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Temperature-mediated responses of carbon fluxes to precipitation variabilities in an alpine meadow ecosystem on the Tibetan Plateau
Chen, Ning1,2; Zhang, Yangjian1,3,4; Zhu, Juntao1; Zu, Jiaxing1,2; Huang, Ke1; Li, Junxiang5; Liu, Yaojie1; Cong, Nan1; Tang, Ze1,2; Wang, Li5; Zhu, Yixuan1,2
2019-07-23
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Pages13
Corresponding AuthorZhang, Yangjian(zhangyj@igsnrr.ac.cn)
AbstractEffects of climate warming and changing precipitation on ecosystem carbon fluxes have been intensively studied. However, how they co-regulate carbon fluxes is still elusive for some understudied ecosystems. To fill the gap, we examined net ecosystem productivity (NEP), gross ecosystem productivity (GEP,) and ecosystem respiration (ER) responses to multilevel of temperature increments (control, warming 1, warming 2, warming 3, warming 4) in three contrasting hydrological growing seasons in a typical semiarid alpine meadow. We found that carbon fluxes responded to precipitation variations more strongly in low-level warming treatments than in high-level ones. The distinct responses were attributable to different soil water conditions and community composition under low-level and high-level warming during the three growing seasons. In addition, carbon fluxes were much more sensitive to decreased than to increased precipitation in low-level warming treatments, but not in high-level ones. At a regional scale, this negative asymmetry was further corroborated. This study reveals that future precipitation changes, particularly decreased precipitation would induce significant change in carbon fluxes, and the effect magnitude is regulated by climate warming size.
Keywordalpine meadow carbon fluxes community composition distinct response precipitation warming
DOI10.1002/ece3.5439
WOS KeywordGROSS PRIMARY PRODUCTIVITY ; ASIAN DESERT SHRUBS ; WATER-USE ; CONTRASTING RESPONSES ; SEMIARID ECOSYSTEMS ; PLANT-PRODUCTION ; SOIL-MOISTURE ; GRASSLAND ; EXCHANGE ; CLIMATE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41501103] ; National Natural Science Foundation of China[41571195] ; National Natural Science Foundation of China[41725003] ; National Natural Science Foundation of China[41801083] ; International Partnership Program of Chinese Academy of Sciences[131C11KYSB20160061]
Funding OrganizationNational Natural Science Foundation of China ; International Partnership Program of Chinese Academy of Sciences
WOS Research AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000477500900001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58186
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Yangjian
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
5.Peking Univ, Shenzhen Grad Sch, Shenzhen, Peoples R China
Recommended Citation
GB/T 7714
Chen, Ning,Zhang, Yangjian,Zhu, Juntao,et al. Temperature-mediated responses of carbon fluxes to precipitation variabilities in an alpine meadow ecosystem on the Tibetan Plateau[J]. ECOLOGY AND EVOLUTION,2019:13.
APA Chen, Ning.,Zhang, Yangjian.,Zhu, Juntao.,Zu, Jiaxing.,Huang, Ke.,...&Zhu, Yixuan.(2019).Temperature-mediated responses of carbon fluxes to precipitation variabilities in an alpine meadow ecosystem on the Tibetan Plateau.ECOLOGY AND EVOLUTION,13.
MLA Chen, Ning,et al."Temperature-mediated responses of carbon fluxes to precipitation variabilities in an alpine meadow ecosystem on the Tibetan Plateau".ECOLOGY AND EVOLUTION (2019):13.
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