Nutrient Addition Alters Drought Resistance and Resilience Via Forb Abundance in a Temperate Grassland
SSRN, ISSN: 1556-5068
2024
- 137Usage
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Nutrient addition has resulted in profound effects on grassland ecosystems. Yet, the response and ecological mechanisms of grassland ecosystem resistance and resilience in relation to nutrient inputs are not fully understood. We investigated the effects of nutrient addition on resistance and resilience of a temperate grassland during a severe drought event. Our findings demonstrated that nutrient addition significantly alters ecosystem resistance and resilience. The resistance of both the community and forb was decreased by nitrogen (N) addition, while only forb resistance was significantly decreased under phosphorus (P) addition. Interestingly, N addition also hindered the community and forb resilience, whereas community resilience significantly enhanced under P addition. Unexpectedly, even although nutrient addition significantly affected grass biomass, grass resistance and resilience were not significantly altered by nutrient addition. Conversely, forb biomass was not significantly influenced by nutrient addition, but there was a noticeable decrease in forb abundance. Furthermore, structural equation models revealed that nutrient addition affect community drought resistance and resilience by altering the stability dimension of functional groups via forb abundance. Our outcomes highlight the crucial function of forbs in sustaining grassland ecosystem stability in the face of global change. Moreover, it provides crucial scientific evidence for the scientific management and sustainable preservation of ecosystem services in grassland ecosystems under global change.
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