NEIGAE OpenIR
Effects of warming on N2O fluxes in a boreal peatland of Permafrost region, Northeast China
Q. Cui, C. C. Song, X. W. Wang, F. X. Shi, X. Y. Yu and W. W. Tan
2018
发表期刊Science of the Total Environment
卷号616页码:427-434
摘要Climate warming is expected to increasingly influence boreal peatlands and alter their greenhouse gases emissions. However, the effects of warming on N2O fluxes and the N2O budgets were ignored in boreal peatlands. Therefore, in a boreal peatland of permafrost zone in Northeast China, a simulated warming experiment was conducted to investigate the effects of warming on N2O fluxes in Betula. Fruticosa community (B. Fruticosa) and Ledum. palustre community (L. palustre) during the growing seasons from 2013 to 2015. Results showed that warming treatment increased air temperature at 1.5 m aboveground and soil temperature at 5 cm depth by 0.6 degrees C and 2 degrees C, respectively. The average seasonal N2O fluxes ranged from 6.62 to 9.34 mu g m(-2) h(-1) in the warming plot and ranged from 0.41 to 4.55 mu g m(-2) h(-1) in the control plots. Warming treatment increased N2O fluxes by 147% and transformed the boreal peatlands from a N2O sink to a source. The primary driving factors for N2O fluxes were soil temperature and active layer depth, whereas soil moisture showed a weak correlation with N2O fluxes. The results indicated that warming promoted N2O fluxes by increasing soil temperature and active layer depth in a boreal peatland of permafrost zone in Northeast China. Moreover, elevated N2O fluxes persisted in this region will potentially drive a noncarbon feedback to ongoing climate change. (c) 2017 Elsevier B.V. All rights reserved.
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/9156
专题中国科学院东北地理与农业生态研究所
作者单位中国科学院东北地理与农业生态研究所
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Q. Cui, C. C. Song, X. W. Wang, F. X. Shi, X. Y. Yu and W. W. Tan. Effects of warming on N2O fluxes in a boreal peatland of Permafrost region, Northeast China[J]. Science of the Total Environment,2018,616:427-434.
APA Q. Cui, C. C. Song, X. W. Wang, F. X. Shi, X. Y. Yu and W. W. Tan.(2018).Effects of warming on N2O fluxes in a boreal peatland of Permafrost region, Northeast China.Science of the Total Environment,616,427-434.
MLA Q. Cui, C. C. Song, X. W. Wang, F. X. Shi, X. Y. Yu and W. W. Tan."Effects of warming on N2O fluxes in a boreal peatland of Permafrost region, Northeast China".Science of the Total Environment 616(2018):427-434.
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