Research article - Peer-reviewed, 2021
Nitrogen addition mediates the response of foliar stoichiometry to phosphorus addition: a meta-analysis
You, Chengming; Peng, Changhui; Xu, Zhenfeng; Liu, Yang; Zhang, Li; Yin, Rui; Liu, Lin; Li, Han; Wang, Lixia; Liu, Sining; Tan, Bo; Kardol, PaulAbstract
Background Changes in foliar nitrogen (N) and phosphorus (P) stoichiometry play important roles in predicting the effects of global change on ecosystem structure and function. However, there is substantial debate on the effects of P addition on foliar N and P stoichiometry, particularly under different levels of N addition. Thus, we conducted a global meta-analysis to investigate how N addition alters the effects of P addition on foliar N and P stoichiometry across different rates and durations of P addition and plant growth types based on more than 1150 observations. Results We found that P addition without N addition increased foliar N concentrations, whereas P addition with N addition had no effect. The positive effects of P addition on foliar P concentrations were greater without N addition than with N addition. Additionally, the effects of P addition on foliar N, P and N:P ratios varied with the rate and duration of P addition. In particular, short-term or low-dose P addition with and without N addition increased foliar N concentration, and the positive effects of short-term or low-dose P addition on foliar P concentrations were greater without N addition than with N addition. The responses of foliar N and P stoichiometry of evergreen plants to P addition were greater without N addition than with N addition. Moreover, regardless of N addition, soil P availability was more effective than P resorption efficiency in predicting the changes in foliar N and P stoichiometry in response to P addition. Conclusions Our results highlight that increasing N deposition might alter the response of foliar N and P stoichiometry to P addition and demonstrate the important effect of the experimental environment on the results. These results advance our understanding of the response of plant nutrient use efficiency to P addition with increasing N deposition.Keywords
Ecological stoichiometry; Plant nutrient regime; Nutrient resorption efficiency; Soil N and P availability; Global change; Global synthesisPublished in
Ecological processes2021, volume: 10, number: 1, article number: 58
Publisher: SPRINGER
Authors' information
You, Chengming
Sichuan Agricultural University
Peng, Changhui
Northwest AandF University - China
Xu, Zhenfeng
Sichuan Agricultural University
Liu, Yang
Sichuan Agricultural University
Zhang, Li
Sichuan Agricultural University
Yin, Rui
Helmholtz Center for Environmental Research (UFZ)
Liu, Lin
Sichuan Agricultural University
Wang, Lixia
Sichuan Agricultural University
Liu, Sining
Sichuan Agricultural University
Tan, Bo
Sichuan Agricultural University
Swedish University of Agricultural Sciences, Department of Forest Ecology and Management
UKÄ Subject classification
Ecology
Publication Identifiers
DOI: https://doi.org/10.1186/s13717-021-00329-x
URI (permanent link to this page)
https://res.slu.se/id/publ/113511