气候变化领域集成服务门户(CCPortal): Shifting limitation of primary production: experimental support for a new model in lake ecosystems

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DOI	10.1111/ele.13606
	Shifting limitation of primary production: experimental support for a new model in lake ecosystems
	Olson C.R.; Solomon C.T.; Jones S.E.
发表日期	2020
ISSN	1461023X
起始页码	1800
结束页码	1808
卷号	23 期号:12
英文摘要	The limits on primary production vary in complex ways across space and time. Strong tests of clear conceptual models have been instrumental in understanding these patterns in both terrestrial and aquatic ecosystems. Here we present the first experimental test of a new model describing how shifts from nutrient to light limitation control primary productivity in lake ecosystems as hydrological inputs of nutrients and organic matter vary. We found support for two key predictions of the model: that gross primary production (GPP) follows a hump-shaped relationship with increasing dissolved organic carbon (DOC) concentrations; and that the maximum GPP, and the critical DOC concentration at which the hump occurs, are determined by the stoichiometry and chromophoricity of the hydrological inputs. Our results advance fundamental understanding of the limits on aquatic primary production, and have important applications given ongoing anthropogenic alterations of the nutrient and organic matter inputs to surface waters. © 2020 The Authors. Ecology Letters published by John Wiley & Sons Ltd
关键词	Dissolved organic matter eutrophication lake light limitation model nutrients phosphorus primary production stoichiometry
英文关键词	carbon; ecosystem; lake; Carbon; Ecosystem; Lakes; Nutrients
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204270
作者单位	Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, United States; Cary Institute of Ecosystem Studies, Millbrook, NY 12545, United States
推荐引用方式 GB/T 7714	Olson C.R.,Solomon C.T.,Jones S.E.. Shifting limitation of primary production: experimental support for a new model in lake ecosystems[J],2020,23(12).
APA	Olson C.R.,Solomon C.T.,&Jones S.E..(2020).Shifting limitation of primary production: experimental support for a new model in lake ecosystems.Ecology Letters,23(12).
MLA	Olson C.R.,et al."Shifting limitation of primary production: experimental support for a new model in lake ecosystems".Ecology Letters 23.12(2020).