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Effects of experimental warming and increased precipitation on soil respiration in an alpine meadow in the Northern Tibetan Plateau
Yu, Cheng-Qun1; Wang, Jiang-Wei1,2; Shen, Zhen-Xi1; Fu, Gang1
2019-01-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume647Pages:1490-1497
Corresponding AuthorFu, Gang(fugang@igsnrr.ac.cn)
AbstractUncertainty 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.
KeywordCarbon cycling Increased temperature Nonlinear response
DOI10.1016/j.scitotenv.2018.08.111
WOS KeywordCLIMATE-CHANGE ; CO2 EFFLUX ; GRASSLAND ECOSYSTEM ; DIFFERENT RESPONSES ; CARBON-CYCLE ; COMPONENTS ; STEPPE ; WATER ; FOREST ; SEASON
Indexed BySCI
Language英语
Funding ProjectNational 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
Funding OrganizationNational 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
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000447090400149
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52716
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFu, Gang
Affiliation1.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
Recommended Citation
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.
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