增温通过减少物种不同步而增强了灌木对群落稳定性的负面影响

IF 5.6 1区环境科学与生态学 Q1 ECOLOGY

Journal of Ecology Pub Date : 2025-07-01 DOI:10.1111/1365-2745.70095

Jiajia Wang, Michel Loreau, Zi Yang, Ziyang Liu, Hanwen Cui, Jingwei Chen, Shuyan Chen, Kun Liu, Yaya Chen, Beenish Naz, Lizhe An, Sa Xiao

引用次数: 0

摘要

大量研究表明，气候变暖和灌木的存在影响了草本植物群落的组成和功能。然而，草本植物群落生物量的时间稳定性如何对增温和灌木存在的组合做出反应，在很大程度上仍未被探索。通过5年野外试验，研究了模拟增温和灌丛对高寒草地群落稳定性的影响及其机制。结果表明，单独增温或灌木单独增温通过降低物种丰富度和时间非同常性来降低群落稳定性。此外，单独增温或灌木单独增温通过降低物种叶片干物质含量的群落加权平均值降低了群落的稳定性。增温与灌木的交互作用通过增加物种同步性对植物群落稳定性产生累积负效应。合成。研究表明，持续的全球变暖和灌丛扩张可能对天然草地功能和服务的稳定性产生负面影响，并强调了物种间的时间非同常性和特征在调节全球变化对生态系统稳定性的影响中的重要性。

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来源期刊

Journal of Ecology 环境科学-生态学

CiteScore

10.90

自引率

5.50%

发文量

207

审稿时长

3.0 months

期刊介绍： Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.