Responses of Ecosystem CO2 Fluxes to Short-Term Experimental Warming and Nitrogen Enrichment in an Alpine Meadow, Northern Tibet Plateau
Joint Authors
Zong, Ning
Shi, Peili
Jiang, Jing
Song, Minghua
Xiong, Dingpeng
Ma, Weiling
Fu, Gang
Zhang, Xianzhou
Shen, Zhenxi
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-29
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Over the past decades, the Tibetan Plateau has experienced pronounced warming, yet the extent to which warming will affect alpine ecosystems depends on how warming interacts with other influential global change factors, such as nitrogen (N) deposition.
A long-term warming and N manipulation experiment was established to investigate the interactive effects of warming and N deposition on alpine meadow.
Open-top chambers were used to simulate warming.
N addition, warming, N addition × warming, and a control were set up.
In OTCs, daytime air and soil temperature were warmed by 2.0°C and 1.6°C above ambient conditions, but soil moisture was decreased by 4.95 m3 m−3.
N addition enhanced ecosystem respiration (Reco); nevertheless, warming significantly decreased Reco.
The decline of Reco resulting from warming was cancelled out by N addition in late growing season.
Our results suggested that N addition enhanced Reco by increasing soil N availability and plant production, whereas warming decreased Reco through lowering soil moisture, soil N supply potential, and suppression of plant activity.
Furthermore, season-specific responses of Reco indicated that warming and N deposition caused by future global change may have complicated influence on carbon cycles in alpine ecosystems.
American Psychological Association (APA)
Zong, Ning& Shi, Peili& Jiang, Jing& Song, Minghua& Xiong, Dingpeng& Ma, Weiling…[et al.]. 2013. Responses of Ecosystem CO2 Fluxes to Short-Term Experimental Warming and Nitrogen Enrichment in an Alpine Meadow, Northern Tibet Plateau. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1012222
Modern Language Association (MLA)
Zong, Ning…[et al.]. Responses of Ecosystem CO2 Fluxes to Short-Term Experimental Warming and Nitrogen Enrichment in an Alpine Meadow, Northern Tibet Plateau. The Scientific World Journal No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1012222
American Medical Association (AMA)
Zong, Ning& Shi, Peili& Jiang, Jing& Song, Minghua& Xiong, Dingpeng& Ma, Weiling…[et al.]. Responses of Ecosystem CO2 Fluxes to Short-Term Experimental Warming and Nitrogen Enrichment in an Alpine Meadow, Northern Tibet Plateau. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1012222
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1012222