Short-term effect of increasing nitrogen deposition on CO(2), CH(4) and N(2)O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau, China
文献类型：期刊论文
| 作者 | Jiang, CM ; Yu, GR ; Fang, HJ ; Cao, GM ; Li, YN |
| 刊名 | atmospheric environment
 |
| 出版日期 | 2010 |
| 卷号 | 44期号:24页码:2920-2926 |
| 关键词 | Anthropogenic nitrogen deposition CO(2) CH(4) N(2)O Q(10) Water-filled pore space Alpine meadow Qinghai-Tibetan plateau |
| ISSN号 | 1352-2310 |
| 中文摘要 | an increasing nitrogen deposition experiment (2 g n m(-2) year(-1)) was initiated in an alpine meadow on the qinghai-tibetan plateau in may 2007. the greenhouse gases (ghgs), including co(2), ch(4) and n(2)o, was observed in the growing season (from may to september) of 2008 using static chamber and gas chromatography techniques. the co(2) emission and ch(4) uptake rate showed a seasonal fluctuation, reaching the maximum in the middle of july. we found soil temperature and water-filled pore space (wfps) were the dominant factors that controlled seasonal variation of co(2) and ch(4) respectively and lacks of correlation between n(2)o fluxes and environmental variables. the temperature sensitivity (q(10)) of co(2) emission and ch(4) uptake were relatively higher (3.79 for co(2), 3.29 for ch(4)) than that of warmer region ecosystems, indicating the increase of temperature in the future will exert great impacts on co(2) emission and ch(4) uptake in the alpine meadow. in the entire growing season, nitrogen deposition tended to increase n(2)o emission, to reduce ch(4) uptake and to decrease co(2) emission, and the differences caused by nitrogen deposition were all not significant (p < 0.05). however, we still found significant difference (p < 0.05) between the control and nitrogen deposition treatment at some observation dates for ch(4) rather than for co(2) and n(2)o, implying ch(4) is most susceptible in response to increased nitrogen availability among the three greenhouse gases. in addition, we found short-term nitrogen deposition treatment had very limited impacts on net global warming potential (gwp) of the three ghgs together in term of co(2)-equivalents. overall, the research suggests that longer study periods are needed to verify the cumulative effects of increasing nitrogen deposition on ghg fluxes in the alpine meadow. (c) 2010 elsevier ltd. all rights reserved. |
| 收录类别 | SCI |
| 公开日期 | 2011-12-13 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1659]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Jiang, CM,Yu, GR,Fang, HJ,et al. Short-term effect of increasing nitrogen deposition on CO(2), CH(4) and N(2)O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau, China[J]. atmospheric environment,2010,44(24):2920-2926. |
| APA | Jiang, CM,Yu, GR,Fang, HJ,Cao, GM,&Li, YN.(2010).Short-term effect of increasing nitrogen deposition on CO(2), CH(4) and N(2)O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau, China.atmospheric environment,44(24),2920-2926. |
| MLA | Jiang, CM,et al."Short-term effect of increasing nitrogen deposition on CO(2), CH(4) and N(2)O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau, China".atmospheric environment 44.24(2010):2920-2926. |
入库方式： OAI收割
来源：西北高原生物研究所
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