DOI: 10.1111/gcb.12543
论文题名: Net uptake of atmospheric CO2 by coastal submerged aquatic vegetation
作者: Tokoro T. ; Hosokawa S. ; Miyoshi E. ; Tada K. ; Watanabe K. ; Montani S. ; Kayanne H. ; Kuwae T.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 6 起始页码: 1873
结束页码: 1884
语种: 英语
英文关键词: Blue carbon
; Carbon cycles
; Climate change
; Net ecosystem production
; Seagrasses
Scopus关键词: air-sea interaction
; air-water interaction
; autotrophy
; carbon dioxide
; carbon sequestration
; carbon sink
; climate change
; coastal zone
; dissolved organic carbon
; eddy covariance
; in situ measurement
; nearshore environment
; net ecosystem production
; seagrass
; submerged vegetation
; Japan
; carbon dioxide
; Alismatales
; carbon cycle
; climate change
; ecosystem
; geography
; Japan
; metabolism
; season
; Alismatidae
; Carbon Cycle
; Carbon Dioxide
; Climate Change
; Ecosystem
; Geography
; Japan
; Seasons
英文摘要: 'Blue Carbon', which is carbon captured by marine living organisms, has recently been highlighted as a new option for climate change mitigation initiatives. In particular, coastal ecosystems have been recognized as significant carbon stocks because of their high burial rates and long-term sequestration of carbon. However, the direct contribution of Blue Carbon to the uptake of atmospheric CO2 through air-sea gas exchange remains unclear. We performed in situ measurements of carbon flows, including air-sea CO2 fluxes, dissolved inorganic carbon changes, net ecosystem production, and carbon burial rates in the boreal (Furen), temperate (Kurihama), and subtropical (Fukido) seagrass meadows of Japan from 2010 to 2013. In particular, the air-sea CO2 flux was measured using three methods: the bulk formula method, the floating chamber method, and the eddy covariance method. Our empirical results show that submerged autotrophic vegetation in shallow coastal waters can be functionally a sink for atmospheric CO2. This finding is contrary to the conventional perception that most near-shore ecosystems are sources of atmospheric CO2. The key factor determining whether or not coastal ecosystems directly decrease the concentration of atmospheric CO2 may be net ecosystem production. This study thus identifies a new ecosystem function of coastal vegetated systems; they are direct sinks of atmospheric CO2. © 2014 John Wiley & Sons Ltd 20 6 June 2014 10.1111/gcb.12543 Primary Research Article Primary Research Articles © 2014 The Authors. Global Change Biology Published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62156
Appears in Collections: 影响、适应和脆弱性
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作者单位: Coastal and Estuarine Environment Research Group, Port and Airport Research Institute, 3-1-1 Nagase, Yokosuka, Japan; Chuden Engineering Consultants, 2-3-30 Deshio, Minami-ku, Hiroshima, 734-8510, Japan; Graduate School of Environmental Science Faculty of Fisheries Science, Hokkaido University, N10-W5 Kita-ku, Sapporo, 060-0810, Japan; Department of Earth and Planetary Science, The University of Tokyo, 3-1-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
Recommended Citation:
Tokoro T.,Hosokawa S.,Miyoshi E.,et al. Net uptake of atmospheric CO2 by coastal submerged aquatic vegetation[J]. Global Change Biology,2014-01-01,20(6)