Medium-sized cities are growing rapidly and there is a high level of urbanization. It is therefore crucial to protect and restore public forests. Global warming is exacerbating soil erosion and adversely affecting biodiversity. In addition, the Millennium Environmental Goals require the protection of green spaces.
Magnolias are a vulnerable and important group within the Mexican species. For this reason, the IUCN and other organizations have published the Red Book of Magnolias of the World. In Mexico, there are about 30 taxa of magnolias, 5 of which are in the category of threatened species and it is necessary to recover them.