广东省韶关市土壤环境背景值及其影响因素

Soil Environmental Background Values and Their Influencing Factors in Shaoguan City, Guangdong Province

通过对韶关市18,218平方千米土地质量地球化学调查,分析测试了该区表层土壤的54种元素和指标,并计算了全区及7类不同成土母质的土壤环境背景值。通过对比全国、广东省、韶关全区、各成土母质的背景值,分析认为,韶关市土壤环境背景值主要与其地质背景及区域成矿条件等密切相关。结合不同成土母质的地质背景,进一步分析了影响土壤环境背景值的主要因素。为土壤环境背景值地方标准制定、划分统计单元提供依据。

The land quality of 18,218 square kilometers in Shaoguan City was geochemically investigated, and 54 elements and indicators of the surface soil in the area were analyzed and tested. The soil environmental background values were also calculated for the whole region and 7 types of different soil-forming parent materials. The background values of the whole country, Guangdong Province, the whole region of Shaoguan, and each soil-forming parent material were compared. The analysis concluded that the background values of soil environment in Shaoguan are mainly related to its geological background and regional mineralization conditions. Combining the geological background of different soil-forming parent materials, the main factors affecting the soil environmental background values were further analyzed. It provides a basis for the development of local standards for soil environmental background values and the division of statistical units.