Belowground responses of Picea asperata seedlings to warming and nitrogen fertilization in the eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Liu, Qing1; Yin, Huajun1; Chen, Jinsong1; Zhao, Chunzhang1; Cheng, Xinying1; Wei, Yunyan2; Lin, Bo1 |
| 刊名 | ECOLOGICAL RESEARCH
 |
| 出版日期 | 2011-05 |
| 卷号 | 26期号:3页码:637-648 |
| 关键词 | Picea asperata Root Rhizosphere microbial process Rhizosphere soil process |
| ISSN号 | 0912-3814 |
| DOI | 10.1007/s11284-011-0824-5 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The impacts of global climatic change on belowground ecological processes of terrestrial ecosystems are still not clear. We therefore conducted an experiment in the subalpine coniferous forest ecosystem of the eastern edges of the Tibetan Plateau to study roots of Picea asperata seedlings and rhizosphere soil responses to soil warming and nitrogen availability from April 2007 to December 2008. The seedlings were subjected to two levels of temperature (ambient; infrared heater warming) and two nitrogen levels (0 or 25 g m(-2)year(-1) N). We used a free air temperature increase from an overhead infrared heater to raise both air and soil temperature by 2.1 and 2.6A degrees C, respectively. The results showed that warming alone significantly increased total biomass, coarse root biomass and fine root biomass of P. asperata seedlings. Both total biomass and fine root biomass were increased, but coarse root biomass was significantly decreased by nitrogen fertilization and warming combined with nitrogen fertilization. Warming induced a prominent increase in soil organic carbon (SOC) and NO(3) (-)-N of rhizosphere soil, while nitrogen fertilization significantly decreased SOC and NH(4) (+)-N of rhizosphere soil. The warming, fertilization and warming x N fertilization interaction decreased soil microbial C significantly, but substantially increased soil microbial N. These results suggest that nitrogen deposition combined with warmer temperatures under future climatic change possibly will have no effect on fine root production of P. asperata seedlings, but could enhance the nitrification process of their rhizosphere soils in subalpine coniferous forests. |
| 学科主题 | Environment/ecology |
| URL标识 | 查看原文 |
| WOS关键词 | SOIL MICROBIAL BIOMASS ; FINE-ROOT DYNAMICS ; TEMPERATE STEPPE ; ELEVATED-TEMPERATURE ; TALLGRASS PRAIRIE ; EXTRACTION METHOD ; NORWAY SPRUCE ; GLOBAL CHANGE ; GROWTH ; CARBON |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000290538900018 |
| 出版者 | SPRINGER TOKYO |
| 源URL | [http://210.75.237.14/handle/351003/29928]  |
| 专题 | 生物多样性与生态系统服务领域_生态研究 |
| 通讯作者 | Liu, Qing |
| 作者单位 | 1.Chinese Acad Sci, Ctr Ecol Studies, Chengdu Inst Biol, Chengdu 610041, Peoples R China; 2.Life Science College,China West Normal University,Nanchong 637002, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Liu, Qing,Yin, Huajun,Chen, Jinsong,et al. Belowground responses of Picea asperata seedlings to warming and nitrogen fertilization in the eastern Tibetan Plateau[J]. ECOLOGICAL RESEARCH,2011,26(3):637-648. |
| APA | Liu, Qing.,Yin, Huajun.,Chen, Jinsong.,Zhao, Chunzhang.,Cheng, Xinying.,...&Lin, Bo.(2011).Belowground responses of Picea asperata seedlings to warming and nitrogen fertilization in the eastern Tibetan Plateau.ECOLOGICAL RESEARCH,26(3),637-648. |
| MLA | Liu, Qing,et al."Belowground responses of Picea asperata seedlings to warming and nitrogen fertilization in the eastern Tibetan Plateau".ECOLOGICAL RESEARCH 26.3(2011):637-648. |
入库方式： OAI收割
来源：成都生物研究所
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