IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Alternative TitleEffects of short-term warming and nitrogen addition on CO_2 emission during growing season in an alpine swamp meadow ecosystem of Qinghai-Tibetan Plateau
白炜1; 奚晶阳1; 王根绪2
Source Publication生态学杂志
Contribution Rank2
Other AbstractTo investigate the interactive effects of global warming and increased nitrogen deposition on ecosystem respiration,a short-term experiment was carried out during growth season in an alpine swamp meadow of Qinghai-Tibetan Plateau,using open top champers (OTC) and nitrogen addition to simulate warming and nitrogen deposition,respectively. Warming,nitrogen addition, and their interaction significantly increased ecosystem respiration rate by affecting plant biomass, soil microbial quantity and activity,and soil nutrient status. The correlations between ecosystem respiration and each of the environmental factors were exponential or quadric multinomial,with the significance levels of such regressions declining with the increases of complexity of treatments. As soil water availability is sufficient in swamp meadow,air temperature and soil temperature at the depth of 5 cm could explain 80% of the variations of ecosystem respiration. Warming significantly increased above- and below-ground biomass,and enhanced the proportions of belowground biomass. Nitrogen addition significantly increased above-ground biomass and had no effect on below-ground biomass. Under warming condition,nitrogen addition significantly increased above-and below-ground biomass,but with no impacts on biomass allocation.
Keyword生态系统呼吸 生物量分配 增温 施氮 高寒沼泽草甸
Indexed ByCSCD
Citation statistics
Cited Times:5[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author白炜
Recommended Citation
GB/T 7714
白炜,奚晶阳,王根绪. 短期增温与施氮对青藏高原高寒沼泽草甸生态系统CO_2排放的影响[J]. 生态学杂志,2019,38(4):927-936.
APA 白炜,奚晶阳,&王根绪.(2019).短期增温与施氮对青藏高原高寒沼泽草甸生态系统CO_2排放的影响.生态学杂志,38(4),927-936.
MLA 白炜,et al."短期增温与施氮对青藏高原高寒沼泽草甸生态系统CO_2排放的影响".生态学杂志 38.4(2019):927-936.
Files in This Item:
File Name/Size DocType Version Access License
短期增温与施氮对青藏高原高寒沼泽草甸生态(780KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[白炜]'s Articles
[奚晶阳]'s Articles
[王根绪]'s Articles
Baidu academic
Similar articles in Baidu academic
[白炜]'s Articles
[奚晶阳]'s Articles
[王根绪]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[白炜]'s Articles
[奚晶阳]'s Articles
[王根绪]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 短期增温与施氮对青藏高原高寒沼泽草甸生态系统CO2排放的影响.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.