Methane emissions from the surface of the Three Gorges Reservoir
文献类型：期刊论文
| 作者 | Chen, Huai1,2; Yuan, Xingzhong3; Chen, Zhongli3; Wu, Yuyuan3; Liu, Xianshu4; Zhu, Dan5; Wu, Ning5; Zhu, Qiu'an1,2; Peng, Changhui1,2; Li, Weizhong1 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2011-11-09 |
| 卷号 | 116页码:D21306(1-5) |
| ISSN号 | 2169-897X |
| DOI | 10.1029/2011JD016244 |
| 产权排序 | 5 |
| 文献子类 | Article |
| 英文摘要 | After our previous study about methane (CH4) emissions from littoral marshes of the Three Gorges Reservoir (TGR), Chinese dams have raised a world-wide concern. Through measurements from the surface of the TGR, a CH4 emission rate was recorded as 0.26 +/- 0.38 mg CH4 m(-2) h(-1) (Mean +/- SD), relatively low compared with those from other hydropower reservoirs. We also recorded CH4 emission rate from the surface of downstream water, which was also relatively low (0.24 +/- 0.37 mg CH4 m(-2) h(-1)). Such result may indicate that TGR is not a great CH4 emitter (not "CH4 menace"). One possible reason for such a low emission rate is that measures to maintain water quality and protect environment and ecosystem decrease the input of organic materials (for methanogenesis), which in turn limits the CH4 production in the sediment of the TGR. We also found that CH4 emission from the flooding drawdown area (0.29 +/- 0.37 mg CH4 m(-2) h(-1)) was higher than other permanently flooded sites (0.23 +/- 0.38 mg CH4 m(-2) h(-1)). Because of annual vegetation re-growth, the drawdown zone is the especially important carbon source for methanogenesis in flooding season. Interestingly, we also observed that mean CH4 emission was significantly higher in winter than in spring and summer. This was partly due to seasonal dynamics of hydrology. In order to estimate the net CH4 emissions caused by the reservoir and reservoir operation, the best approach would be Life Cycle Analysis. |
| 学科主题 | Earth Sciences |
| URL标识 | 查看原文 |
| WOS关键词 | GREENHOUSE-GAS EMISSIONS ; HYDROELECTRIC RESERVOIRS ; CARBON-DIOXIDE ; DAM ; PERSPECTIVE ; DYNAMICS ; FLUXES ; WATER ; LAKE |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000297051000002 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://210.75.237.14/handle/351003/29848]  |
| 专题 | 生物多样性与生态系统服务领域_生态研究 成都生物研究所_生态研究 |
| 作者单位 | 1.NW Agr & Forest Univ, Coll Forestry, Lab Ecol Forecasting & Global Change, Yanglin 712100, Peoples R China; 2.Univ Quebec, Inst Environm Sci, Montreal, PQ H3C 3P8, Canada; 3.Chongqing Univ, Coll Resources & Environm, Chongqing 400030, Peoples R China; 4.Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin 150030, Peoples R China; 5.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Huai,Yuan, Xingzhong,Chen, Zhongli,et al. Methane emissions from the surface of the Three Gorges Reservoir[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2011,116:D21306(1-5). |
| APA | Chen, Huai.,Yuan, Xingzhong.,Chen, Zhongli.,Wu, Yuyuan.,Liu, Xianshu.,...&Li, Weizhong.(2011).Methane emissions from the surface of the Three Gorges Reservoir.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,116,D21306(1-5). |
| MLA | Chen, Huai,et al."Methane emissions from the surface of the Three Gorges Reservoir".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 116(2011):D21306(1-5). |
入库方式： OAI收割
来源：成都生物研究所
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