钟祥市东部地区水稻中锶及其累积效应研究

Strontium in Rice and Its Cumulative Effect in the East of Zhongxiang City

以钟祥市九里-长滩地区为研究对象,分析研究区表层土壤锶及水稻锶元素地球化学特征,结果表明,研究区稻米Sr、Fe、Mg、Mn、K、P元素含量明显高于日本及中国其他产地,富锶水稻产地环境优良。根据矿质元素含量累积效应和迁移规律分析发现,稻米中Sr和Ca关系密切,与土壤中Sr、Mg、P、Fe、Mn、pH等元素和指标相关性显著,在此基础上筛选出富锶水稻优势种植区9个行政村,结合优选的水稻品种,提高水稻品质。

Taking Jiuli-Changtan area of Zhongxiang City as the research object,the geochemical characteristics of strontium elements in the surface soil and rice in the study area are analyzed.The results show that the content of Sr,Fe,Mg,Mn,K,P elements in rice in the study area is significantly higher than that in rice from Japan and other places in China,and the environment of strontium rich rice is excellent.According to the analysis of accumulation effect and migration rule of mineral element content,it is found that Sr and Ca in rice are closely related to the elements and indexes such as Sr,Mg,P,Fe,Mn and pH in soil.On this basis,nine administrative villages in the dominant strontium rich rice planting area are screened out.Combined with the optimized rice varieties,rice quality is improved.