关键词: 金堂县, 空间变异, GIS, 精确施肥

Abstract: In this paper, the spatial distribution pattern of the total nitrogen, available nitrogen, available phosphorus and total phosphorus in surface purple soil(0~20cm) of the research region which is in Shahe village and Jinqiao village in Jintang county of Sichuan basin hilly region, are analyzed by applying geostatistics combined with GIS. Preliminary analysis is made for the spatial variability of the soil nutrients by using the group map of the soil nutrients with ordinary kriging. These results are useful for further application in precision fertilization.

Key words: Jintang county, spatial variability, GIS, variable rate fertilization