gradients on grassland
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DOI：
10.1111/j.1365-2494.2012.00867.x
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发表时间：
2012-09
影响因子：
2.4
通讯作者：
J. Schellberg;L. Pontes
中科院分区：
文献类型：
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作者：
J. Schellberg;L. Pontes
传统的基于植物社会学分类来解释环境和管理对植物区系组成的影响的方法越来越多地伴随着基于性状的方法。植物功能性状（PFT）使我们能够将植物的形态、生理和物候特性与其功能联系起来。近年来，通过对生态学策略、群落组装理论和功能多样性的研究，PFT的研究极大地提高了我们对物种竞争能力、物种丰富度和生态系统功能的认识。本文综述了性状方法在草地科学中的广泛适用性。本文总结了PFT的力量，沿沿着土壤养分梯度的变化，并给出了一个案例的概念概括的相互作用性状的机制，在植物和冠层尺度。我们强调了性状和性状综合征之间的主要权衡，这些性状和性状综合征是植物对营养梯度的反应以及生态系统过程的前景。我们还讨论了多种生态问题的PFT种内变异的作用。功能生态学和草地科学之间的联系也被确定，以建立研究机会。对于管理的草原，我们认为，在这些环节的进展将使我们能够解决广泛和及时的问题，社区动态驱动的资源供应和随之而来的多功能性，这些草原。
The traditional way of interpreting environmental and management effects on floristic composition based on phytoâsociological classification is increasingly accompanied by a traitâbased approach. Plant functional traits (PFT) enable us to link morphological, physiological and phenological plant properties to their functions. Recent research on PFT has significantly improved our understanding on competitive ability of species, resulting species abundance and ecosystem functioning, through investigations of ecological strategies, community assembly theory and functional diversity. In this paper, we review the wide applicability of the trait approach in grassland science. The paper summarizes the power of PFT, the variation along soil nutrient gradients, and gives a caseâbyâcase conceptual generalization of mechanisms of interacting traits at plant and canopy scale. We highlight the main tradeâoffs among traits and trait syndromes that are prospects for plant response to nutrient gradient and consequently for ecosystem processes. We also discuss the role of intraspecific variability in PFT for multiple ecological issues. Links between functional ecology and grassland science are also identified in order to establish research opportunities. For managed grasslands, we believe that progress in these links will allow us to address broad and timely questions regarding community dynamics driven by resource availability and the consequent multifunctionality of these grasslands.