Higher phosphorus and water use efficiencies and leaf stoichiometry contribute to legume success in drylands

IF 4.6 1区环境科学与生态学 Q1 ECOLOGY Functional Ecology Pub Date : 2024-09-08 DOI:10.1111/1365-2435.14648

Delia M. Acuña-Acosta, Alejandro E. Castellanos, José M. Llano-Sotelo, Jordi Sardans, Josep Peñuelas, José R. Romo-Leon, George W. Koch

引用次数: 0

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较高的磷和水利用效率以及叶片化学计量有助于豆科植物在干旱地区取得成功

豆科植物是全球旱地生态系统中不可或缺的植物，因为它们能增加氮的供应量，因此了解豆科植物对改进气候变化方面的知识和建模至关重要。这项工作研究了索诺拉沙漠生态系统中共生豆科植物和非豆科植物在资源利用效率方面的差异及其与光合作用、光化学、生物元素和化学计量学特征之间的关系。我们发现，豆科植物具有更高的光合速率、内在和季节性水分利用效率（WUE）、磷利用效率（PPUE），以及由叶绿素含量和活性反应中心介导的更高的光利用率，这可能会提高它们的光保护能力。豆科植物可以提高其WUE和PPUE，而氮利用效率（PNUE）没有变化。因此，在这些豆科植物中观察到的研究性状之间的性状关系与研究中的非豆科物种有显著差异。在某些情况下，化学计量有助于作为养分利用效率的指标，并实现功能群的区分。我们的研究结果将豆科植物较高的资源利用效率与其在旱地生态系统中的成功紧密联系起来。在期刊博客上免费阅读本文的通俗摘要。

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来源期刊

Functional Ecology 环境科学-生态学

CiteScore

9.00

自引率

1.90%

发文量

243

审稿时长

4 months

期刊介绍： Functional Ecology publishes high-impact papers that enable a mechanistic understanding of ecological pattern and process from the organismic to the ecosystem scale. Because of the multifaceted nature of this challenge, papers can be based on a wide range of approaches. Thus, manuscripts may vary from physiological, genetics, life-history, and behavioural perspectives for organismal studies to community and biogeochemical studies when the goal is to understand ecosystem and larger scale ecological phenomena. We believe that the diverse nature of our journal is a strength, not a weakness, and we are open-minded about the variety of data, research approaches and types of studies that we publish. Certain key areas will continue to be emphasized: studies that integrate genomics with ecology, studies that examine how key aspects of physiology (e.g., stress) impact the ecology of animals and plants, or vice versa, and how evolution shapes interactions among function and ecological traits. Ecology has increasingly moved towards the realization that organismal traits and activities are vital for understanding community dynamics and ecosystem processes, particularly in response to the rapid global changes occurring in earth’s environment, and Functional Ecology aims to publish such integrative papers.