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The two sides of resistance-resilience relationship in both aboveground and belowground communities in the Eurasian steppe

文献类型： 外文期刊

作者： Yang, Wei 1 ; Yang, Junjie 2 ; Fan, Yi 1 ; Guo, Quankuan 1 ; Jiang, Nana 1 ; Babalola, Olubukola Oluranti 3 ; Han, Xingguo 2 ; Zhang, Ximei 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Dryland Agr, Minist Agr, Beijing 100081, Peoples R China

2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China

3.North West Univ, Fac Nat & Agr Sci, Food Secur & Safety Niche Area, Private Bag X2046, ZA-2735 Mmabatho, South Africa

关键词： mowing; N addition; resilience; resistance; resistance-resilience relationship

期刊名称：NEW PHYTOLOGIST （ 影响因子：9.4； 五年影响因子：10.5 ）

ISSN： 0028-646X

年卷期： 2023 年 239 卷 1 期

页码：

收录情况： SCI

摘要： The ongoing nitrogen (N) deposition has led to profound changes in aboveground and belowground ecosystems. However, the stability of plant and soil microbial community toward N addition in terms of resistance and resilience is less understood. We established a long-running field trial (2008-2018) in a series of N applications in combination with a mowing and fencing (unmown) treatment in a semiarid steppe. We assessed the resistance via ongoing N treatment of one subplot and the resilience via discontinuing N treatment in another to promote natural recovery since 2014. Plant resistance was negatively correlated with N application rate, while microbial resistance was independent of N rate. Mowing significantly reduced plant resistance and resilience, reduced soil microbial resistance but improved its resilience. Generally, plants are more resili-ent but less resistant to N than soil microbes. The two sides of resistance-resilience relation-ship were revealed: trade-offs exist between resistance and resilience for both plants and microbes at the community level; and trade-offs between resistance and resilience cannot be scaled down to species/group level. This study provided an important theoretical basis for the recovery and conservation of semiarid steppe and new insight into resistance-resilience relationship.

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