Spatial-temporal Change of Grain Production in China Based on GIS

The quantitative and qualitative analysis was adopted by using the GIS technology and spatial statistical analysis method to analyze the spatial-temporal change of grain production in China.The problem that exists in grain production was discussed.Results showed that in different period,the grain production of eight major grain-producing areas either increased or decreased,but the overall trend was to increase;as far as provincial change was concerned,grain proportion of northeast dropped significantly,the West rose slightly and the central provinces rose quickly.And the regression model was used to quantify the effect of temporal-spatial change factors on grain production,and it was concluded that the grain planting areas were the main influential factors.