Using Reflectance Spectroscopy and Artificial Neural Network to Assess Water Infiltration Rate into the Soil Profile

Table 1

Selected characteristics of the soil samples.

Soil symbols			Mechanical composition (%)			Chemical properties
	Soil series Israel* USA**	Soil classification USDA**	Sand	Silt	Clay	OM; g kg^−1	CaCO3; g kg^−1	ESP; %
Is1(G)	Grumosol	Typic chromoxerets	21.7	25.4	52.9	12.4	114.4	1.0
Is2(S)	Loamy loess	Calcic haploxeralf	37.7	40.6	21.7	9.1	108.2	2.2
Is3(A)	Terra rossa	Lithie ruptie xerochrept	2.6	32.7	64.7	22.6	146	0.5
Is4(E)	Hamra	Typic Rhodoexeralf	79	10	11	8.2	22.2	0.8
Am1	Reiff cm***	Mollic xerofluevents	29	54	17	19.4	66.4	0.72
Am2	Reiff om****	Mollic xerofluevents	27	55	18	23	64.2	1.17
Am3	Capay	Typic xerofluevents	7	62	31	14.4	77.1	0.73

*[16].
**[17].
***cm: soil under conventional management.
****om: soil under organic management.