Element concentrations in Rheum palmatum and R.likiangense plants and soil in Tibet plateau

Abstract

Abstract: The characteristics of element concentrations in Rheum palmatum and R.likiangense plants and soil were studied using ICP method.The results showed that the P concentrations in soil was significantly lower than that in leaves and rhizomes;Fe concentration was 50～100 times higher in soil than in rhizomes,and leaves, and without significant difference between rhizomes and leaves;Na,Mn and Cu concentrations appeared soil>leaves>rhizomes;and Ca concentration showed soil <leaves <rhizomes for R.palmatum,and soil>leaves>rhizomes for R.likiangense. Although K, Mg, Ca, Mn and Zn concentrations were obviously different between soils of the 2 species, K and Mg concentrations were consistent in their leaves or rhizomes,and the difference of Ca, Mn and Zn concentrations between their rhizomes was insignificant.

Key words: Tibet Plateau, Rheum palmatum, Rheum likiangense, Element content

XIE Zongqiang. Element concentrations in Rheum palmatum and R.likiangense plants and soil in Tibet plateau[J]. Chinese Journal of Applied Ecology, 2000, (6): 903-906.

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