气候变化领域集成服务门户(CCPortal): Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion

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DOI	10.1038/s41467-020-20470-z
	Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion
	Terhaar J.; Lauerwald R.; Regnier P.; Gruber N.; Bopp L.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Net primary production (NPP) is the foundation of the oceans’ ecosystems and the fisheries they support. In the Arctic Ocean, NPP is controlled by a complex interplay of light and nutrients supplied by upwelling as well as lateral inflows from adjacent oceans and land. But so far, the role of the input from land by rivers and coastal erosion has not been given much attention. Here, by upscaling observations from the six largest rivers and using measured coastal erosion rates, we construct a pan-Arctic, spatio-temporally resolved estimate of the land input of carbon and nutrients to the Arctic Ocean. Using an ocean-biogeochemical model, we estimate that this input fuels 28–51% of the current annual Arctic Ocean NPP. This strong enhancement of NPP is a consequence of efficient recycling of the land-derived nutrients on the vast Arctic shelves. Our results thus suggest that nutrient input from the land is a key process that will affect the future evolution of Arctic Ocean NPP. © 2021, The Author(s).
语种	英语
scopus关键词	carbon; dissolved organic matter; fuel; nitrogen; organic carbon; organic nitrogen; phosphorus; river water; silicate; biogeochemical cycle; coastal erosion; oceanic circulation; primary production; spatiotemporal analysis; upscaling; Arctic Ocean; Article; biogeochemistry; coastal waters; environmental erosion; net primary production; nutrient; primary production (biomass); recycling; river; Arctic Ocean
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/250792
作者单位	Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91191, France; Biogeochemistry and Earth System Modelling, Department of Geoscience, Environment and Society, Université Libre de Bruxelles, Bruxelles, Belgium; Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland; Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland; Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France; Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland; LMD/IPSL, Ecole Normale Supérieure/PSL University, CNRS, Ecole Polytechnique, Sorbonne Université, Paris, France
推荐引用方式 GB/T 7714	Terhaar J.,Lauerwald R.,Regnier P.,et al. Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion[J],2021,12(1).
APA	Terhaar J.,Lauerwald R.,Regnier P.,Gruber N.,&Bopp L..(2021).Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion.Nature Communications,12(1).
MLA	Terhaar J.,et al."Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion".Nature Communications 12.1(2021).