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. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Effects of experimental warming and increased precipitation on soil respiration in an alpine meadow in the Northern Tibetan Plateau

文献类型：期刊论文

作者Yu, Cheng-Qun1; Wang, Jiang-Wei1,2; Shen, Zhen-Xi1; Fu, Gang1
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2019-01-10
卷号647页码:1490-1497
关键词Carbon cycling Increased temperature Nonlinear response
ISSN号0048-9697
DOI10.1016/j.scitotenv.2018.08.111
通讯作者Fu, Gang(fugang@igsnrr.ac.cn)
英文摘要Uncertainty on the response of soil respiration (R-s) to warming and increased precipitation on the Tibetan Plateau can limit our ability to predict how alpine ecosystems will respond to future climate change. Based on a warming (control, low-and high-level) and increased precipitation (control, low-and high-level) experiment, the response of R-s to experimental warming and increased precipitation was examined in an alpine meadow in the Northern Tibetan Plateau from 2014 to 2017. The low-level warming increased soil temperature (T-s) by 1.19 degrees C and decreased soil moisture (SM) by 0.02 m(3) m(-3), whereas the high-level warming increased T-s by 2.88 degrees C and decreased SM by 0.04 m(3) m(-3) over the four growing seasons in 2014-2017. The low-and high-level increased precipitation did not affect T-s, but increased SM by 0.02 m(3) m(-3) and 0.04 m(3) m(-3), respectively, over the four growing seasons in 2014-2017. No significant main and interactive effects of experimental warming and increased precipitation on R-s were observed over the four growing seasons in 2014-2017. In contrast, there was a significant inter-annual variation of R-s in 2014-2017. There was a marginally significant quadratic relationship between the effect of experimental warming on R-s and warming magnitude. There was a negligible difference of R-s between the low-and high-level increased precipitation over the four growing seasons in 2014-2017 and R-s also showed a quadratic relationship with precipitation. Therefore, experimental warming and increased precipitation did not change R-s and R-s responded nonlinearly to experimental warming and increased precipitation in the alpine meadow in the Northern Tibetan Plateau. Growing season precipitation may play a more important role than experimental warming and increased precipitation in affecting R-s in the alpine meadow in the Northern Tibetan Plateau. (C) 2018 Elsevier B.V. All rights reserved.
WOS关键词CLIMATE-CHANGE ; CO2 EFFLUX ; GRASSLAND ECOSYSTEM ; DIFFERENT RESPONSES ; CARBON-CYCLE ; COMPONENTS ; STEPPE ; WATER ; FOREST ; SEASON
资助项目National Natural Science Foundation of China[31600432] ; National Key Research Projects of China[2017YFA0604801] ; National Key Research Projects of China[2016YFC0502006] ; Youth Innovation Research Team Project of Key Laboratory of Ecosystem Network Observation and Modeling[LENOM2016Q0002] ; Chinese Academy of Science Western Light Talents Program ; Natural Science Foundation of Tibet Autonomous Region ; Tibet Science and Technology Major Projects of Pratacultural Industry
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000447090400149
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China ; National Key Research Projects of China ; Youth Innovation Research Team Project of Key Laboratory of Ecosystem Network Observation and Modeling ; Chinese Academy of Science Western Light Talents Program ; Natural Science Foundation of Tibet Autonomous Region ; Tibet Science and Technology Major Projects of Pratacultural Industry
源URL[http://ir.igsnrr.ac.cn/handle/311030/52715]  
专题中国科学院地理科学与资源研究所
通讯作者Fu, Gang
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Cheng-Qun,Wang, Jiang-Wei,Shen, Zhen-Xi,et al. Effects of experimental warming and increased precipitation on soil respiration in an alpine meadow in the Northern Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,647:1490-1497.
APA Yu, Cheng-Qun,Wang, Jiang-Wei,Shen, Zhen-Xi,&Fu, Gang.(2019).Effects of experimental warming and increased precipitation on soil respiration in an alpine meadow in the Northern Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,647,1490-1497.
MLA Yu, Cheng-Qun,et al."Effects of experimental warming and increased precipitation on soil respiration in an alpine meadow in the Northern Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 647(2019):1490-1497.

入库方式： OAI收割

来源：地理科学与资源研究所

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。