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本文的目的在于探讨吐鲁番盆地土壤中稀土元素之间的相互关系。为了能用一数学指标反映变量同的相似程度,文中给出了稀土元素之间的相关系数矩阵,并由此对稀土元素做了R型群分析,画出了枝状图。 1.样品采集和分析方法 20个表层土壤样品采自吐鲁番盆地(包括吐鲁番、鄯善、托克逊三县)。样品全部为发育在沉积物上的土壤,包括:石膏棕漠土、棕漠土、绿洲黄土、草甸土、绿洲潮土、盐土以及砂土,共计七种土壤。它们基本上代表了吐鲁番盆地的主要土壤类型。
The purpose of this paper is to explore the relationship between rare earth elements in the Turpan Basin. In order to reflect the similar degree of variables with a mathematical index, a matrix of correlation coefficient between rare earth elements is given in this paper. R-type group analysis of rare earth elements is made and a dendrite is drawn. 1. Sample Collection and Analysis Methods Twenty surface soil samples were collected from the Turpan Basin (including Turpan, Shanshan and Toksun counties). The samples are all soils that have developed on sediments, including: gypsum brown desert soil, brown desert soil, oasis loess, meadow soil, oasis fluvial soil, saline soil and sand, a total of seven kinds of soil. They basically represent the main soil types in the Turpan Basin.