青海湖北岸草地矿物元素蓄积分异性  

THE ACCUMULATING DIFFERENTIATION OF MINERAL ELEMENTS IN GRASSLAND ON THE NORTH BANK OF QINGHAI LAKE

作　　者：李天才[1] 

机构地区：[1]中国科学院西北高原生物研究所,青海西宁810008

出　　处：《青海草业》2015年第3期2-6,共5页Qinghai Prataculture

基　　金：青海省自然科学基金项目(2013-Z-917)

摘　　要：为了比较青海湖北岸退化与封育草地中矿物元素特征,在青海湖北岸选择不同草地类型的7个试验样地,采集各样地主要优势种和伴生种植物,进行矿物元素含量分析测试,结果表明:青海湖北岸退化草地中矿物元素具有蓄积分异性,是草地矿物元素对于草地演替的响应,既是草地退化的结果,也是草地退化的原因之一。The aims of this study were to get to know the characteristics of mineral elements in degraded and enclosed grassland plants on the north bank of Qinghai Lake. We choose the seven grasslands on north bank of Qinghai Lake for test sample, through comparative analysis of mineral elements of the grassland,we finally find the mineral elements has an accumulating differentiation behavior in degraded grassland plants. This is the response of mineral elements to the succession of grassland ecosystem. This is an result and reason for the grassland degraded.

关 键 词：草地矿物元素 蓄积分异 草地演替 青海湖北岸 

分 类 号：S812[农业科学—草业科学]