Research Article
Multivariate Analysis of Confined Groundwater Hydrochemistry of a Long-Exploited Sedimentary Basin in Northwest China
Table 2
Correlation matrix of the 13 physicochemical water parameters. The values are the correlation coefficients (
).
| | pH | TH | TDS | Ca2+ | Mg2+ | K+ | Na+ | | | | | | |
| pH | 1 | | | | | | | | | | | | | TH | −0.277 | 1 | | | | | | | | | | | | TDS | −0.484 | 0.674 | 1 | | | | | | | | | | | Ca2+ | −0.372 | 0.825 | 0.706 | 1 | | | | | | | | | | Mg2+ | 0.058 | 0.555 | 0.153 | −0.012 | 1 | | | | | | | | | K+ | −0.094 | 0.581 | 0.205 | 0.359 | 0.500 | 1 | | | | | | | | Na+ | −0.459 | 0.259 | 0.883 | 0.461 | −0.222 | −0.119 | 1 | | | | | | | | −0.463 | 0.438 | 0.873 | 0.622 | −0.141 | 0.113 | 0.885 | 1 | | | | | | | −0.474 | 0.562 | 0.895 | 0.519 | 0.231 | 0.207 | 0.783 | 0.662 | 1 | | | | | | −0.222 | 0.756 | 0.476 | 0.482 | 0.629 | 0.29 | 0.141 | 0.081 | 0.406 | 1 | | | | | −0.184 | −0.093 | −0.196 | −0.087 | −0.036 | 0.273 | −0.202 | −0.128 | −0.163 | −0.148 | 1 | | | | −0.261 | 0.063 | 0.26 | 0.063 | 0.019 | −0.041 | 0.286 | 0.391 | 0.244 | −0.187 | 0.012 | 1 | | | −0.114 | −0.399 | 0.188 | −0.093 | 0.57 | −0.38 | 0.509 | 0.236 | 0.237 | −0.257 | −0.208 | −0.013 | 1 |
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Correlation = significant at the level 0.01 (2-tailed). Correlation = significant at the level 0.05 (2-tailed).
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