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化肥是粮食的“粮食”。文中采用锡尔分解的方法考察了2004-2013年不同地区化肥施用强度的区域差异特征及其变化规律,并进一步分析其收敛性。研究结果表明:我国化肥施用强度的区域总差异减少,粮食功能区区域间差异是导致全国层面化肥施用强度存在差异的主要原因,而主产区差异又是造成区域内差异的主要原因;化肥总体上存在σ收敛和β收敛,不同化肥品种的收敛性和收敛速度存在一定差异。
Fertilizer is the food “food ”. In this paper, the regional decomposition of different intensities of chemical fertilizer application in 2004-2013 in different regions of China was investigated by the Siier decomposition method and its variation was analyzed, and its convergence was further analyzed. The results showed that the total regional differences in the intensity of chemical fertilizer application in China decreased, and the differences among the functional areas of foodstuffs were the main reasons leading to the differences in the intensity of chemical fertilizer application at the national level. However, On the existence of σ convergence and β convergence, different varieties of fertilizer convergence and convergence rate there is a certain difference.