长寿之乡如皋的生态地球化学特征研究

Study on eco-geochemical characteristics of Rugao

在前人研究如皋长寿成果的基础上,从生态地球化学入手,研究和分析了如皋地区土壤溶液、浅层地下水、大气干湿沉降物中的微量元素含量特点。结果表明,有益于人体健康的微量元素Se、I、Zn等丰富,而有害于健康的As、Hg、Cd、Pb等重金属在江苏为最低,表明良好的生态地球化学环境是如皋地区长寿的根本原因。

Based on the previous research results on longevity for Rugao in Jiangsu Province, and in light of eco-geochemistry, the authors studied and analyzed the characteristics of microelements in soil solution, shallow ground water, wet and dry deposition of the at- mosphere. It was concluded that the microelements of selenium, iodine and zinc were rich and they were beneficial to human health, those heavy element contents harmful to human health like arsenic, mercury, cadmium and lead were the lowest in the whole province, demonstrating that a fine eco-geochemical environment was the origin of longevity in Rugao.