摘要
本文研究了内蒙古地区不同生境类型中土壤与牧草中硒元素的含量水平。结果表明：土壤中硒含量在０．０３０～０．１５９ｍｇ／ｋｇ之间，平均为０．１２２ｍｇ／ｋｇ；牧草中硒的含量在０．０２１～０．７７２ｍｇ／ｋｇ，平均为０．０９９ｍｇ／ｋｇ。土壤表现为缺硒，牧草表现为禾本科牧草缺硒，其他所分析牧草不缺硒。
In this paper.the selenium content level of the soils and herbages in the different ecosystems of Inner Mongolia area have been studied.The study results showed that the selenium contents in the soils and herbages are 0.030～0.159mg/kg and 0.021～0.772mg/kg respectively,and the average values 0.122mg/kg and 0.099 mg/kg respectively.The soils and grasses are lack of selenium,but the others analyzed herbages are not lack of selenium.
关键词
生境类型
土壤
牧草
草原
硒
soil herbage
selenium content level
Type of ecosystem.
