Skip to main content

Table 8 The Factor loadings values and explained variance of water quality in two seasons (positive and negative strong correlations are marked bold)

From: Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques

Dry season Wet season
Parameters PC1 PC 2 PC3 PC 4 Parameters PC1 PC2 PC3 PC 4
TP 0.065 − 0.69 0.48 0.10 TP 0.92 − 0.18 0.21 0.23
PO4 0.93 − 0.16 0.13 − 0.03 PO4 0.15 − 0.18 0.85 0.37
NH3 0.907 − 0.04 0.27 − 0.11 NH3 0.85 − 0.38 0.32 0.05
NO2 0.966 0.10 − 0.07 − 0.09 NO2 0.88 0.09 − 0.33 − 0.15
NO3 0.963 − 0.04 − 0.21 0.10 NO3 0.90 − 0.005 0.03 − 0.34
TIN 0.98 − 0.01 − 0.17 0.06 TIN 0.94 0.03 − 0.14 − 0.235
TN − 0.097 − 0.32 0.18 0.88 TN 0.56 0.68 − 0.28 0.20
SiO2 0.791 − 0.52 − 0.29 − 0.05 SiO2 0.11 − 0.10 − 0.62 0.49
Temp 0.283 0.79 0.43 − 0.09 Temp − 0.11 0.19 0.63 − 0.62
DO 0.349 − 0.42 0.76 − 0.09 DO 0.08 0.55 0.64 0.40
PH − 0.373 0.76 0.49 0.08 pH − 0.85 0.13 0.01 − 0.17
EC 0.963 0.16 − 0.02 0.09 EC − 0.25 0.96 − 0.07 0.03
TDS 0.955 0.17 − 0.05 0.08 TDS − 0.26 0.95 − 0.087 0.03
SD 0.035 0.66 − 0.34 0.32 SD 0.61 0.58 − 0.21 − 0.16
TA 0.801 0.54 0.20 0.11 TA 0.44 0.63 0.43 0.03
Eigen value 7.97 3.05 1.66 0.96 Eigen value 5.84 3.60 2.52 1.26
% variance 53.133 20.34 11.09 6.41 % variance 38.93 24.02 16.76 8.39
% Cumulative variance 53.133 73.47 84.56 90.97 % cumulative variance 38.93 62.95 79.71 88.10