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Sediment source in karst depression basin based on multivariate statistical analysis: A case study of Qingmuguan karst trough area in Shapingba, Chongqing
Cai Yunli, Wei Xingping, Chen Shidie, Xiao Chengfang, Li Hui, Li Liangxin
SCIENTIA GEOGRAPHICA SINICA, 2024, 44(9): 1684-1694.   DOI: 10.13249/j.cnki.sgs.20230796

成分 合计 方差的% 累积%
　　注：空白处为变量在因子中的系数小于0.100。
1 8.514 47.302 47.302
2 4.611 25.616 72.917
3 3.369 18.714 91.632
指标 PC1 PC2 PC3
Cd 0.979 −0.145
Cr 0.967 0.188
Pb 0.962 −0.24
K 0.937 0.257
Fe 0.846 −0.505
137Cs 0.831 0.489 −0.196
Zn 0.810 −0.297 −0.390
Ni 0.761 −0.558 −0.122
TP −0.437 0.188 0.251
Ca 0.982 0.156
Ba 0.278 −0.92
Mg 0.373 0.915 0.121
Sr −0.201 0.836 0.484
Co 0.540 −0.818
χ lf 0.119 0.102 0.970
χ hf 0.177 0.117 0.955
χ fd −0.315 0.935
χ fd% −0.369 0.178 0.822
Table 3 Results of principal component analysis of KW-H+PCA
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