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Table 1 Bio-geographical and socioeconomic characteristics of the study areas

From: Comparative analysis of diversity and utilization of edible plants in arid and semi-arid areas in Benin

  Semi-arid zone (Bassila) Arid zone (Boukoumbé)
Biophysical gradient Sudano-Guinean (7°30-9°30 N) region Sudanian region (9°30-12° N) region
Annual rainfall 1100 – 1300 mm 900 – 1100 mm
Active vegetation period 200 days 145 days
Relative Humidity
 Min 30 – 70% <30%
 Max <80% 45 – 75%
Temperature 25 to 29°C 24 to 31°C
Forest cover 50% of the total area of the municipality of Bassila is covered by forest reserves [Monts Kouffè Forest Reserve (201 000 ha), Pénéssoulou Forest Reserve (5 470 ha), Bassila Forest Reserve (3 320 ha) and Wari Maro Forest Reserve (1/3 of 107 500 ha)] Not available
Farming systems Cereal- (maize and sorghum) and Yam-based Cereal-based (sorghum and pearl millet)
Socioeconomic gradient   
Food insecurity Moderate food insecurity Severe food insecurity
Poverty incidence Low High
Less than 40% of poor household 72% of poor household
20% of population living in extreme poverty 51% of population living in extreme poverty
Number of villages surveyed in each municipality 04 08
Sociolinguistic groups surveyed (number of villages) in each municipality Ditamari (01), M’Bermé (01), Nagot (01), Lokpa (01) Ditamari (06), M’Bermé (02)
Number of respondents 90 90
  1. Data assembled from Adomou [32], Akoègninou et al.[33], Bongi et al.[38], MAEP [39].