DOI: 10.1007/s10533-017-0340-y
Scopus记录号: 2-s2.0-85020664934
论文题名: Vulnerability of macronutrients to the concurrent effects of enhanced temperature and atmospheric pCO2 in representative shelf sea sediment habitats
作者: Godbold J.A. ; Hale R. ; Wood C.L. ; Solan M.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 135, 期: 2018-01-02 起始页码: 89
结束页码: 102
语种: 英语
英文关键词: Biodiversity
; Bioturbation
; Macronutrients
; Multiple stressors
; Ocean acidification
; Organic carbon
Scopus关键词: abundance
; biodiversity
; biogeochemistry
; bioturbation
; carbon dioxide
; climate change
; community structure
; environmental conditions
; environmental stress
; functional role
; high temperature
; microbial community
; ocean acidification
; organic carbon
; seawater
; shelf sediment
; species richness
; vulnerability
; Atlantic Ocean
; Celtic Sea
; Invertebrata
英文摘要: Fundamental changes in seawater carbonate chemistry and sea surface temperatures associated with the ocean uptake of anthropogenic CO2 are accelerating, but investigations of the susceptibility of biogeochemical processes to the simultaneous occurrence of multiple components of climate change are uncommon. Here, we quantify how concurrent changes in enhanced temperature and atmospheric pCO2, coupled with an associated shift in macrofaunal community structure and behavior (sediment particle reworking and bioirrigation), modify net carbon and nutrient concentrations (NH4-N, NOx-N, PO4-P) in representative shelf sea sediment habitats (mud, sandy-mud, muddy-sand and sand) of the Celtic Sea. We show that net concentrations of organic carbon, nitrogen and phosphate are, irrespective of sediment type, largely unaffected by a simultaneous increase in temperature and atmospheric pCO2. However, our analyses also reveal that a reduction in macrofaunal species richness and total abundance occurs under future environmental conditions, varies across a gradient of cohesive to non-cohesive sediments, and negatively moderates biogeochemical processes, in particular nitrification. Our findings indicate that future environmental conditions are unlikely to have strong direct effects on biogeochemical processes but, particularly in muddy sands, the abundance, activity, composition and functional role of invertebrate communities are likely to be altered in ways that will be sufficient to regulate the function of the microbial community and the availability of nutrients in shelf sea waters. © 2017, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83245
Appears in Collections: 气候减缓与适应 气候变化事实与影响
There are no files associated with this item.
作者单位: Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, European Way, Southampton, United Kingdom; Biological Sciences, University of Southampton, Highfield Campus, Southampton, United Kingdom
Recommended Citation:
Godbold J.A.,Hale R.,Wood C.L.,et al. Vulnerability of macronutrients to the concurrent effects of enhanced temperature and atmospheric pCO2 in representative shelf sea sediment habitats[J]. Biogeochemistry,2017-01-01,135(2018-01-02)