DOI: 10.1016/j.atmosenv.2015.02.006
Scopus记录号: 2-s2.0-84922660779
论文题名: Factors influencing spatio-temporal variation of methane and nitrous oxide emission from a tropical mangrove of eastern coast of India
作者: Chauhan R ; , Datta A ; , Ramanathan A ; L ; , Adhya T ; K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 107 起始页码: 95
结束页码: 106
语种: 英语
英文关键词: Mangrove
; Methane emission
; Nitrous oxide emission
; Seasonal
; Tidal
Scopus关键词: Atmospheric thermodynamics
; Forestry
; Methane
; Nitrogen oxides
; Mangrove
; Methane emissions
; Nitrous oxide emissions
; Seasonal
; Tidal
; Sediments
; ammonia
; methane
; methylamine
; nitrous oxide
; atmospheric pollution
; bacterium
; biogenic emission
; coastal sediment
; concentration (composition)
; human activity
; mangrove
; methane
; nitrous oxide
; seasonal variation
; spatiotemporal analysis
; tropical environment
; air sampling
; Article
; denitrifying bacterium
; humidity
; India
; intertidal zone
; mangrove
; methanogen
; microbial community
; national park
; nitrous oxide emission
; nonhuman
; oxidation reduction potential
; priority journal
; salinity
; seashore
; seasonal rain forest
; seasonal variation
; sediment
; spatiotemporal analysis
; summer
; temperature
; total organic carbon
; tropic climate
; tropical rain forest
; wildlife
; winter
; Bhitarkanika National Park
; India
; Odisha
; Bacteria (microorganisms)
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: We have studied the seasonal and tidal variation of methane (CH4) and nitrous oxide (N2O) emission from the intertidal sediment of Bhitarkanika mangrove in the east coast of India. Seasonal variability study was conducted at five sites (three replicate of each site) inside the core area of the national park during three different seasons (summer, monsoon and winter) whereas tidal variation was studied at three different sites outside the core area during monsoon and winter season. Both CH4 and N2O emission from the intertidal sediment were significantly higher under the low tide condition during the winter season. During the study period CH4 emission from five different sites was ranged between 0.08 and 2.30mgm-2h-1 and the N2O emission was ranged between 9.0 and 187.58μgm-2h-1. Average seasonal N2O emission (μgm-2h-1) from five different sites followed the order: winter (115.60±21.90)>summer (45.29±7.78)>monsoon (16.98±2.54). CH4 and N2O emission was also recorded significantly higher during the winter season over the tidal cycle of three sampling locations. The CH4 emission was negatively correlated with sediment salinity (r=-0.91, P<0.05) and SO4-2 (r=-0.89, P<0.05) concentration whereas; the N2O emission was positively correlated with sediment salinity (r=0.48) and NO3--N (r=0.88, P<0.05) concentration during the monsoon season. Positive correlation of N2O emission with the sediment NO3--N indicates possible influence of upstream anthropogenic activities on N2O emission from the mangrove sediment. In general, methylamine utilizing methanogen and denitrifying bacterial population was significantly higher during winter season in the mangrove sediment. The study concludes that the CH4 and N2O emission from the sediment at different sites during different seasons are influenced by allochthonous carbon and nitrogenous materials. © 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81874
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India; Indira Gandhi National Open University, New Delhi, India; Center for Environmental Studies, Earth Sciences and Climate Change Division, The Energy and Resources Institute, New Delhi, India; Soil Science and Microbiology Laboratory, Crop Production Division, Central Rice Research Institute, Cuttack, India; School of Biotechnology, KIIT University, Bhubaneswar, India
Recommended Citation:
Chauhan R,, Datta A,, Ramanathan A,et al. Factors influencing spatio-temporal variation of methane and nitrous oxide emission from a tropical mangrove of eastern coast of India[J]. Atmospheric Environment,2015-01-01,107