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以新疆阜康三工河流域为研究对象,分析了不同样点的土壤肥力特征,利用地统计学和地理信息系统(GIS),研究流域土壤的空间异质性和格局。结果表明,土壤肥力要素的变异系数在5.00%~66.77%,各土壤肥力质量要素接近正态分布;8种土壤肥力要素均存在空间变异结构特征;土壤有机质与氮素空间变化趋势相似,且相关性极显著;速效磷和速效钾的空间格局相似性较大;人类干预极大影响土壤空间格局。
Taking Fukang Sankong River Basin in Xinjiang as the research object, the characteristics of soil fertility at different sampling sites were analyzed, and the spatial heterogeneity and pattern of soil in the basin were studied by using geostatistics and geographic information system (GIS). The results showed that the coefficients of variation of soil fertility elements ranged from 5.00% to 66.77%, and the soil fertility quality factors were close to the normal distribution. The spatial variability of eight soil fertility elements was similar. The spatial variations of soil organic matter and nitrogen were similar The spatial pattern of available P and available K are similar. The human intervention greatly affects the soil spatial pattern.