宁夏南部山区葫芦河流域土壤地球化学特征及影响因素分析

李永春, 苏日力格, 周文辉, 邰苏日嘎拉, 陈国栋, 王永亮, 高琪, 张祥, 张栋

Geochemical characteristics and influencing factors of soil in Hulu River Basin in the southern mountainous region of Ningxia

LI Yong-Chun, SU Ri-Li-Ge, ZHOU Wen-Hui, TAI Su-Ri-Ga-La, CHEN Guo-Dong, WANG Yong-Liang, GAO Qi, ZHANG Xiang, ZHANG Dong

表4 因子分析正交旋转因子载荷矩阵和特征值与累积方差贡献率

Table 4 Orthogonal rotation factor load matrix,eigenvalue and cumulative variance contribution rate of factor analysis

指标 F1 F2 F3 F4 F5 F6 F7 F8 F9 Fe2O3 0.84 V 0.83 Ni 0.82 Cr 0.82 Mn 0.79 Zn 0.69 Al2O3 0.50 Co 0.78 Pb 0.74 Cu 0.73 Cd 0.67 N 0.87 Corg. 0.83 pH (-0.62) As F 0.75 B 0.68 Ge 0.67 SiO2 0.86 CaO (-0.71) Mo 0.79 Se 0.70 I Na2O 0.80 K2O 0.80 Hg 0.71 P 0.66 Cl S 0.88 MgO 0.51 特征值 4.70 2.85 2.70 2.36 2.06 1.92 1.69 1.62 1.36 方差/% 15.68 9.49 8.99 7.87 6.87 6.38 5.63 5.40 4.54 累积方差/% 15.68 25.17 34.15 42.02 48.89 55.27 60.90 66.30 70.83