摘要
[目的]根据不同地质背景的环境质量和产出富硒农产品的质量,评价不同研究区富硒农产品的优劣。[方法]研究了汕头市后坪、林招、金浦、兴平、东坑5个富硒土壤区Se的分布特征、成因来源以及所产出的富硒农产品,分析了研究区Se的迁移、转化和富集规律,按地质背景的不同分析了土壤有益元素、有毒有害元素的含量及其对农产品品质和富硒能力的影响。[结果]农产品的富硒主要受农产品类型、地质背景特征和土壤Se有效性的影响。[结论]农产品富硒的机制和Se的来源主要受不同地质背景下农产品对重金属元素吸收系数及营养元素含量高低的影响。
[ Objective ] Depending on the environmental quality of the different geological background and the quality of Se-rich agricultural products, the pros and cons of Se-rieh agricultural products at different research areas were evaluated. [ Method] The distribution of five Se-soil zones at HouPing, JinPu, LinZhao, XingPing and DongKeng in Shantou City, the source, and Se-rich agricultural products were studied. Ac- cording to different geological backgrounds, the affection of the content of soil beneficial elements was analyzed. In study area, Se- migration, Se- conversion and Se-enriehment patterns, the content of poisonous and harmful elements on the quality of agricultural products and the ability were studied. [ Result ] Se-rieh agricultural products mainly affected by agricultural type, geological background characteristics and soil Se effective- ness. [ Conclusion] Mechanisms of Se-rieh agricultural products and Se sources were mainly affected by the absorption coefficient of heavy metals and the content of nutrient elements under different geological background.
出处
《安徽农业科学》
CAS
2014年第12期3546-3549,共4页
Journal of Anhui Agricultural Sciences
关键词
硒
土壤
地球化学特征
Se
Soil
Characteristics of geochemistry
