青海达坂山地区高山植物中重金属元素分布特征

分析了青海达坂山地区16种高山植物重金属元素含量。结果表明，9种重金属元素中Cr、Ni、CO3种含量高于陆生植物的正常含量值；Hg含量极少，在检测限以下；其余5种含量正常；同种元素含量种间差异不大，不同植物对于同种元素的累积比较均一，各种植物对As、Se、Sb3种元素的富集能力高于其它元素；植物中CO与Cr、Sb；Pb与Cd之间有很好的协同作用，而Se与Co、Cd、Sb有明显的拈抗作用。相关分析的结果表明，植物对重金属元素的吸收受土壤元素含量的影响。

Analysis on Heavy Metal Elenent Accumulation in Periglacial Plant in Qinghai Daban Mountain Area

The content of heavy metal element of 16 species periglacial plant in Qinghai Daban mountain area was analyzed.The results show that the content of Cr,Ni,Co in periglacial plants is higher than common terrestrial plant,Hg is too exiguous to be examined,other 5 heavy metal element content is normal,the variation of same element content among different species is not very larger,different plants absorb approximately equal quantity of the same element,but the periglacial plants have much higher capability of absorbing As,Se,Sb from the soil.The absorption of Co can co-operate with the absorption of Cr,Sb;Pb can co-operate with Cd;Se counterworks with Co,Cd,Sb.The correlate analysis shows that heavy metal element accumulation in periglacial plants is influenced by the heavy metal element content in soil.