From the outset, the book highlights a key issue : conventional agricultural systems, largely based on specialisation and intensification, are reaching their sustainability limits. Declining biodiversity, loss of soil organic matter, and greater exposure to climatic stress all point towards the need for more integrated approaches. In this regard, temperate agroforestry is presented not as a marginal alternative, but as a promising intermediate system that reconciles agricultural production with the ecological functions provided by trees.

Right from the beginning, the book identifies a crucial problem: traditional farming methods that focus heavily on specialization and intensification are approaching the boundaries of what can be sustained long-term. The reduction in biodiversity, depletion of organic matter in soil, and increased vulnerability to climate-related challenges all indicate that we need farming approaches that are more holistic. Within this context, temperate agroforestry emerges not as a fringe option, but rather as an encouraging middle-ground system that balances food production with the environmental benefits that trees provide.