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

doi:10.11720/wtyht.2021.1159

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Abstract

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.

Key words： Huaibei plain covered area Gaoluji Sheet sampling density geochemical characteristics soil environmental quality

Received: 01 April 2020 Published: 01 March 2021

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	Articles by authors
	Chun-Jun TAO
	Chun-Hong SHI
	Xiao-Rong ZHANG
	Hou-Chun GUAN
	Shi-Jun JIA

Cite this article:

Chun-Jun TAO,Chun-Hong SHI,Xiao-Rong ZHANG, et al. Research on soil sampling density and environmental quality of Huaibei plain covered area: A case study of 1∶50 000 Gaoluji Sheet[J]. Geophysical and Geochemical Exploration, 2021, 45(1): 200-206.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1159 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I1/200

General geological map of research area

Detection limit of soil sample element analysis method

Soil environmental quality grading standard

Statistical values of elemental geochemical parameters in two sampling densities

Geochemical maps of soil Corg, Cd and Hg in two sampling densities

Comprehensive classification of soil environmental quality

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