山东省广饶县土壤重金属来源、分布及生态风险

周旭, 吕建树

Sources, distribution and ecological risk of soil heavy metals in Guangrao county, Shandong province

Xu ZHOU, Jianshu LV

表3 重金属元素因子矩阵

Tab. 3 Factors matrix of heavy metals in soils from Guangrao county

重金属 PC1 PC2 PC3 As 0.839 -0.157 0.087 Cd 0.635 0.109 0.684 Co 0.888 -0.010 -0.322 Cr 0.714 -0.217 0.274 Cu 0.929 0.117 -0.091 Hg -0.018 0.934 0.044 Mn 0.915 -0.155 0.020 Ni 0.948 -0.082 -0.148 Pb 0.750 0.380 -0.087 Zn 0.953 0.072 -0.151 方差贡献率（%） 64.76 11.51 7.17 累计方差贡献率（%） 64.76 76.72 83.44