浅山区典型小流域土壤重金属影响因素及来源分析

史敬涛, 刘俊建, 张军超, 王江玉龙, 姜禹戈, 王末, 李横飞, 杨文号, 颜翔锦

Analysis of soil heavy metal influencing factors and sources in typical small watersheds in shallow mountainous area

SHI Jing-Tao, LIU Jun-Jian, ZHANG Jun-Chao, WANG Jiang-Yu-Long, JIANG Yu-Ge, WANG Mo, LI Heng-Fei, YANG Wen-Hao, YAN Xiang-Jin

表3 表层土壤样品(无底色)和深层土壤样品(底色为灰色)中8种重金属元素与氧化物的Pearson相关系数

Table 3 Pearson correlation coefficients of eight heavy metals and oxides in surface soil samples (no base color) and deep soil samples (gray base color)

指标	SiO₂	CaO	MgO	Al₂O₃	Fe₂O₃	K₂O	Na₂O	Cr	Ni	Cu	Zn	Cd	Pb	Hg	As
SiO₂	1	-0.941^**	-0.958^**	0.629^**	0.391	0.565^**	0.316	0.321	0.116	0.297	0.395	0.033	0.693^**	0.163	0.218
CaO	-0.969^**	1	0.940^**	-0.837^**	-0.652^**	-0.757^**	-0.479^*	-0.516^*	-0.334	-0.501^*	-0.604^**	-0.146	-0.822^**	-0.213	-0.305
MgO	-0.688^**	0.573^**	1	-0.729^**	-0.494^*	-0.686^**	-0.480^*	-0.363	-0.153	-0.376	-0.456^*	-0.066	-0.750^**	-0.194	-0.239
Al₂O₃	0.879^**	-0.929^**	-0.581^**	1	0.895^**	0.931^**	0.723^**	0.707^**	0.573^**	0.702^**	0.799^**	0.270	0.862^**	0.234	0.391
Fe₂O₃	0.792^**	-0.856^**	-0.540^**	0.962^**	1	0.866^**	0.652^**	0.777^**	0.710^**	0.822^**	0.869^**	0.409	0.767^**	0.331	0.474^*
K₂O	0.692^**	-0.706^**	-0.480^*	0.819^**	0.827^**	1	0.763^**	0.564^**	0.406	0.573^**	0.721^**	0.105	0.740^**	0.100	0.185
Na₂O	0.743^**	-0.717^**	-0.518^*	0.650^**	0.539^**	0.455^*	1	0.316	0.183	0.378	0.468^*	0.161	0.425^*	0.256	0.322
Cr	0.716^**	-0.774^**	-0.483^*	0.900^**	0.932^**	0.773^**	0.411	1	0.949^**	0.907^**	0.771^**	0.516^*	0.785^**	0.488^*	0.709^**
Ni	0.491^*	-0.529^**	-0.307	0.703^**	0.722^**	0.617^**	0.166	0.878^**	1	0.892^**	0.730^**	0.588^**	0.686^**	0.451^*	0.728^**
Cu	0.476^*	-0.533^**	-0.187	0.700^**	0.713^**	0.659^**	0.147	0.787^**	0.871^**	1	0.765^**	0.698^**	0.772^**	0.558^**	0.704^**
Zn	0.561^**	-0.582^**	-0.329	0.670^**	0.676^**	0.611^**	0.170	0.817^**	0.928^**	0.856^**	1	0.516^*	0.843^**	0.370	0.468^*
Cd	-0.178	0.171	0.320	-0.159	-0.227	-0.049	-0.352	-0.066	0.311	0.394	0.434^*	1	0.470^*	0.790^**	0.565^**
Pb	0.662^**	-0.672^**	-0.462^*	0.681^**	0.691^**	0.578^**	0.303	0.698^**	0.626^**	0.614^**	0.750^**	0.070	1	0.371	0.486^*
Hg	-0.402	0.402	0.152	-0.356	-0.366	-0.326	-0.180	-0.326	-0.263	-0.230	-0.303	0.061	-0.254	1	0.598^**
As	-0.291	0.305	0.100	-0.213	-0.219	-0.208	-0.271	-0.047	0.290	0.234	0.323	0.663^**	0.115	0.332	1