The influence of degradation of the swamp and alpine meadows on CH4 and CO2 fluxes on the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Wang, Junfeng1; Wang, Genxu2,3 ; Hu, Hongchang3; Wu, Qingbai1
|
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 60期号:3页码:537-548 |
| 关键词 | Carbon flux CH4 CO2 Degradation Swamp meadow Alpine meadow Qinghai-Tibetan Plateau |
| ISSN号 | 1866-6280 |
| 通讯作者 | Wang, JF |
| 英文摘要 | CH4 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 关键词[WOS] | GREENHOUSE GASES ; HEADWATERS AREA ; CARBON-DIOXIDE ; METHANE ; CHINA ; SOILS ; ECOSYSTEM ; CONSUMPTION ; GRASSLANDS ; EMISSIONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276637100008 |
| 公开日期 | 2013-07-05 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5603]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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