中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 植物研究所
  3. 中国科学院植物研究所
  4. 植被与环境变化国家重点实验室
Soil Temperature Dynamics Modulate N2O Flux Response to Multiple Nitrogen Additions in an Alpine Steppe

文献类型：期刊论文

作者Peng, Yunfeng; Wang, Guanqin2; Li, Fei2; Zhou, Guoying3,4; Yang, Guibiao2; Fang, Kai2; Liu, Li2; Qin, Shuqi2; Zhang, Dianye2; Yang, Yuanhe2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
出版日期2018
卷号123期号:10页码:3308-3319
关键词Nitrous oxide nonlinear response greenhouse gases ammonia oxidizing archaea (AOA) ammonia oxidizing bacteria (AOB) denitrifiers
ISSN号2169-8953
DOI10.1029/2018JG004488
文献子类Article
英文摘要Emissions of nitrous oxide (N2O) contribute to global warming and stratospheric ozone depletion. Anthropogenic N2O emissions predominately result from the addition of synthetic nitrogen (N) fertilizers to terrestrial ecosystems. Usually, an exponential increase in N2O emissions occurs as N addition rates increase to exceed plant demands. However, most evidence to date is from temperate areas, with little information available for alpine ecosystems. Here we examined the changes in N2O flux under eight N addition levels and the mechanisms regulating these changes in a Tibetan alpine steppe. Our results showed that N2O emission rate increased linearly with increasing N additions. Even when soil N availability exceeded plant N uptake, no sharp N2O emissions were observed. The likely explanation was that decreased soil temperature limited the growth of nitrification-related microorganisms, mainly ammonia-oxidizing archaea, which further attenuated the positive response of N2O emissions to excess N supply. These findings suggest that the N-induced changes in soil temperature regulate the growth of nitrifying microorganisms and the subsequent N2O fluxes in this alpine steppe, and the exponential N2O emission-N rate relationship observed in warm regions may not be simply extrapolated to alpine ecosystems.
学科主题Environmental Sciences ; Geosciences, Multidisciplinary
出版地WASHINGTON
电子版国际标准刊号2169-8961
WOS关键词OXIDE EMISSIONS ; NONLINEAR RESPONSES ; CARBON FLUXES ; SPECIES LOSS ; FERTILIZER ; WATER ; NITRIFICATION ; COMMUNITY ; BACTERIA ; ARCHAEA
语种英语
WOS记录号WOS:000450721000015
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31770521, 31670482] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSWSMC049] ; Youth Innovation Promotion Association CAS ; Chinese Academy of Sciences-Peking University Pioneer Collaboration Team ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA19070303]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20563]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Key Lab Tibetan Med Res, Xining, Qinghai, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
4.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining, Qinghai, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Yunfeng,Wang, Guanqin,Li, Fei,et al. Soil Temperature Dynamics Modulate N2O Flux Response to Multiple Nitrogen Additions in an Alpine Steppe[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2018,123(10):3308-3319.
APA Peng, Yunfeng.,Wang, Guanqin.,Li, Fei.,Zhou, Guoying.,Yang, Guibiao.,...&Yang, Yuanhe.(2018).Soil Temperature Dynamics Modulate N2O Flux Response to Multiple Nitrogen Additions in an Alpine Steppe.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,123(10),3308-3319.
MLA Peng, Yunfeng,et al."Soil Temperature Dynamics Modulate N2O Flux Response to Multiple Nitrogen Additions in an Alpine Steppe".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 123.10(2018):3308-3319.

入库方式： OAI收割

来源：植物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。