江苏省里下河地区富硒土壤元素地球化学特征及其成因机制

廖启林, 黄顺生, 许伟伟, 崔晓丹, 金洋, 刘玲, 汪媛媛, 李文博, 周强

Elemental geochemical characteristics and genetic mechanisms of Se-rich soils in the Lixiahe area in Jiangsu Province

LIAO Qi-Lin, HUANG Shun-Sheng, XU Wei-Wei, CUI Xiao-Dan, JIN Yang, LIU Ling, WANG Yuan-Yuan, LI Wen-Bo, ZHOU Qiang

表3 里下河地区富硒土壤元素旋转成分矩阵

Table 3 Rotated component matrix of elements distribution in Se-rich soil from the Lixiahe area

指标 PC1 PC2 PC3 PC4 PC5 PC6 Se 0.506 0.621 0.251 -0.153 -0.238 -0.126 OM 0.142 0.871 0.208 -0.249 -0.113 0.009 pH -0.080 -0.214 -0.193 0.862 0.025 -0.002 CEC 0.414 0.758 0.149 -0.067 -0.091 -0.152 N 0.100 0.874 0.175 -0.205 -0.097 0.058 P -0.464 0.464 0.010 0.003 0.082 0.524 K 0.947 0.027 0.019 -0.150 -0.013 -0.003 Ca -0.355 -0.077 -0.152 0.774 -0.079 0.115 Mg 0.826 -0.061 -0.049 0.364 -0.025 0.105 Fe 0.960 0.048 0.154 -0.097 0.069 -0.025 Mn 0.389 -0.106 0.226 0.520 0.365 0.177 Mo 0.164 0.141 0.216 -0.166 0.094 0.541 B -0.150 -0.111 0.049 0.088 0.840 -0.064 F 0.575 0.129 0.003 -0.239 0.620 0.000 Cl -0.245 -0.136 -0.145 0.050 0.238 0.648 Cd 0.186 0.598 0.302 0.050 -0.026 0.424 As -0.058 -0.171 0.723 -0.213 -0.018 0.248 Hg -0.413 0.182 0.559 0.032 0.137 -0.185 Sb 0.267 0.143 0.685 -0.170 0.123 0.042 Cu 0.778 0.311 0.244 -0.071 -0.009 0.104 Pb 0.392 0.135 0.763 -0.163 -0.166 -0.049 Zn 0.354 0.298 0.380 -0.024 0.043 0.493 Cr 0.730 0.105 0.230 -0.048 0.100 -0.228 Ni 0.951 0.096 0.152 -0.096 -0.014 -0.094 Co 0.959 0.032 0.082 -0.078 0.092 -0.032 V 0.837 -0.016 0.259 -0.068 -0.157 -0.068 特征值 9.042 3.499 2.178 2.135 1.502 1.290 方差贡献率/% 34.775 13.459 8.377 8.213 5.776 4.960 累积方差贡献率/% 34.775 48.235 56.611 64.824 70.600 75.560