| A. Hong-Wa, J. Randrianarison - ETUDE DE LA VARIABILITE DES PRECIPITATIONS DANS L EXTREME NORD DE MA |
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Geographia Technica, No. 2/2009, pp. 23 - 30 ETUDE DE LA VARIABILITE DES PRECIPITATIONS DANS L’EXTREME NORD DE MADAGASCAR ET ANALYSE DE L’ADAPTATION DES PRATIQUES CULTURALES SUR LE POURTOUR DE LA MONTAGNE D’AMBREA. Hong-Wa , J. RandrianarisonABSTRACT: STUDY OF THE RAINFALL VARIABILITY IN THE NORTH OF MADAGASCAR. ANALYSIS OF THE AGRICULTURAL ADAPTATION AROUND THE AMBRE MOUNTAIN The analysis of rainfall trends in the region of the Montagne d'Ambre is done on a station with long time series. The study of precipitation shows a predominance of dry years. The frequency, intensity, persistence and speed of return of these phenomena are a major aspect of climate variability of extreme northern Madagascar. These climatic irregularities disrupt agricultural activities in rural areas and affect the cultivated area but also agricultural production. But given the aggressiveness and persistence of dry periods of the late 1990s, there is an adaptation of peasant farming practices around the Montagne d'Ambre. This is based on strategies for land development that emphasize less water demanding practices. This new form of development began to spread in the region. Mots Clés:Montagne d’Ambre, Variabilité climatique, sècheresse, agriculture, adaptation |


