物探与化探2025，Vol.49Issue(2)：490-499,10.DOI:10.11720/wtyht.2025.2480
鄂西典型高硒区土壤和农作物硒含量特征及其影响因素研究
Characteristics and influencing factors of selenium content in soils and crops in typical high-selenium-content regions of western Hubei Province,China
摘要
Abstract
Understanding the distribution patterns of selenium in soils and crops is critical to developing selenium-rich industries.En-shi City in Hubei Province is known for its extensive selenium-rich soils,establishing this city as a promising area for selenium-rich ag-riculture.This study investigated Xintang Township in Enshi.Based on the organization and analysis of the geochemical data of 2 469 soil samples and 237 crop samples of maize,potatoes,rice,radish,cabbage,and tea,this study offered a systematic summary of the selenium distribution in soils and factors influencing selenium content in crops in the study area.The results indicate that the topsoils exhibit selenium content ranging from 0.14×10-6 to 25.74×10-6,with a background value of 0.81×10-6,which is 3.7 times the na-tional background of selenium content in soils.Selenium-rich soils cover 86.23%of the total area of the study area,and two NEE-di-rected selenium-rich belts are found.The spatial distribution of selenium in soils is closely related to soil-forming parent materials.Soils with Permian black rock series as parent materials exhibit notably higher selenium content,with an enrichment coefficient of 3.74.In high-selenium-content areas,rice,radish,and cabbage exhibit selenium enrichment rates exceeding 65%.Except for pota-toes,crops display positive correlations between their selenium content and the selenium content in their root soils,with tea showing the highest correlation(P<0.01,R=0.84).This suggests a close relationship between the selenium content in crops and their root soils.The crops in cultivated areas with Permian black rock series and Triassic carbonate rock series as soil-forming parent materials exhibit high bioconcentration factors of selenium,with soils and crops with Permian black rock series as soil-forming parent materials presen-ting the highest average selenium content.This highlights the significant impacts of soil-forming parent materials on crop selenium con-tent.关键词
新塘乡/富硒土壤/分布规律/农作物/硒含量/影响因素Key words
Xintang Township/high-selenium soil/distribution pattern/crop/selenium content/influencing factor分类
资源环境引用本文复制引用
秦浩林,李明龙,郑德顺,孙风波,张凯..鄂西典型高硒区土壤和农作物硒含量特征及其影响因素研究[J].物探与化探,2025,49(2):490-499,10.基金项目
国家自然科学基金青年基金项目(42302070) （42302070）
湖北省金土地工程项目(HBJTD20180105) （HBJTD20180105）
