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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 8.515 44.817 44.817
2 5.509 28.997 73.814
3 3.375 17.761 91.575
指标 PC1 PC2 PC3
Cd 0.983 −0.128
Pb 0.967 −0.221
Cr 0.965 0.206
K 0.932 0.272
Fe 0.860 −0.478
Zn 0.825 −0.271 −0.377
137Cs 0.815 0.515 −0.186
Ni 0.779 −0.534 −0.112
TP −0.451 0.168 0.238
Ca 0.98 0.151
Mg 0.339 0.928 0.125
Ba 0.315 −0.904
Sr −0.236 0.832 0.481
Co 0.568 −0.798
Li 0.510 0.607 0.541
χ lf 0.107 0.97
χ hf 0.155 0.123 0.956
χ fd −0.330 0.929
χ fd% −0.390 0.167 0.815
Table 2 Results of principal component analysis of PCA+DFA
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