Spatial distribution and quantitative evaluation of soil fertility quality in Jintan county, Jiangsu province, have been
studied through combinating the methods of statistics,
geostatistics and GIS with the changed Nemoro formula as evaluation model.The results showed a low level of soil total nitrogen and a high level of soil pH, available phosphorus, available potassium, CEC and organic matter. The low pH and available phosphorus content may be comparative limiting factors of soil fertility in some area of Jintan county. As for the
spatial distribution of soil qualities in Jintan county, it showed that soil quality index are the highest at the catchment of DanJinLi river area, followed by the plain in east Jintan county and then by the highland in west; it also showed that soil quality index became higher from northwest to southeast in Jintan county and the highest soil quality index was found in the influx area around the Lake Tao. The distributions of soil quality index in Jintan county are strongly related to topography, river flow and landuse patterns in Jintan county, but the topography in the county is the determinant of the distribution of soil quality index in Jintan county.