Karst Groundwater Spatial Information Statistics and Combination Analysis in Zunyi

The article is based on the spatial information statistic analysis theory and method to analyze the karst groundwater environment in Zunyi.Make the Creager(Kriging) estimate value isogram of sulfate(SO42-),ammonia nitrogen(NH4+),nitrite(NO2-),nitrate(NO3-) plasma which contained in the karst groundwater of Zunyi urban area.According to the isograms,it analyzes and evaluate the four kind of ion's spatial distribution characteristics,the scope and the spatial variation rule.