In order to studf the rejat,onship between trace element and cow lvmphosarcoma(LS),a survey was made geochemically and soil-chemically around a Cow Farm with a high LS incidence rate.

• 为考查微量元素与奶牛淋巴肉瘤之间的关系，作者对淋巴肉瘤高发区（L牧场）周围环境的地球化学和土壤化学做了调查。结果表明：L牧场周围存在一约5，平方公里的地球化学综合异常区。