Seasonal and diurnal variations in methane emissions from Wuliangsu Lake in arid regions of China
文献类型：期刊论文
| 作者 | Duan, XN; Wang, XK; Mu, YJ; Ouyang, ZY |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2005 |
| 卷号 | 39期号:25页码:4479-4487 |
| 关键词 | methane emission flux emergent plants submerged macrophyte |
| 英文摘要 | CH4 emissions have been widely studied in various wetlands, such as boreal peatlands, rice paddies, and tropical swamps. However, little investigation has been carried out for CH4 emissions from lakes or wetlands in and regions where these freshwaters play a vital role in providing ecosystem services for local people. To quantify the spatial and temporal variations of CH4 flux and understand its key controlling factors in shallow lakes in and regions of Western China, CH4 fluxes from Wuliangsu Lake were measured at different vegetation zones and water depths with a static chamber technique during a growing season from April to October in 2003. Results showed that the average emission flux of CH4 from submerged plant (Potamogeton pectinatus) growing zones was 2.16 mg CH4 m(-2) h(-1), which was 85.8% lower than that from emergent macrophyte (Phragmites australis) growing zones. CH4 emissions increased with increasing water depth in Phragmites Community. Significant seasonal and diurnal variations of CH4 emission were observed for P. australis during the plant growth stage, for P. pectinatus growing zones, however, the variations were minor. In addition to vegetation cover and water depth, bottom silt temperature and light intensity were also important factors influencing seasonal and diurnal variations of CH4 flux from Phargmites growing zone. (c) 2005 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000231481900006 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23114]  |
| 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 | Duan, XN,Wang, XK,Mu, YJ,et al. Seasonal and diurnal variations in methane emissions from Wuliangsu Lake in arid regions of China[J]. ATMOSPHERIC ENVIRONMENT,2005,39(25):4479-4487. |
| APA | Duan, XN,Wang, XK,Mu, YJ,&Ouyang, ZY.(2005).Seasonal and diurnal variations in methane emissions from Wuliangsu Lake in arid regions of China.ATMOSPHERIC ENVIRONMENT,39(25),4479-4487. |
| MLA | Duan, XN,et al."Seasonal and diurnal variations in methane emissions from Wuliangsu Lake in arid regions of China".ATMOSPHERIC ENVIRONMENT 39.25(2005):4479-4487. |
入库方式： OAI收割
来源：生态环境研究中心
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