With Fengqiu County of He＇nan Province as the study area

we use ArcGIS 9.2 statistical analysis module(geostatistical analysis) to investigate the spatial variability of soil nutrients. The results show that each of the nutrients in 0-20 cm soil showed a normal distribution and moderate-intensity variation. Specif-ically

soil organic matter had the highest coefficient of variation of 0.665 6

ammonium nitrogen had 0. 411 6

and potassium(K) had 0. 321 3

respectively. Space structural analysis showed that the exponential model fitted best for the distribution of ammonium nitrogen

and the spherical model for K

and the Gaussian model for organic matter. Using ordinary Kriging interpolation

the spatial distribution of organic matter and am-monium nitrogen exhibited banded patterns

while K showed a patchy pattern. The spatial distribution of or-ganic matter was higher along the middle zone along the direction of northeast-southwest

K had higher val-ues in northern central area and lower values in southeast

and ammonium nitrogen was higher in northwest and lower in southeast.