为揭示土壤有机质空间变异特征及影响因素,为矿粮复合区土壤肥力分析和评价提供参考,以河南省矿粮复合区--新郑市为研究区,运用GIS技术和地统计学相结合的方法,研究土壤有机质空间变异特征及影响因素,并利用研究区的数字高程模型,构建土壤有机质空间分布的三维景观图.结果表明,新郑市土壤有机质具有中等强度的空间变异性和空间相关性,其空间变异是由自然因素和人为因素共同作用的.研究区土壤有机质空间分布的三维景观图能直观反映有机质空间分布和所处地理环境的关系.%In order to reveal the spatial variability and influencing factors of soil organic matter,the reference for the analysis and evaluation of soil fertility is provided in a mine-grain complex area,it is used GIS technology and goestatistics to research the spatial variability and influencing factors of soil organic matter,and the three-dimensional landscape map is built through using the DEM of Xinzheng City.The results showed that the soil organic matter of Xinzheng had moderate spatial variability and spatial correlation,the spatial variability was caused by the natural and human factor.The three-dimensional landscape map of soil organic matter could intuitively reflect the relationship between the spatial distribution of organic matter and the geographical environment.
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