Preliminary report on methane emissions from the Three Gorges Reservoir in the summer drainage period
文献类型：期刊论文
| 作者 | Lu, Fei ; Yang, Le ; Wang, Xiaoke ; Duan, Xiaonan ; Mu, Yujing ; Song, Wenzhi ; Zheng, Feixiang ; Niu, Junfeng ; Tong, Lei ; Zheng, Hua ; Zhou, Yongjuan ; Qiu, Jiangxiao ; Ouyang, Zhiyun |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2011 |
| 卷号 | 23期号:12页码:2029—2033 |
| 关键词 | methane the Three Gorges Reservoir drawdown area summer drainage uncertainty flood |
| 中文摘要 | Recently reported summertime methane (CH4) emissions (6.7 +/- 13.3 mg CH4/(m(2).hr)) from newly created marshes in the drawdown area of the Three Gorges Reservoir (TGR), China have triggered broad concern in academic circles and among the public. The CH4 emissions from TGR water surfaces and drawdown areas were monitored from 3rd June to 16th October 2010 with floating and static chambers and gas chromatography. The average CH4 emission flux from permanently flooded areas in Zigui, Wushan and Yunyang Counties was (0.33 +/- 0.09) mg CH4/(m(2).hr). In half of these hottest months of the year, the wilderness, cropland and deforested drawdown sites were aerobic and located above water level, and the CH4 emissions were very small, ranging from a sink at 0.12 mg CH4/(m(2).hr) to a source at 0.08 mg CH4/(m(2).hr) except for one mud-covered site after flood. Mean CH4 emission in flooded drawdown sites was 0.34 mg CH4/(m(2).hr). The emissions from the rice paddy sites in the drawdown area were averaged at (4.86 +/- 2.31) mg CH4/(m(2).hr). Excepting the rice-paddy sites, these results show much lower emission levels than previously reported. Our results indicated considerable spatial and temporal variation in CH4 emissions from the TGR. Human activities and occasional events, such as flood, may also affect emission levels. Long-term CH4 measurements and modeling in a large region are necessary to accurately estimate greenhouse gas emissions from the TGR. |
| WOS记录号 | WOS:000298531000014 |
| 公开日期 | 2012-10-18 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7138]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Lu, Fei,Yang, Le,Wang, Xiaoke,et al. Preliminary report on methane emissions from the Three Gorges Reservoir in the summer drainage period[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2011,23(12):2029—2033. |
| APA | Lu, Fei.,Yang, Le.,Wang, Xiaoke.,Duan, Xiaonan.,Mu, Yujing.,...&Ouyang, Zhiyun.(2011).Preliminary report on methane emissions from the Three Gorges Reservoir in the summer drainage period.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,23(12),2029—2033. |
| MLA | Lu, Fei,et al."Preliminary report on methane emissions from the Three Gorges Reservoir in the summer drainage period".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 23.12(2011):2029—2033. |
入库方式： OAI收割
来源：生态环境研究中心
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