青岛地区土壤重金属地球化学基线的统计分析

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1、山东理工大学硕士学位论文第一章绪论目录摘要....................................................................................................................................IAbstract.............................................................................................

2、....................................II第一章绪论.......................................................................................................................11.1研究背景及意义..................................................................................

3、..................11.2国内外研究进展及现状........................................................................................21.3研究内容................................................................................................................3第二章预备知识.......

4、..........................................................................................................52.1青岛地区概况.........................................................................................................52.1.1基本情况概述......................

5、.......................................................................52.1.2取样及样品分析处理.................................................................................62.2地球化学基线的含义...........................................................................

6、.................72.3线性回归模型........................................................................................................8第三章青岛地区土壤重金属地球化学基线的确定.......................................................103.1用平均值和中位数确定地球化学基线..........................

7、.....................................103.1.1地球化学基线结果...................................................................................103.1.2正态性检验...............................................................................................113.2用普通最小二乘回

8、归法确定地球化学基线......................................................133.2.1回归自变量——参考元素的选择............................................................133.2.2普通最小二乘回归结果.....................................................