海南岛儿童发钙量与土壤交换性钙关系的探讨

通过对海南岛上万名学龄前儿童头发钙含量以及所处地域农耕旱地土壤交换性钙的调查与分析发现：土壤钙与儿童头发钙含量呈极显著正相关；海南岛儿童头发钙均值低于国内其它地方的报道值；土壤环境钙含量的高低，能间接反映人体钙的营养状况。

Relationship between the Contents of Calcium in Children's Hair and in the Soil in Hainan Island.

Investigation and analysis have been made on the calcium in the hair of more than 10 000 children in Hainan Island and the exchangeable-Ca in the soil of long-cultivated land of the areas where the children live. The results show that the calcium content of the hair of the children positively relates with the calcium content of the soil. This indicates that the calcium content of the soil can be indirectly reflected from the calcium nutrition in the human body. The average Ca-level of the hair of the children in Hainan is lower than that of other areas.