Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau | |
| Hirota, M; Tang, YH; Hu, QW; Kato, T; Hirata, S; Mo, WH; Cao, GM; Mariko, S | |
| 2005-09-01 | |
| 发表期刊 | ATMOSPHERIC ENVIRONMENT
 |
| 卷号 | 39期号:29页码:5255-5259 |
| 文章类型 | Article |
| 摘要 | To assess the impact of livestock grazing on the emission of greenhouse gases from grazed wetlands, we examined biomass growth of plants, CO2 and CH4 fluxes under grazing and non-grazing conditions on the Qinghai-Tibetan Plateau wetland. After the grazing treatment for a period of about 3 months, net ecosystem CO2 uptake and aboveground biomass were significantly smaller, but ecosystem CH4 emissions were remarkably greater, under grazing conditions than under non-grazing conditions. Examination of the gas-transport system showed that the increased CH4 emissions resulted from mainly the increase of conductance in the gas-transport system of the grazed plants. The sum of global warming potential, which was estimated from the measured CO2 and CH4 fluxes, was 5.6- to 11.3-fold higher under grazing conditions than under non-grazing conditions. The results suggest that livestock grazing may increase the global warming potential of the alpine wetlands. (c) 2005 Elsevier Ltd. All rights reserved.; To assess the impact of livestock grazing on the emission of greenhouse gases from grazed wetlands, we examined biomass growth of plants, CO2 and CH4 fluxes under grazing and non-grazing conditions on the Qinghai-Tibetan Plateau wetland. After the grazing treatment for a period of about 3 months, net ecosystem CO2 uptake and aboveground biomass were significantly smaller, but ecosystem CH4 emissions were remarkably greater, under grazing conditions than under non-grazing conditions. Examination of the gas-transport system showed that the increased CH4 emissions resulted from mainly the increase of conductance in the gas-transport system of the grazed plants. The sum of global warming potential, which was estimated from the measured CO2 and CH4 fluxes, was 5.6- to 11.3-fold higher under grazing conditions than under non-grazing conditions. The results suggest that livestock grazing may increase the global warming potential of the alpine wetlands. (c) 2005 Elsevier Ltd. All rights reserved. |
| 关键词 | Aquatic Plants Diffusive Conductivity Greenhouse Gases Global Warming Potential Livestock Grazing |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 学科领域 | 生物科学 |
| 关键词[WOS] | PHRAGMITES-AUSTRALIS ; SKALLINGEN ; VEGETATION ; EMISSIONS ; EXCHANGE ; DENMARK |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000232434900004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/1357 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan 2.CAS, NW Plateau Inst Biol, Xining 810001, Peoples R China 3.Frontier Res Ctr Global Change, Kanazawa Ku, Yokohama, Kanagawa 236001, Japan 4.Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan 5.Univ Tsukuba, Inst Biol Sci, Tsukuba, Ibaraki 3058572, Japan |
| 推荐引用方式 GB/T 7714 | Hirota, M,Tang, YH,Hu, QW,et al. The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau[J]. ATMOSPHERIC ENVIRONMENT,2005,39(29):5255-5259. |
| APA | Hirota, M.,Tang, YH.,Hu, QW.,Kato, T.,Hirata, S.,...&Mariko, S.(2005).The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau.ATMOSPHERIC ENVIRONMENT,39(29),5255-5259. |
| MLA | Hirota, M,et al."The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau".ATMOSPHERIC ENVIRONMENT 39.29(2005):5255-5259. |
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