Study on cultivated land surface soil organic matter spatial characteristics based on GWR model --A case study of Xinfu district

This paper chose the influence factors of cultivated land soil organic matter content, and setting up the quantitative criteria for those factors, calculating the related results with the revised data of soil organic matter content from 2006 to 2010 in Xinfu district using GWR model, conducting the spatial visualization analysis, exploring the effects of various factors on SOM. It is found that the multicenter effect of SOM emerges in Xinfu district. The distance to village, altitude, field surface slope, ground water level, pH, total nitrogen, terrain relief range total number of households affects the SOM content significantly.