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The influence of degradation of the swamp and alpine meadows on CH4 and CO2 fluxes on the Qinghai-Tibetan Plateau
Wang, Junfeng1; Wang, Genxu2,3; Hu, Hongchang3; Wu, Qingbai1
Corresponding AuthorWang, JF
2010
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
EISSN1866-6299
Volume60Issue:3Pages:537-548
SubtypeArticle
AbstractCH4 and CO2 fluxes from a high-cold swamp meadow and an alpine meadow on the Qinghai- Tibetan Plateau, subject to different degrees of degradation, were measured over a 12-month period. Air temperature, soil temperature and moisture, and the depths of the water table and thawing-freezing layer were determined. For swamp meadows, the greater the degradation, the lesser the carbon efflux. CH4 emissions at the nondegraded swamp meadow site were 1.09-3.5 and 2.5-11.27 times greater, and CO2 emissions 1.08-1.69 and 1.41-4.43 times greater, respectively, than those from moderately and severely degraded sites. For alpine meadows, the greater the degradation, the greater the CH4 consumption and CO2 emissions. CH4 consumption at the severely degraded alpine meadow site was 6.6-21 and 1.1-5.25 times greater, and CO2 emissions 1.05-78.5 and 1.04-6.28 times greater, respectively, than those from the nondegraded and moderately degraded sites. The CH4 and CO2 fluxes at both sites were significantly correlated (R-2 > 0.59, P < 0.05) with air temperature, soil temperature, and topsoil (0-5 cm depth) moisture, indicating these to be the main environmental factors affecting such fluxes.
KeywordCarbon Flux Ch4 Co2 Degradation Swamp Meadow Alpine Meadow Qinghai-tibetan Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s12665-009-0193-3
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
WOS KeywordGREENHOUSE GASES ; HEADWATERS AREA ; CARBON-DIOXIDE ; METHANE ; CHINA ; SOILS ; ECOSYSTEM ; CONSUMPTION ; GRASSLANDS ; EMISSIONS
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000276637100008
Funding OrganizationNational Basic Research Program of China (973 Program)(2007CB411504) ; Chinese Academy of Sciences(2004) ; Outstanding Youth Foundation Project ; National Natural Science Foundation of China(40625004) ; National Nature Science Foundation of China(90511003)
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5603
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Lanzhou Univ, Coll Resources & Environm Sci, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Wang, Junfeng,Wang, Genxu,Hu, Hongchang,et al. The influence of degradation of the swamp and alpine meadows on CH4 and CO2 fluxes on the Qinghai-Tibetan Plateau[J]. ENVIRONMENTAL EARTH SCIENCES,2010,60(3):537-548.
APA Wang, Junfeng,Wang, Genxu,Hu, Hongchang,&Wu, Qingbai.(2010).The influence of degradation of the swamp and alpine meadows on CH4 and CO2 fluxes on the Qinghai-Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,60(3),537-548.
MLA Wang, Junfeng,et al."The influence of degradation of the swamp and alpine meadows on CH4 and CO2 fluxes on the Qinghai-Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 60.3(2010):537-548.
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