Agroforestry in Switzerland: research and potential

Agroforestry, the integration of trees into agricultural land, is gaining increasing importance in Switzerland. Since 2020, a research project at ETH Zurich in collaboration with 140 farmers in the cantons of Geneva, Neuchâtel, Vaud, and Jura has been investigating the impacts of agroforestry systems on climate, biodiversity, and economic viability. Particular attention is paid to so-called alley cropping systems, in which trees are planted in rows between arable fields. The aim is to increase carbon sequestration, reduce soil erosion, and assess the economic viability of these systems. The research also includes socioeconomic aspects and is supported by various institutions such as Agroscope, FiBL, and the University of Neuchâtel.

As early as 2011, Agroscope investigated the potential of modern agroforestry systems in Switzerland. The study showed that agroforestry systems can offer both economic and ecological benefits. They increase land productivity, promote biodiversity, and contribute to carbon sequestration. However, challenges were also identified, such as the need for adapted management methods and integration into existing agricultural structures.

Kastanienland.ch: a practical example of agroforestry

The platform kastanienland.ch offers a vivid example of agroforestry in Switzerland. It documents the phenological development of sweet chestnut trees in the Murg region (SG) and provides extensive knowledge about the chestnut, its variety, and potential uses. The sweet chestnut (Castanea sativa) is native to Europe and is valued for its edible fruits and as a source of timber. The platform also offers culinary products such as chestnut flour, beer, and chocolates that promote the commercial use of the trees.

This example demonstrates how agroforestry not only offers ecological benefits but also integrates cultural and economic aspects. The combination of agricultural use and tree cultures creates a diverse system that promotes biodiversity and opens up new sources of income for farmers.