Exploring the potential of edible forest gardens: experiences from a participatory action research project in Sweden Agroforest Syst https://doi.org/10.1007/s10457-018-0208-8
Johanna Björklund . Karin Eksvärd . Christina Schaffer
This research project explores the feasibility of growing a diversity of crops in a planned, forested area. The goals are lofty:
“The desired functions from the systems were agreed to be the provision of nutritious and tasty food products, nitrogen fixation, nutrient accumulation, the provision of quality food for pollinators, carbon sequestration, contribution to a benign microclimate and the provision of timber. The design and species composition were planned to optimize these functions”
This research reminds me of the permaculture gardens that have risen in popularity across the U.S. Whenever you have a multi-use approach to agriculture, there are a lot of tradeoffs especially in maximizing yield. Having layers of berry bushes growing beneath a nut tree, for instance, reduces light and could adversely impact yield and pollinator activity because the area becomes too shady. There is a desire for timber, but cut trees down and the entire moisture, light, etc. regimes of this ecosystem are changed. One of the plants included in this study was lambs quarter, Chenopodium album, an annual that would most definitely die out after a while because of shading and competition from trees as well as lack of disturbance of the soils. It certainly is a fun exercise and yields of any one crop will suffer, but in my back yard? Why not?