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

Table 9

The linear relationships between indicator datasets with different scoring functions.

SQI	Scoring method	SQI model	Relationship	R^2	SQI	Scoring method	SQI model	Relationship	R^2
TDS-MDS	LLSF	SQI-A	0.4586x + 0.3132	0.54	TDS-EDS	LLSF	SQI-A	0.4634x + 0.2378	0.30
		SQI-W	0.895x + 0.0108	0.90			SQI-W	1.0574x − 0.1869	0.64
		SQI-N	0.5027x + 0.2111	0.51			SQI-N	0.4161x + 0.1865	0.23
	HLSF	SQI-A	0.3592x + 0.2888	0.46		HLSF	SQI-A	0.4433x + 0.2045	0.43
		SQI-W	0.61x + 0.0661	0.62			SQI-W	0.6876x − 0.0129	0.50
		SQI-N	0.2621x + 0.1909	0.49			SQI-N	0.5026x + 0.1393	0.42
	GLSF	SQI-A	0.3725x + 0.2409	0.42		GLSF	SQI-A	0.4703x + 0.15	0.39
		SQI-W	0.4989x + 0.0665	0.51			SQI-W	0.5191x + 0.0143	0.31
		SQI-N	0.4239x + 0.161	0.41			SQI-N	0.5284x + 0.0997	0.39
	SNLSF	SQI-A	0.3487x + 0.321	0.42		SNLSF	SQI-A	0.3989x + 0.2996	0.50
		SQI-W	0.4977x + 0.1489	0.48			SQI-W	0.4134x + 0.1926	0.32
		SQI-N	0.3606x + 0.2319	0.39			SQI-N	0.4391x + 0.2081	0.50
	GNLSF	SQI-A	0.3088x + 0.2933	0.24		GNLSF	SQI-A	0.3612x + 0.2166	0.44
		SQI-W	0.3884x + 0.151	0.39			SQI-W	0.1992x + 0.185	0.11
		SQI-N	0.3341x + 0.1981	0.24			SQI-N	0.3517x + 0.1559	0.42