甘肃北山土墩泉地区土壤测量采样粒级方法试验

Test of Soil Sampling Particle Grade Method for Soil Survey in Tudunquan Area of Beishan, Gansu Province

研究区地球化学景观属于干旱荒漠区戈壁残山,为了解决区内土壤测量技术方法,在前人研究的基础上,选择青石泉金矿区作为试验区,系统研究了区内土壤垂直剖面特征,风成砂及钙碱层是影响区内土壤样品采集的主要影响因素;根据不同土壤粒级样品测试数据的统计分析,土壤测量采样优势粒级为-4^+20目,并有效的去除了风积物与钙碱层的干扰。

The geochemical landscape in the study area belongs to the Gobi residual mountain in the arid desert area,In order to solve the technical method of soil survey in the area,On the basis of previous studies,Choosing Qingshiquan Gold Mining Area as Test Area,The vertical profile characteristics of soil in the area were systematically studied,Aeolian sand and calc-alkali layer are the main factors affecting soil sample collection in the area;Through statistical analysis and comparison of test data of different soil particle size samples, it is concluded that the dominant particle size of soil sample is -4 to + 20 meshes, and the interference of aeolian and calc-alkali layers is effectively removed.