Climate Change Data Portal
DOI | 10.1111/gcb.12802 |
How inhibiting nitrification affects nitrogen cycle and reduces environmental impacts of anthropogenic nitrogen input | |
Qiao, Chunlian1,2; Liu, Lingli1; Hu, Shuijin3; Compton, Jana E.4; Greaver, Tara L.5; Li, Quanlin6 | |
发表日期 | 2015-03-01 |
ISSN | 1354-1013 |
卷号 | 21期号:3页码:1249-1257 |
英文摘要 | Anthropogenic activities, and in particular the use of synthetic nitrogen (N) fertilizer, have doubled global annual reactive N inputs in the past 50-100years, causing deleterious effects on the environment through increased N leaching and nitrous oxide (N2O) and ammonia (NH3) emissions. Leaching and gaseous losses of N are greatly controlled by the net rate of microbial nitrification. Extensive experiments have been conducted to develop ways to inhibit this process through use of nitrification inhibitors (NI) in combination with fertilizers. Yet, no study has comprehensively assessed how inhibiting nitrification affects both hydrologic and gaseous losses of N and plant nitrogen use efficiency. We synthesized the results of 62 NI field studies and evaluated how NI application altered N cycle and ecosystem services in N-enriched systems. Our results showed that inhibiting nitrification by NI application increased NH3 emission (mean: 20%, 95% confidential interval: 33-67%), but reduced dissolved inorganic N leaching (-48%, -56% to -38%), N2O emission (-44%, -48% to -39%) and NO emission (-24%, -38% to -8%). This amounted to a net reduction of 16.5% in the total N release to the environment. Inhibiting nitrification also increased plant N recovery (58%, 34-93%) and productivity of grain (9%, 6-13%), straw (15%, 12-18%), vegetable (5%, 0-10%) and pasture hay (14%, 8-20%). The cost and benefit analysis showed that the economic benefit of reducing N's environmental impacts offsets the cost of NI application. Applying NI along with N fertilizer could bring additional revenues of $163ha(-1)yr(-1) for a maize farm, equivalent to 8.95% increase in revenues. Our findings showed that NIs could create a win-win scenario that reduces the negative impact of N leaching and greenhouse gas production, while increases the agricultural output. However, NI's potential negative impacts, such as increase in NH3 emission and the risk of NI contamination, should be fully considered before large-scale application. |
英文关键词 | cost-benefit analysis;ecosystem services;N2O emission;NH3 emission;nitrogen fertilizer;nitrogen leaching;nitrogen management;NO emission |
语种 | 英语 |
WOS记录号 | WOS:000349896400020 |
来源期刊 | GLOBAL CHANGE BIOLOGY
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/61267 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.N Carolina State Univ, Dept Plant Pathol, Raleigh, NC 27695 USA; 4.US EPA, Western Ecol Div, Corvallis, OR 97333 USA; 5.US EPA, Natl Ctr Environm Assessment, Res Triangle Pk, NC 27695 USA; 6.Cedars Sinai Med Ctr, Dept Med, Los Angeles, CA 90048 USA |
推荐引用方式 GB/T 7714 | Qiao, Chunlian,Liu, Lingli,Hu, Shuijin,et al. How inhibiting nitrification affects nitrogen cycle and reduces environmental impacts of anthropogenic nitrogen input[J]. 美国环保署,2015,21(3):1249-1257. |
APA | Qiao, Chunlian,Liu, Lingli,Hu, Shuijin,Compton, Jana E.,Greaver, Tara L.,&Li, Quanlin.(2015).How inhibiting nitrification affects nitrogen cycle and reduces environmental impacts of anthropogenic nitrogen input.GLOBAL CHANGE BIOLOGY,21(3),1249-1257. |
MLA | Qiao, Chunlian,et al."How inhibiting nitrification affects nitrogen cycle and reduces environmental impacts of anthropogenic nitrogen input".GLOBAL CHANGE BIOLOGY 21.3(2015):1249-1257. |
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