Central Zone
The central zone, or the sahelian zone, comprises the area with average annual rainfall of between 350 and 800 millimeters. The minimum rainfall needed for berebere, is 350 millimeters. The western area of the zone is dominated by the Chari and Logone rivers, which flow north from their sources in southern Chad and neighboring countries (see fig. 3). The courses of these rivers, joining at N'Djamena to flow on to Lake Chad, create an ecological subregion. Fishing is important for the peoples along the rivers and along the shores of Lake Chad. Flood recession cropping is practiced along the edges of the riverbeds and lakeshore, areas that have held the most promise for irrigation in the zone. International donor attention focused on this potential beginning in the mid-1960s. Particular attention has been paid to the traditional construction of polders (see Glossary) along the shores of Lake Chad. Land reclaimed by the use of such methods is extremely fertile. Chad's only wheat crop is cultivated in these polders.
In the rest of the sahelian zone, the hardier varieties of millet, along with peanuts and dry beans, are grown. Crop yields are far lower than they are in the south or near rivers and lakes. Farmers take every advantage of seasonal flooding to grow recession crops before the waters dry away, a practice particularly popular around Lake Fitri. The sahelian zone is ideal for pasturage. Herding includes large cattle herds for commercial sale, and goats, sheep, donkeys, and some horses are common in all villages.
Read more about this topic: Agriculture In Chad, Overview
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