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

Table 6

Included soil and terrain indicators in the minimum dataset from representative indicators.

Group	Indicator	Vector norm	Coefficient of determination		Standard normal transformation			Indicator value	Included
			NDVI	Elev	Norm	NDVI	Elev
1	Sand	2.57	0.18	0.14	1.00	0.80	1.00	2.80	No
1	Silt	1.91	0.10	0.10	0.74	0.43	0.74	1.91	No
1	Clay	2.47	0.17	0.11	0.96	0.74	0.96	2.66	No
1	pH	2.01	0.02	0.01	0.78	0.11	0.78	1.67	No
1	FC	2.52	0.20	0.14	0.98	0.90	0.98	2.86	No
1	AWHC	2.54	0.23	0.17	0.99	1.00	0.99	2.97	Yes
1	BD	2.30	0.02	0.02	0.89	0.09	0.89	1.87	No
1	PD	2.48	0.09	0.07	0.96	0.39	0.96	2.32	No
2	OM	1.36	0.09	0.02	0.53	0.38	0.53	1.43	Yes
3	Slp	1.09	0.00	0.01	0.42	0.02	0.42	0.86	Yes
3	Rlf	1.06	0.00	0.01	0.41	0.01	0.41	0.83	No
4	CEC	1.10	0.00	0.01	0.43	0.02	0.43	0.87	Yes
4	CaCO3	1.02	0.00	0.00	0.40	0.01	0.40	0.80	No
5	EC	0.95	0.01	0.00	0.37	0.03	0.37	0.77	Yes
5	ESP	0.86	0.01	0.06	0.33	0.02	0.33	0.69	No