中国癌症与土壤中钼元素的关系

利用土壤中钼元素资料 110 376个数据 ,癌死亡调查资料 7870 80例 ,研究了胃癌、食管癌、肝癌、宫颈癌、肺癌、大肠癌、白血病、鼻咽癌、乳腺癌死亡率与人群生存区土壤环境中钼元素的关系。结果表明 ,胃癌、食管癌、宫颈癌死亡率与钼元素有相关性 ,等级相关系数分别为 - 0 .4 2 4 6( P<0 .0 2 5) ,- 0 .54 53( P<0 .0 0 2 5) ,- 0 .3369( P<0 .0 5)。

Cancer and Soil Mo in China

In Geheyan Flatland alongside the Qingjiang River, Cunninghamia lanceolata Choerospondias axillaris forest is a typical secondary forest, rather complex in composition and structure, and dominated with deciduous broad leaf species of trees, showing the characteristics of the transitional vegetation section in between mid subtropics and north subtropics. The species diversity of the forest in this area is richer than in other secondary forests in the same region, which reveals that the community was disturbed moderately before. Today, the forest has been fairly well reestablished, tending to a mixed forest of evergreen broad leaf and deciduous broad leaf trees in succession.