Effects of Simulated NH_4~+ Deposition on CO_2 Fluxes in the Hulun Buir Meadow Steppe of Inner Mongolia, China
文献类型：期刊论文
| 作者 | Liu Xingren2; Zhang Leiming3 ; Zhang Caihong4; Ren Jianqiang1; Li Shenggong3
|
| 刊名 | Journal of Resources and Ecology
 |
| 出版日期 | 2015 |
| 卷号 | 6期号:3页码:129 |
| 关键词 | CO_2通量 氮沉降 氮素添加 内蒙古 |
| ISSN号 | 1674-764X |
| 英文摘要 | Atmospheric nitrogen (N) deposition may affect carbon (C) sequestration in terrestrial ecosystem. The main objective of this paper was to test the hypothesis that N addition would increase CO_2 emission in the N limited meadow steppe in Inner Mongolia, China. Response of CO_2 lfuxes to simulated N deposition was studied in the growing season of 2008 and 2009 by static chamber and gas chromatograph techniques. Paralel to the lfux mea-surements, soil temperature, soil moisture, TOC, DOC, soil NH_4~+ and NO_3~- were measured at the same time. The results indicated that two-year N additions had no signiifcant effect on NH_4~+, but slightly increased NO_3~- in the later period. The HN treatment tended to increase CO_2 lfuxes in the two years, and LN treatment tended to decrease CO_2 lfuxes in 2008, and shifted to increase CO_2 lfuxes in later growing season of 2009. N addition signiifcantly in-creased the aboveground biomass and root biomass. The correlation between CO_2 lfuxes and moisture or temperature factors did not signiifcantly change due to N addition, but N addition enhanced the moisture sensitivity of CO_2 lfuxes as wel as the temperature sensitivity of CO_2 lfuxes. These results suggest that the increasing ammonium N deposition would be likely to stimulate CO_2 lfuxes in the meadow steppe of Inner Mongolia, China. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/153985]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences 2.Agricultural Clear Watershed Group, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences 3.Institute of Geographic Sciences and Natural Resources Research, CAS 4.School of Forestry, Shandong Agricultural University |
| 推荐引用方式 GB/T 7714 | Liu Xingren,Zhang Leiming,Zhang Caihong,et al. Effects of Simulated NH_4~+ Deposition on CO_2 Fluxes in the Hulun Buir Meadow Steppe of Inner Mongolia, China[J]. Journal of Resources and Ecology,2015,6(3):129. |
| APA | Liu Xingren,Zhang Leiming,Zhang Caihong,Ren Jianqiang,&Li Shenggong.(2015).Effects of Simulated NH_4~+ Deposition on CO_2 Fluxes in the Hulun Buir Meadow Steppe of Inner Mongolia, China.Journal of Resources and Ecology,6(3),129. |
| MLA | Liu Xingren,et al."Effects of Simulated NH_4~+ Deposition on CO_2 Fluxes in the Hulun Buir Meadow Steppe of Inner Mongolia, China".Journal of Resources and Ecology 6.3(2015):129. |
入库方式： OAI收割
来源：地理科学与资源研究所
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