Le développement agricole du bassin supérieur de la Lokoho, à Madagascar

TL;DRAbstract

Agricultural Development in the Upper Basin of Lokoho, Madagascar. The upper basin of Lokoho is a bowl in the Northeast of Madagascar, situated at an altitude of 480 meters, the bottom of which was for a long time unexploited. Its agricultural development began at the beginning of the Twentieth Century with the introduction of coffee and vanilla crops. This region remained totally isolated untill 1947, the year when an air service between Andapa and Tananarive was inaugurated. This service favored the development of the two income crops which, sold at favorable prices, were able to be exported profitably by plane. The very demographic growth, due essentially to immigration, was responsible for the development of rice growing, for local food purposes. Beginning in 1966, a hydraulic installation enabled the area to produce enough rice for export to the neighbouring regions, thanks to the linking road of Andapa-Sambava, built in 1970. At present, the Andapa region grows mainly rice, but r

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