Xie Z
Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093.
Ying Yong Sheng Tai Xue Bao. 2000 Dec;11(6):903-6.
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.
采用电感耦合等离子体质谱法（ICP）研究了掌叶大黄和丽江大黄植株及土壤中元素浓度特征。结果表明，土壤中磷的浓度显著低于叶片和根茎；土壤中铁的浓度比根茎和叶片中的高50 - 100倍，根茎和叶片之间无显著差异；钠、锰和铜的浓度表现为土壤＞叶片＞根茎；掌叶大黄中钙的浓度表现为土壤＜叶片＜根茎，丽江大黄中钙的浓度表现为土壤＞叶片＞根茎。虽然两种植物土壤中钾、镁、钙、锰和锌的浓度存在明显差异，但它们叶片或根茎中钾和镁浓度一致，根茎中钙、锰和锌浓度差异不显著。
