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Assessing the fluctuation characteristics of grain output in China

文献类型: 外文期刊

作者: Liu, Yu 1 ; Gao, Bingbo 1 ; Pan, Yuchun 1 ;

作者机构: 1.Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

2.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

关键词: gross grain output;grain production;empirical mode decomposition;variance decomposition;China

期刊名称:OUTLOOK ON AGRICULTURE ( 影响因子:1.877; 五年影响因子:1.648 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: The characteristics of gross grain output between 1949 and 2012 and the effects of different crops and production regions on fluctuations between 1978 and 2012 in China were analysed using empirical mode decomposition and variance decomposition methods. Grain output has shown a tendency to increase since 1970. Rice, wheat and corn were the primary crops contributing to gross grain output fluctuation, with rice playing the most significant role. The middle-lower reaches of the Yangtze River contributed most to output fluctuation, followed by the northeast and Huang-Huai-Hai regions. The findings provide important evidence concerning trends in grain production in China.

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