植物元素平衡提高湿地物种性能和群落功能:超越氮和磷的视角

IF 7.6 1区 环境科学与生态学 Q1 ECOLOGY
Ecology Letters Pub Date : 2025-07-17 DOI:10.1111/ele.70152
Zhenjun Zuo, Zhong Wang, Haocun Zhao, Peidong Zhao, Rui Qu, Dan Yu
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引用次数: 0

摘要

了解物种如何优化和稳定它们的元素组,即化学计量稳态(H),对于物种适应不断变化的环境至关重要。物种具有不同程度的化学计量平衡,元素平衡与物种的营养经济策略有关。近年来对氮磷动态平衡的研究为植物适应性与生态系统功能之间的联系提供了一个框架。然而,尽管氮磷以外的生物元素具有完善的生理功能,但人们对这些生物元素的体内平衡影响物种性能和群落功能的机制仍知之甚少。通过对232个湿地84种植物的16种生物元素的分析,发现生物元素浓度越高,植物体内的生物平衡越好。除P外,我们进一步发现HK、HCa和HNa增加了物种生物量、优势度、稳定性和群落生物量。气候、养分供应、群落元素浓度和动态平衡共同调节着沉水植物群落生物量。这些发现扩展了预测植物及其群落对环境变化的适应机制的化学计量学框架。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Plant Elemental Homeostasis Enhances Species Performance and Community Functioning in Wetlands: Looking Beyond Nitrogen and Phosphorus

Plant Elemental Homeostasis Enhances Species Performance and Community Functioning in Wetlands: Looking Beyond Nitrogen and Phosphorus

Understanding how species optimise and stabilise their elementome, namely stoichiometric homeostasis (H), is crucial for species adaptation in changing environments. Species can be stoichiometrically homeostatic to different degrees, and elemental homeostasis is related to species' nutrient economic strategies. Recent studies on N and P homeostasis have provided a framework linking plant fitness to ecosystem functioning. However, the mechanisms by which homeostasis of bioelements beyond N and P affects species performance and community functioning remain poorly understood, despite the well-established physiological functions of these bioelements. Based on 16 bioelements of 84 plant species from 232 wetlands, we found that bioelements with higher concentrations were more homeostatic in plants. Besides P, we further proposed that higher HK, HCa and HNa enhanced species biomass, dominance, stability and community biomass. Climate, nutrient supply, community elemental concentration and homeostasis coregulated community biomass of submerged plants. These findings expand the stoichiometric framework for predicting the adaptative mechanisms of plants and their communities to environmental changes.

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来源期刊
Ecology Letters
Ecology Letters 环境科学-生态学
CiteScore
17.60
自引率
3.40%
发文量
201
审稿时长
1.8 months
期刊介绍: Ecology Letters serves as a platform for the rapid publication of innovative research in ecology. It considers manuscripts across all taxa, biomes, and geographic regions, prioritizing papers that investigate clearly stated hypotheses. The journal publishes concise papers of high originality and general interest, contributing to new developments in ecology. Purely descriptive papers and those that only confirm or extend previous results are discouraged.
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