Convergence in the relationship of CO2 and N2O exchanges between soil and atmosphere within terrestrial ecosystems
文献类型：期刊论文
| 作者 | Xu, Xiaofeng1,2; Tian, Hanqin1; Hui, Dafeng1,3 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2008-07-01 |
| 卷号 | 14期号:7页码:1651-1660 |
| 关键词 | Carbon Dioxide Nitrous Oxide Soils Terrestrial Ecosystems |
| 文献子类 | Article |
| 英文摘要 | Ecosystem CO2 and N2O exchanges between soils and the atmosphere play an important role in climate warming and global carbon and nitrogen cycling; however, it is still not clear whether the fluxes of these two greenhouse gases are correlated at the ecosystem scale. We collected 143 pairs of ecosystem CO2 and N2O exchanges between soils and the atmosphere measured simultaneously in eight ecosystems around the world and developed relationships between soil CO2 and N2O fluxes. Significant linear regressions of soil CO2 and N2O fluxes were found for all eight ecosystems; the highest slope occurred in rice paddies and the lowest in temperate grasslands. We also found the dominant role of growing season on the relationship of annual CO2 and N2O fluxes. No significant relationship between soil CO2 and N2O fluxes was found across all eight ecosystem types. The estimated annual global N2O emission based on our findings is 13.31 Tg N yr(-1) with a range of 8.19-18.43 Tg N yr(-1) for 1980-2000, of which cropland contributes nearly 30%. Our findings demonstrated that stoichiometric relationships may work on ecological functions at the ecosystem level. The relationship of soil N2O and CO2 fluxes developed here could be helpful in biogeochemical modeling and large-scale estimations of soil CO2 and N2O fluxes. |
| WOS关键词 | NITROUS-OXIDE EMISSIONS ; GREENHOUSE-GAS FLUXES ; CARBON-DIOXIDE ; FOREST ECOSYSTEMS ; NITRIC-OXIDE ; INTERANNUAL VARIABILITY ; NORTHERN PEATLANDS ; BRAZILIAN AMAZON ; TROPICAL FOREST ; TRACE GASES |
| 语种 | 英语 |
| WOS记录号 | WOS:000256446300018 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/67925]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Xiaofeng |
| 作者单位 | 1.Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA |
| 推荐引用方式 GB/T 7714 | Xu, Xiaofeng,Tian, Hanqin,Hui, Dafeng. Convergence in the relationship of CO2 and N2O exchanges between soil and atmosphere within terrestrial ecosystems[J]. GLOBAL CHANGE BIOLOGY,2008,14(7):1651-1660. |
| APA | Xu, Xiaofeng,Tian, Hanqin,&Hui, Dafeng.(2008).Convergence in the relationship of CO2 and N2O exchanges between soil and atmosphere within terrestrial ecosystems.GLOBAL CHANGE BIOLOGY,14(7),1651-1660. |
| MLA | Xu, Xiaofeng,et al."Convergence in the relationship of CO2 and N2O exchanges between soil and atmosphere within terrestrial ecosystems".GLOBAL CHANGE BIOLOGY 14.7(2008):1651-1660. |
入库方式： OAI收割
来源：地理科学与资源研究所
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