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CONCLUSION
The dangers associated with natural disasters could gradually intensify due to the increase in the worldpopulation, mainly in rural areas, which occurs in the extension of housing in forest areas. Also, the increaseduse of slash-and-burn crops for the expansion of agricultural land and deforestation for fuelwood onlyexacerbates climate change. This study made it possible to differentiate the different categories of vanillaproducers living in the Northeast region of Madagascar, more precisely the SAVA region and the categoriesof annual tropical cyclones in the region.
This research revealed, on the one hand, the economic and social extent of political crises on the population;and on the other hand, the impact of tropical cyclones and climatic factors on the production of vanilla inMadagascar. An analysis of three axes was undertaken during this research: a historical analysis, the riskclassification, and statistical analysis. The three analyzes revealed that the annual volume of vanillaproduction in Madagascar depends mainly on climatic conditions. The lack of preventive measures tomitigate these natural disasters, the management of political crises, and the details concerning the costanalysis of the social and economic impacts caused by climate change are still very limited and remain agreat challenge for Madagascar. However, the improvement of prevention actions would not only stabilizeproduction through all agricultural activities in Madagascar but also ensure a favorable life for farmers whodepend on this cash crop. The data collected during this research on tropical cyclones and climatic factors inMadagascar from 2000 to 2018 could allow future research on the mitigation of these risks on agricultureand could extend to the integration of ICT for prevention risks and preparing people potentially vulnerable tonatural disasters. It would allow an annual assessment of the affected population before and after a disaster.Finally, it would help locate missing persons after the occurrence of one or more natural disasters with theuse of cellular mobile phones.
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