Abstract: Except only a few of the trace elements in dominant plants of different vertical landscape such as Sr,Se,Zn,etc.do follow normal distribution,but most of the others are of logarithmic normal or normal deviation distribution.Study indicated that these elements are stable in low concentration in these plants,but the frequency of their high concentration occurrence is rather low.study on the causes of high concentration occurrence of trace elementrs in thes eplants can help us to reveal the abnormality of environment or physiological functional characteristics of different plants.Study shows that the plants of certain kind have the characteristics of selectively assimilating and rich collecting certain chemical elements.So contents of the trace elements in different kinds of plants are different.Trace elements in these plants are not only controlled by hereditary function but also affected by environmental factors.