土壤—牧草—家畜系统中六种元素含量的分析

Content of Six Elements in Soil-Herbage-Livestock System from the Region Around Lasa in Tibet

对西藏环拉萨地区土壤、牧草、家畜(羊)被毛中六种元素含量进行了测定。结果表明:土壤及牧草中硒含量处于缺乏的临界水平,被毛中硒含量低于临界值,提示羊群缺硒。

Six elements in soil,herbage and animal(sheep)hair from the region around Lasa in Tibet were determined.The results indicated that the selenium in soil and grass was in the critical standard of selenium -deficiency,Selenium contents in sheep hiar were under the criticial values,and it pointed out that sheep herd of the region around Lasa were selenium-deficiency.