DOI: 10.1111/gcb.14171
Scopus记录号: 2-s2.0-85046355487
论文题名: Counterintuitive effects of global warming-induced wind patterns on primary production in the Northern Humboldt Current System
作者: Mogollón R. ; R. Calil P.H.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 7 起始页码: 3187
结束页码: 3198
语种: 英语
英文关键词: Bakun's hypothesis
; build up of atmospheric CO2
; eddy-driven effects
; global warming-induced wind intensification
; latitudinal variability of primary production
; Northern Humboldt Current System
; response of biological production
Scopus关键词: ecosystem response
; eddy
; global warming
; hydrological response
; nutrient use efficiency
; primary production
; temperature gradient
; wind field
; Humboldt Current
; Pacific Coast [South America]
; Pacific Ocean
; Peru
英文摘要: It has been hypothesized that global warming will strengthen upwelling-favorable winds in the Northern Humboldt Current System (NHCS) as a consequence of the increase of the land–sea thermal gradient along the Peruvian coast. The effect of strengthened winds in this region is assessed with the use of a coupled physical–biogeochemical model forced with projected and climatological winds. Strengthened winds induce an increase in primary production of 2% per latitudinal degree from 9.5°S to 5°S. In some important coastal upwelling sites primary production is reduced. This is due to a complex balance between nutrient availability, nutrient use efficiency, as well as eddy- and wind-driven factors. Mesoscale activity induces a net offshore transport of inorganic nutrients, thus reducing primary production in the coastal upwelling region. Wind mixing, in general disadvantageous for primary producers, leads to shorter residence times in the southern and central coastal zones. Overall, instead of a proportional enhancement in primary production due to increased winds, the NHCS becomes only 5% more productive (+5 mol C m−2 year−1), 10% less limited by nutrients and 15% less efficient due to eddy-driven effects. It is found that regions with a initial strong nutrient limitation are more efficient in terms of nutrient assimilation which makes them more resilient in face of the acceleration of the upwelling circulation. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110350
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Laboratório de Dinâmica e Modelagem Oceânica - DinaMO, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil
Recommended Citation:
Mogollón R.,R. Calil P.H.. Counterintuitive effects of global warming-induced wind patterns on primary production in the Northern Humboldt Current System[J]. Global Change Biology,2018-01-01,24(7)