An Improved Prediction Method of Soil-Water Characteristic Curve by Geometrical Derivation and Empirical Equation

Table 3

The results of fitting to equation (13) with datasets of different situations.

Soil type	Points situation
Sand [38]	24 points	5.037	7.421	0.551
	13 points	4.885	6.146	0.586	0.00508
	6 points	4.982	6.612	0.590	0.01032
	Before	5.025	11.552	0.417	0.04922
	Including	5.072	10.799	0.452	0.02913
Silt [38]	20 points	10394.203	0.480	3.354
	11 points	8089.230	0.508	3.348	0.03059
	6 points	9028.341	0.485	3.393	0.02031
	Before	2095.411	0.547	1.880	0.02828
	Including	7254.044	0.525	2.223	0.01836
Clay [53]	20 points	1097.902	1.756	0.740
	11 points	1120.315	1.767	0.750	0.00575
	6 points	1149.266	1.747	0.775	0.02988
	Before	878.877	2.653	0.493	0.20576
	Including	903.982	2.048	0.629	0.16672