钟祥地区长寿人群地域分布与环境微量元素关系探讨

Study on the Relationship between Regional Distribution of LongevityPopulation and Environmental Trace Elements in Zhongxiang Area

以湖北省钟祥市为研究区,从村级尺度上分析自然地理环境中饮用水、土壤、粮油、蔬菜中微量元素含量特征与长寿人口分布之间的关系,并与其他非长寿地区和国内外参考值进行对比;通过各介质中微量元素之间的差异分析,探讨长寿人群地域分布差异性的关键元素。①钟祥市饮用水呈弱碱性,富含Sr、Se、Li元素,低Pb元素;土壤中富含Sr、Se、Ca、Na、Mg、P元素,低V、Al、Hg、Pb、As元素。②综合农产品中微量元素含量分析,大米中富含Se、Cu、Fe、Sr元素;小麦面粉及玉米中富含Se、Mo、Co元素;长寿地区白菜、萝卜中Cu、Se、S、Fe元素含量明显高于其它地区。③钟祥地区土壤Se、Sr、Zn、Mg、Mn与百岁老人地域分布有较明显的相关性。

Taking Zhongxiang City of Hubei Province as the research area,this paper analyzes the relationship between the characteristics of trace elements in drinking water,soil,grain and oil,vegetables and the distribution of longevity population at the village level,and compares with other non-longevity areas and reference values at home and abroad.Through the analysis of the differences of trace elements in various media,the regional distribution difference of longevity population is discussed.The main research results are as follows:①The drinking water in Zhongxiang City is weakly alkaline,rich in Sr,Se,Li and low in Pb;the soil is rich in Sr,Se,Ca,Na,Mg,P,and low in V,Al,Hg,Pb and as elements.②comprehensive analysis of trace elements in agricultural products shows that rice is rich in Se,Cu,Fe and Sr;wheat flour and corn are rich in Se,Mo and Co;the contents of Cu,Se,S and Fe in Cabbage and radish in longevity area are significantly higher than those in other areas.③there is obvious correlation between Se,Sr,Zn,Mg,Mn and regional distribution of centenarians in Zhongxiang area.