热门
Seasonal variation in CH4 emission and its C-13-isotopic signature from Spartina alterniflora and Scirpus mariqueter soils in an estuarine wetland
文献类型：期刊论文
| 作者 | Chen, Jiakuai2; Cheng, Xiaoli1,2,3; Luo, Yiqi2,3; Xu, Qing4; Lin, Guanghui5,6; Zhang, Quanfa1; Li, Bo2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2010-02-01 |
| 卷号 | 327期号:1-2页码:85-94 |
| 关键词 | CH4 emission Stable carbon isotope Soil properties Plant invasion Coastal sediments |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-009-0033-y |
| 英文摘要 | Although invasions by non-native species represent a major threat to biodiversity and ecosystem functioning, little attention has been paid to the potential impacts of these invasions on methane (CH4) emission and its C-13-CH4-isotope signature in salt marshes. An invasive perennial C-4 grass Spartina alterniflora has spread rapidly along the east coast of China since its introduction from North America in 1979. Since its intentional introduction to the Jiuduansha Island in the Yangtze River estuary in 1997, S. alterniflora monocultures have become the dominant component of the Jiuduansha's vegetation, where monocultures of the native plant Scirpus mariqueter (a C-3 grass) used to dominate the vegetation for more than 30 years. We investigated seasonal variation in soil CH4 emission and its C-13-CH4-isotope signature from S. alterniflora and S. mariqueter marshes. The results obtained here show that S. alterniflora invasion increased soil CH4 emissions compared to native S. mariqueter, possibly resulting from great belowground biomass of S. alterniflora, which might have affected soil microenvironments and /or CH4 production pathways. CH4 emissions from soils in both marshes followed similar seasonal patterns in CH4 emissions that increased significantly from April to August and then decreased from August to October. CH4 emissions were positively correlated with soil temperature, but negatively correlated with soil moisture for both S. alterniflora and S. mariqueter soils (p < 0.05). The delta C-13 values of CH4 from S. alterniflora, and S. mariqueter soils ranged from -39.0aEuro degrees to -45.0aEuro degrees, and -37.3aEuro degrees to -45.7aEuro degrees, respectively, with the lowest delta C-13 values occurring in August in both marshes. Although the leaves, roots and soil organic matter of S. alterniflora had significantly higher delta C-13 values than those of S. mariqueter, S. alterniflora invasion did not significantly change the C-13- isotopic signature of soil emitted CH4 (p > 0.05). Generally, the CH4 emissions from both invasive S. alterniflora and native S. mariqueter soils in the salt marshes of Jiuduansha Island were very low (0.01-0.26 mg m(-2) h(-1)), suggesting that S. alterniflora invasion along the east coast of China may not be a significant potential source of atmospheric CH4. |
| 资助项目 | National Basic Research Program of China[2006CB403305] ; National Science Foundation of China[30670330] ; Ministry of Education of China[20050246013] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000273754800007 |
| 出版者 | SPRINGER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/982]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Bo |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 2.Fudan Univ, Inst Biodivers Sci, Coastal Ecosyst Res Stn Yangtze River Estuary, Minist Educ,Key Lab Biodivers Sci & Ecol Engn, Shanghai 200433, Peoples R China 3.Univ Oklahoma, Dept Bot & Microbiol, Norman, OK 73019 USA 4.Chinese Acad Forestry, Inst Forest Ecol Environm & Protect, Beijing 100091, Peoples R China 5.Xiamen Univ, Minist Educ Coastal & Wetland Ecosyst, Key Lab, Xiamen 361005, Fujian, Peoples R China 6.Xiamen Univ, Sch Life Sci, Xiamen 361005, Fujian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jiakuai,Cheng, Xiaoli,Luo, Yiqi,et al. Seasonal variation in CH4 emission and its C-13-isotopic signature from Spartina alterniflora and Scirpus mariqueter soils in an estuarine wetland[J]. PLANT AND SOIL,2010,327(1-2):85-94. |
| APA | Chen, Jiakuai.,Cheng, Xiaoli.,Luo, Yiqi.,Xu, Qing.,Lin, Guanghui.,...&Li, Bo.(2010).Seasonal variation in CH4 emission and its C-13-isotopic signature from Spartina alterniflora and Scirpus mariqueter soils in an estuarine wetland.PLANT AND SOIL,327(1-2),85-94. |
| MLA | Chen, Jiakuai,et al."Seasonal variation in CH4 emission and its C-13-isotopic signature from Spartina alterniflora and Scirpus mariqueter soils in an estuarine wetland".PLANT AND SOIL 327.1-2(2010):85-94. |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
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。