Grassland degradation amplifies the negative effect of nitrogen enrichment on soil microbial community stability

© 2024 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 30(2024), 3 vom: 14. März, Seite e17217
1. Verfasser: Zhang, Hongjin (VerfasserIn)
Weitere Verfasser: Chen, Weile, Dong, Lizheng, Wang, Wei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article asynchrony diversity grassland degradation microbial abundance nitrogen enrichment plant species associations stability Nitrogen mehr... N762921K75 Soil
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520 |a Although nitrogen (N) enrichment is known to threaten the temporal stability of aboveground net primary productivity, it remains unclear how it alters that of belowground microbial abundance and whether its impact can be regulated by grassland degradation. Using data from N enrichment experiments at temperate grasslands with no, moderate, severe, and extreme degradation degrees, we quantified the temporal stability of soil microbial abundance (hereafter 'microbial community stability') using the ratio of the mean quantitative PCR to its standard deviation over 4 years. Both bacterial and fungal community stability sharply decreased when N input exceeded 30 g N m-2  year-1 in non-degraded grasslands, whereas a reduction in this threshold occurred in degraded grasslands. Microbial species diversity, species asynchrony, and species associations jointly altered microbial community stability. Interestingly, the linkages between plant and microbial community stability were strengthened in degraded grasslands, suggesting that plants and soil microbes might depend on each other to keep stable communities in harsh environments. Our findings highlighted the importance of grassland degradation in regulating the responses of microbial community stability to N enrichment and provided experimental evidence for understanding the relationships between plant and microbial community stability 
650 4 |a Journal Article 
650 4 |a asynchrony 
650 4 |a diversity 
650 4 |a grassland degradation 
650 4 |a microbial abundance 
650 4 |a nitrogen enrichment 
650 4 |a plant 
650 4 |a species associations 
650 4 |a stability 
650 7 |a Nitrogen  |2 NLM 
650 7 |a N762921K75  |2 NLM 
650 7 |a Soil  |2 NLM 
700 1 |a Chen, Weile  |e verfasserin  |4 aut 
700 1 |a Dong, Lizheng  |e verfasserin  |4 aut 
700 1 |a Wang, Wei  |e verfasserin  |4 aut 
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773 1 8 |g volume:30  |g year:2024  |g number:3  |g day:14  |g month:03  |g pages:e17217 
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