丘陵区土地质量地球化学调查方法技术——以服务赣州六县精准脱贫土地质量地球化学调查为例

doi:10.11720/wtyht.2020.1566

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Abstract

In view of the characteristics of obvious changes in topography, geologic background and significant influence on geochemical element content in hilly area, this paper puts forward a method for geochemical investigation of land quality in hilly areas based on geological background analysis, with emphasis on soil geochemical survey of arable land, garden andgentle-slope land.According to the geological and geographical features of Ganzhou, detailed sample method laying in basins, valleys and mountains are,the method of plot-assignment based on geological background, the combination of eco-geological investigation and soil geochemical survey, the method of combining the pollution-free se-enriched concentration and the land quality files as the core.

Key words： Hilly area land quality geochemical survey method Ganzhou

Received: 02 December 2019 Published: 24 June 2020

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	Guo-Guang CHEN
	Xiao-Hong LIANG
	Jie ZHANG
	Zhong-Fang YANG

Cite this article:

Guo-Guang CHEN,Xiao-Hong LIANG,Jie ZHANG, et al. Geochemical survey method of land quality in hilly areas:A case study of the geochemical survey of land quality in Ganzhou[J]. Geophysical and Geochemical Exploration, 2020, 44(3): 463-469.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.1566 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I3/463

Comparison of characteristics of primary soil and secondary soil

Features of soft residual strata

Soil environmental geochemistry comprehensive grading map of Jinxian formation in the middle Pleistocene series in Dongguang village of Hefeng, Jiangxi
a—evaluation results before assignment;b—evaluation results of map spot assignment without sampling points
1—first class (clean);2—second class (still clean);3—third class (light pollution);4—fourth class (moderate pollution);5—fifth grade (heavy pollution);6—soil survey sample;7—quaternary geological unit boundary;8—plate boundary;9—residential area;10—water body

Soil nutrient geochemical comprehensive grading map of Jinxian formation in the middle Pliocene series in Dongguang village of Hefeng, Jiangxi
a—evaluation results before assignment;b—evaluation results of map spot assignment without sampling points
1—first class (rich);2—second class (more abundant);3—third class (medium);4—fourth class (less available);5—fifth grade (lack of);6—soil survey sample;7—quaternary geological unit boundary;8—plate boundary;9—residential area;10—water body

Schematic diagram of sample layout
black point is the original deployment, red point is the supplementary

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