Résumé:
This work aims to study the characteristics and the role of ligneous species in the agroforestry
systems in Algeria. The study area is Relizane which is situated in the west of Algeria. The
approach methodology is based on a survey in the field, in a field nearby an agricultural
community in Relizane. According to the obtained results, we conclude that most of farmers
consider agroforestry as a production system having agro-environnemental qualities but in
which profitability and efficiency have to be demonstrated. The ligneous tree in particular is not perceived as an important financial ressourse. Financial and technical supports as well as sensibilization efforts have to accompany its development to insure planning success in high level.