CAJ | 학술논문

通过对广西北部湾沿海经济区土壤硒含量调查，研究了土壤总硒含量的分布特征、成因来源及其与土壤理化性质的关系。研究结果表明，表层土壤总硒含量为（0．06～0．90）×10－6，平均值为0．44×10－6，深层土壤总硒含量为（0．07～0．92）×10－6，平均值为0．44×10－6，研究区表层和深层土壤分别有62．2％和64．5％属于富硒土壤。表层土壤总硒对深层土壤总硒具有一定的继承性，土壤总硒主要受控于成土母质。相关分析表明，土壤中总硒含量与C、OrgC、Al2 O3、TFe2 O3等呈显著性正相关，说明土壤中有机碳、铁锰氧化物对硒的地球化学行为有重要影响。研究区生态环境质量优良，具有开发富硒农产品的潜力。
통과대엄서북부만연해경제구토양서함량조사，연구료토양총서함량적분포특정、성인래원급기여토양이화성질적관계。연구결과표명，표층토양총서함량위（0．06～0．90）×10－6，평균치위0．44×10－6，심층토양총서함량위（0．07～0．92）×10－6，평균치위0．44×10－6，연구구표층화심층토양분별유62．2％화64．5％속우부서토양。표층토양총서대심층토양총서구유일정적계승성，토양총서주요수공우성토모질。상관분석표명，토양중총서함량여C、OrgC、Al2 O3、TFe2 O3등정현저성정상관，설명토양중유궤탄、철맹양화물대서적지구화학행위유중요영향。연구구생태배경질량우량，구유개발부서농산품적잠력。
Based on geochemical investigation of soil in the study area, the authors studied characteristics of selenium distribution, sources and physical?chemical properties of soil in the Beibu Gulf coastal economic zone of Guangxi. The results show that the total se?lenium content in surface soil is from 0.06×10-6 to 0.90×10-6, with the average value of 0.44×10-6. The total selenium content in deep soil is from 0.07×10-6 to 0.92×10-6, with the average value of 0.44×10-6. The total selenium content in the surface soil to a certain ex?tent has inherited the selenium from the parent materials. The correlation analysis indicates that the total selenium content in soil has a significant positive correlation with carbon, organic carbon, aluminum oxide and total iron oxide, indicating that organic carbon, iron and manganese oxides in the soil and the weathering and leaching extent play important roles in the geochemical behaviors of selenium. The ecological quality of the study area is excellent with the potential of developing selenium?rich agricultural products.