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| Responses of CH4 emissions to nitrogen addition and Spartina alterniflora invasion in Minjiang River estuary, southeast of China | |
Mou Xiaojie1; Liu Xingtu1,2; Tong Chuan2; Sun Zhigao3 ; Liu, XT (reprint author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China. lxtmxh@163.com
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| 发表期刊 | CHINESE GEOGRAPHICAL SCIENCE
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| ISSN | 1002-0063 |
| 2014-10-01 | |
| 卷号 | 24期号:5页码:562-574 |
| 关键词 | Nitrogen Addition Ch4 Emission Tidal Marsh Spartina Alterniflora Invasion Temporal Variability |
| DOI | 10.1007/s11769-014-0692-3 |
| 产权排序 | [Mou Xiaojie; Liu Xingtu] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China; [Liu Xingtu; Tong Chuan] Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Ctr Wetlands Subtrop Reg, Minist Educ, Fuzhou 350007, Peoples R China; [Sun Zhigao] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Beijing 264003, Yantai, Peoples R China |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | The nitrogen (N) input and Spartina alterniflora invasion in the tidal marsh of the southeast of China are increasingly serious. To evaluate CH4 emissions in the tidal marsh as affected by the N inputs and S. alterniflora invasion, we measured CH4 emissions from plots with vegetated S. alterniflora and native Cyperus malaccensis, and fertilized with exogenous N at the rate of 0 (N0), 21 (N1) and 42 (N2) g N/(m(2)center dot yr), respectively, in the Shanyutan marsh in the Minjiang River estuary, the southeast of China. The average CH4 fluxes during the experiment in the C. malaccensis and S. alterniflora plots without N addition were 3.67 mg CH4/(m(2)center dot h) and 7.79 mg CH4/(m(2)center dot h), respectively, suggesting that the invasion of S. alterniflora into the Minjiang River estuary stimulated CH4 emission. Exogenous N had positive effects on CH4 fluxes both in native and in invaded tidal marsh. The mean CH4 fluxes of N1 and N2 treatments increased by 31.05% and 123.50% in the C. malaccensis marsh, and 63.88% and 7.55% in the S. alterniflora marsh, respectively, compared to that of N0 treatment. The CH4 fluxes in the two marshes were positively correlated with temperature and pH, and negatively correlated with electrical conductivity and redox potential (Eh) at different N addition treatments. While the relationships between CH4 fluxes and environmental variables (especially soil temperature, pH and Eh at different depths) tended to decrease with N additions. Significant temporal variability in CH4 fluxes were observed as the N was gradually added to the native and invaded marshes. In order to better assess the global climatic role of tidal marshes as affected by N addition, much more attention should be paid to the short-term temporal variability in CH4 emission.; The nitrogen (N) input and Spartina alterniflora invasion in the tidal marsh of the southeast of China are increasingly serious. To evaluate CH4 emissions in the tidal marsh as affected by the N inputs and S. alterniflora invasion, we measured CH4 emissions from plots with vegetated S. alterniflora and native Cyperus malaccensis, and fertilized with exogenous N at the rate of 0 (N0), 21 (N1) and 42 (N2) g N/(m(2)center dot yr), respectively, in the Shanyutan marsh in the Minjiang River estuary, the southeast of China. The average CH4 fluxes during the experiment in the C. malaccensis and S. alterniflora plots without N addition were 3.67 mg CH4/(m(2)center dot h) and 7.79 mg CH4/(m(2)center dot h), respectively, suggesting that the invasion of S. alterniflora into the Minjiang River estuary stimulated CH4 emission. Exogenous N had positive effects on CH4 fluxes both in native and in invaded tidal marsh. The mean CH4 fluxes of N1 and N2 treatments increased by 31.05% and 123.50% in the C. malaccensis marsh, and 63.88% and 7.55% in the S. alterniflora marsh, respectively, compared to that of N0 treatment. The CH4 fluxes in the two marshes were positively correlated with temperature and pH, and negatively correlated with electrical conductivity and redox potential (Eh) at different N addition treatments. While the relationships between CH4 fluxes and environmental variables (especially soil temperature, pH and Eh at different depths) tended to decrease with N additions. Significant temporal variability in CH4 fluxes were observed as the N was gradually added to the native and invaded marshes. In order to better assess the global climatic role of tidal marshes as affected by N addition, much more attention should be paid to the short-term temporal variability in CH4 emission. |
| 文章类型 | Article |
| 资助机构 | Environmental Sciences & Ecology |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | FRESH-WATER MARSHES ; COASTAL SALT-MARSH ; METHANE EMISSIONS ; CARBON MINERALIZATION ; EXOGENOUS-N ; N2O ; CO2 ; DEPOSITION ; PEATLANDS ; WETLANDS |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000342218300006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8704 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 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 |
| 通讯作者 | Liu, XT (reprint author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China. lxtmxh@163.com |
| 作者单位 | 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China 2.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Ctr Wetlands Subtrop Reg, Minist Educ, Fuzhou 350007, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Beijing 264003, Yantai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mou Xiaojie,Liu Xingtu,Tong Chuan,et al. Responses of CH4 emissions to nitrogen addition and Spartina alterniflora invasion in Minjiang River estuary, southeast of China[J]. CHINESE GEOGRAPHICAL SCIENCE,2014,24(5):562-574. |
| APA | Mou Xiaojie,Liu Xingtu,Tong Chuan,Sun Zhigao,&Liu, XT .(2014).Responses of CH4 emissions to nitrogen addition and Spartina alterniflora invasion in Minjiang River estuary, southeast of China.CHINESE GEOGRAPHICAL SCIENCE,24(5),562-574. |
| MLA | Mou Xiaojie,et al."Responses of CH4 emissions to nitrogen addition and Spartina alterniflora invasion in Minjiang River estuary, southeast of China".CHINESE GEOGRAPHICAL SCIENCE 24.5(2014):562-574. |
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