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En zone sahelienne ou les ressources ligneuses sont relativement rares, l’espece Leptadenia pyrotechnica joue un role tres important dans la vie des populations locales. La presente etude dont l’objectif est de repertorier les connaissances locales sur les modes d’utilisation et de gestion des peuplements naturels par les populations locale de Leptadenia pyrotechnica a ete conduite dans la region de Diffa. Des enquetes ethnobotaniques ont ete conduites au niveau de cinq villages. Il s’agit de: Issari; Guelborno Mounimari, Jalori, Joulou Kriye et le marche de Digurdi. Dans l’ensemble des villages, un total de 150 personnes a ete interviewe a travers des entretiens individuels. Les principales rubriques du questionnaire administre sont relatives aux principales utilisations et leur impact sur la ressource. Il ressort de l’etude que toutes les parties de Leptadenia pyrotechnica (feuilles; rameaux, tiges, racines, ecorce et la seve) sont utilisees par les differents groupes ethniques et socioprofessionnels de la zone d’etude (Haoussa, Peulh et Kanouri). Cependant, la connaissance de l’importance et les differentes categories d’utilisation dependent d’un groupe a un autre. Les principales categories d’utilisations denombrees dans le cadre de la presente etude sont: l’utilisation comme bois energie, fixation des dunes, fourrage et pharmacopee traditionnelle. La fixation des dunes et la transhumance s’averent etre les principaux facteurs limitant la disponibilite de cette espece. Pour une conservation durable de l’espece, une norme de prelevement de Leptadenia pyrotechnica doit etre definie pour la fixation des dunes et la capacite de charge des formations a Leptadenia pyrotechnica doit etre controlee vis-a-vis des transhumances. © 2020 International Formulae Group. All rights reserved. Mots cles: Leptadenia pyrotechnica, utilisation, bois, seve, rameaux, racine English Title: Ethnobotanical importance of Leptadenia pyrotechnica Forsk. in the department of Diffa in Niger English Abstract In the Sahelian zone where wood resources are relatively rare, the species Leptadenia pyrotechnica plays a very important role in the lives of local populations. The purpose of this study, which is to identify local knowledge on the use and management of natural stands by local populations of Leptadenia pyrotechnica, was conducted in Diffa region. Ethnobotanical surveys were conducted at five villages. These are: Issari; Guelborno Mounimari, Jalori, Joulou Kriye and Digurdi market. In all the villages, a total of 150 people were interviewed through individual interviews. The main sections of the questionnaire administered relate to the main uses and their impact on the resource. The study shows that all parts of Leptadenia pyrotechnica (leaves, twigs, stems, roots, bark and sap) are used by the different ethnic and socio-occupational groups in the study area (Hausa, Fulani and Kanuri). However, knowledge of importance and the different categories of use depend on one group to another. The main categories of uses enumerated in this study are: wood energy use, dune fixation, fodder and traditional pharmacopoeia. The fixation of the dunes and the transhumance appear to be the main factors limiting the availability of this species. For a sustainable conservation of the species, a Leptadenia pyrotechnica sampling standard must be defined for the fixation of the dunes and the carrying capacity of Leptadenia pyrotechnica formations must be checked against transhumance. © 2020 International Formulae Group. All rights reserved. Keywords: Leptadenia pyrotechnica, use, wood, sap, twigs, root

Importance ethnobotanique de <i>Leptadenia pyrotechnica</i> (Forssk.) Decne. dans le département de Diffa au Niger