气候变化领域集成服务门户(CCPortal): Dissolved organic phosphorus concentrations in the surface ocean controlled by both phosphate and iron stress

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DOI	10.1038/s41561-022-00988-1
	Dissolved organic phosphorus concentrations in the surface ocean controlled by both phosphate and iron stress
	Liang, Zhou; Letscher, Robert T.; Knapp, Angela N.
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	651
结束页码	+
卷号	15 期号:8 页码:14
英文摘要	Dissolved organic phosphorus (DOP) has a dual role in the surface ocean as both a product of primary production and as an organic nutrient that fuels primary production and nitrogen fixation, especially in oligotrophic gyres. Although poorly constrained, the geographic distribution and environmental controls of surface ocean DOP concentrations influence the distributions and rates of primary production and nitrogen fixation in the global ocean. Here we pair DOP concentration measurements with a metric of phosphate stress, satellite-based chlorophyll a concentrations and a satellite-based iron stress proxy to explore their relationship with upper 50 m DOP stocks. Our results suggest that phosphate and iron stress work together to control surface ocean DOP concentrations at basin scales. Specifically, upper 50 m DOP stocks decrease with increasing phosphate stress, while alleviated iron stress leads to either surface DOP accumulation or loss depending on phosphate availability. Our work extends the relationship between DOP concentrations and phosphate availability to the global ocean, suggests a linkage between marine phosphorus cycling and iron availability and establishes a predictive framework for DOP distributions and their use as an organic nutrient source that supports global ocean fertility. Production and consumption of dissolved organic phosphorus in the surface ocean is controlled by the interplay between phosphate and iron stress, according to global analyses of the distribution of marine nutrients.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000828452000003
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272564
作者单位	State University System of Florida; Florida State University; University System Of New Hampshire; University of New Hampshire
推荐引用方式 GB/T 7714	Liang, Zhou,Letscher, Robert T.,Knapp, Angela N.. Dissolved organic phosphorus concentrations in the surface ocean controlled by both phosphate and iron stress[J],2022,15(8):14.
APA	Liang, Zhou,Letscher, Robert T.,&Knapp, Angela N..(2022).Dissolved organic phosphorus concentrations in the surface ocean controlled by both phosphate and iron stress.NATURE GEOSCIENCE,15(8),14.
MLA	Liang, Zhou,et al."Dissolved organic phosphorus concentrations in the surface ocean controlled by both phosphate and iron stress".NATURE GEOSCIENCE 15.8(2022):14.