青海湖北岸人工草地植物中矿物元素特征与空间分布格局  

Characteristics and Spatial Distribution Pattern of Mineral Elements in Man-made Grassland on the North Bank of Qinghai Lake

作　　者：党敏灵 郭洁[2] 李天才[2] 

机构地区：[1]青海省新能源研究所有限公司,青海西宁810008 [2]中国科学院西北高原生物研究所,青海西宁810001

出　　处：《安徽农业科学》2013年第16期7172-7173,共2页Journal of Anhui Agricultural Sciences

基　　金：青海省自然科学基金项目(2013-Z-917);国家科技支撑计划项目(2007BAC30B04)

摘　　要：[目的]了解青海湖北岸人工草地植物中矿物元素的分布格局。[方法]采集青海湖北岸铁路边坡、三角城羊场和县城西的人工草地植物样品,采用原子吸收光谱法研究人工草地植物中钙、镁、硼、锂、铜、锌、铁、锰、铅等矿物元素的含量。[结果]青海湖北岸人工草地中矿物元素含量较天然草地植物更低,具有随着海拔高度的增加而增加的空间分布格局。[结论]矿物元素"饥饿效应"理论在青海湖北岸人工草地建设中具有指导意义。[ Objective ] To get to know the distribution pattern of mineral elements in plants on the man-made grassland on the north bank of Qinghai Lake. [ Method] Taking samples from three places around Qinghai Lake, separately on railway side slope, Sanjiaocheng sheep stud and West Town, atomic absorption spectrometry was used to determine the content of Ca, Mg, B, Li, Cu, Zn, Fe ,Mn and Pb. [ Result ] The content of each mineral element in plants on man-made grassland is lower than that on natural grassland ; the distribution pattern of mineral elements is that the content increases with elevation increase, [ Conclusion] ＂Starvation effect＂ theory of mineral elements plays a guiding role in man-made grassland construction.

关 键 词：人工草地 矿物元素 分布格局 青海湖北岸 

分 类 号：S812.8[农业科学—草业科学]