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Methane and carbon dioxide fluxes from a shallow hypereutrophic subtropical Lake in China
Xing, YP; Xie, P; Yang, H; Ni, LY; Wang, YS; Rong, KW; Xie, P, CAS, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2005-09-01
Source PublicationATMOSPHERIC ENVIRONMENT
ISSN1352-2310
Volume39Issue:30Pages:5532-5540
AbstractUp to now, there have been few studies in the annual fluxes of greenhouse gases in lakes of subtropical regions. The fluxes of methane (CH4) and carbon dioxide (CO2) across air-water interface were measured in a shallow, hypereutrophic, subtropical Lake Donghu (China) over a year cycle, using a static chamber technique. During the year, Lake Donghu emitted CH4 and CO2; the average flux of CH4 and CO2 was 23.3 +/- 18.6 and 332.3 +/- 160.1 mg m(-2) d(-1), respectively. The fluxes of CH4 and CO2 showed strong seasonal dynamics: CH4 emission rate was highest in summer, remaining low in other seasons, whereas CO2 was adsorbed from the atmosphere in spring and summer, but exhibited a large emission in winter. Annual carbon (C) budget across air-water interface in Lake Donghu was estimated to be 7.52 +/- 4.07 x 10(8) g. CH4 emission was correlated positively with net primary production (NPP) and temperature, whereas CO2 flux correlated negatively with NPP and temperature; however, there were no significant relationships between the fluxes of CH4 and CO2 and dissolved organic carbon, a significant difference from boreal lakes, indicating that phytoplankton rather than allochthonous matter regulated C dynamics across air-water interface of subtropical lake enriched nutrient content. (c) 2005 Elsevier Ltd. All rights reserved.; Up to now, there have been few studies in the annual fluxes of greenhouse gases in lakes of subtropical regions. The fluxes of methane (CH4) and carbon dioxide (CO2) across air-water interface were measured in a shallow, hypereutrophic, subtropical Lake Donghu (China) over a year cycle, using a static chamber technique. During the year, Lake Donghu emitted CH4 and CO2; the average flux of CH4 and CO2 was 23.3 +/- 18.6 and 332.3 +/- 160.1 mg m(-2) d(-1), respectively. The fluxes of CH4 and CO2 showed strong seasonal dynamics: CH4 emission rate was highest in summer, remaining low in other seasons, whereas CO2 was adsorbed from the atmosphere in spring and summer, but exhibited a large emission in winter. Annual carbon (C) budget across air-water interface in Lake Donghu was estimated to be 7.52 +/- 4.07 x 10(8) g. CH4 emission was correlated positively with net primary production (NPP) and temperature, whereas CO2 flux correlated negatively with NPP and temperature; however, there were no significant relationships between the fluxes of CH4 and CO2 and dissolved organic carbon, a significant difference from boreal lakes, indicating that phytoplankton rather than allochthonous matter regulated C dynamics across air-water interface of subtropical lake enriched nutrient content. (c) 2005 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordMethane Emission Carbon Dioxide Flux Npp Temperature Subtropical Lake
DepartmentCAS, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
Subject AreaEnvironmental Sciences ; Meteorology & Atmospheric Sciences
DOI10.1016/j.atmosenv.2005.06.010
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000232395400012
WOS KeywordNORTHERN WISCONSIN ; SEASONAL-VARIATION ; TEMPERATE LAKES ; BOREAL LAKES ; ICE MELT ; EMISSIONS ; WATER ; SWAMP ; CH4 ; SUPERSATURATION
Citation statistics
Cited Times:84[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9138
Collection期刊论文
Corresponding AuthorXie, P, CAS, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.CAS, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Xing, YP,Xie, P,Yang, H,et al. Methane and carbon dioxide fluxes from a shallow hypereutrophic subtropical Lake in China[J]. ATMOSPHERIC ENVIRONMENT,2005,39(30):5532-5540.
APA Xing, YP.,Xie, P.,Yang, H.,Ni, LY.,Wang, YS.,...&Xie, P, CAS, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2005).Methane and carbon dioxide fluxes from a shallow hypereutrophic subtropical Lake in China.ATMOSPHERIC ENVIRONMENT,39(30),5532-5540.
MLA Xing, YP,et al."Methane and carbon dioxide fluxes from a shallow hypereutrophic subtropical Lake in China".ATMOSPHERIC ENVIRONMENT 39.30(2005):5532-5540.
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