Abstract
Aiming to provide the support for maintaining grain security in China, we discussed the spatial distribution of China’s grain production and its changes in 1980-2013 using GIS spatial analysis method based on statistics data. The results show that regional differences of food production in China is obvious, and characterized as “up in south, low in north”on the north-south direction and “low in center, high in both sides “on the east-west direction. From 1980 to 2013, the concentration degree of grain production improved, and the output significantly concentrated to the northern and central regions. The regions with the rapid increase in grain yield are almost located in the Midwest China, and the northern China has also made a significant increase.
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