Table 9: Summary of the eigenvalues, eigenvectors, and PCA scores of the physicochemical parameters in soil of the 3 mangrove zones in Kadolkele mangrove forest.

Eigenvalues
PCEigenvalues%VariationCum. %variation

17.2172.172.1
22.7927.9100.0

Eigenvectors
VariablePC1PC2

Soil moisture (%)−0.367−0.103
Soil organic matter (%)−0.371−0.059
Soil pH0.3250.292
Conductivity (mS/cm)−0.339−0.247
Salinity −0.350−0.204
Penetrability (cm)−0.3010.353
Redox length (cm)0.305−0.345
Sand %0.262−0.426
Silt %0.102−0.576
Clay %0.3500.204

Principal component scores
SampleScore 1Score 2

Rhizophora zone1.825−1.559
Avicennia zone−3.084−0.203
Lumnitzera zone1.2591.761