1∶50 000 Gaoluji Sheet was chosen as the research object in this study. The soil elements at two sampling densities of 6 points/km 2 and 4 points/km 2 are similar in geochemical parameter characteristics and spatial distribution. The sampling density of 4 points/km 2 in the map can meet the requirements of 1∶50,000 land quality survey and evaluation work. Based on the comparative analysis of the geochemical characteristics of soil elements under different sampling densities, the authors hold that the minimum sampling density (4 points/km 2) can be used when 1∶50,000 land quality survey is conducted in a relatively continuous farming area in the Huaibei plain coverage area. The soil environmental quality evaluation results show that the quality of the soil environment in this area is excellent. The priority is given to protecting the soil, and the safe use type soil is only in scattered distribution. The main impact indicator is Cd. The results can provide a scientific basis for the implementation of green pollution-free industries in this area.
陶春军, 史春鸿, 张笑蓉, 管后春, 贾十军. 淮北平原覆盖区土壤采样密度及其环境质量研究——以1∶5万高炉集幅为例[J]. 物探与化探, 2021, 45(1): 200-206.
TAO Chun-Jun, SHI Chun-Hong, ZHANG Xiao-Rong, GUAN Hou-Chun, JIA Shi-Jun. Research on soil sampling density and environmental quality of Huaibei plain covered area: A case study of 1∶50 000 Gaoluji Sheet. Geophysical and Geochemical Exploration, 2021, 45(1): 200-206.
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