Unsustainable development has often threatened watershed ecology in many parts of the world, and population growth has played a major role in this process. Our study consists of the development of a watershed management plan. The degradation of environments by bushfire, timber exploitation, and firewood harvesting dew soil and pollutes spring water, in addition, there are also negative impacts on the physicochemical property of the soil. This research aims to put in place a watershed management plan to restore the soil and the soil pit against erosion. The development also allows for the protection of water resources and the pollution generated by this degradation. The study specifies the physical characteristics of the watershed: altitude, slope, and constant of Graveluis. We also examine the physicochemical properties of the soil: structure, texture, and pH. After the study of the soil, we also determined the measure of the flow of the source, the organoleptic analysis, and also the physicochemical and bacteriological analysis. The results of this work once made available to the authorities of the basic data could be exploited in the framework of the improvement of the quality of water intended for human consumption. To fight against water pollution, the easiest measure to apply is a large awareness campaign.

Climate change (CC) is having negative impacts on agricultural production at global, national, and local scales. Climate risks to agriculture, livestock, and fisheries are expected to increase in the coming decades, particularly in low-income countries with low adaptive capacity such as those in Africa and Madagascar. In most African countries, agriculture must undergo a profound transformation to address the many challenges of CC, food insecurity, malnutrition, poverty, and environmental degradation. This "Climate Smart Agriculture (CSA)" or e-agriculture is an integrated approach to address the interrelated challenges of food security and climate change in order to achieve the objectives of adaptation or mitigation of climate change risks. Support for building resilience, support for community-based environmental projects, and promotion of climate-smart agricultural practices are among the approaches of the AIC. These climate-smart agricultural practices need to be aligned with and supported by national policy and a legal and regulatory framework. Policy and legislation can either slow down or accelerate the adoption of climate-smart agriculture. Promoting innovation requires effective partnerships with the government, the private sector, and universities. The case studies clearly show that there is a need for simultaneous action at the local and international levels on multiple challenges related to climate change. Climate change (CC) has negative impacts on agricultural production globally, nationally, and locally. Climate risks to agriculture, livestock, and fisheries are expected to increase over the coming decades.

The dynamization of Tourism in the Haute Matsiatra Region (Isalo, Andringitra, Ranomafana) is considered favorable to the promotion of Tourism and important for the sustainable development of the rural areas concerned. They are exploited by local visitors. However, currently, there is an inspiration for new openings and new and more original horizons throughout Madagascar. The idea of launching the "dynamization of tourism", using Big Data and Business Intelligence, is somewhat conceived as an exclusive speech to incite tourists to discover new destinations even more authentic than many others. However, we would like to propose that the aim of the dynamization of tourism is to make the assets dynamic, to valorize and capitalize on the natural wealth of the region for the purpose of tourism, and to develop the areas in a sustainable way.