青海大坂山典型植物与种植作物中矿物元素的分布特征

Distribution Characteristics of Mineral Elements in Typical Plants and Cultivated Crops on Daban Mountain of Qinghai

[目的]研究青海大坂山典型植物和种植作物中矿物元素的分布特征。[方法]在青海大坂山地区按照海拔高度的增加种植作物——青稞和胡萝卜,采集典型植物样品和种植作物样品,并采用原子吸收光谱法分别测试其中矿物元素含量。[结果]青海大坂山地区典型植物和种植作物中矿物元素具有随着海拔高度的增加而增加的分布特征。[结论]作物种植试验对矿物元素"饥饿效应"理论的检验与完善提供了部分试验依据,高原植物中丰富的Fe营养可能具有抗高原缺氧的功能作用。

Abstract [ Objective] The research aimed to study distribution characteristics of mineral elements in typical plants and cultivated crops on Da- ban Mountain of Qinghai. [ Method] On Daban Mountain of Qinghai, Hordeum vugare and Daucus carota were planted as altitude increase, and samples of typical plants and cultivated crops were collected. By using atomic absorption spectrometry, mineral element content was measured. [ Result] Mineral elements in typical plants and cultivated crops on Daban Mountain of Qinghai increased as altitude. [ Conclusion] Crop plant- ing test provided some experimental evidences for inspection and improvement of ＂hunger effect＂ theory for mineral element, and rich Fe in plat- eau t^lants may have the functional role of anti-altitude hypoxia.