Climate change amplifies gross nitrogen turnover in montane grasslands of Central Europe in both summer and winter seasons
文献类型：期刊论文
| 作者 | Wang, Changhui3; Chen, Zhe; Unteregelsbacher, Sebastian; Lu, Haiyan; Gschwendtner, Silvia2; Gasche, Rainer; Kolar, Allison; Schloter, Michael2; Kiese, Ralf; Butterbach-Bahl, Klaus |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 22期号:9页码:2963-2978 |
| 关键词 | ammonia-oxidizing archaea ammonia-oxidizing bacteria freeze-thaw frozen soil gross N mineralization gross nitrification montane grassland |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.13353 |
| 文献子类 | Article |
| 英文摘要 | The carbon- and nitrogen-rich soils of montane grasslands are exposed to above-average warming and to altered precipitation patterns as a result of global change. To investigate the consequences of climatic change for soil nitrogen turnover, we translocated intact plant-soil mesocosms along an elevational gradient, resulting in an increase of the mean annual temperature by approx. 2 degrees C while decreasing precipitation from approx. 1500 to 1000mm. Following three years of equilibration, we monitored the dynamics of gross nitrogen turnover and ammonia-oxidizing bacteria (AOB) and archaea (AOA) in soils over an entire year. Gross nitrogen turnover and gene levels of AOB and AOA showed pronounced seasonal dynamics. Both summer and winter periods equally contributed to cumulative annual N turnover. However, highest gross N turnover and abundance of ammonia oxidizers were observed in frozen soil of the climate change site, likely due to physical liberation of organic substrates and their rapid turnover in the unfrozen soil water film. This effect was not observed at the control site, where soil freezing did not occur due to a significant insulating snowpack. Climate change conditions accelerated gross nitrogen mineralization by 250% on average. Increased N mineralization significantly stimulated gross nitrification by AOB rather than by AOA. However, climate change impacts were restricted to the 2-6cm topsoil and rarely occurred at 12-16cm depth, where generally much lower N turnover was observed. Our study shows that significant mineralization pulses occur under changing climate, which is likely to result in soil organic matter losses with their associated negative impacts on key soil functions. We also show that N cycling processes in frozen soil can be hot moments for N turnover and thus are of paramount importance for understanding seasonal patterns, annual sum of N turnover and possible climate change feedbacks. |
| 学科主题 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1365-2486 |
| WOS关键词 | AMMONIA-OXIDIZING ARCHAEA ; NITRIFICATION RATES ; N MINERALIZATION ; GAS FLUXES ; TEMPERATURE SENSITIVITY ; MICROBIAL COMMUNITIES ; SPECIES COMPOSITION ; SEMIARID GRASSLAND ; SATURATED SPRUCE ; OXIDE EMISSIONS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000381077300004 |
| 出版者 | WILEY |
| 资助机构 | Helmholtz-BMBF TERENO initiative ; BMBF SUSALPS projectFederal Ministry of Education & Research (BMBF) ; FORKAST project of the Bavarian government ; Humboldt PostDoc Fellowship |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25156]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.German Res Ctr Environm Hlth GmbH, Res Unit Environm Genom, D-85764 Neuherberg, Germany 2.Chinese Acad Sci IBCAS, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China 3.Karlsruhe Inst Technol, Inst Meteorol & Climate Res Atmospher Environm Re, D-82467 Garmisch Partenkirchen, Germany |
| 推荐引用方式 GB/T 7714 | Wang, Changhui,Chen, Zhe,Unteregelsbacher, Sebastian,et al. Climate change amplifies gross nitrogen turnover in montane grasslands of Central Europe in both summer and winter seasons[J]. GLOBAL CHANGE BIOLOGY,2016,22(9):2963-2978. |
| APA | Wang, Changhui.,Chen, Zhe.,Unteregelsbacher, Sebastian.,Lu, Haiyan.,Gschwendtner, Silvia.,...&Dannenmann, Michael.(2016).Climate change amplifies gross nitrogen turnover in montane grasslands of Central Europe in both summer and winter seasons.GLOBAL CHANGE BIOLOGY,22(9),2963-2978. |
| MLA | Wang, Changhui,et al."Climate change amplifies gross nitrogen turnover in montane grasslands of Central Europe in both summer and winter seasons".GLOBAL CHANGE BIOLOGY 22.9(2016):2963-2978. |
入库方式： OAI收割
来源：植物研究所
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