气候变化领域集成服务门户(CCPortal): Direct evidence for phosphorus limitation on Amazon forest productivity

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DOI	10.1038/s41586-022-05085-2
	Direct evidence for phosphorus limitation on Amazon forest productivity
	Viana Cunha, Hellen Fernanda; Andersen, Kelly M.; Lugli, Laynara Figueiredo; Santana, Flavia Delgado; Aleixo, Izabela Fonseca; Moraes, Anna Martins; Garcia, Sabrina; Di Ponzio, Raffaello; Mendoza, Erick Oblitas; Brum, Barbara; Rosa, Jessica Schmeisk; Cordeiro, Amanda L.; Tanaka Portela, Bruno Takeshi; Ribeiro, Gyovanni; Coelho, Sara Deambrozi; de Souza, Sheila Trierveiler; Silva, Lara Siebert; Antonieto, Felipe; Pires, Maria; Salomao, Ana Claudia; Miron, Ana Caroline; de Assis, Rafael L.; Domingues, Tomas F.; Aragao, Luiz E. O. C.; Meir, Patrick; Camargo, Jose Luis; Manzi, Antonio Ocimar; Nagy, Laszlo; Mercado, Lina M.; Hartley, Iain P.; Quesada, Carlos Alberto
发表日期	2022
ISSN	0028-0836
EISSN	1476-4687
起始页码	558
结束页码	+
卷号	608 期号:7923
英文摘要	The productivity of rainforests growing on highly weathered tropical soils is expected to be limited by phosphorus availability(1). Yet, controlled fertilization experiments have been unable to demonstrate a dominant role for phosphorus in controlling tropical forest net primary productivity. Recent syntheses have demonstrated that responses to nitrogen addition are as large as to phosphorus(2), and adaptations to low phosphorus availability appear to enable net primary productivity to be maintained across major soil phosphorus gradients'. Thus, the extent to which phosphorus availability limits tropical forest productivity is highly uncertain. The majority of the Amazonia, however, is characterized by soils that are more depleted in phosphorus than those in which most tropical fertilization experiments have taken place(2). Thus, we established a phosphorus, nitrogen and base cation addition experiment in an old growth Amazon rainforest, with a low soil phosphorus content that is representative of approximately 60% of the Amazon basin. Here we show that net primary productivity increased exclusively with phosphorus addition. After 2 years, strong responses were observed in fine root (+29%) and canopy productivity (+19%), but not stem growth. The direct evidence of phosphorus limitation of net primary productivity suggests that phosphorus availability may restrict Amazon forest responses to CO2 fertilization(4), with major implications for future carbon sequestration and forest resilience to climate change.
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000838682300004
来源期刊	NATURE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280961
作者单位	Institute Nacional de Pesquisas da Amazonia; Nanyang Technological University; University of Exeter; Technical University of Munich; Institute Nacional de Pesquisas da Amazonia; Colorado State University; University of Hamburg; University of Oslo; Universidade de Sao Paulo; Instituto Nacional de Pesquisas Espaciais (INPE); University of Edinburgh; Australian National University; Universidade Estadual de Campinas; UK Centre for Ecology & Hydrology (UKCEH)
推荐引用方式 GB/T 7714	Viana Cunha, Hellen Fernanda,Andersen, Kelly M.,Lugli, Laynara Figueiredo,et al. Direct evidence for phosphorus limitation on Amazon forest productivity[J],2022,608(7923).
APA	Viana Cunha, Hellen Fernanda.,Andersen, Kelly M..,Lugli, Laynara Figueiredo.,Santana, Flavia Delgado.,Aleixo, Izabela Fonseca.,...&Quesada, Carlos Alberto.(2022).Direct evidence for phosphorus limitation on Amazon forest productivity.NATURE,608(7923).
MLA	Viana Cunha, Hellen Fernanda,et al."Direct evidence for phosphorus limitation on Amazon forest productivity".NATURE 608.7923(2022).