DOI: 10.1007/s10584-017-1976-2
Scopus记录号: 2-s2.0-85018344838
论文题名: Roles of nitrogen, phosphorus, and potassium fertilizers in carbon sequestration in a Chinese agricultural ecosystem
作者: Zhao H. ; Sun B. ; Lu F. ; Wang X. ; Zhuang T. ; Zhang G. ; Ouyang Z.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2017
卷: 142, 期: 2018-03-04 起始页码: 587
结束页码: 596
语种: 英语
Scopus关键词: Ecosystems
; Fertilizers
; Grain (agricultural product)
; Nitrogen
; Nitrogen fertilizers
; Phosphorus
; Potassium
; Potassium fertilizers
; Agricultural ecosystems
; Carbon sequestration
; Fertilization rates
; Integrated effects
; N and P fertilizer
; Rice (oryza sativa)
; Synthetic fertilizers
; Unfertilized soils
; Soils
; agricultural ecosystem
; agricultural soil
; carbon sequestration
; fertilizer application
; nitrogen
; phosphorus
; potassium
; soil carbon
; China
; Oryza sativa
; Triticum aestivum
; Zea mays
英文摘要: Previously, most carbon (C) sequestration research focused on the effects of nitrogen (N) fertilization on soil organic C sequestration rather than on the separate effects of synthetic phosphorus (P) and potassium (K) and the integrated effect of NPK. In this study, a meta-analysis was conducted to synthesize 84 long-term trials with 385 paired comparisons to quantify the variance of soil C storage in response to synthetic fertilizer addition. Compared with unfertilized soil, higher C storage was observed in soils fertilized with NPK, N, P, and K (10, 5, 5, and 2%, respectively) at a depth of 0-20 cm, and changes in soil C storage were dependent on the cropping system, experimental duration, geographic region, and fertilization rate. Soils fertilized with NPK and N in wheat (Triticum aestivum) and maize (Zea mays) cropping systems in the northern region of China had greater soil C storage. The greatest increase in C storage occurred in soils fertilized with P in rice (Oryza sativa) and wheat cropping systems. Additionally, the ratio of N/P added as fertilizer was negatively related to soil C storage. When N, P, and K were applied together, N and P fertilizers explained 49 and 11% of the variability in soil C storage, while the contribution of K was unclear. This study reveals the important roles of P and N fertilizers in soil C sequestration. We estimated that fertilizer use resulted in the sequestration of 947.2-1093 Tg C in China’s croplands from 1980 to 2014. © Springer Science+Business Media Dordrecht 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83993
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Jinan Environmental Research Institute, Jinan, China; Institute of Agricultural Engineering, Jiangxi Academy of Agricultural Sciences, Nanchang, China; Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesBeijing, China; Joint Center for Global Change Studies (JCGCS)Beijing, China
Recommended Citation:
Zhao H.,Sun B.,Lu F.,et al. Roles of nitrogen, phosphorus, and potassium fertilizers in carbon sequestration in a Chinese agricultural ecosystem[J]. Climatic Change,2017-01-01,142(2018-03-04)