Research Article
Dynamical Models of Interactions between Herds Forage and Water Resources in Sahelian Region
Table 2
Parameter values for transhumance in System (
2).
| Parameters | Description | Estimated value/range | Reference |
| | Intrinsic production of forage | 10–20 kgDM/ha | [9] | | Intrinsic production of water | 700–800 kgDM/ha | [9] | | Forage production without precipitations | 5–10 kgDM/ha | [9] | | Water production without precipitations | 100–200 mm/yr | [9] | | Precipitations | 500–600 mm/yr | [9] | | Intrinsic disappearance of forage resources | 90–120 kgDM/ha | [9] | | Intrinsic disappearance of water resources | 150–250 mm/yr | [9] | | Forage biomass conversion rate | 0.015 per day | [10] | | Water biomass conversion rate | 0.0154 per day | [10] | | Herd’s satiety rate from forage | 0.03/ha | [10] | | Herd’s satiety rate from water | 0.02/ha | [10] | | Maximal capacity of forage production | 7000–9000 kgDM/ha | [10] | | Maximal capacity of water production | 900 mm/yr | [10] | | Forage utilization rate | 0.4 per day | [9] | | Water utilization rate | 0.6 per day | [9] | | Herd’s removal rate | 1 per day | [10] |
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