| The fluxes and controlling factors of N2O and CH4 emissions from freshwater marsh in Northeast China | |
Yu, JunBao1,2 ; Liu, JingShuang2; Sun, ZhiGao1; Sun, WeiDong3; Wang, JinDa2; Wang, GuoPing2; Chen, XiaoBing1
| |
| 发表期刊 | SCIENCE CHINA-EARTH SCIENCES
 |
| ISSN | 1674-7313 |
| 2010-05-01 | |
| 卷号 | 53期号:5页码:700-709 |
| 关键词 | Freeze-thaw Region Freshwater Marsh Methane Nitrous Oxide Controlling Factors |
| 产权排序 | [Yu, JunBao; Sun, ZhiGao; Chen, XiaoBing] Chinese Acad Sci, Key Lab Coastal Envionment Proc, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China; [Yu, JunBao; Liu, JingShuang; Wang, JinDa; Wang, GuoPing] Chinese Acad Sci, Key Lab Wetland Ecol & Environm, NE Inst Geog & Agr Ecol, Changchun 130012, Peoples R China; [Sun, WeiDong] Chinese Acad Sci, Key Lab Isotope Geochronol & Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 通讯作者 | Yu, JB, Chinese Acad Sci, Key Lab Coastal Envionment Proc, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | Nitrous oxide (N2O) and methane (CH4) emissions were measured using a static chamber method in two adjacent plots of freshwater marsh predominated by Calamagrostis angustifolia, one is seasonal waterlogged (SW) and the other without surface water accumulation (NW), in Sanjiang Plain wetland (47 degrees 35'N, 133 degrees 31'E), northeast China, during 2002-2004. The diurnal and seasonal flux variations of both gases were significantly correlated with 5-cm-soil temperature. The NW marsh is a source of N2O and sink of CH4, while the SW marsh is sink of N2O and source of CH4. Remarkably, we observed a N2O emission peak under Eh of -300 to -100 mV, and CH4 emission peak under Eh of +300 to +400 mV, which indicate additional sources of N2O and CH4 for the freeze-thaw induced emission peaks of N2O and CH4 observed between late July and early August. Further study shows that the additional N2O and CH4 were emitted under the frozen soil after thawing.; Nitrous oxide (N2O) and methane (CH4) emissions were measured using a static chamber method in two adjacent plots of freshwater marsh predominated by Calamagrostis angustifolia, one is seasonal waterlogged (SW) and the other without surface water accumulation (NW), in Sanjiang Plain wetland (47 degrees 35'N, 133 degrees 31'E), northeast China, during 2002-2004. The diurnal and seasonal flux variations of both gases were significantly correlated with 5-cm-soil temperature. The NW marsh is a source of N2O and sink of CH4, while the SW marsh is sink of N2O and source of CH4. Remarkably, we observed a N2O emission peak under Eh of -300 to -100 mV, and CH4 emission peak under Eh of +300 to +400 mV, which indicate additional sources of N2O and CH4 for the freeze-thaw induced emission peaks of N2O and CH4 observed between late July and early August. Further study shows that the additional N2O and CH4 were emitted under the frozen soil after thawing. |
| 文章类型 | Article |
| 资助机构 | Chinese Academy of Sciences [KZCX2-YW-223, KZCX2-YW-309]; National Natural Science Foundation of China [40873062]; Science and Technology Development Program Project of Shandong Province [2008GG20005006, 2008GG3NS07005] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | NITROUS-OXIDE EMISSIONS ; METHANE EMISSIONS ; NATURAL WETLANDS ; LOW-TEMPERATURES ; TRACE GASES ; RICE FIELDS ; SOIL REDOX ; THAW ; CO2 ; TABLE |
| 研究领域[WOS] | Geology |
| WOS记录号 | WOS:000277645400017 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3701 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Coastal Envionment Proc, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Key Lab Wetland Ecol & Environm, NE Inst Geog & Agr Ecol, Changchun 130012, Peoples R China 3.Chinese Acad Sci, Key Lab Isotope Geochronol & Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, JunBao,Liu, JingShuang,Sun, ZhiGao,et al. The fluxes and controlling factors of N2O and CH4 emissions from freshwater marsh in Northeast China[J]. SCIENCE CHINA-EARTH SCIENCES,2010,53(5):700-709. |
| APA | Yu, JunBao.,Liu, JingShuang.,Sun, ZhiGao.,Sun, WeiDong.,Wang, JinDa.,...&Chen, XiaoBing.(2010).The fluxes and controlling factors of N2O and CH4 emissions from freshwater marsh in Northeast China.SCIENCE CHINA-EARTH SCIENCES,53(5),700-709. |
| MLA | Yu, JunBao,et al."The fluxes and controlling factors of N2O and CH4 emissions from freshwater marsh in Northeast China".SCIENCE CHINA-EARTH SCIENCES 53.5(2010):700-709. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| The fluxes and contr（1011KB） | 开放获取 | -- | 浏览 下载 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论