The contents of Fe element of Medicago hispida and Taraxacum mongolicum in iron mine region are 5 times and about 7 times, respectively, as high as that in non-mine region.

• 南苜蓿的fe元素含量 ,铁矿区是非矿区的 5倍。 蒲公英的fe元素含量 ,铁矿区是非矿区的近 7倍