【摘要】 对内蒙古栗钙土典型草原地带122种植物中氮、磷、钾、钙、硫、铁、铝、硅、钠9种化学元素含量研究的结果表明:1.植物体内上述9种化学元素含量分属于三个水平:氮、钾、钙为10^—10⁰（%）;硫、磷、硅、钠为10⁰—10^-1（%）;铁、铝为10^-1—10^-2（%）。2.对122种植物化学元素含量进行了分组,得出这一地区122种植物不同化学元素含量的三种类型（高含量、中等含量和低含量）、含量变化的范围和不同类型植物种的数目。更多还原

【Abstract】 The contents of N,P,K,Ca,S,Fe,Al,Si,Na,of 122 plant species in the XiLin River valley in Nei Monggol were studied.These results have shown as fol- lows: 1.The contents of N,P.K,Ca,S,Fe,A1,Si,Na of 122 plants belong to three levels: N,K,Ca are 10¹—10⁰（%）P,S,Si,Na are 10⁰—10^-1（%）;Fe,Alare 10^-1—10^-2（%）. 2.The contents of chemical elements of 122 plants were divided into three levels （high,middle and low content）.The range of the content and the number of plants in each level were obtained.更多还原