Spatial autocorrelation analysis of fertilizer consumption in Guizhou

This paper used ArcGis9.3 and GeoDA10.0 software to establish spatial autocorrelation analysis of counties in Guizhou, analyzed the spatial association of fertilizer consumption of each county in 2000 and 2010, it also analyzed the spatial association between fertilizer consumption and grain yield of each county in 2010. The results showed that the tendency of fertilizer consumption presented high in western areas and low in eastern areas in 2010. The spatial correlation of fertilizer using amount in each county was positive in 2000 and 2010, the fertilizer consumption distribution is not entirely random, but is clustered on the space. Moran scatter plot showed that more counties were located in the first and the third quadrants, while relatively less in the second and the forth quadrants, which demonstrated their distribution was not balanced.For the grain yield, the spatial correlation of the fertilizer consumption was also positive, which demonstrated the higher the fertilizer application, the higher grain production. Generally speaking, Guizhou fertilizer consumption presented high-high and low-low clustering distribution