Dynamical Models of Interactions between Herds Forage and Water Resources in Sahelian Region

Table 1

Parameter values for transhumance in System (1).

Parameters	Description	Estimated value/range	Reference
𝑟01	Intrinsic production coefficient	10–20 kgDM/ha	[9]
𝑟02	Intrinsic production without precipitations	5–10 kgDM/ha	[9]
𝑝	Precipitations	500–600 mm/yr	[9]
𝑟1	Intrinsic disappearance of forage resources	90–120 kgDM/ha	[9]
𝑒	Forage biomass conversion rate	0.015 per day	[10]
𝑎	Herd’s satiety rate	0.01/ha	[10]
𝐾	Maximal capacity of forage production	500–600 kgDM/ha	[10]
𝑞	Utilization rate of forage resources	0.4 per day	[9]
𝛾	Removal rate in the herd	1.0 per day	[10]