DOI: 10.1111/gcb.13338
论文题名: Using nitrification inhibitors to mitigate agricultural N2O emission: a double-edged sword?
作者: Lam S.K. ; Suter H. ; Mosier A.R. ; Chen D.
刊名: Global Change Biology
出版年: 2017
卷: 23, 期: 2 起始页码: 485
结束页码: 489
语种: 英语
英文关键词: agriculture
; ammonia
; climate change mitigation
; indirect greenhouse gas
; nitrification inhibitor
; nitrous oxide
英文摘要: Nitrification inhibitors show promise in decreasing nitrous oxide (N2O) emission from agricultural systems worldwide, but they may be much less effective than previously thought when both direct and indirect emissions are taken into account. Whilst nitrification inhibitors are effective at decreasing direct N2O emission and nitrate (NO3 –) leaching, limited studies suggest that they may increase ammonia (NH3) volatilization and, subsequently, indirect N2O emission. These dual effects are typically not considered when evaluating the inhibitors as a climate change mitigation tool. Here, we collate results from the literature that simultaneously examined the effects of nitrification inhibitors on N2O and NH3 emissions. We found that nitrification inhibitors decreased direct N2O emission by 0.2–4.5 kg N2O-N ha−1 (8–57%), but generally increased NH3 emission by 0.2–18.7 kg NH3-N ha−1 (3–65%). Taking into account the estimated indirect N2O emission from deposited NH3, the overall impact of nitrification inhibitors ranged from −4.5 (reduction) to +0.5 (increase) kg N2O-N ha−1. Our results suggest that the beneficial effect of nitrification inhibitors in decreasing direct N2O emission can be undermined or even outweighed by an increase in NH3 volatilization. © 2016 John Wiley & Sons Ltd 资助项目: Chen, D.
; Crop and Soil Science Section, Faculty of Veterinary and Agricultural Sciences, The University of MelbourneAustralia
; 电子邮件: delichen@unimelb.edu.au
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61058
Appears in Collections: 影响、适应和脆弱性
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作者单位: Crop and Soil Science Section, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
Recommended Citation:
Lam S.K.,Suter H.,Mosier A.R.,et al. Using nitrification inhibitors to mitigate agricultural N2O emission: a double-edged sword?[J]. Global Change Biology,2017-01-01,23(2)