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DOI	10.1038/s41467-021-26552-w
	Impact of intensifying nitrogen limitation on ocean net primary production is fingerprinted by nitrogen isotopes
	Buchanan P.J.; Aumont O.; Bopp L.; Mahaffey C.; Tagliabue A.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The open ocean nitrogen cycle is being altered by increases in anthropogenic atmospheric nitrogen deposition and climate change. How the nitrogen cycle responds will determine long-term trends in net primary production (NPP) in the nitrogen-limited low latitude ocean, but is poorly constrained by uncertainty in how the source-sink balance will evolve. Here we show that intensifying nitrogen limitation of phytoplankton, associated with near-term reductions in NPP, causes detectable declines in nitrogen isotopes (δ15N) and constitutes the primary perturbation of the 21st century nitrogen cycle. Model experiments show that ~75% of the low latitude twilight zone develops anomalously low δ15N by 2060, predominantly due to the effects of climate change that alter ocean circulation, with implications for the nitrogen source-sink balance. Our results highlight that δ15N changes in the low latitude twilight zone may provide a useful constraint on emerging changes to nitrogen limitation and NPP over the 21st century. © 2021, The Author(s).
语种	英语
scopus关键词	climate change; net primary production; nitrogen cycle; nitrogen isotope; oceanic circulation; nitrogen; sea water; climate change; metabolism; nitrogen cycle; phytoplankton; sea; Climate Change; Nitrogen Cycle; Nitrogen Isotopes; Oceans and Seas; Phytoplankton; Seawater
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250588
作者单位	Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom; Laboratoire d’Océanographie et du Climat: Expérimentations et Approches Numériques (LOCEAN), IPSL, Sorbonne Université, IRD, CNRS, MNHN, Paris, France; Laboratoire de Météorologie Dynamique (LMD), IPSL, Ecole Normale Supérieure - Université PSL, Sorbonne Université, Ecole Polytechnique, CNRS, Paris, France
推荐引用方式 GB/T 7714	Buchanan P.J.,Aumont O.,Bopp L.,et al. Impact of intensifying nitrogen limitation on ocean net primary production is fingerprinted by nitrogen isotopes[J],2021,12(1).
APA	Buchanan P.J.,Aumont O.,Bopp L.,Mahaffey C.,&Tagliabue A..(2021).Impact of intensifying nitrogen limitation on ocean net primary production is fingerprinted by nitrogen isotopes.Nature Communications,12(1).
MLA	Buchanan P.J.,et al."Impact of intensifying nitrogen limitation on ocean net primary production is fingerprinted by nitrogen isotopes".Nature Communications 12.1(2021).