**Sampling design:**

The communes and the villages for the Participatory Rural Appraisal (PRA) were chosen following the decisional framework presented in Fig. 2: For each forest use type, two communes with territorial dominance of the concerned were chosen. Only those villages were chosen where the forest area is managed solely by households (Criterion 2.1) and belong exclusively to the forest function of interest (Criterion 2.2). Then, the two villages with the largest forest area were chosen for the Participatory Rural Appraisal (PRA) (Criterion 2.3).

In each village, 15 participants were chosen for the PRA method, including five people representing the village organizations and 10 households owning forest. The five representative villagers included the head of the village as well as representatives of the old soldier union, the farmer association, the women association and the youth union. The 10 households per village were chosen by respecting equity in gender, age, well-being and educational level.
