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Modeling analysis of the characteristics of selenium-rich soil in heavy metal high background area and its impact on main crops
Ecological Informatics ( IF 5.1 ) Pub Date : 2021-09-04 , DOI: 10.1016/j.ecoinf.2021.101420
Taoyuan Xie 1, 2, 3 , Zeming Shi 1, 3 , Yuwen Gao 2 , Lin Tan 4 , Li Meng 5
Affiliation  

In order to improve the product quality of crops, the characteristics of the selenium-rich soil in the heavy metal high background area and its impact on the main crops are studied. Analyze the bioavailability and existence of selenium element, and obtain the classification standard of soil selenium content. Taking Shitai County in Anhui Province as the research area, soil samples from this area were collected, and the results of the collection were made into a field sampling report. The sampling results were analyzed by statistical methods to obtain the measurement results of the selenium content in the soil of the study area. Finally, the LSMM model was established to realize the effective analysis of the characteristics of selenium-rich soil in the heavy metal high background area. The research results show that under different heavy metal pollution conditions, the growth of corn, rice and soybean crops is different. Generally speaking, heavy metals will restrict the healthy growth of crops; the effect of selenium absorption activity will directly or indirectly affect the growth and development of crops; the selenium enrichment rate of crops shows the characteristics of corn>rice>soybeans.



中文翻译:

重金属高背景区富硒土壤特征及其对主要作物影响的建模分析

为提高作物产品品质,研究了重金属高背景区富硒土壤的特征及其对主要作物的影响。分析硒元素的生物有效性和存在情况,得到土壤硒含量的分级标准。以安徽省石台县为研究区,采集该区土壤样品,并将采集结果制作成野外采样报告。对采样结果进行统计分析,得到研究区土壤硒含量的测定结果。最后,建立LSMM模型,实现对重金属高背景区富硒土壤特征的有效分析。研究结果表明,在不同的重金属污染条件下,玉米、水稻和大豆作物的生长情况是不同的。一般来说,重金属会限制作物的健康生长;硒吸收活性的影响将直接或间接影响作物的生长发育;作物的硒富集率呈现出玉米>水稻>大豆的特征。

更新日期:2021-09-30
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