DOI: 10.1111/gcb.13125
论文题名: Aggravated phosphorus limitation on biomass production under increasing nitrogen loading: A meta-analysis
作者: Li Y. ; Niu S. ; Yu G.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 2 起始页码: 934
结束页码: 943
语种: 英语
英文关键词: Aboveground biomass production
; Belowground biomass production
; Global synthesis
; P limitation
; Plant N concentration
; Plant P concentration
; Terrestrial ecosystem
Scopus关键词: fertilizer
; nitrogen
; phosphorus
; soil
; biomass
; chemistry
; drug effects
; ecosystem
; meta analysis
; plant development
; soil
; Biomass
; Ecosystem
; Fertilizers
; Nitrogen
; Phosphorus
; Plant Development
; Soil
英文摘要: Nitrogen (N) and phosphorus (P), either individually or in combination, have been demonstrated to limit biomass production in terrestrial ecosystems. Field studies have been extensively synthesized to assess global patterns of N impacts on terrestrial ecosystem processes. However, to our knowledge, no synthesis has been done so far to reveal global patterns of P impacts on terrestrial ecosystems, especially under different nitrogen (N) levels. Here, we conducted a meta-analysis of impacts of P addition, either alone or with N addition, on aboveground (AGB) and belowground biomass production (BGB), plant and soil P concentrations, and N : P ratio in terrestrial ecosystems. Overall, our meta-analysis quantitatively confirmed existing notions: (i) colimitation of N and P on biomass production and (ii) more P limitation in tropical forest than other ecosystems. More importantly, our analysis revealed new findings: (i) P limitation on biomass production was aggravated by N enrichment and (ii) plant P concentration was a better indicator of P limitation than soil P availability. Specifically, P addition increased AGB and BGB by 34% and 13%, respectively. The effect size of P addition on biomass production was larger in tropical forest than grassland, wetland, and tundra and varied with P fertilizer forms, P addition rates, or experimental durations. The P-induced increase in biomass production and plant P concentration was larger under elevated than ambient N. Our findings suggest that the global limitation of P on biomass production will become severer under increasing N fertilizer and deposition in the future. © 2016 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61510
Appears in Collections: 影响、适应和脆弱性
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作者单位: Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Li Y.,Niu S.,Yu G.. Aggravated phosphorus limitation on biomass production under increasing nitrogen loading: A meta-analysis[J]. Global Change Biology,2016-01-01,22(2)