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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

统计方法 源地
林地 草地 坡耕地
KW-H+DFA 最佳指纹因子组 K、137Cs、Sr、Cr
泥沙来源贡献 25.17% 32.19% 42.64%
PCA+DFA 最佳指纹因子组 Cr、Mg、Sr、Cd
泥沙来源贡献 26.72% 29.14% 44.14%
KW-H+PCA 最佳指纹因子组 Cd、Ca、χ lf
泥沙来源贡献 23.67% 27.36% 48.97%
Table 4 Optimal fingerprint factor groups and sediment source contribution rates for different statistical combinations
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