Dynamique de la biodiversité des parcs agroforestiers de Vipalogo en zone nord soudanienne du Burkina Faso

Abstract

A positive dynamics of agroforestry parklands constitutes an important criterion of rural populations’ resilience. Our study focused on analysis of natural resources management options and woody species potential dynamics, 10 years after agroforestry parkland creation in Vipalogo, through a socio-economic survey and woody species inventory. Semi-structured survey of 50 household heads focused on woody species management options. The floristic inventory concerned 14 fields cultivated since 2004. Our results show that woody species potential of the 14 farms decreased from 434 trees in 2004 to 339 in 2014, a proportion of 21.89% and a decrease in species diversity which went from 37 species in 2004 to 33 in 2014. The total area of the fourteen (14) parks has expanded. Indeed, it went from 29.91 ha 2004 to 41.10 ha in 2014. In addition, the agroforestry parkland is experiencing regression of regeneration and middle-class individuals in diameter classes [20-30 cm [and [30-40 cm [. For a sustainable management, agroforestry parkland woody species regression has to be stopped.