中国地质调查2023，Vol.10Issue(6)：69-76,8.DOI:10.19388/j.zgdzdc.2023.06.08
广西钦州典型农业区表层土壤Se含量分布特征及影响因素
Distribution characteristics and influencing factors of sunface soil selenium content in typical agricultural areas of Qinzhou in Guangxi
摘要
Abstract
In order to analyze the content level and spatial distribution characteristics of selenium in the surface soil of typical areas in Qinzhou of Guangxi,and the influencing factors of selenium content distribution,and pro-vide scientific basis for the planning and utilization of selenium rich land,the authors in this paper collected 348 surface soil samples from Xinguang Farm to discuss the impact of different factors on the distribution of selenium element,through multiple statistical analysis,cold and hot spot analysis,geographic detectors.The results Xin-guang show that selenium content in the surface soil of the study area was 0.07-2.56 mg/kg,with an average value of 0.91 mg/kg,and 89.38%of the samples met the selenium enrichment standard.The spatial distribution of soil selenium content was aggregated,and the hot spots were mainly located in the western and northwestern part of the study area.The statistical analysis shows that soil derived from Devonian carbonate rocks and clastic rocks has higher selenium content,and there is a significant correlation between Al2O3,Fe2O3 and selenium con-tent.Al2O3,Fe2O3,soil parent material,and organic matter content have strong explanatory power for the spatial variability of selenium content,by geodetector analysis.The comprehensive analysis shows that parent material and soil physicochemical property are the main factors affecting the distribution of soil selenium content.This re-search has good reference value for the investigation and utilization of selenium rich land in Qinzhou.关键词
钦州市/表层土壤/Se/影响因素/地理探测器Key words
Qinzhou City/surface soil/selenium/influencing factors/geographic detectors分类
天文与地球科学引用本文复制引用
阎琨,杨源祯,李伟..广西钦州典型农业区表层土壤Se含量分布特征及影响因素[J].中国地质调查,2023,10(6):69-76,8.基金项目
中国地质调查局"广西钦州湾海岸带综合地质调查(编号:DD20191024)""广西北仑河口—茅尾海一带重要红树林湿地资源调查(编号:ZD20220131)"和"胶东北部海岸带与岛礁综合地质调查(编号:ZD20220604)"项目联合资助. （编号:DD20191024）
