DOI: 10.1016/j.atmosenv.2015.04.035
Scopus记录号: 2-s2.0-84927716378
论文题名: Invasion chronosequence of Spartina alterniflora on methane emission and organic carbon sequestration in a coastal salt marsh
作者: Xiang J ; , Liu D ; , Ding W ; , Yuan J ; , Lin Y
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 112 起始页码: 72
结束页码: 80
语种: 英语
英文关键词: Carbon sequestration
; CH4 emission
; Coastal salt marsh
; SOC
; Spartina alterniflora invasion
Scopus关键词: Carbon
; Forestry
; Global warming
; Hydraulic structures
; Methane
; Organic carbon
; Accumulation rates
; Carbon sequestration
; Global warming potential
; Salt marshes
; SOC
; SOC concentrations
; Soil organic carbon storages
; Spartina alterniflora
; Wetlands
; methane
; organic carbon
; soil organic matter
; water
; carbon sequestration
; chronosequence
; dike
; grass
; growing season
; methane
; saltmarsh
; soil organic matter
; spatiotemporal analysis
; Article
; carbon sequestration
; China
; chronosequence
; coastal waters
; controlled study
; grass
; greenhouse effect
; mesocosm
; methanogenic archaeon
; oxidation reduction potential
; plant growth
; priority journal
; salt marsh
; season
; Spartina alterniflora
; temperature
; China
; Jiangsu
; Sheyang
; Spartina alterniflora
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Spartina alterniflora was intentionally introduced to China in 1979 for the purpose of sediment stabilization and dike protection, and has continuously replaced native plants or invaded bare mudflats in the coastal marsh. To evaluate the spatial variation of CH4 emission and soil organic carbon (SOC) storage along the invasion chronosequence, we selected four sites including bare mudflat (Control, as first year invasion), and marshes invaded by S.alterniflora in 2002 (SA-1), 1999 (SA-2) and 1995 (SA-3), respectively, in Sheyang county, Jiangsu, China and set up the marsh mesocosm system for flux measurement. The mean accumulation rate of SOC in the 0-30cm layer exponentially increased with the invasion time, ranging from 1.08 (over the first 9 years) to 2.35MgCha-1yr-1 (over the period of 12-16 years). The cumulative CH4 emission during the growth season was 20.5, 75.4, 81.0 and 92.2kg CH4ha-1 in Control, SA-1, SA-2 and SA-3, respectively, and there was a binomial relationship between CH4 emission and invasion time. Cumulative CH4 emission was logarithmically increased with SOC concentration; however the ratio of CH4 emission to SOC concentration was inversely correlated with the invasion time in the S.alterniflora marsh, suggesting that the less increased SOC in the S.alterniflora marsh was converted into CH4. The net global warming potential (GWP) was estimated at 733kg CO2-eq ha-1yr-1 in the tidal mudflat and reduced to-1273 (SA-1) to-2233kg CO2-eq ha-1yr-1 (SA-3) in the S.alterniflora marsh. Our results indicated that S.alterniflora invasion effectively sequestrated atmospheric CO2 and mitigated GWP in the coastal marsh of China. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81703
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China; University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Xiang J,, Liu D,, Ding W,et al. Invasion chronosequence of Spartina alterniflora on methane emission and organic carbon sequestration in a coastal salt marsh[J]. Atmospheric Environment,2015-01-01,112