Evaluation of Soil Quality in Arid Western Fringes of the Nile Delta for Sustainable Agriculture

Table 4

Eigenvalues, proportions and cumulative variance explained by factor analysis using a correlation matrix of standardized soil and terrain indicator data.

Factor	Eigenvalue	Difference	Proportion	Cumulative
1	6.72	6.55	40.94	40.94
2	2.09	1.65	10.34	51.28
3	1.52	1.53	9.58	60.86
4	1.28	1.45	9.08	69.94
5	1.00	1.41	8.82	78.76