气候变化领域集成服务门户(CCPortal): Cleaning up nitrogen pollution may reduce future carbon sinks

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DOI	10.1016/j.gloenvcha.2017.10.007
	Cleaning up nitrogen pollution may reduce future carbon sinks
	Gu B.; Ju X.; Wu Y.; Erisman J.W.; Bleeker A.; Reis S.; Sutton M.A.; Lam S.K.; Smith P.; Oenema O.; Smith R.I.; Lu X.; Ye X.; Chen D.
发表日期	2018
ISSN	0959-3780
起始页码	56
结束页码	66
卷号	48
英文摘要	Biosphere carbon sinks are crucial for reducing atmospheric carbon dioxide (CO2) concentration to mitigate global warming, but are substantially affected by the input of reactive nitrogen (Nr). Although the effects of anthropogenic CO2 emission and nitrogen deposition (indicated by Nr emission to atmosphere) on carbon sink have been studied, it is unclear how their ratio (C/N) changes with economic development and how such change alters biosphere carbon sinks. Here, by compiling datasets for 132 countries we find that the C/N ratio continued to increase despite anthropogenic CO2 and Nr emissions to atmosphere both showing an asymmetric para-curve with economic growth. The inflection points of CO2 and Nr emissions are found at around $15,000 gross domestic product per capita worldwide. Economic growth promotes the use of Nr and energy, while at the same time increases their use efficiencies, together resulting in occurrences of inflection points of CO2 and Nr emissions. Nr emissions increase slower but decrease faster than that of CO2 emissions before and after the inflection point, respectively. It implies that there will be relatively more anthropogenic CO2 emission but less N deposition with economic growth. This may limit biosphere carbon sink because of relative shortage of Nr. This finding should be integrated/included in global climate change modelling. Efforts, such as matching N deposition with carbon sequestration on regional scale, to manage CO2 and Nr emissions comprehensively to maintain a balance are critical. © 2017 Elsevier Ltd
英文关键词	Carbon sink; Climate change; CO2 emission; Economic development; Nitrogen deposition; Stoichiometry
学科领域	anthropogenic effect; atmosphere-biosphere interaction; biogeochemical cycle; carbon dioxide; carbon sequestration; carbon sink; climate change; economic development; economic growth; environmental economics; global climate; global warming; Gross Domestic Product; nitrogen; stoichiometry
语种	英语
scopus关键词	anthropogenic effect; atmosphere-biosphere interaction; biogeochemical cycle; carbon dioxide; carbon sequestration; carbon sink; climate change; economic development; economic growth; environmental economics; global climate; global warming; Gross Domestic Product; nitrogen; stoichiometry
来源期刊	Global Environmental change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/117193
作者单位	Department of Land Management, Zhejiang University, Hangzhou, 310058, China; School of Agriculture and Food, The University of MelbourneVictoria 3010, Australia; Laboratory of Rural-Urban Construction Land Economical and Intensive Use, Ministry of Land and Resources, Beijing, 100812, China; College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; Policy Simulation Laboratory, Zhejiang University, Hangzhou, 310058, China; Louis Bolk Institute, Hoofdstraat 24, Driebergen, LA 3972, Netherlands; VU Amsterdam, De Boelelaan 1091, Amsterdam, HV 1081, Netherlands; Netherlands Environmental Assessment Agency (PBL), Postbus30314, Netherlands; NERC Centre for Ecology & Hydrology, Bush Estate, Midlothian, Penicuik, EH26 0QB, United Kingdom; University of Exeter Medical School, Knowledge Spa, Truro, TR1 3HD, United Kingdom; Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, United Kingdom; Department of S...
推荐引用方式 GB/T 7714	Gu B.,Ju X.,Wu Y.,et al. Cleaning up nitrogen pollution may reduce future carbon sinks[J],2018,48.
APA	Gu B..,Ju X..,Wu Y..,Erisman J.W..,Bleeker A..,...&Chen D..(2018).Cleaning up nitrogen pollution may reduce future carbon sinks.Global Environmental change,48.
MLA	Gu B.,et al."Cleaning up nitrogen pollution may reduce future carbon sinks".Global Environmental change 48(2018).