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

第一作者： Yang, Wei

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

作者机构：

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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