The importance of different forest management systems for people’s dietary quality in Tanzania
2024
Olesen, R S | Reiner, F | den Braber, B | Hall, C | Kilawe, C J | Kinabo, J | Msuya, J | Rasmussen, L V | European Commission (Horizon 2020) | University of Copenhagen | University of Copenhagen | University of Copenhagen | Biological and Environmental Sciences | Sokoine University of Agriculture | Sokoine University of Agriculture | Sokoine University of Agriculture | University of Copenhagen | 0000-0003-1463-1906 | 0000-0003-4864-7754
Context A large body of literature has shown that forests provide nutritious foods in many low- and middle-income countries. Yet, there is limited evidence on the contributions from different types of forest and tree systems. Objectives Here, we focus on individual trees and smaller forest patches outside established forest reserves as well as different forest management systems. Methods We do so by combining novel high-resolution data on tree cover with 24-h dietary recall surveys from 465 women in Tanzania. Results We show that people with more unclassified tree cover (i.e., individual trees and small forest patches) in their nearby surroundings have more adequate protein, iron, zinc, and vitamin A intakes. We also find that having a nearby forest under Participatory Forest Management (PFM) system is associated with higher adequacy levels of energy, iron, zinc and vitamin A. By contrast, tree cover within other types of forest (e.g., Government Forest Reserves and Government Forest Plantations) is not positively associated with people’s dietary quality. Conclusions Our key finding is that having individual trees, smaller forest patches and/or forest under PFM in close proximity is more beneficial for people’s diets than other types of established forests. Our results highlight the nutritional importance of trees outside established forests and question the often-assumed benefits of forests if these are made inaccessible by social barriers (e.g., legislation). Finally, our results emphasize the need to distinguish between different forest management systems when studying forest-diet linkages.
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