Forb stability, dwarf shrub stability and species asynchrony regulate ecosystem stability along an experimental precipitation gradient in a semi-arid desert grassland

IF 4.2 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2024-03-05 DOI:10.1111/plb.13622
L. Zhang, J. Gao, R. Zhao, J. Wang, L. Hao, M. Wang
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引用次数: 0

Abstract

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在半干旱荒漠草原上,草本植物稳定性、矮灌木稳定性和物种异步性沿着试验性降水梯度调节生态系统稳定性。
降水模式的变化可能会影响植物的生物多样性,从而影响生态系统的稳定性。然而,降水机制变化对生态系统稳定性的影响及其潜在机制仍不清楚。我们在半干旱荒漠草地上进行了为期 3 年的田间操作实验,采用 5 种降水处理(环境生长季降水量的 -40%、-20%、0%(CK)、+20% 和 +40%),利用结构方程模型研究降水变化对功能群稳定性、物种异步性和多样性的影响,以及生态系统稳定性的潜在机制。降水量的变化对群落生物量和功能群生物量有不同的影响。此外,生态系统的稳定性主要受禁草稳定性的驱动(路径系数=0.79)。降水量的变化对土壤溶解无机氮(P
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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