Effects of warming and changing precipitation rates on soil respiration over two years in a desert steppe of northern China
文献类型：期刊论文
| 作者 | Liu, Tao; Xu, Zhen-Zhu ; Hou, Yan-Hui; Zhou, Guang-Sheng
|
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2016 |
| 卷号 | 400期号:1-2页码:15-27 |
| 关键词 | Changing precipitation Climate change Desert steppe Free air temperature increase Soil respiration Warming |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-015-2705-0 |
| 文献子类 | Article |
| 英文摘要 | Soil respiration (R (s)) has become a central issue in global carbon cycle research. In this study, we determined the seasonal changes in soil carbon efflux and the underlying mechanism with regard to the effects of abiotic and biotic factors in a degraded steppe ecosystem. A warming treatment and a control, and three watering levels were applied using a free air temperature increase facility. R (s) was measured throughout the year, and soil nutrition properties, as well as microbial biomass carbon were determined over the growing season. R (s) rates were significantly higher during the growing season than the non-growing season; however, the warming treatment led to a marked increase in R (s) in the winter. Soil temperature and R (s) were described by an exponential function with a Q (10) of 1.92 (R (2) = 0.74, p < 0.01); root respiration (21.9 %) was lower than heterotrophic respiration (78.1 %). Soil organic carbon, soil moisture, root biomass, and soil ammonium-N were determined to be driving R (s) during the growing season. The most important factor was soil organic carbon content in the 0-10 cm soil layer, with soil moisture showing little direct effect on R (s). Soil environmental variables including temperature, moisture, nutrition status, root growth, and soil microbial activity might co-regulate soil carbon emission, which would be considered critical in assessing the carbon balance under climatic change in arid areas. |
| 学科主题 | Agronomy ; Plant Sciences ; Soil Science |
| 出版地 | DORDRECHT |
| 电子版国际标准刊号 | 1573-5036 |
| WOS关键词 | MICROBIAL RESPIRATION ; CLIMATE-CHANGE ; CO2 EFFLUX ; TEMPERATURE ; MANIPULATION ; NITROGEN ; WATER ; VARIABILITY ; RESPONSES ; ECOSYSTEM |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000371276000002 |
| 出版者 | SPRINGER |
| 资助机构 | China Special Fund for Meteorological Research in the Public Interest (Major projects) [GYHY201506001-3] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170456] ; Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05050408] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25107]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.[Liu, Tao 3.Xu, Zhen-Zhu 4.Hou, Yan-Hui 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Tao,Xu, Zhen-Zhu,Hou, Yan-Hui,et al. Effects of warming and changing precipitation rates on soil respiration over two years in a desert steppe of northern China[J]. PLANT AND SOIL,2016,400(1-2):15-27. |
| APA | Liu, Tao,Xu, Zhen-Zhu,Hou, Yan-Hui,&Zhou, Guang-Sheng.(2016).Effects of warming and changing precipitation rates on soil respiration over two years in a desert steppe of northern China.PLANT AND SOIL,400(1-2),15-27. |
| MLA | Liu, Tao,et al."Effects of warming and changing precipitation rates on soil respiration over two years in a desert steppe of northern China".PLANT AND SOIL 400.1-2(2016):15-27. |
入库方式： OAI收割
来源：植物研究所
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