| 安徽省宣城市土壤硒地球化学特征及成因分析
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		| 邢润华 | 
		
		| Geochemical characteristics and genesis of selenium in soil in Xuancheng City, Anhui Province
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		| XING Run-Hua | 
	
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		| 表7 不同成土母质表、深层土壤Se 含量回归方程 
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		| Table 7 Regression equation of Se content in surface and deep soil of different parent materials 
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		|    | 母质类型 | 回归方程 | 相关系数 | 样品数 |   | 全区 | y=0.916x+0.210 | 0.434 | 3079 |   | 浅变质岩类风化物母质 | y=1.323x+0.070 | 0.557 | 32 |   | 浅色碎屑类风化物岩母质 | y=1.430x+0.123 | 0.488 | 1228 |   | 红色碎屑岩类风化物母质 | y=0.591x+0.231 | 0.398 | 243 |   | 酸性岩类风化物母质 | y=0.600x+0.189 | 0.385 | 473 |   | 网纹红土母质 | y=0.425x+0.271 | 0.352 | 212 |   | 碳酸盐岩类风化物母质 | y=0.211x+0.529 | 0.226 | 274 |   | 晚更新世黄土母质 | y=0.066x+0.309 | 0.224 | 132 |   | 河流冲积物母质 | y=0.280x+0.263 | 0.145 | 378 |  | 
	
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