In Burundi, several ecosystems have been destroyed in an alarming way and others are very fragmented. The search for fertile land and the resulting cultural clearings have considerably reduced several plant formations, many of which are in an unsustainable situation to reclaim the land. This causes the loss of biodiversity and the ecosystem services that result from it. The loss of biodiversity thus leads to the precariousness of the way of life of populations who no longer have access to sufficient biological resources. The degradation of ecosystems also weakens their ecological roles and is at the origin of the worsening of the harmful effects of climate change. All these consequences combined thus cause interminable conflicts over natural resources, in particular land disputes, which occupy almost all the legal discussions in Burundi. In order to contribute to the preservation of biodiversity in Burundi by raising awareness among the population, a synergy between the Burundian Office for Environmental Protection (OBPE) and the Association for the Restoration and Enrichment of the Environment in Burundi (ASREEBU) was undertaken. The objective of this synergy work is to show how the loss of biodiversity leads to a change in the way of life of populations who no longer have access to sufficient biological resources. It is also a question of showing how to preserve this biodiversity.