气候变化领域集成服务门户(CCPortal): The influence of atmospheric intraseasonal oscillations on terrestrial biospheric CO2 fluxes in Southeast China Forest

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DOI	10.1007/s00382-021-05702-2
	The influence of atmospheric intraseasonal oscillations on terrestrial biospheric CO2 fluxes in Southeast China Forest
	Li J.; Kug J.-S.; Mao J.
发表日期	2021
ISSN	0930-7575
起始页码	2239
结束页码	2254
英文摘要	With its strong carbon sequestration capacity and significantly expanding trend, forest over southeast China (SEC) is an important biospheric carbon sink. As intraseasonal oscillation (ISO) is a remarkable variability of the East Asian summer monsoon—the major climate system influencing the carbon exchange of SEC forest, the objective of this study is to examine the impact of atmospheric intraseasonal oscillation on CO2 fluxes in SEC forest based on daily CO2 fluxes and meteorological data. Significant 15‒60-day ISO of CO2 fluxes is identified in SEC forest during May‒August of 1980‒2013. The 15‒60-day ISO of net ecosystem exchange between atmosphere and biosphere mainly results from that of gross primary productivity (GPP), with the explained variances greater than 50% over most SEC forest areas. Due to the high drought-resistance of SEC forest, the 15‒60-day ISO of its GPP is controlled primarily by local solar radiation, which is in turn associated with the northward-propagating atmospheric ISO. Suppressed (active) convection anomaly and the thermally induced anomalous anticyclone (cyclone) on its northwestern side initiate from the southern South China Sea and then propagate northward to SEC coherently in the form of a Rossby wave-like pattern. Decreased (increased) cloud cover associated with the suppressed (active) convection anomaly leads to more (less) solar radiation reaching the SEC forest canopy, thus promoting (impairing) forest productivity. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
英文关键词	CO2 fluxes; Gross primary productivity; Intraseasonal oscillation; Southeast China Forest
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183542
作者单位	State Key Laboratory of Severe Weather (LASW) and Institute of Climate System, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea; China University of Geosciences, Wuhan, 430074, China
推荐引用方式 GB/T 7714	Li J.,Kug J.-S.,Mao J.. The influence of atmospheric intraseasonal oscillations on terrestrial biospheric CO2 fluxes in Southeast China Forest[J],2021.
APA	Li J.,Kug J.-S.,&Mao J..(2021).The influence of atmospheric intraseasonal oscillations on terrestrial biospheric CO2 fluxes in Southeast China Forest.Climate Dynamics.
MLA	Li J.,et al."The influence of atmospheric intraseasonal oscillations on terrestrial biospheric CO2 fluxes in Southeast China Forest".Climate Dynamics (2021).