Effects of nitrogen deposition on temporal stability and resistance of the alpine steppe plant communities on the Qinghai-Tibetan Plateau

IF 6 1区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY
Ran Zhang , Hao Shen , Shikui Dong , Qiang Yu , Bing Zhang , Jiannan Xiao , Shuai Li , Hui Zuo , Hang Shi , Fengcai He , Ke Zhang , Yuhao Zhang , Chunhui Ma , Yongqi Liu , Xainqi Zhou , Xueqi Li , Mingjie Ran
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引用次数: 0

Abstract

Multidimensional stability is crucial for capturing ecosystem dynamics and maintaining Earth's ecosystem services in response to environmental changes. Recently, nitrogen (N) deposition has increased significantly, particularly in the Qinghai-Tibetan Plateau. However, the impact of N deposition on multidimensional plant community stability remains poorly understood. To address this knowledge gap, this study conducted a 5-year N addition experiment in the alpine steppe of the Qinghai-Tibetan Plateau. The results revealed that N addition decreased the temporal stability of plant communities and rare species, while simultaneously enhancing the resistance of plant communities, dominant and common species. Noteworthy findings were that temporal stability of rare species and species asynchrony were main predictors for the temporal stability of plant community, while resistance of dominant, common and rare species was an important predictor of plant community resistance. The results suggested that species composition and species asynchrony regulated the stability of alpine steppe plant community under N addition. In light of increasing N deposition in the alpine regions, these findings offer a scientific foundation for conservation management of the alpine steppe ecosystem in the future.
氮沉降对青藏高原高寒草原植物群落时间稳定性和抗逆性的影响
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来源期刊
Agriculture, Ecosystems & Environment
Agriculture, Ecosystems & Environment 环境科学-环境科学
CiteScore
11.70
自引率
9.10%
发文量
392
审稿时长
26 days
期刊介绍: Agriculture, Ecosystems and Environment publishes scientific articles dealing with the interface between agroecosystems and the natural environment, specifically how agriculture influences the environment and how changes in that environment impact agroecosystems. Preference is given to papers from experimental and observational research at the field, system or landscape level, from studies that enhance our understanding of processes using data-based biophysical modelling, and papers that bridge scientific disciplines and integrate knowledge. All papers should be placed in an international or wide comparative context.
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