Evolution of Hydrological Drought in Human Disturbed Areas: A Case Study in the Laohahe Catchment, Northern China

Table 1

Physical meanings and ranges of the sensitive parameters in the VIC model.

Parameter	Physical meaning	Unit	Range
	Infiltration curve parameter	N/A	0-1
	Thickness of top thin soil moisture layer	m	0.05–0.1
	Thickness of middle soil moisture layer	m	0–2
	Thickness of lower soil moisture layer	m	0–2
	Fraction of where nonlinear baseflow begins	Fraction	0-1
	Maximum velocity of baseflow	mm/day	0–30
	Fraction of maximum soil moisture where nonlinear baseflow occurs	Fraction	0-1