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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
2010-05-01
发表期刊SCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
卷号53期号:5页码:700-709
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
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.
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
关键词Freeze-thaw Region Freshwater Marsh Methane Nitrous Oxide Controlling Factors
作者部门滨海湿地实验室 
学科领域Geosciences, Multidisciplinary
项目资助者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]
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收录类别SCI
关键词[WOS]NITROUS-OXIDE EMISSIONS ; METHANE EMISSIONS ; NATURAL WETLANDS ; LOW-TEMPERATURES ; TRACE GASES ; RICE FIELDS ; SOIL REDOX ; THAW ; CO2 ; TABLE
文章类型Article
语种英语
WOS研究方向Geology
WOS记录号WOS:000277645400017
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/3702
专题滨海湿地实验室
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
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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.
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