论文--中国科学院地理科学与资源研究所

论文

论文题目：	Response of Growing Season Gross Primary Production to El Nino in Different Phases of the Pacific Decadal Oscillation over Eastern China Based on Bayesian Model Averaging
第一作者：	Li Yueyue, Dan Li, Peng Jing, Wang Junbang etc.
联系作者：
发表年度：	2021
摘　　要：
英文摘要：	Gross primary production (GPP) plays a crucial part in the carbon cycle of terrestrial ecosystems. A set of validated monthly GPP data from 1957 to 2010 in 0.5 degrees x 0.5 degrees grids of China was weighted from the Multi-scale Terrestrial Model Intercomparison Project using Bayesian model averaging (BMA). The spatial anomalies of detrended BMA GPP during the growing seasons of typical El Nino years indicated that GPP response to El Nino varies with Pacific Decadal Oscillation (PDO) phases: when the PDO was in the cool phase, it was likely that GPP was greater in northern China (32 degrees-38 degrees N, 111 degrees-122 degrees E) and less in the Yangtze River valley (28 degrees-32 degrees N, 111 degrees-122 degrees E); in contrast, when PDO was in the warm phase, the GPP anomalies were usually reversed in these two regions. The consistent spatiotemporal pattern and high partial correlation revealed that rainfall dominated this phenomenon. The previously published findings on how El Nino during different phases of PDO affecting rainfall in eastern China make the statistical relationship between GPP and El Nino in this study theoretically credible. This paper not only introduces an effective way to use BMA in grids that have mixed plant function types, but also makes it possible to evaluate the carbon cycle in eastern China based on the prediction of El Nino and PDO.
刊物名称：	ADVANCES IN ATMOSPHERIC SCIENCES
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论文类别：	SCI