Modelling non-wood forest products in Europe A review

Non-wood forest products (NWFP) like cork, edible mushrooms, pine nuts, acorns, resins, medicinal plants, and floral greens, among others, provide important recreational and commercial activities in the rural forested areas of the world, their production being in certain regions more profitable than traditional timber production. Despite the importance of non-wood forest products and services, forest management and planning methods and models in Europe have been traditionally wood production oriented, leading to a lack of tools that could help foresters to manage for optimizing these products. In the present work we'll discuss the main factors and challenges limiting the development of classical empirical models for NWFP, and we will review the existing models for the main NWFP in Europe cork, pine nuts, berries, mushrooms and resins.